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  • 151.
    Gawel, Danuta
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet.
    James, A. Rani
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet.
    Benson, Mikael
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Hjärt- och Medicincentrum, Allergicentrum US. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Liljenstrom, R.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet.
    Muraro, A.
    Padua University Hospital, Italy .
    Nestor, Colm
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet.
    Zhang, Huan
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet.
    Gustafsson, Mika
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet.
    The Allergic Airway Inflammation Repository - a user-friendly, curated resource of mRNA expression levels in studies of allergic airways2014Ingår i: Allergy. European Journal of Allergy and Clinical Immunology, ISSN 0105-4538, E-ISSN 1398-9995, Vol. 69, nr 8, s. 1115-1117Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Public microarray databases allow analysis of expression levels of candidate genes in different contexts. However, finding relevant microarray data is complicated by the large number of available studies. We have compiled a user-friendly, open-access database of mRNA microarray experiments relevant to allergic airway inflammation, the Allergic Airway Inflammation Repository (AAIR, http://aair.cimed.ike.liu.se/). The aim is to allow allergy researchers to determine the expression profile of their genes of interest in multiple clinical data sets and several experimental systems quickly and intuitively. AAIR also provides quick links to other relevant information such as experimental protocols, related literature and raw data files.

  • 152.
    Gehring, U
    et al.
    University of Utrecht.
    Strikwold, M
    University of Utrecht.
    Schram-Bijkerk, D
    University of Utrecht.
    Weinmayr, G
    University of Ulm.
    Genuneit, J
    University of Ulm.
    Nagel, G
    University of Ulm.
    Wickens, K
    Wellington School of Medical & Heallth Science.
    Siebers, R
    Wellington School of Medical & Heallth Science.
    Crane, J
    Wellington School of Medical & Heallth Science.
    Doekes, G
    University of Utrecht.
    Di Domenicantonio, R
    Rome E Health Authority.
    Nilsson, Lennart
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Priftanji, A
    University Hospital Centre Mother Teresa.
    Sandin, A
    Umeå University.
    El-Sharif, N
    AL Quds University.
    Strachan, D
    St Georges University London.
    van Hage, M
    Karolinska Institute.
    von Mutius, E
    University Childrens Hospital.
    Brunekreef, B
    University of Utrecht.
    Asthma and allergic symptoms in relation to house dust endotoxin: Phase Two of the International Study on Asthma and Allergies in Childhood (ISAAC II)2008Ingår i: Clinical and Experimental Allergy, ISSN 0954-7894, E-ISSN 1365-2222, Vol. 38, nr 12, s. 1911-1920Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: Several studies have consistently reported inverse associations between exposure to endotoxin in house dust and atopy. With regard to the association between house dust endotoxin and asthma, the results are inconsistent.

    Objectives: To study the association between house dust endotoxin levels and respiratory symptoms and atopy in populations from largely different countries.

    Methods: Data were collected within the International Study on Asthma and Allergies in Childhood Phase Two, a multi-centre cross-sectional study of 840 children aged 9-12 years from six centres in the five countries of Albania, Italy, New Zealand, Sweden and the United Kingdom. Living room floor dust was collected and analysed for endotoxin. Health end-points and demographics were assessed by standardized questionnaires. Atopy was assessed by measurements of allergen-specific IgE against a panel of inhalant allergens. Associations between house dust endotoxin and health outcomes were analysed by logistic regression. Odds ratios (ORs) were presented for an overall interquartile range increase in exposure.

    Results: Many associations between house dust endotoxin in living room floor dust and health outcomes varied between countries. Combined across countries, endotoxin levels were inversely associated with asthma ever [adjusted OR (95% confidence interval (CI)) 0.53 (0.29-0.96) for endotoxin levels per m(2) of living room floor] and current wheeze [adjusted OR (95% CI) 0.77 (0.64-0.93) for endotoxin levels per gram of living room floor dust]. There were inverse associations between endotoxin concentrations and atopy, which were statistically significant in unadjusted analyses, but not after adjustment for gender, parental allergies, cat and house dust mite allergens. No associations were found with dust quantity and between endotoxin exposure and hayfever.

    Conclusion: These findings suggest an inverse association between endotoxin levels in living room floor dust and asthma in children.

  • 153.
    Glad Mattsson, Gunilla
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet.
    Brännström, Monica
    Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping. Linköpings universitet, Hälsouniversitetet.
    Eldh, Monica
    Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping. Linköpings universitet, Hälsouniversitetet.
    Mattsson, Sven
    Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Voiding school for children with idiopathic urinary incontinence and/or bladder dysfunction.2010Ingår i: Journal of Pediatric Urology, ISSN 1477-5131, Vol. 6, nr 5, s. 490-495Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    OBJECTIVE: Individually applied urotherapy is first-line treatment in children with bladder dysfunction. A new concept of treatment for small groups of children was applied and evaluated.

    PATIENTS AND METHODS: Two hundred children, 116 of them girls, aged 3-14 years (median 7.2) with bladder dysfunction and incontinence received urotherapy in small groups (2-5), called voiding school (VS). Outcome was evaluated after 3 and 12 months by voiding/leakage diary and questionnaire, and at 3 months by uroflow and post-void residual urine as well.

    RESULTS: The outcome of VS was independent of age and gender. At follow up at 3 and 12 months, respectively, 35% and 40% of the children were cured and another 30% and 34% improved (P≤0.0001). Compared with the year before start of VS, urinary tract infections decreased from 34% to 6% (P<0.0001). Median residual urine decreased from 15 ml before VS to 6 ml after 3 months (P<0.001).

    CONCLUSION: The concept of VS is a good alternative to individual urotherapy, with the outcome of fewer urinary tract infections and improved continence. Urotherapy for groups of children compared to individual treatment is also expected to have financial benefits.

  • 154.
    Gradin, Maria
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik.
    Finnström, Orvar
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Schollin, J
    Comparison of oral glucose and breast-feeding on neonatal pain response to venipuncture2003Ingår i: Pediatric Research, ISSN 0031-3998, E-ISSN 1530-0447, Vol. 53, nr 4, s. 2583-Konferensbidrag (Övrigt vetenskapligt)
  • 155.
    Granbom, Elin
    et al.
    Umeå University, Sweden .
    Fernlund, Eva
    Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping. Children's Heart Centre, Lund, Sweden .
    Sunnegårdh, Jan
    Sahlgrenska University Hospital, Gothenburg, Sweden.
    Lundell, Bo
    Astrid Lindgren Childrens Hospital, Stockholm, Sweden.
    Naumburg, Estelle
    Umeå University, Sweden .
    Evaluating national guidelines for the prophylactic treatment of respiratory syncytial virus in children with congenital heart disease2014Ingår i: Acta Paediatrica, ISSN 0803-5253, E-ISSN 1651-2227, Vol. 103, nr 8, s. 840-845Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Aim: This is the first study to evaluate compliance with the 2003 Swedish national guidelines for prophylactic treatment of respiratory syncytial virus (RSV) in children with congenital heart disease (CHD). We estimated the relative risk (RR) of children with CHD being hospitalised with a RSV infection, studied the extent to which RSV prophylactic treatment with palivizumab corresponded to the guidelines and determined the morbidity of children with CHD who developed RSV infection despite prophylaxis.

    Methods: This national observational study comprised prospectively registered data on 219 children with CHD treated with palivizumab, medical records on RSV cases and information on hospitalisation rates of children with CHD and RSV infection.

    Results: The calculated RR of children with CHD being hospitalised with RSV infection was 2.06 (950/0 Cl 1.6-2.6; p less than 0.0001) compared with children without CHD. Approximately half of the patients (49%) born before the RSV season and 25% born during the RSV season did not start treatment as recommended by the guidelines.

    Conclusion: Having CHD increased the rate and estimated RR of children being hospitalised with RSV infection. The guidelines were not followed for about half of the children born before a RSV season and a quarter of the children born during a RSV season and need updating.

  • 156. Grant, C
    et al.
    Högberg, Lotta
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Norrköping.
    Fälth-Magnusson, Karin
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Grodzinsky, Ewa
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för hälsa och samhälle, Allmänmedicin. Östergötlands Läns Landsting, Närsjukvården i västra Östergötland, Forsknings- och utvecklingsenheten för Närsjukvården i Östergötland.
    Sundqvist, Tommy
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Medicinsk mikrobiologi.
    Stenhammar, Lars
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    The clinical relevance of duodenal intraepithelial lymphocyte counts in children treated for disease2008Ingår i: Acta Paediatrica, ISSN 0803-5253, E-ISSN 1651-2227Artikel i tidskrift (Refereegranskat)
    Abstract [en]

      

  • 157.
    Graspemo, Gabriella
    et al.
    Linköpings universitet, Tekniska högskolan. Linköpings universitet, Institutionen för datavetenskap, MDALAB - Human Computer Interfaces.
    Ludvigsson, Johnny
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Nordfeldt, Sam
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Barn- och ungdomspsykiatri.
    Informationstekniken ger chans till genuint patientbemyndigande. Nästa generation patienter med typ 1-diabetes surfar sig fram till egenmakt.2005Ingår i: Läkartidningen, ISSN 0023-7205, E-ISSN 1652-7518, Vol. 102, nr 34, s. 2316-2318Artikel i tidskrift (Övrigt vetenskapligt)
  • 158.
    Gullstrand, Camilla
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet.
    Wahlberg Topp, Jeanette
    Linköpings universitet, Institutionen för medicin och hälsa, Internmedicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Hjärt- och Medicincentrum, Endokrin- och magtarmmedicinska kliniken US.
    Ilonen, Jorma
    Dept of Microbiology Kuopio, Finland.
    Vaarala, Outi
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet.
    Ludvigsson, Johnny
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Progression to type 1 diabetes and autoantibody positivity in relation to HLA-risk genotypes in children participating in the ABIS study2008Ingår i: Pediatric Diabetes, ISSN 1399-543X, E-ISSN 1399-5448, Vol. 9, nr 3 PART 1, s. 182-190Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: Autoantibodies against beta-cell antigens together with human leukocyte antigen (HLA)-risk genotypes are used as predictive markers for type 1 diabetes (T1D). In this study, we have investigated the role of HLA-risk and -protective genotypes for development of beta-cell autoantibodies and progression to T1D in healthy children. Methods: T1D-related HLA genotypes and autoantibodies against glutamic acid decarboxylase [glutamic acid decarboxylase antibodies (GADA)] and islet antigen-2 (IA-2A) were studied at 1, 2.5 and 5 yr of age in unselected healthy children and children with T1D participating in the All Babies In Southeast Sweden (ABIS) study. Results: GADA or IA-2A positivity at 5 yr of age was associated with DR4-DQ8 haplotype and DR3-DQ2/DR4-DQ8 genotype. By the age of 6-7 yr, we identified 32 children with T1D among the 17 055 participants in the ABIS study. Eight of 2329 (0.3%) non-diabetic children had permanent autoantibodies, and 143 of 2329 (6%) children had transient autoantibodies. HLA-risk genotypes associated with T1D, whereas protective genotypes were seldom found in children with T1D. Children with permanent autoantibodies had more often risk-associated DR4-DQ8 haplotype than autoantibody-negative children. No associations with HLA-risk or -protective genotypes were found for transient autoantibodies. Conclusions: The strong relation between HLA-risk alleles and T1D once again confirmed that HLA-risk genotypes play an important role for development of T1D. However, HLA genotypes seem not to explain induction of autoantibodies, especially transient autoantibodies, in the general population, emphasizing the role of environmental factors in the initiation of autoimmunity. It seems that HLA-risk genotypes are responsible for maturation of the permanent autoantibody response. © 2008 The Authors Journal compilation © 2008 Blackwell Munksgaard.

  • 159.
    Gunnarsson, Cecilia
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Laboratoriemedicinskt centrum, Klinisk patologi och klinisk genetik.
    Foyn Bruhn, Cathrine
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Molecular Characterization and Clinical Features of a Patient With an Interstitial Deletion of 3p25.3-p26.12010Ingår i: AMERICAN JOURNAL OF MEDICAL GENETICS PART A, ISSN 1552-4825, Vol. 152A, nr 12, s. 3110-3114Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Distal chromosome 3p deletions (3p- syndrome) are associated with various developmental defects. The majority of cases have a terminal deletion of the short arm of chromosome 3 with loss of either the maternal or the paternal copy. A girl with an interstitial molecularly characterized 1.6 Mb deletion in cytoband 3p25.3-26.1 of the paternal chromosome 3 is presented. To our knowledge, she possesses the smallest deletion that has ever been reported for a patient with a clinical phenotype in accordance with the 3p- syndrome. The boundaries of the deletion lies within nearly all previously reported terminal deletions causing this syndrome. Selected genes that are present in the hemizygous state and which might be important for the phenotype of this patient as regards the congenital heart defect, autistic behavior and mental retardation (CAV3, OXTR, and SRGAP3/MEGAP, respectively) are discussed in context of the clinical features.

  • 160.
    Gunnarsson, Cecilia
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Laboratoriemedicinskt centrum, Klinisk patologi och klinisk genetik.
    Graffmann, Barbara
    Linköpings universitet, Institutionen för klinisk och experimentell medicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Jonasson, Jon
    Linköpings universitet, Institutionen för klinisk och experimentell medicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Laboratoriemedicinskt centrum, Klinisk patologi och klinisk genetik.
    Chromosome r(10)(p15.3q26.12) in a newborn child: case report.2009Ingår i: Molecular Cytogenetics, ISSN 1755-8166, Vol. 2, s. 25-Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    ABSTRACT: BACKGROUND: Ring chromosome 10 is a rare cytogenetic finding. Of the less than 10 reported cases we have found in the literature, none was characterized using high-resolution microarray analysis. Ring chromosomes are frequently unstable due to sister chromatid exchanges and mitotic failures. When mosaicism is present, the interpretation of genotype-phenotype correlations becomes extremely difficult. RESULTS: We report on a newborn girl with growth retardation, microcephaly, congenital heart defects, dysmorphic features and psychomotor retardation. Karyotyping revealed a non-mosaic apparently stable ring chromosome 10 replacing one of the normal homologues in all analyzed metaphases. High-resolution oligonucleotide microarray analysis showed a de novo approximately 12.5 Mb terminal deletion 10q26.12 -> qter and a corresponding 285 kb terminal deletion of 10pter -> p15.3. CONCLUSION: This case demonstrates that an increased nuchal translucency thickness detected by early ultrasonography should preferably lead to not only QF-PCR for the diagnosis of Down syndrome but also karyotyping. In the future, microarray analysis, which needs further evaluation, might become the method of choice. The clinical phenotype of our patient was in agreement with that of patients with a terminal 10q deletion. For the purpose of genotype-phenotype analysis, there seems to be no need for a "ring syndrome" concept.

  • 161. Gupta, M
    et al.
    Ludvigsson, Johnny
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Sanjeevi, CB
    Frequency of MICA in all babies in southeast Sweden (ABIS) positive for high-risk HLA-DQ associated with type 1 diabetes2004Ingår i: Annals of the New York Academy of Sciences, ISSN 0077-8923, E-ISSN 1749-6632, Vol. 1037, s. 138-144Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Type 1 diabetes mellitus (T1DM) is an autoimmune disease known to occur in genetically susceptible individuals after exposure to certain unknown environmental factors. HLA-DR3-DQ2 or DR4-DQ8 are established genetic markers for the disease. MHC class I chain-related gene-A (MICA) gene polymorphism has been proposed to be associated with T1DM. To identify the environmental factors and for implementing intervention trials to prevent T1DM, it is important to screen subjects at genetically increased risk for developing T1DM. The All Babies in Southeast Sweden (ABIS) study aims to assess the risk of future progression to T1DM in the general child population. In the present report, we studied the frequency of MICA alleles among newborn babies carrying high-risk HLA DQ2 or DQ8. Of 2821 newborns, we found 563 subjects positive for DQ2, 583 subjects positive for DQ8, 133 subjects positive for DQ2-DQ8 (heterozygous), and 1013 subjects positive for either DQ2 or DQ8. Of these 1013 babies, we typed 499 babies for MICA. Frequency of MICA5 was 38% among DQ8+9 35% among for DQ2-DQ8 (heterozygous) positives, and 22.5% among DQ2+ babies. Frequency of MICA5.1 was 81% among DQ+, 62% among DQ8+, and 71% among DQ2.-DQ8 (heterozygous) positives. Frequency of MICA6 was between 20% and 22% among the three groups. Frequency of MICA5/5.1 was 19% among DQ2-DQ8 (heterozygous) positives and between 12% and 13% among those positive for DQ2, DQ89 DQ2, or DQ8. The results from genetic typing in this study would be useful, in conjunction with results from autoantibody analysis that are prospectively being followed-up in all the babies, to develop an approach for identifying children at risk for developing T1DM. Inclusion of MICA typing in addition to HLA could be useful for screening of genetic markers associated with T1DM.

  • 162.
    Gustafsson, Mika
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet.
    Edström, Måns
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för inflammationsmedicin. Linköpings universitet, Hälsouniversitetet.
    Gawel, Danuta
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet.
    Nestor, Colm
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet.
    Wang, Hui
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet.
    Zhang, Huan
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet.
    Barrenäs, Fredrik
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet.
    Tojo, James
    Karolinska Institute, Sweden Centre Molecular Med, Sweden .
    Kockum, Ingrid
    Karolinska Institute, Sweden Centre Molecular Med, Sweden .
    Olsson, Tomas
    Karolinska Institute, Sweden Centre Molecular Med, Sweden .
    Serra-Musach, Jordi
    IDIBELL, Spain .
    Bonifaci, Nuria
    IDIBELL, Spain .
    Angel Pujana, Miguel
    IDIBELL, Spain .
    Ernerudh, Jan
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för inflammationsmedicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Diagnostikcentrum, Klinisk immunologi och transfusionsmedicin.
    Benson, Mikael
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Hjärt- och Medicincentrum, Allergicentrum US. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Integrated genomic and prospective clinical studies show the importance of modular pleiotropy for disease susceptibility, diagnosis and treatment2014Ingår i: Genome Medicine, ISSN 1756-994X, E-ISSN 1756-994X, Vol. 6, nr 17Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: Translational research typically aims to identify and functionally validate individual, disease-specific genes. However, reaching this aim is complicated by the involvement of thousands of genes in common diseases, and that many of those genes are pleiotropic, that is, shared by several diseases. Methods: We integrated genomic meta-analyses with prospective clinical studies to systematically investigate the pathogenic, diagnostic and therapeutic roles of pleiotropic genes. In a novel approach, we first used pathway analysis of all published genome-wide association studies (GWAS) to find a cell type common to many diseases. Results: The analysis showed over-representation of the T helper cell differentiation pathway, which is expressed in T cells. This led us to focus on expression profiling of CD4(+) T cells from highly diverse inflammatory and malignant diseases. We found that pleiotropic genes were highly interconnected and formed a pleiotropic module, which was enriched for inflammatory, metabolic and proliferative pathways. The general relevance of this module was supported by highly significant enrichment of genetic variants identified by all GWAS and cancer studies, as well as known diagnostic and therapeutic targets. Prospective clinical studies of multiple sclerosis and allergy showed the importance of both pleiotropic and disease specific modules for clinical stratification. Conclusions: In summary, this translational genomics study identified a pleiotropic module, which has key pathogenic, diagnostic and therapeutic roles.

  • 163.
    Gustafsson, Mika
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet.
    Nestor, Colm
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet.
    Zhang, Huan
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet.
    Barabasi, Albert-Laszlo
    Northeastern University, MA 02115 USA.
    Baranzini, Sergio
    University of Calif San Francisco, CA 94143 USA.
    Brunak, Soeren
    Technical University of Denmark, Denmark; University of Copenhagen, Denmark.
    Fan Chung, Kian
    University of London Imperial Coll Science Technology and Med, England.
    Federoff, Howard J.
    Georgetown University, DC 20057 USA.
    Gavin, Anne-Claude
    European Molecular Biol Lab, Germany.
    Meehan, Richard R.
    University of Edinburgh, Scotland.
    Picotti, Paola
    University of Zurich, Switzerland.
    Angel Pujana, Miguel
    Bellvitge Biomed Research Institute IDIBELL, Spain.
    Rajewsky, Nikolaus
    Max Delbruck Centre Molecular Med, Germany.
    Smith, Kenneth G. C.
    University of Cambridge, England; University of Cambridge, England.
    Sterk, Peter J.
    University of Amsterdam, Netherlands.
    Villoslada, Pablo
    Hospital Clin Barcelona, Spain; Hospital Clin Barcelona, Spain.
    Benson, Mikael
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Hjärt- och Medicincentrum, Allergicentrum US. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Modules, networks and systems medicine for understanding disease and aiding diagnosis2014Ingår i: Genome Medicine, ISSN 1756-994X, E-ISSN 1756-994X, Vol. 6, nr 82Artikel, forskningsöversikt (Refereegranskat)
    Abstract [en]

    Many common diseases, such as asthma, diabetes or obesity, involve altered interactions between thousands of genes. High-throughput techniques (omics) allow identification of such genes and their products, but functional understanding is a formidable challenge. Network-based analyses of omics data have identified modules of disease-associated genes that have been used to obtain both a systems level and a molecular understanding of disease mechanisms. For example, in allergy a module was used to find a novel candidate gene that was validated by functional and clinical studies. Such analyses play important roles in systems medicine. This is an emerging discipline that aims to gain a translational understanding of the complex mechanisms underlying common diseases. In this review, we will explain and provide examples of how network-based analyses of omics data, in combination with functional and clinical studies, are aiding our understanding of disease, as well as helping to prioritize diagnostic markers or therapeutic candidate genes. Such analyses involve significant problems and limitations, which will be discussed. We also highlight the steps needed for clinical implementation.

  • 164.
    Gustafsson, Per
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Barn- och ungdomspsykiatri. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Närsjukvården i centrala Östergötland, Barn- och ungdomspsykiatriska kliniken.
    Birberg Thornberg, Ulrika
    Linköpings universitet, Institutionen för beteendevetenskap och lärande. Linköpings universitet, Filosofiska fakulteten.
    Duchén, Karel
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Landgren, Magnus
    Department of Pediatrics, Mariestad, Sweden .
    Malmberg, Kerstin
    Karolinska Institutet, Stockholm.
    Pelling, Henrik
    Uppsala University.
    Strandvik, Birgitta
    Gothenburg University, Sweden.
    Karlsson, Thomas
    Linköpings universitet, Institutionen för beteendevetenskap och lärande. Linköpings universitet, Filosofiska fakulteten.
    EPA supplementation improves teacher-rated behaviour and oppositional symptoms in children with ADHD2010Ingår i: Acta Paediatrica, ISSN 0803-5253, E-ISSN 1651-2227, Vol. 99, nr 10, s. 1540-1549Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Aim: Measure efficacy of eicosapentaenoic acid (EPA) in children with attention deficit hyperactivity disorder (ADHD). Methods: Randomized controlled trial (RCT) of 0.5 g EPA or placebo (15 weeks) in 92 children (7-12 years) with ADHD. Efficacy measure was Conners Parent/Teacher Rating Scales (CPRS/CTRS). Fatty acids were analysed in serum phospholipids and red blood cell membranes (RBC) at baseline and endpoint with gas chromatography. Results: EPA improved CTRS inattention/cognitive subscale (p = 0.04), but not Conners total score. In oppositional children (n = 48), CTRS total score improved andgt;= 25% in 48% of the children receiving EPA vs. 9% for placebo [effect size (ES) 0.63, p = 0.01]. In less hyperactive/impulsive children (n = 44), andgt;= 25% improvement was seen in 36% vs. 18% (ES 0.41, n.s.), and with both these types of symptoms 8/13 with EPA vs. 1/9 for placebo improved andgt;= 25% (p = 0.03). Children responding to treatment had lower EPA concentrations (p = 0.02), higher AA/EPA (p = 0.005) and higher AA/DHA ratios (p = 0.03) in serum at baseline. Similarly, AA/EPA (p = 0.01), AA/DHA (p = 0.038) and total omega-6/omega-3 ratios (p = 0.028) were higher in RBC, probably because of higher AA (p = 0.011). Conclusion: Two ADHD subgroups (oppositional and less hyperactive/impulsive children) improved after 15-week EPA treatment. Increasing EPA and decreasing omega-6 fatty acid concentrations in phospholipids were related to clinical improvement.

  • 165.
    Gustafsson, Per
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Barn- och ungdomspsykiatri. Östergötlands Läns Landsting, Närsjukvården i centrala Östergötland, Barn- och ungdomspsykiatriska kliniken.
    Duchén, Karel
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Birberg, Ulrika
    Linköpings universitet, Institutionen för beteendevetenskap. Linköpings universitet, Filosofiska fakulteten.
    Karlsson, Thomas
    Linköpings universitet, Institutionen för beteendevetenskap. Linköpings universitet, Filosofiska fakulteten.
    Breastfeeding, very long polyunsaturated fatty acids (PUFA) and IQ at 6 1/2 years of age2004Ingår i: Acta Paediatrica, ISSN 0803-5253, E-ISSN 1651-2227, Vol. 93, nr 10, s. 1280-1287Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Aim: Breastfeeding seems to be favorable for cognitive development. Could levels of polyunsaturated fatty acids (PUFA) explain this? Methods: Pregnant mothers were recruited consecutively at maternity care centres. PUFA were analysed in colostrum and breast milk at 1 and 3 mo. The product-precursor ratios of n-6+n-3 PUFA were examined as measures of activity in respective steps in the fatty acid metabolic chain. Also, the quotient between DHA and AA was analysed. The children were tested with the full WISC-III at 6.5 y. Results: First, the influence of length of breastfeeding was analysed by multiple regression together with relevant cofactors (except for PUFA). In the best models, 46% of the variation in total IQ was explained. Length of breastfeeding contributed significantly to total IQ (beta = 0.228, p = 0.021), verbal IQ (beta = 0.204, p = 0.040) and performance IQ (beta = 0.210, p = 0.056). There were no significant single correlations between PUFA and measures of cognitive development. However, in multiple regression analysis of colostrum, significant beta-coefficients were found for steps 4+5 in the fatty acid metabolic chain (beta = 0.559, p = 0.002). If length of breastfeeding and gestation week were added to steps 4+5, this three-factor model could explain 67% of the variation of total IQ. Introducing length of breastfeeding and gestation week together with the quotient DHA/AA (beta = 0.510, p < 0.001) yielded a three-factor model, which explained 76% of the variation in total IQ. Conclusion: Our findings could be interpreted as supporting the importance of high levels of PUFA for cognitive development. However, the sample is small and the results must be interpreted with caution.

  • 166.
    Gustafsson, Per E
    et al.
    Dept. of Public Health and Clinical Medicine, Family Medicine, Umeå University.
    Anckarsäter, Henrik
    Dept. of Neuroscience and Physiology, Forensic Psychiatry, Gothenburg University.
    Lichtenstein, Paul
    Dept. of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm.
    Nelson, Nina
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Gustafsson, Per A
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Barn- och ungdomspsykiatri. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Närsjukvården i centrala Östergötland, Barn- och ungdomspsykiatriska kliniken.
    Does quantity have a quality all its own?: Cumulative adversity and up- and down-regulation of circadian salivary cortisol levels in healthy children2010Ingår i: Psychoneuroendocrinology, ISSN 0306-4530, E-ISSN 1873-3360, Vol. 35, nr 9, s. 1410-1415Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Findings have been divergent regarding the direction of basal cortisol dysregulations resulting from stressor exposure, and seem to differ between young people and adults. Accumulated stress exposure has been suggested to be a risk factor for the development of hypocortisolism. This cross-sectional study aims to examine the impact of cumulative adversity, i.e., the number of adversities, on diurnal salivary cortisol levels, including the cortisol awakening response (CAR), in children without psychiatric disorder. The sample consisted of 130 children (mean age 12.8 years), representing one in each twin pair included in the population-based Child and Adolescent Twin Study in Sweden (CATSS). Information about socioeconomic disadvantage, negative life events and potentially traumatic life events were collected by telephone interview and questionnaires, with parents as informants. Salivary cortisol sampling was performed in the home during two school days: at awakening, +30 min post-awakening, and at bedtime. Results showed that the number of adversities was related to the CAR, diurnal decline and +30 min post-awakening cortisol levels. Children with a moderate amount of cumulative adversity displayed high cortisol measures, while those with a high amount (3 or more) of adversities instead showed levels similar to the non-exposed group, yielding an inverse U-pattern of the association between cortisol and adversity. These results indicate that the accumulation of adversity might be an explanation of patterns of basal cortisol up-regulation in children and that those most severely exposed can exhibit an early stage of down-regulation, an issue which should be further examined in longitudinal studies.

  • 167.
    Gustafsson, Per E.
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Barn- och ungdomspsykiatri. Linköpings universitet, Hälsouniversitetet.
    Gustafsson, Per A.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Barn- och ungdomspsykiatri. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Närsjukvården i centrala Östergötland, Barn- och ungdomspsykiatriska kliniken.
    Ivarsson, Tord
    Department of Child and Adolescent Psychiatry, Göteborg University, Göteborg, Sweden; The Regional Center for Child and Adolescent Psychiatry (R. BUP), Oslo, Norway.
    Nelson, Nina
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Diurnal Cortisol Levels and Cortisol Response in Youths with Obsessive-Compulsive Disorder2008Ingår i: Neuropsychobiology, ISSN 0302-282X, E-ISSN 1423-0224, Vol. 57, nr 1-2, s. 14-21Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background/Aims: Recent results indicate a role of the hypothalamic-pituitary-adrenal (HPA) axis in the pathophysiology of obsessive-compulsive disorder (OCD). Although childhood onset is common, the HPA axis has scarcely been studied in young OCD subjects. Therefore, the present study aimed at examining basal and response levels of salivary cortisol in a sample of young OCD subjects.

    Methods: Twenty-three children and adolescents with DSM-IV OCD were compared to a reference group of school children (n = 240-336). The basal cortisol rhythm was measured through saliva samples 3 times/day. The cortisol response to a psychological stressor (exposure therapy in the OCD group and a fire alarm in the reference group) was also examined.

    Results: Compared to the reference group, OCD subjects displayed higher early-morning cortisol values (p = 0.005) with no difference between the late-morning and evening values. The cortisol levels in the OCD group diminished in response to the psychological stressor, compared to a positive response in the reference group (p < 0.001). No relation was found between cortisol and clinical parameters.

    Conclusion: These results support the idea that HPA hyperactivity, commonly found in adult OCD patients, is also present at an earlier stage of development, with specificity for the early-morning peak.

  • 168.
    Gustafsson, Per E.
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Barn- och ungdomspsykiatri. Linköpings universitet, Hälsouniversitetet.
    Nelson, Nina
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Gustafsson, Per A
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Barn- och ungdomspsykiatri. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Närsjukvården i centrala Östergötland, Barn- och ungdomspsykiatriska kliniken.
    Diurnal cortisol levels, psychiatric symptoms and sense of coherence in abused adolescents2010Ingår i: Nordic Journal of Psychiatry, ISSN 0803-9488, E-ISSN 1502-4725, Vol. 64, nr 1, s. 27-31Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background. The role of the HPA axis in psychiatric disorders following trauma is poorly studied and most studies have been done on adults. Aims. To investigate the association of mental well-being and diurnal cortisol in abused adolescents. Methods. The present crosssectional study examined diurnal salivary cortisol (measured three times a day during three days) in relation to psychiatric symptoms (Trauma Symptoms Checklist for Children) and the salutogenic construct “Sense of coherence”, in fifteen adolescents exposed to childhood abuse. Results. Significant positive correlations were found between symptoms and sense of coherence versus early and late morning cortisol concentrations. The correlations were most consistent for internalizing and externalizing symptoms, and somewhat less for post-traumatic symptoms and sense of coherence. In contrast, evening cortisol did not correlate with any of the psychological measures. Conclusion. These results extend previous research findings by pointing towards a relation between symptoms and higher morning cortisol and accentuated diurnal cortisol variation in abused adolescent as opposed to lower basal cortisol and a flattening of the cortisol rhythm repeatedly observed in traumatized adults.

  • 169.
    Gustafsson, Per E
    et al.
    Folkhälsa och Klinisk Medicin/Socialmedicin, Umeå University.
    Szczepanski, Anders
    Linköpings universitet, Institutionen för beteendevetenskap och lärande. Linköpings universitet, Institutionen för kultur och kommunikation, Estetiska avdelningen. Linköpings universitet, Filosofiska fakulteten.
    Nelson, Nina
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Gustafsson, Per A
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Barn- och ungdomspsykiatri. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Närsjukvården i centrala Östergötland, Barn- och ungdomspsykiatriska kliniken.
    Effects of an outdoor education intervention on the mental health of schoolchildren2012Ingår i: Journal of Adventure Education and Outdoor Learning, ISSN 1472-9679, E-ISSN 1754-0402, Vol. 12, nr 1, s. 63-79Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This study aimed at examining the effects of an outdoor educational intervention on the mental health of schoolchildren. Two elementary schools participated (N = 230); one experimental school where the intervention was implemented, and the other a reference school. Demographic questions and the Strengths and Difficulties Questionnaire were completed by the parents. An outdoor educational intervention was implemented at the experimental school, and the data collection was repeated after one year. The results point towards a small but non-significant improvement in mental health at the experimental school while adjusting for demographics. However, this effect was significantly moderated by gender: boys generally fared better than girls at the intervention school, relative to the reference school. The results indicate that it may be important to address gender issues when educational programmes are implemented in schools.

  • 170.
    Gustafsson, Per
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Barn- och ungdomspsykiatri. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Närsjukvården i centrala Östergötland, Barn- och ungdomspsykiatriska kliniken.
    Gustafsson, Per E
    Umeå University.
    Anckarsater, Henrik
    Gothenburg University.
    Lichtenstein, Paul
    Karolinska Institute.
    Ljung, Therese
    Karolinska Institute.
    Nelson, Nina
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Larsson, Henrik
    Karolinska Institute.
    Heritability of Cortisol Regulation in Children2011Ingår i: Twin Research and Human Genetics, ISSN 1832-4274, E-ISSN 1839-2628, Vol. 14, nr 6, s. 553-561Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: The normal development of cortisol regulation during childhood is thought to be influenced by a complex interplay between environmental and genetic factors. Method: The aim of this study was to estimate genetic and environmental influences on basal cortisol levels in a sample of 151 twin pairs aged 9-16 years. Salivary cortisol was collected on two consecutive days when the children attended school immediately after awakening, 30 min post-awakening and at bedtime. Results: Heritability was highest (60%) for cortisol levels about 30 min after awakening. For samples taken immediately at awakening heritability was less pronounced (28%) and in the evening low (8%). Conclusion: The limited genetic influence on evening levels, moderate on cortisol at awakening and high on awakening response, might imply two genetic regulation patterns, one specifically for awakening response and one for the circadian rhythm proper. These findings could explain divergent results in previous studies and highlight the importance of taking the circadian rhythm into account in studies of cortisol levels in children.

  • 171.
    Gyllenberg, A
    et al.
    Karolinska Insitutet, Sweden .
    Asad, S
    Karolinska Insitutet, Sweden .
    Piehl, F
    Karolinska Insitutet, Sweden .
    Swanberg, M
    Lund University, Sweden .
    Padyukov, L
    Karolinska Institute, Sweden .
    Van Yserloo, B
    University of Washington, USA .
    Rutledge, E A
    Salish Kootenai Coll, USA .
    McNeney, B
    Simon Fraser University, Canada .
    Graham, J
    Simon Fraser University, Canada .
    Orho-Melander, M
    Skåne University Hospital, Sweden .
    Lindholm, E
    Skåne University Hospital, Sweden .
    Graff, C
    Karolinska Institute, Sweden Karolinska University Hospital Huddinge, Sweden .
    Forsell, C
    Karolinska Institute, Sweden Karolinska University Hospital Huddinge, Sweden .
    Akesson, K
    Ryhov County Hospital, Sweden .
    Landin-Olsson, M
    Skåne University Hospital, Sweden .
    Carlsson, A
    Skåne University Hospital, Sweden .
    Forsander, G
    Sahlgrenska Ostra University Hospital, Sweden .
    Ivarsson, S A
    Skåne University Hospital, Sweden .
    Larsson, H
    Skåne University Hospital, Sweden .
    Lindblad, B
    University of Gothenburg, Sweden .
    Ludvigsson, Johnny
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Marcus, C
    Karolinska Institute, Sweden .
    Lernmark, A
    Skåne University Hospital, Sweden University of Washington, WA USA .
    Alfredsson, L
    Karolinska Institute, Sweden .
    Akesson, K
    Lund University, Sweden Skåne University Hospital, Sweden .
    Olsson, T
    Karolinska Insitutet, Sweden .
    Kockum, I
    Karolinska Insitutet, Sweden .
    Age-dependent variation of genotypes in MHC II transactivator gene (CIITA) in controls and association to type 1 diabetes2012Ingår i: Genes and Immunity, ISSN 1466-4879, E-ISSN 1476-5470, Vol. 13, nr 8, s. 632-640Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The major histocompatibility complex class II transactivator (CIITA) gene (16p13) has been reported to associate with susceptibility to multiple sclerosis, rheumatoid arthritis and myocardial infarction, recently also to celiac disease at genome-wide level. However, attempts to replicate association have been inconclusive. Previously, we have observed linkage to the CIITA region in Scandinavian type 1 diabetes (T1D) families. Here we analyze five Swedish T1D cohorts and a combined control material from previous studies of CIITA. We investigate how the genotype distribution within the CIITA gene varies depending on age, and the association to T1D. Unexpectedly, we find a significant difference in the genotype distribution for markers in CIITA (rs11074932, P = 4 x 10(-5) and rs3087456, P = 0.05) with respect to age, in the collected control material. This observation is replicated in an independent cohort material of about 2000 individuals (P = 0.006, P = 0.007). We also detect association to T1D for both markers, rs11074932 (P = 0.004) and rs3087456 (P = 0.001), after adjusting for age at sampling. The association remains independent of the adjacent T1D risk gene CLEC16A. Our results indicate an age-dependent variation in CIITA allele frequencies, a finding of relevance for the contrasting outcomes of previously published association studies.

  • 172.
    Gyllenberg, Alexandra
    et al.
    Karolinska Institute, Sweden .
    Asad, Samina
    Karolinska Institute, Sweden .
    Piehl, Fredrik
    Karolinska Institute, Sweden .
    Swanberg, Maria
    Lund University, Sweden .
    Padyukov, Leonid
    Karolinska Institute, Sweden .
    Van Yserloo, Brian
    University of Washington, USA .
    A. Rutledge, Elizabeth
    Salish Kootenai Coll, USA .
    McNeney, Brad
    Simon Fraser University, Canada .
    Graham, Jinko
    Simon Fraser University, Canada .
    Orho-Melander, Marju
    Skåne University Hospital, Sweden .
    Lindholm, Eero
    Skåne University Hospital, Sweden .
    Graff, Caroline
    Karolinska Institute, Sweden Karolinska University Hospital Huddinge, Sweden .
    Forsell, Charlotte
    Karolinska Institute, Sweden .
    Akesson, Karin
    Ryhov County Hospital, Sweden Lund University, Sweden Skåne University Hospital, Sweden .
    Landin-Olsson, Mona
    Skåne University Hospital, Sweden .
    Carlsson, Annelie
    Skåne University Hospital, Sweden .
    Forsander, Gun
    Sahlgrenska Ostra University Hospital, Sweden .
    A. Ivarsson, Sten
    Skåne University Hospital, Sweden .
    Larsson, Helena
    Skåne University Hospital, Sweden .
    Lindblad, Bengt
    University of Gothenburg, Sweden .
    Ludvigsson, Johnny
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Marcus, Claude
    Karolinska Institute, Sweden .
    Lernmark, Ake
    Skåne University Hospital, Sweden University of Washington, WA USA .
    Alfredsson, Lars
    Karolinska Institute, Sweden .
    Akesson, Kristina
    Ryhov County Hospital, Sweden Lund University, Sweden Skåne University Hospital, Sweden .
    Olsson, Tomas
    Karolinska Institute, Sweden .
    Kockum, Ingrid
    Karolinska Institute, Sweden .
    Age Dependent Variation of Genotypes in MHCII Transactivator Gene (CIITA) in Controls and Association to Type 1 Diabetes in SCANDINAVIAN JOURNAL OF IMMUNOLOGY, vol 76, issue 2, pp 202-2032012Ingår i: SCANDINAVIAN JOURNAL OF IMMUNOLOGY, Blackwell Publishing , 2012, Vol. 76, nr 2, s. 202-203Konferensbidrag (Refereegranskat)
    Abstract [en]

    n/a

  • 173.
    Gäddlin, Per-Olof
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet.
    Finnström, Orvar
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Hellgren, Kerstin
    Department of Ophthalmology, University Hospital, Uppsala, and Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
    Leijon, Ingemar
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Hospital readmissions and morbidity in a fifteen-year follow-up of very low birthweight children in Southeast Sweden2007Ingår i: Acta Paediatrica, ISSN 0803-5253, E-ISSN 1651-2227, Vol. 96, nr 4, s. 499-505Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Aim: To study the effect of very low birthweight on hospital care and morbidity, and their relationship to gender, birthweight, and neonatal complications.

    Methods: 85 very low birthweight (VLBW; ≤1500 g) children and term controls born in 1987-1988 in south-east region of Sweden were checked in registers regarding readmissions and diagnoses, need for habilitation and child psychiatric care up to 15 years of age. Ophthalmological examinations were made at age 4 in 64 of VLBW and 61 of control children, and at age 15 in 59 of VLBW and 55 of control children.

    Results: VLBW boys had three times more readmissions compared with normal weight control boys (p=0.003). Neonatal risk factors for readmissions were gestational age under 30 weeks (OR 3.1), birthweight less than 1000 g (OR 4.6), mechanical ventilation (OR 9.5), and more than 60 days’ stay in neonatal ward (OR 5.0). A minority of VLBW children had an impairment/handicap such as cerebral palsy (CP) in five (5.9 %) children, attention deficit hyperactivity disorders (ADHD) in five children, and blindness due to retinopathy of prematurity in one child. One child in the control group had ADHD. At the 15-year examination median visual acuity in the best eye was better in the control group (1.6) than in the VLBW group (1.3) (p=0.009). 32% of VLBW children and 11% of controls had latent or manifest strabismus (p=0.007).

    Conclusion: Risk factors for readmissions were gender, low gestational age, birthweight <1000 g or mechanical ventilation. A minority of VLBW children had a handicap that influenced their daily life activities at 15 years of age.

  • 174.
    Gäddlin, Per-Olof
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet.
    Finnström, Orvar
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Samuelsson, Stefan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande. Linköpings universitet, Filosofiska fakulteten.
    Wadsby, Marie
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Barn- och ungdomspsykiatri. Linköpings universitet, Hälsouniversitetet.
    Wang, Chen
    Department of Neuroradiology, Karolinska University Hospital, Stockholm, Sweden.
    Leijon, Ingemar
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Academic achievement, behavioural outcomes and MRI findings at 15 years of age in very low birthweight children2008Ingår i: Acta Paediatrica, ISSN 0803-5253, E-ISSN 1651-2227, Vol. 97, nr 10, s. 1426-1432Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Aim: To assess cognitive, academic, and behavioural functions in 15-year-old very low birthweight (VLBW) children and relate results to gender, neonatal risk factors, growth, and Magnetic Resonance Imaging (MRI) findings.

    Methods: 61/86 VLBW children and 57/86 term controls born in the south-east region of Sweden were assessed regarding cognition (WISC III), school outcome, behaviour, and growth. VLBW children were examined using cerebral MRI.

    Results: VLBW children performed significantly lower than their term controls on WISC III and 49% had IQ lower than 85. Ten VLBW children with IQ <70 had not been clinically identified earlier and a majority of these children attended mainstream school. VLBW girls had significantly lower total problems scores. Using MRI, white matter damage (WMD) was detected in 16 (27%) children. VLBW boys with WMD had significantly lower IQ than those without. Small occipito-frontal circumference correlated with low IQ. Mechanical ventilation and intraventricular haemorrhage (IVH) showed significant correlations with lower IQ and reading skills.

    Conclusion: VLBW children achieved poorer results compared with their controls in cognitive tests. Mechanical ventilation and IVH were related to poorer academic outcome. Many of the children with low IQ had not been identified earlier. Therefore, we recommend that VLBW children undergo an IQ test before beginning school in order to receive adequate support.

  • 175.
    Gäddlin, Per-Olof
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet.
    Finnström, Orvar
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Wang, Chen
    Department of Neuroradiology, Karolinska University Hospital, Stockholm, Sweden.
    Leijon, Ingemar
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    A fifteen-year follow-up of neurological conditions in VLBW children without overt disability: Relation to gender, neonatal risk factors, and end stage MRI findings2008Ingår i: Early Human Development, ISSN 0378-3782, E-ISSN 1872-6232, Vol. 84, nr 5, s. 343-349Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: Very low birthweight (VLBW; birth weight ≤ 1500 g) children run a greater risk than controls of developing neurosensory disabilities, but also minor neurological disturbances.

    Aims: To assess neurological status from the neonatal period up to fifteen years of age in VLBW children without overt neurological disability in relation to gender, neonatal risk factors, and Magnetic Resonance Imaging (MRI) findings of the brain.

    Study design: A population based follow-up study of VLBW children and their controls.

    Subjects: Eighty VLBW children without overt disability, in a cohort of 86 surviving VLBW children, were enrolled in a follow-up study at 40 weeks gestational age and at 4, 9, and 15 years of age. 56 VLBW children were examined with cerebral MRI at 15 years of age.

    Outcome measures: Neurological test scores. MRI findings, principally white matter damage (WMD).

    Results: VLBW children were inferior in neurological assessments in comparison with controls at 40 weeks gestational age and 4 and 15 years of age. VLBW girls did not differ from their controls at 9 and 15 years. Fourteen of 56 (25%) VLBW children had abnormal MRI findings and 13 were evaluated as mild WMD. Children with WMD did not differ in neurological outcome from those without WMD at any examination. Mechanical ventilation and/or intraventricular haemorrhage (IVH) during the neonatal period were significantly related to less a favourable outcome at follow-up examinations.

    Conclusion: A cohort of VLBW children without overt neurological disability had a poorer neurological condition up to adolescence in comparison with controls. A quarter of the VLBW children had mild WMD but without relation to the neurological functions. Mechanical ventilation and IVH were related to poorer neurological outcome.

  • 176.
    Gäddlin, Per-Olof
    et al.
    Linköpings universitet, Institutionen för molekylär och klinisk medicin.
    Leijon, Ingemar
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Mård, Selina
    Linköpings universitet, Institutionen för beteendevetenskap.
    Samuelsson, Stefan
    Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutionen för beteendevetenskap, Avdelningen för pedagogik i utbildning och skola, PiUS.
    Very low birthweight children at 9 and 12 years: School performance, behaviour and self-image2003Ingår i: Journal of Maternal-Fetal and Neonatal Medicine, Vol. 14Artikel i tidskrift (Refereegranskat)
  • 177.
    Hagopian, William
    et al.
    Pacific Northwest Diabet Research Institute, WA USA .
    Ferry, Robert J Jr.
    Le Bonheur Childrens Hospital, TN USA .
    Sherry, Nicole
    Massachusetts Gen Hospital, MA USA .
    Carlin, David
    MacroGenics, MD USA .
    Bonvini, Ezio
    MacroGenics, MD USA .
    Johnson, Syd
    MacroGenics, MD USA .
    Stein, Kathryn E.
    MacroGenics, MD USA .
    Koenig, Scott
    MacroGenics, MD USA .
    Daifotis, Anastasia G.
    MacroGenics, MD USA .
    Herold, Kevan C.
    Yale University, CT USA .
    Ludvigsson, Johnny
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Teplizumab Preserves C-Peptide in Recent-Onset Type 1 Diabetes2013Ingår i: Diabetes, ISSN 0012-1797, E-ISSN 1939-327X, Vol. 62, nr 11, s. 3901-3908Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Protege was a phase 3, randomized, double-blind, parallel, placebo-controlled 2-year study of three intravenous teplizumab dosing regimens, administered daily for 14 days at baseline and again after 26 weeks, in new-onset type 1 diabetes. We sought to determine efficacy and safety of teplizumab immunotherapy at 2 years and to identify characteristics associated with therapeutic response. Of 516 randomized patients, 513 were treated, and 462 completed 2 years of follow-up. Teplizumab (14-day full-dose) reduced the loss of C-peptide mean area under the curve (AUC), a prespecified secondary end point, at 2 years versus placebo. In analyses of prespecified and post hoc subsets at entry, U.S. residents, patients with C-peptide mean AUC andgt;0.2 nmol/L, those randomized 6 weeks after diagnosis, HbA(1c) andlt;7.5% (58 mmol/mol), insulin use andlt;0.4 units/kg/day, and 8-17 years of age each had greater teplizumab-associated C-peptide preservation than their counterparts. Exogenous insulin needs tended to be reduced versus placebo. Antidrug antibodies developed in some patients, without apparent change in drug efficacy. No new safety or tolerability issues were observed during year 2. In summary, anti-CD3 therapy reduced C-peptide loss 2 years after diagnosis using a tolerable dose.

  • 178.
    Hanberger, Lena
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Hälsouniversitetet.
    Akesson, K.
    County Hospital Ryhov, Sweden Jonköping University, Sweden Jonköping University, Sweden .
    Samuelsson, Ulf
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Glycated haemoglobin variations in paediatric type 1 diabetes: the impact of season, gender and age2014Ingår i: Acta Paediatrica, ISSN 0803-5253, E-ISSN 1651-2227, Vol. 103, nr 4, s. 398-403Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    AimTo study whether monthly variations in type 1 diabetes incidence are related to monthly glycated haemoglobin (HbA1c) levels at diagnosis and if high HbA1c at diagnosis is related to certain clinical variables at diagnosis and during the clinical course of the disease. MethodsData from 4430 boys and 3590 girls registered in the Swedish paediatric diabetes quality registry, Swedish paediatric diabetes quality registry, from 2000 to 2010 were analysed. ResultsMonth of onset varied (pless than0.001), with 53% diagnosed during September to February, and mean HbA1c at diagnosis was highest in May (10.9%, 96mmol/mol) and lowest in (October 9.4%, 88mmol/mol) (pless than0.001). Girls showed higher HbA1c at onset than boys (pless than0.001). More than half (53%) with an annual mean HbA1c of greater than9.3% (78mmol/mol) and 4% of those with an annual mean of less than7.4% (57mmol/mol) in 2007 had greater than9.3% (78mmol/mol) in 2010. ConclusionPatients with high HbA1c levels during a certain period have the same high levels several years later. This group, perhaps including those with high HbA1c level at diagnosis, may need more intensive care, including extra support from the diabetes teams and other forms of medical treatment.

  • 179.
    Hanberger, Lena
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för omvårdnad. Linköpings universitet, Hälsouniversitetet.
    Birkebaek, Niels
    Department of Paediatrics, Aarhus, Aarhus University Hospital, Skejby, Denmark.
    Bjarnason, Ragnar
    Children’s Medical Center, Landspítali University Hospital and Faculty of Medicine, University of Iceland, Reykjavík, Iceland.
    Drivvoll, Ann Kristin
    Woman and Children’s Division, Department of Paediatric Medicine, Norwegian Childhood Diabetes Registry, Oslo University Hospital, Oslo, Norway.
    Johansen, Anders
    Department of Paediatrics, Herlev University Hospital, Herlev, Denmark.
    Skrivarhaug, Torild
    Woman and Children’s Division, Department of Paediatric Medicine, Norwegian Childhood Diabetes Registry, Oslo University Hospital, Oslo, Norway / Woman and Children’s Division, Department of Paediatric Medicine, Oslo University Hospital, Oslo, Norway.
    Thorsson, Arni V
    Children’s Medical Center, Landspítali University Hospital and Faculty of Medicine, University of Iceland, Reykjavík, Iceland.
    Samuelsson, Ulf
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Childhood diabetes in the nordic countries: a comparison of quality registries.2014Ingår i: Journal of diabetes science and technology, ISSN 1932-2968, Vol. 8, nr 4, s. 738-44Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In 2008 a Nordic collaboration was established between the quality registries in Denmark, Iceland, Norway, and Sweden to improve quality of care for children with diabetes. This study aimed to describe those registries and confirm that the registry variables are comparable. Selected variables were used to demonstrate outcome measurements. The organization of the registries and methodology are described. Cross-sectional data for patients between birth and 14.9 years with type 1 diabetes mellitus in 2009 (n = 6523) from 89 centers were analyzed. Variables were age, gender, and diabetic ketoacidosis at onset, together with age, gender, HbA1c, insulin regimen, and severe hypoglycemia at follow-up in 2009. All 4 registries use a standardized registration at the onset of diabetes and at follow-up, conducted at the local pediatric diabetes centers. Methods for measuring HbA1c varied as did methods of registration for factors such as hypoglycemia. No differences were found between the outcomes of the clinical variables at onset. Significant variations were found at follow-up for mean HbA1c, the proportion of children with HbA1c < 57 mmol/mol (NGSP/DCCT 7.4%), (range 15-31%), the proportion with insulin pumps (range 34-55%), and the numbers with severe hypoglycemia (range 5.6-8.3/100 patient years). In this large unselected population from 4 Nordic countries, a high proportion did not reach their treatment target, indicating a need to improve the quality of pediatric diabetes care. International collaboration is needed to develop and harmonize quality indicators and offers possibilities to study large geographic populations, identify problems, and share knowledge.

  • 180.
    Hanberger, Lena
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet.
    Ludvigsson, Johnny
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Nordfeldt, Sam
    Linköpings universitet, Institutionen för medicin och hälsa, Medicinsk teknologiutvärdering. Linköpings universitet, Hälsouniversitetet.
    Health-related quality of life in intensively treated young patients with type 1 diabetes2009Ingår i: Pediatric Diabetes, ISSN 1399-543X, Vol. 10, nr 6, s. 374-381Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This study aimed to analyse the impact of the disease and treatment on health-related quality of life (HRQOL) in intensively treated young patients with diabetes. Our main hypothesis was that metabolic control, gender, age and socio-economic status predict HRQOL. All children and adolescents (n = 400, 191 girls) and parents in a geographic population of two paediatric clinics in Sweden [mean age 13.2 yr, ±SD 3.9, range 2.6-19.6; mean duration of diabetes 5.1 yr, ± SD 3.8, range 0.3-17.6; yr mean haemoglobin A1c (HbA1c) 7.1%, ±SD 1.2, range 4.0-10.7] received the DISABKIDS questionnaire, a validated combined chronic generic and condition-specific HRQOL measure for children, and the EuroQol-5D questionnaire. Parents as proxy perceived HRQOL lower than their children. Adolescents with separated parents reported lower generic HRQOL (GeHRQOL) and diabetes-specific HRQOL (DiHRQOL) than those with parents living together (p = 0.027 and p = 0.043, respectively). Adolescent girls reported lower GeHRQOL (p = 0.041) and DiHRQOL (p = 0.001) than boys did. Parents of girls less than8 yr of age reported lower DiHRQOL (p = 0.047) than did parents of boys less than8 yr. In addition, a difference was found in HRQOL between centres. Intensive insulin therapy did not seem to lower HRQOL. If anything, along with better metabolic control, it increased HRQOL. A correlation between DiHRQOL and HbA1c was found in adolescents (r = -0.16, p=0.046) and boys aged 8-12 yr (r = -0.28, p = 0.045). We conclude that the diabetes team can influence the HRQOL of the patients as there was a centre difference and because HRQOL is influenced by glycaemic control and insulin regimen. Girls seem to need extra support.

  • 181.
    Hanberger, Lena
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Ludvigsson, Johnny
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Nordfeldt, Sam
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för hälsa och samhälle, Centrum för utvärdering av medicinsk teknologi. Östergötlands Läns Landsting, Närsjukvården i centrala Östergötland, Barn- och ungdomspsykiatriska kliniken.
    Quality of care from the patient's perspective in pediatric diabetes care2006Ingår i: Diabetes Research and Clinical Practice, ISSN 0168-8227, E-ISSN 1872-8227, Vol. 72, nr 2, s. 197-205Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This study aimed to investigate perceived quality of diabetes care. A geographic population of 400 type 1 diabetes patients <20 years received the validated questionnaire quality of care from the patient's perspective (QPP) including additional context-specific items. Primary endpoints were perceived reality of care by specific items and factors and their subjective importance, respectively. Relations to severe hypoglycemia, HbA1c, insulin dose, BMI, age, duration and sociodemographic factors were also studied. On average, a high perceived quality of care was reported from both parents and adolescents (response rate 285/400 (71%) and 155/237 (65%), respectively), highest regarding possibility to talk to nurse/doctor in privacy, respect, general atmosphere, continuity in patient-physician relationship and patient participation. Lower perceived reality with higher subjective importance was seen for information about results from medical examinations and treatments and information about self-care, access to care and waiting time. While parents' and their adolescents' mean ratings correlated well for reality r = 0.95 (p < 0.001) and importance r = 0.53 (p = 0.023), parents rated reality level higher (p = 0.012) and importance even higher (p < 0.001). The QPP instrument used with additional context-specific items can provide specific information to be used in quality of care development. In our setting, improvements are needed regarding patient information, access to care and waiting time. © 2005 Elsevier Ireland Ltd. All rights reserved.

  • 182.
    Hanberger, Lena
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet.
    Ludvigsson, Johnny
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Nordfeldt, Sam
    Linköpings universitet, Institutionen för medicin och hälsa, Medicinsk teknologiutvärdering. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Närsjukvården i centrala Östergötland, Barn- och ungdomspsykiatriska kliniken.
    Use of a Web 2.0 Portal to Improve Education and Communication in Young Patients With Families: Randomized Controlled Trial2013Ingår i: Journal of Medical Internet Research, ISSN 1438-8871, E-ISSN 1438-8871, Vol. 15, nr 8Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: Diabetes requires extensive self-care and comprehensive knowledge, making patient education central to diabetes self-management. Web 2.0 systems have great potential to enhance health information and open new ways for patients and practitioners to communicate. less thanbrgreater than less thanbrgreater thanObjective: To develop a Web portal designed to facilitate self-management, including diabetes-related information and social networking functions, and to study its use and effects in pediatric patients with diabetes. less thanbrgreater than less thanbrgreater thanMethods: A Web 2.0 portal was developed in collaboration with patients, parents, and practitioners. It offered communication with local practitioners, interaction with peers, and access to relevant information and services. Children and adolescents with diabetes in a geographic population of two pediatric clinics in Sweden were randomized to a group receiving passwords for access to the portal or a control group with no access (n=230) for 1 year. All subjects had access during a second study year. Users activity was logged by site and page visits. Health-related quality of life (HRQOL), empowerment (DES), and quality of information (QPP) questionnaires were given at baseline and after 1 and 2 study years. Clinical data came from the Swedish pediatric diabetes quality registry SWEDIABKIDS. less thanbrgreater than less thanbrgreater thanResults: There was a continuous flow of site visits, decreasing in summer and Christmas periods. In 119/233 families (51%), someone visited the portal the first study year and 169/484 (35%) the second study year. The outcome variables did not differ between intervention and control group. No adverse treatment or self-care effects were identified. A higher proportion of mothers compared to fathers visited once or more the first year (Pandlt;.001) and the second year (Pandlt;.001). The patients who had someone in the family visiting the portal 5 times or more, had shorter diabetes duration (P=.006), were younger (P=.008), had lower HbA1c after 1 year of access (P=.010), and were more often girls (Pandlt;.001). Peer interaction seems to be a valued aspect. less thanbrgreater than less thanbrgreater thanConclusions: The Web 2.0 portal may be useful as a complement to traditional care for this target group. Widespread use of a portal would need integration in routine care and promotion by diabetes team members.

  • 183.
    Hanberger, Lena
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik.
    Samuelsson, Ulf
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Berterö, Carina
    Linköpings universitet, Institutionen för medicin och hälsa, Omvårdnad. Linköpings universitet, Hälsouniversitetet.
    Ludvigsson, Johnny
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    The influence of process, structure and policy on Haemoglobin A1c levels in treatment of children and adolescents with type 1 diabetes2012Ingår i: Diabetes Research and Clinical Practice, ISSN 0168-8227, E-ISSN 1872-8227, Vol. 96, nr 3, s. 331-338Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Objective: We aimed to identify factors for improvements of mean A1C at centres treating children and adolescents with diabetes.

    research Design and methods: Through data from the Swedish paediatric diabetes quality registry, SWEDIABKIDS, five centres with the lowest mean A1C (Low group), five with the highest (High group), and five with the largest decrease in centre mean A1C (Decrease group) were identified. The diabetes team members completed a questionnaire, response rate 85%, (109/128) and reported team structure and process. Open-ended questions regarding messages to patients about important diabetes matters were analysed with summative content analysis.

    Results: Compared to the High group, the Low and Decrease groups showed shorter professional experience and lower proportion of special diabetes-educated team members, and higher compliance with guidelines. Trends for higher mean insulin dose, larger centre size and larger team size were found. The content analysis indicated that the Low and Decrease groups gave a clear message and had lower A1C target value. The team members in these groups were engaged, had a positive attitude and a perception of a well-functioning team. The High group gave a vague message, needed more frames and had a perception of lack of cooperation in the team.

    Conclusions: The team members' approach seems to affect metabolic control in children and adolescents. The team members need to be aware of their approach and how it affects patients and parents, and also of the importance of the possibility of using resources and competence within the team.

  • 184.
    Hanberger, Lena
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik.
    Samuelsson, Ulf
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Lindblad, Bengt
    Univ Gothenburg, Sahlgrenska Acad, Gothenburg, Sweden.
    Ludvigsson, Johnny
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    AlC in children and adolescents with diabetes in relation to certain clinical parameters - The Swedish Childhood Diabetes Registry SWEDIABKIDS2008Ingår i: Diabetes Care, ISSN 0149-5992, E-ISSN 1935-5548, Vol. 31, nr 5, s. 927-929Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    OBJECTIVE - We explored the relationship between AlC and insulin regimen, duration of diabetes, age, sex, and BMI as well as the differences between clinical mean AlC levels at pediatric diabetes clinics in Sweden. RESEARCH DESIGN AND METHODS - Data from 18,651 clinical outpatient visits (1,033 girls and 1,147 boys) at 20 pediatric clinics during 2001 and 2002 registered in the Swedish Childhood Diabetes Registry SWEDIABKIDS, a national quality registry, were analyzed. RESULTS - AlC was < 7.0% (target value similar to 8% per Diabetes Control and Complications Trial/National Glycohemoglobin Standardization Program standards) at 35% of the visits. Girls had significantly higher mean AlC than boys during adolescence. High mean AlC was correlated with high mean insulin dose, long duration of diabetes, and older age. Mean AlC varied between clinics (6.8-8.2%). Differences between centers could not be explained by differences in diabetes duration, age, BMI, or insulin dose. CONCLUSIONS - Adolescents with a high insulin dose and a long duration of diabetes, especially girls, need to be focused on, Differences in mean values between centers remained inexplicable and require further investigation.

  • 185.
    Hedbrant, Johan
    et al.
    Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, Mekanisk värmeteori och strömningslära. Linköpings universitet, Tekniska högskolan.
    Nordfeldt, Sam
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för hälso- och sjukvårdsanalys. Linköpings universitet, Hälsouniversitetet.
    Nordfeldt, Sam
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Pediatrik.
    Ludvigsson, Johnny
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Ludvigsson, Johnny
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    The Särimner Diabetes Simulator - A Look in the Rear View Mirror2007Ingår i: Diabetes Technology & Therapeutics, ISSN 1520-9156, E-ISSN 1557-8593, Vol. 9, nr 1, s. 10-16Artikel i tidskrift (Refereegranskat)
    Abstract [en]

      

  • 186.
    Hedin Skogman, Barbro
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Neuroborreliosis in childhood: Clinical, immunological and diagnostic aspects2008Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [sv]

    Borrelia-infektion hos barn och vuxna är den vanligaste fästingburna infektionen i Sverige och orsakas av en bakterie som heter Borrelia burgdorferi. Den sprids till människa via fästingbett och kan orsaka besvär från hud, leder, hjärtmuskel och nervsystem. När nervsystemet är infekterat kallas det Neuroborrelios.

    Denna avhandling handlar om Neuroborrelios hos barn i syd-östra Sverige, ett område med hög Borrelia-förekomst. Jag har studerat symtom, laborativa provsvar och tillfrisknande hos 250 barn med misstänkt Neuroborrelios under åren 1998-2005 och jämfört med friska barn. Dessutom har jag tittat närmare på vissa signalsubstanser inom immunförsvaret i blod och ryggvätska och vilken roll signalsubstanserna spelar för förlopp och utläkning av infektionen. Avhandlingen innehåller också en utvärdering av fyra nya diagnostiska test vid misstänkt Neuroborrelios hos barn.

    Det visar sig att mindre än hälften (41%) av barnen med misstänkt Neuroborrelios får diagnosen säkerställd med det befintliga Borrelia-testet (baserat på ett protein som kallas flagellin) som används rutinmässigt. Dock förblir diagnosen oklar för många barn (59%). De fyra nya Borrelia-testen (baserade på protein som kallas DbpA, BBK32, OspC och IR6) visar sig fungera bra och om man kombinerar dem med befintligt Borrelia-test, kan man säkerställa Neuroborrelios hos 82% av barnen med misstänkt infektion. Jag hoppas att dessa nya Borrelia-test i framtiden kan leda till förbättrad diagnostik hos barn som utreds för misstänkt Neuroborrelios.

    Immunförsvarets signalsubstanser, som analyserades i ryggvätska och blod, visade sig ha en viss profil hos barn med Neuroborrelios jämfört med barn utan Borrelia-infektion, men även jämfört med vuxna med Neuroborrelios. De immunologiska T cellerna producerade två olika sorters signalsubstanser, som kallas ”Interferon-γ” och ”Interleukin-4”. Denna immunologiska profil verkar fördelaktig och kan möjligen bidra till den i allmänhet goda utläkning av Neuroborrelios som man ser hos barn jämfört med vuxna.

    De vanligaste symtomen vid en Borrelia-infektion i nervsystemet är huvudvärk, trötthet, dålig aptit, feber och ont i nacken. Ansiktsförlamning är det vanligaste specifika neurologiska symtomet. Antibiotikabehandling ges till 69% av barnen och vid en 6 månaders uppföljning rapporterar patienterna god utläkning av de olika symtomen. Inget barn hade återkommande eller allvarliga neurologiska symtom vid uppföljningen. Däremot, barn med ansiktsförlamning visade sig få kvarstående besvär i viss utsträckning. När de undersöktes 2 år efter sin ansiktsförlamning förekom mild till måttlig kvarstående förlamning i 22% av fallen. Patienterna uppgav besvär av ökat tårflöde, sluddrigt tal, svårigheter med att stänga ögat och dessutom rapporterade många patienter att snedheten i ansiktet var kosmetiskt störande.

    Inga specifika symtom, laborativa prov, immunologiska signalsubstanser eller diagnostiska test visade sig vara kopplade till ökad risk för kvarstående besvär efter Neuroborrelios i allmänhet och inte eller hos patienter med ansiktsförlamning.

    En checklista har utarbetats med olika symtom som är typiska för barn med Neuroborrelios. Den föreslås kunna användas som beslutsunderlag för start av tidig antibiotikabehandling, redan innan svar på Borrelia-testen finns tillgängliga.

    Delarbeten
    1. Acute facial palsy in children - a 2-year follow-up study with focus on Lyme neuroborreliosis
    Öppna denna publikation i ny flik eller fönster >>Acute facial palsy in children - a 2-year follow-up study with focus on Lyme neuroborreliosis
    2003 (Engelska)Ingår i: International Journal of Pediatric Otorhinolaryngology, ISSN 0165-5876, Vol. 67, nr 6, s. 597-602Artikel i tidskrift (Refereegranskat) Published
    Abstract [en]

    Objective: Acute facial palsy in children is believed to be a rather benign neurological condition. Follow-up-studies are sparse, especially including a thorough otoneurological re-examination. The aim of this study was to examine children with a history of facial palsy in order to register the incidence of complete recovery and the severity and nature of sequelae. We also wanted to investigate whether there was a correlation between sequelae and Lyme Borreliosis, treatment or other health problems.

    Methods: Twenty-seven children with a history of facial palsy were included. A re-examination was performed by an Ear-Nose-Throat (ENT) specialist 1–2.9 years (median 2) after the acute facial palsy. The otoneurological examination included grading the three branches of the facial nerve with the House-Brackman score, otomicroscopy and investigation with Frenzel glasses. A paediatrician interviewed the families. Medical files were analysed.

    Result: The incidence of complete recovery was 78% at the 2-year follow-up. In six out of 27 children (22%), the facial nerve function was mildly or moderately impaired. Four children reported problems with tear secretion and pronunciation. There was no correlation between sequelae after the facial palsy and gender, age, related symptoms, Lyme neuroborreliosis (NB), treatment, other health problems or performance.

    Conclusion: One fifth of children with an acute facial palsy get a permanent dysfunction of the facial nerve. Other neurological symptoms or health problems do not accompany the sequelae of the facial palsy. Lyme NB or treatment seems to have no correlation to clinical outcome. Factors of importance for complete recovery after an acute facial palsy are still not known.

    Nyckelord
    Facial palsy, Sequelae, Lyme borreliosis, Children
    Nationell ämneskategori
    Medicin och hälsovetenskap
    Identifikatorer
    urn:nbn:se:liu:diva-13160 (URN)10.1016/S0165-5876(03)00061-2 (DOI)
    Tillgänglig från: 2008-05-07 Skapad: 2008-05-07 Senast uppdaterad: 2009-08-18
    2. Up-regulation of Borrelia-specific IL-4 and IFN-gamma secreting cells in cerebrospinal fluid from children with Lyme neuroborreliosis
    Öppna denna publikation i ny flik eller fönster >>Up-regulation of Borrelia-specific IL-4 and IFN-gamma secreting cells in cerebrospinal fluid from children with Lyme neuroborreliosis
    Visa övriga...
    2005 (Engelska)Ingår i: International Immunology, ISSN 0953-8178, Vol. 17, nr 10, s. 1283-1291Artikel i tidskrift (Refereegranskat) Published
    Abstract [en]

    The clinical course and outcome of several infectious diseases are dependent on the type of immune response elicited against the pathogen. In adults with neuroborreliosis (NB), a type 1 response with high production of Borrelia-specific IFN-, but no IL-4, has been reported. Since children have a more benign course of NB than adults, we wanted to investigate type 1 and type 2 responses in children with NB. Cerebrospinal fluid (CSF) and blood were collected from children during the acute stage of ‘confirmed NB’ (n = 34), ‘possible NB’ (n = 30) and ‘non-NB’ (n = 10). The number of Borrelia-specific IL-4- and IFN--secreting cells was measured by enzyme-linked immunospot assay. Borrelia-specific secretion of both IL-4 and IFN- was increased in CSF in confirmed (P < 0.05) and possible (P < 0.01) NB, when compared with non-NB controls. Furthermore, children with NB had significantly higher Borrelia-specific IL-4 secretion in CSF than an adult reference material with NB (P < 0.05). There were no differences in cytokine secretion in relation to onset or recovery of neurological symptoms. Since IL-4 is known to down-regulate the pro-inflammatory and possibly harmful effects of prolonged IFN- responses, the prominent IL-4 response observed in the central nervous system compartment might contribute to the more benign disease course seen in children with Lyme NB.

    Nyckelord
    cytokines, IL-4, IFN-{gamma}, immune response, ELISPOT
    Nationell ämneskategori
    Medicin och hälsovetenskap
    Identifikatorer
    urn:nbn:se:liu:diva-13161 (URN)10.1093/intimm/dxh304 (DOI)
    Tillgänglig från: 2008-05-07 Skapad: 2008-05-07 Senast uppdaterad: 2013-08-29
    3. Improved Laboratory Diagnostics of Lyme Neuroborreliosis in Children
    Öppna denna publikation i ny flik eller fönster >>Improved Laboratory Diagnostics of Lyme Neuroborreliosis in Children
    Visa övriga...
    2008 (Engelska)Ingår i: The Pediatric Infectious Disease Journal, ISSN 0891-3668, E-ISSN 1532-0987, Vol. 27, nr 7, s. 605-612Artikel i tidskrift (Refereegranskat) Published
    Abstract [en]

    Background: Laboratory diagnostics in Lyme neuroborreliosis need improvement. We hereby investigate 4 new recombinant or peptide Borrelia antigens in cerebrospinal fluid in children with neuroborreliosis to evaluate their performance as diagnostic antigens.

    Methods: An enzyme-linked immunosorbent assay was used to detect IgG antibodies to recombinant decorin binding protein A (DbpA), BBK32, outer surface protein C (OspC), and the invariable region 6 peptide (IR6). The recombinant antigens originated from 3 pathogenic subspecies; Borrelia afzelii, Borrelia garinii, and Borrelia burgdorferi sensu stricto. Cerebrospinal fluid and serum from children with clinical features indicative for neuroborreliosis (n = 57) were analyzed. Classification of patients was based on clinical symptoms and laboratory findings. Controls were children with other neurologic diseases (n = 20) and adult patients with no proven infection (n = 16).

    Results: Sensitivity for DbpA was 82%, for BBK32 70%, for OspC 58% and for IR6 70%. Specificities were 94%, 100%, 97%, and 97%, respectively. No single antigen was superior. When new antigens were combined in a panel, sensitivity was 80% and specificity 100%. The reference flagella antigen showed a sensitivity of 60% and a specificity of 100%. Over all, the B. garinii related antigens dominated.

    Conclusions: Recombinant DbpA and BBK32 as well as the peptide antigen IR6 perform well in laboratory diagnostics of neuroborreliosis in children. New antigens seem to improve diagnostic performance when compared with the routine flagella antigen. If different antigens are combined in a panel to cover the antigenic diversity, sensitivity improves further and a specificity of 100% can be achieve.

    Nationell ämneskategori
    Medicin och hälsovetenskap
    Identifikatorer
    urn:nbn:se:liu:diva-13162 (URN)10.1097/INF.0b013e31816a1e29 (DOI)
    Tillgänglig från: 2008-05-07 Skapad: 2008-05-07 Senast uppdaterad: 2017-12-13
    4. Lyme Neuroborreliosis in Children - a Prospective Study of Clinical features, Prognosis, and Outcome
    Öppna denna publikation i ny flik eller fönster >>Lyme Neuroborreliosis in Children - a Prospective Study of Clinical features, Prognosis, and Outcome
    Visa övriga...
    2008 (Engelska)Ingår i: The Pediatric Infectious Disease Journal, ISSN 0891-3668, E-ISSN 1532-0987, Vol. 27, nr 12, s. 1089-1094Artikel i tidskrift (Refereegranskat) Published
    Abstract [en]

     

    Background: Evaluation of children with clinically suspected neuroborreliosis (NB) is difficult. With a prospective study design we wanted to characterize children with signs and symptoms indicative for NB, investigate clinical outcome and, if possible, identify factors of importance for recovery.

    Material/Methods: Children being evaluated for NB (n = 177) in Southeast Sweden were categorized into 3 groups: "confirmed neuroborreliosis" (41%) with Borrelia antibodies in the cerebrospinal fluid, "possible neuroborreliosis" (26%) with pleocytosis but 110 Borrelia antibodies in the cerebrospinal fluid, and "not determined" (33%) with no pleocytosis and no Borrelia antibodies in the cerebrospinal fluid, Antibiotic treatment was given to 69% of children. Patients were followed during 6 months and compared with a matched control group (n = 174).

    Results: Clinical recovery at the 6-month follow-up (n = 177) was generally good and no patient was found to have recurrent or progressive neurologic symptoms. However, persistent facial nerve palsy caused dysfunctional and cosmetic problems in 11% of patients. Persistent nonspecific symptoms, such as headache and fatigue, were not more frequently reported in patients than in controls. Influence on daily life was reported to the same extent in patients and controls. Consequently, persistent headache and fatigue at follow-up should not be considered as attributable to NB. No prognostic factors could be identified.

    Conclusions: Clinical recovery was satisfactory in children being evaluated for NB although persistent symptoms from facial nerve palsy occurred. Persistent nonspecific symptoms, such as headache and fatigue, were not more frequently reported in patients than in controls.

    Nyckelord
    Lyme disease, neuroborreliosis, children, clinical outcome, prognostic factors, prospective
    Nationell ämneskategori
    Medicin och hälsovetenskap
    Identifikatorer
    urn:nbn:se:liu:diva-13163 (URN)10.1097/INF.0b013e31817fd423 (DOI)
    Tillgänglig från: 2008-05-07 Skapad: 2008-05-07 Senast uppdaterad: 2017-12-13
  • 187.
    Hedin-Skogman, Barbro
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Croner, Stefan
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Nordwall, Maria
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Norrköping.
    Eknefelt, Mattias
    Pediatric Clinic, Jönköping.
    Ernerudh, Jan
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Klinisk immunologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Laboratoriemedicinskt centrum, Klinisk immunologi och transfusionsmedicin.
    Forsberg, Pia
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Infektionsmedicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Medicincentrum, Infektionskliniken i Östergötland.
    Lyme Neuroborreliosis in Children - a Prospective Study of Clinical features, Prognosis, and Outcome2008Ingår i: The Pediatric Infectious Disease Journal, ISSN 0891-3668, E-ISSN 1532-0987, Vol. 27, nr 12, s. 1089-1094Artikel i tidskrift (Refereegranskat)
    Abstract [en]

     

    Background: Evaluation of children with clinically suspected neuroborreliosis (NB) is difficult. With a prospective study design we wanted to characterize children with signs and symptoms indicative for NB, investigate clinical outcome and, if possible, identify factors of importance for recovery.

    Material/Methods: Children being evaluated for NB (n = 177) in Southeast Sweden were categorized into 3 groups: "confirmed neuroborreliosis" (41%) with Borrelia antibodies in the cerebrospinal fluid, "possible neuroborreliosis" (26%) with pleocytosis but 110 Borrelia antibodies in the cerebrospinal fluid, and "not determined" (33%) with no pleocytosis and no Borrelia antibodies in the cerebrospinal fluid, Antibiotic treatment was given to 69% of children. Patients were followed during 6 months and compared with a matched control group (n = 174).

    Results: Clinical recovery at the 6-month follow-up (n = 177) was generally good and no patient was found to have recurrent or progressive neurologic symptoms. However, persistent facial nerve palsy caused dysfunctional and cosmetic problems in 11% of patients. Persistent nonspecific symptoms, such as headache and fatigue, were not more frequently reported in patients than in controls. Influence on daily life was reported to the same extent in patients and controls. Consequently, persistent headache and fatigue at follow-up should not be considered as attributable to NB. No prognostic factors could be identified.

    Conclusions: Clinical recovery was satisfactory in children being evaluated for NB although persistent symptoms from facial nerve palsy occurred. Persistent nonspecific symptoms, such as headache and fatigue, were not more frequently reported in patients than in controls.

  • 188.
    Hedin-Skogman, Barbro
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Croner, Stefan
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Ödkvist, Lars
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Oto-Rhino-Laryngologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Öronkliniken US.
    Acute facial palsy in children - a 2-year follow-up study with focus on Lyme neuroborreliosis2003Ingår i: International Journal of Pediatric Otorhinolaryngology, ISSN 0165-5876, Vol. 67, nr 6, s. 597-602Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Objective: Acute facial palsy in children is believed to be a rather benign neurological condition. Follow-up-studies are sparse, especially including a thorough otoneurological re-examination. The aim of this study was to examine children with a history of facial palsy in order to register the incidence of complete recovery and the severity and nature of sequelae. We also wanted to investigate whether there was a correlation between sequelae and Lyme Borreliosis, treatment or other health problems.

    Methods: Twenty-seven children with a history of facial palsy were included. A re-examination was performed by an Ear-Nose-Throat (ENT) specialist 1–2.9 years (median 2) after the acute facial palsy. The otoneurological examination included grading the three branches of the facial nerve with the House-Brackman score, otomicroscopy and investigation with Frenzel glasses. A paediatrician interviewed the families. Medical files were analysed.

    Result: The incidence of complete recovery was 78% at the 2-year follow-up. In six out of 27 children (22%), the facial nerve function was mildly or moderately impaired. Four children reported problems with tear secretion and pronunciation. There was no correlation between sequelae after the facial palsy and gender, age, related symptoms, Lyme neuroborreliosis (NB), treatment, other health problems or performance.

    Conclusion: One fifth of children with an acute facial palsy get a permanent dysfunction of the facial nerve. Other neurological symptoms or health problems do not accompany the sequelae of the facial palsy. Lyme NB or treatment seems to have no correlation to clinical outcome. Factors of importance for complete recovery after an acute facial palsy are still not known.

  • 189.
    Hedin-Skogman, Barbro
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Nilsson, Lennart
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Croner, Stefan
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Forsberg, Pia
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Infektionsmedicin. Östergötlands Läns Landsting, Medicincentrum, Infektionskliniken i Östergötland.
    Kampanj för TBE vaccination av små barn oetisk och felaktig2004Ingår i: Läkartidningen, ISSN 0023-7205, E-ISSN 1652-7518, Vol. 101, nr 37, s. 2832-2832Artikel i tidskrift (Övrigt vetenskapligt)
  • 190.
    Hedin-Skogman, Barbro
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Nilsson, Lennart
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Croner, Stefan
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Forsberg, Pia
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Infektionsmedicin. Östergötlands Läns Landsting, Medicincentrum, Infektionskliniken i Östergötland.
    TBE-vaccinera barn över 7 år i endemiska områden, men låt de små barnen slippa.2004Ingår i: Läkartidningen, ISSN 0023-7205, E-ISSN 1652-7518, Vol. 101, nr 43, s. 3367-3367Artikel i tidskrift (Övrig (populärvetenskap, debatt, mm))
  • 191.
    Hedman Hjorth, Maria
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin. Linköpings universitet, Hälsouniversitetet.
    Faresjö, Maria
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet.
    Axelsson, Stina
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet.
    Ludvigsson, Johnny
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Casas, Rosaura
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet.
    Impaired CD4+ and CD8+ T cell phenotype and reduced chemokine secretion in recent-onset type 1 diabetic children2008Ingår i: Clinical and Experimental Immunology, ISSN 0009-9104, E-ISSN 1365-2249, Vol. 153, nr 3, s. 360-368Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Although the role of the T cell-mediated autoimmune reaction in type 1 diabetes (T1D) is conclusive, studies including data from human circulating CD4+ and CD8+ lymphocytes subsets during the disease onset and posterior development are scarce. Further, chemokines and chemokine receptors are key players in the migration of pathogenic T cells into the islets of NOD mice developing T1D, but few studies have investigated these markers in human T1D patients. We studied the expression of T helper 1 (Th1) and Th2 associated chemokine receptors, and the two isoforms of CD45 leukocyte antigen on CD4+ and CD8+ lymphocytes from T1D and healthy children, as well as the secretion of chemokines in cell supernatants in peripheral blood mononuclear cells. Our results showed increased expression of CCR7 and CD45RA, and reduced CD45RO on CD8+ cells among recent-onset T1D patients. The percentages of CD4+ cells expressing CXC chemokine receptor 3 (CXCR3), CXCR6 and CCR5, and the secretion of interferon-γ-induced protein-10, monocyte chemoattractant protein-1, macrophage inflammatory protein (MIP)-1a and MIP-1β was lower among diabetics. Low expression of Th1-associated receptors and secretion of chemokines, together with an increased amount of CD8+ cells expressing CD45RA and CCR7 in T1D patients therefore might represent suboptimal Th function in T1D, leading to impaired T cytotoxic (Tc) responses or alternatively reflect a selective recruitment of Th1 cells into the pancreas.

  • 192.
    Hedman Hjorth, Maria
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Pediatrik.
    Ludvigsson, Johnny
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Faresjö, Maria
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Pediatrik.
    Nicotinamide reduces high secretion of IFN-γ in high-risk relatives even though it does not prevent type 1 diabetes2006Ingår i: Journal of Interferon and Cytokine Research, ISSN 1079-9907, E-ISSN 1557-7465, Vol. 26, nr 4, s. 207-213Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Type 1 diabetes (T1D) is an autoimmune disease suggested to be of a T helper (Th)1-like origin. This study aimed to investigate the Th1-like and Th2-like profile in high-risk individuals during the prediabetic phase and the immunologic effect of treatment with nicotinamide. High-risk first-degree relatives of T1D patients participating in the European Nicotinamide Diabetes Intervention Trial (ENDIT) were treated with either nicotinamide or placebo. Peripheral blood mononuclear cells (PBMC) were obtained during the prediabetic phase and close to the onset of manifest T1D and from nondiabetic high-risk individuals. Using the sensitive enzyme-linked immunospot (ELISPOT) technique to distinguish Th1-like from Th2-like lymphocytes, secretion of interferon-γ (IFN-γ) and interleukin-4 (IL-4) was analyzed from PBMCs spontaneously and after in vitro stimulation with the diabetes-associated autoantigens, glutamic acid decarboxylase 65 (GAD65, protein and peptide, aa 247-279), recombinant tyrosine phosphatase (IA-2), and heat shock protein (HSP, aa 437-460). High-risk individuals showed high spontaneous as well as autoantigen-induced IFN-γ secretion. Secretion of IFN-γ and the IFN-γ/IL-4 ratio, induced by autoantigens, decreased in individuals developing T1D (p < 0.05), whereas nondiabetic individuals showed an increased IL-4 response (p < 0.05). Thus, a Th1-dominated cytokine profile observed in high-risk individuals inclined toward a diagnosis of diabetes. Nicotinamide caused decreased spontaneous (p = 0.05) and in vitro autoantigen-induced IFN-γ secretion (p < 0.05) and may play a role in immune regulation, even though it has not been shown to prevent T1D. © Mary Ann Liebert, Inc.

  • 193.
    Heintz, Emelie
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Utvärdering och hälsoekonomi. Linköpings universitet, Hälsouniversitetet.
    Brodtkorb, Thor-Henrik
    Linköpings universitet, Institutionen för medicin och hälsa, Utvärdering och hälsoekonomi. Linköpings universitet, Hälsouniversitetet.
    Nelson, Nina
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Levin, Lars-Åke
    Linköpings universitet, Institutionen för medicin och hälsa, Utvärdering och hälsoekonomi. Linköpings universitet, Hälsouniversitetet.
    The long-term cost-effectiveness of fetal monitoring during labour: a comparison of cardiotocography complemented with ST analysis versus cardiotocography alone2008Ingår i: British Journal of Obstetrics and Gynecology, ISSN 1470-0328, E-ISSN 1471-0528, Vol. 115, s. 1676-1687Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Objective: To assess the cost-effectivness of the use of cardiotocography (CTG) complemented with fetal electrocardiography and ST analysis compared with the use of CTG alone in term deliveries when a decision has been made to use fetal monitoring with a scarlp electrode. Design: A cost-effectiveness analysis based on a probabilistic decision model incorporating relevant strategies and lifelong outcomes. Setting: Maternity wards in Sweden. Population: Women with term fetuses after a clinical decision had been made to apply a fetal scalp electrode for internal CTG. Methods: A decision model was used to compare the costs and effects of two different treatment strategies. Baseline estimates were derived from the literature. Discounted costs and quality-adjusted life years (QALYs) were simulated over a lifetime horizon using a probabilistic model. Main outcome measures: QALYs, incremental costs, and cost per QALY gained expressed as incremental cost-effectiveness ratio (ICER). Results: The analysis found an incremental effect of 0.005 QALYs for ST analysis compared with CTG; the ST analysis strategy was also moreover associated with a -56 decrease in costs, thus dominating the CTG strategy. The probability that ST analysis is cost-effective in comparison with CTG is high, irrespective of the willingness-to-pay value for a QALY. Conclusions: Compared with CTG alone, ST analysis is cost-effective when used in term high-risk deliveries in which there is a need for internal fetal monitoring.

  • 194.
    Helgesson, G.
    et al.
    Karolinska Institutet.
    Hansson, M.G.
    Uppsala University.
    Ludvigsson, Johnny
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Swartling, Ulrica
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet.
    Practical matters, rather than lack of trust, motivate non-participation in a long-term cohort trial2009Ingår i: Pediatric Diabetes, ISSN 1399-543X, E-ISSN 1399-5448, Vol. 10, nr 6, s. 408-412Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Objective: The objective of this study was to investigate the importance of trust in researchers and other reasons that participating parents, former participants, and non-participants had for participating, or not participating, in a longitudinal cohort study on prediction and development of diabetes in children. Study design: A questionnaire addressing each of these groups, where respondents graded the importance of a set of listed reasons for participating/not participating, was randomly distributed to 2500 families in the All Babies in Southeast Sweden (ABIS) study region with children born between 1997 and 1999. Results: Lack of trust was not a central factor to a great majority of respondents who decided not to participate in the ABIS study or who later decided to opt out. Practical matters, like blood sampling and lack of time, were important factors to many more. Yet, four fifths of those who still participate in the ABIS study stated trust in the researchers to be an important factor to their initial decision to participate. Conclusions: Trust in researchers may be a necessary prerequisite in order for people to be willing to participate in research, but practical matters such as time that has to be spent or pain involved in collecting blood were more important factors than lack of trust in explaining opt out in relation to the ABIS study.

  • 195.
    Helgesson, Gert
    et al.
    Centre for Bioethics Uppsala Universitet.
    Ludvigsson, Johnny
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Swartling, Ulrica
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Pediatrik.
    How to handle informed consent in longitudinal studies when participants have a limited understanding of the study2005Ingår i: Journal of Medical Ethics, ISSN 0306-6800, E-ISSN 1473-4257, Vol. 31, nr 11, s. 670-673Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Empirical findings from a Swedish longitudinal screening study show that many of the research subjects had a limited understanding of the study. Nevertheless they were satisfied with the understanding they had and found it sufficient for informed continued participation. Were they wrong? In this paper, it is argued that the kind of understanding that is morally required depends partly on the kind of understanding on which the research subjects want to base their decisions, and partly on what kind of knowledge they lack. Researchers must ensure that the information process is not flawed and that participants receive the information they want. To achieve this, new information efforts may be needed. Researchers must also ensure that research subjects have knowledge about aspects of importance to them. Lack of understanding may, however, be the result of conscious choices by research subjects to disregard some of the information because it is not important to them. Such choices should normally be respected.

  • 196.
    Hjorth, Maria
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet.
    Axelsson, Stina
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet.
    Ludvigsson, Johnny
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Casas, Rosaura
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet.
    GAD-alum treatment induces GAD-specific FOXP3+ cells in type 1 diabetic children2009Ingår i: in DIABETOLOGIA, vol 52, 2009, Vol. 52, s. S193-S193Konferensbidrag (Refereegranskat)
    Abstract [en]

    n/a

  • 197.
    Hjorth, Maria
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet.
    Axelsson, Stina
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet.
    Ryden, Anna
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet.
    Faresjo, Maria
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet.
    Ludvigsson, Johnny
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Casas, Rosaura
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet.
    GAD-alum treatment induces GAD(65)-specific CD4(+)CD25(high)FOXP3(+) cells in type 1 diabetic patients2011Ingår i: CLINICAL IMMUNOLOGY, ISSN 1521-6616, Vol. 138, nr 1, s. 117-126Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Type 1 diabetes results from autoimmune destruction of insulin producing pancreatic beta-cells. We have shown that treatment with alum-formulated glutamic acid decarboxylase 65 (GAD-alum) preserved residual insulin secretion and induced antigen-specific responses in children with recent onset type 1 diabetes. The aim of this study was to further investigate the immunomodulatory effect of GAD-alum, focusing on CD4(+)CD25(high) cells and their association to cytokine secretion. Samples obtained 21 and 30 months after the initial injection of GAD-alum or placebo were included in the present study. GAD(65)-stimulation enhanced the percentage of CD4(+)CD25(high)FOXP3(+) cells, but reduced the percentage of CD4(+)CD25(+) cells, in samples from the GAD-alum treated group. Further, the GAD(65)-induced secretion of IL-5, -10, and -13 correlated with the expression of CD4(+)CD25(high)FOXP3(+) cells, but inversely with CD4(+)CD25(+) cells. These new data suggest that GAD-alum treatment induced GAD(65)-specific T cells with regulatory features.

  • 198.
    Hollman Frisman, Gunilla
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Omvårdnad. Linköpings universitet, Hälsouniversitetet.
    Eriksson, Carrie
    Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Pernehed, Sara
    Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Norrköping.
    Mörelius, Evalotte
    Linköpings universitet, Institutionen för samhälls- och välfärdsstudier, Hälsa, Aktivitet, Vård (HAV). Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    The experience of becoming a grandmother to a premature infant - A balancing act, influenced by ambivalent feeling2012Ingår i: Journal of Clinical Nursing, ISSN 0962-1067, E-ISSN 1365-2702, Vol. 21, nr 21-22, s. 3297-3305Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Aims and objectives.  To explore and describe the experience of becoming a grandmother to a premature infant.

    Background.  Becoming a grandmother involves a new perspective of life. Grandmothers of sick infants find themselves in a new situation with an adult child undergoing serious stress. Few studies have approached the grandmothers’ own experience of becoming a grandmother to a premature infant.

    Design.  A qualitative content analysis was used.

    Methods.  Eleven women, 52–66 years of age, who were grandmothers to premature infants born at a gestational age of 25–34 weeks, were interviewed during 2010. The infants were less than three years old at the time of the interview. The interviews were analysed with qualitative content analysis.

    Results.  The overall theme was a balancing act. Two categories of experience were identified: emotional experiences and a new role. ‘Emotional experiences’ was related to the first meeting, ambivalent feelings and confidence in care. ‘A new role’ was related to the subcategories supportive, a balance of involvement and limitations.

    Conclusions.  To become a grandmother to a premature infant was experienced as a balancing act influenced by ambivalent feelings of joy, fear and worry. The grandmothers sensed the seriousness of the situation at the same time as they wanted to be happy about the newborn infant. They worried about their adult child’s as well as the premature infant’s health but put their own needs aside. The grandmothers’ new role was a balance between being involved and supportive without disturbing.

    Relevance to clinical practice.  Neonatal intensive care unit staff should be open to grandmothers’ needs and acknowledge them as an obvious support for the immediate family of a premature infant. The grandmothers need guidance and information about what to expect concerning the infants health, the parents situation and their own role.

  • 199.
    Hollén, Elisabet
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Medicinsk mikrobiologi. Linköpings universitet, Hälsouniversitetet.
    Högberg, Lotta
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Norrköping.
    Stenhammar, Lars
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet.
    Fälth-Magnusson, Karin
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Magnusson, Karl-Eric
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Medicinsk mikrobiologi. Linköpings universitet, Hälsouniversitetet.
    Antibodies to oat prolamines (avenins) in children with coeliac disease2003Ingår i: Scandinavian Journal of Gastroenterology, ISSN 0036-5521, Vol. 38, nr 7, s. 742-746Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: The use of oats in a gluten-free diet for children with coeliac disease is presently under investigation. In this study we measured the content of antibodies to oat prolamines (avenin) in sera from coeliac children and reference children.

    Methods: Crude avenin was prepared by extraction with ethanol and salt-solution and used as antigen in a three-step ELISA. Sera from 81 children, including 34 children with verified coeliac disease, were analysed for both IgA and IgG antibodies to avenin and gliadin. Sera were also incubated with gliadin before exposure to avenin, and vice versa, to assess a possible cross-reaction between the species. Keyhole limpet hemocyanin (KLH) was used as a negative control.

    Results: Children with coeliac disease on a normal diet had significantly higher levels of antibodies to avenin, both IgG and IgA, than reference children ( P < 0.001) and the levels correlated positively with gliadin antibodies, especially of IgA-type ( r = 0.798). Both anti-avenin and anti-gliadin antibodies were only absorbed by the corresponding protein.

    Conclusions: Children with coeliac disease have antibodies to oat proteins at significantly higher levels than reference children. The absorption test did not indicate a cross-reactivity between the prolamines of wheat and oats. The method will be employed for repeated sampling of anti-avenin antibodies during a prospective interventional study with a gluten-free diet supplemented with oats.

  • 200.
    Holmberg, Hanna
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik.
    Mersebach, H
    Kanck, K
    Ludvigsson, Johnny
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Study Group on Immunogenecity, Insulin Aspart
    Antibody response to insulin in children and adolescents with newly diagnosed Type 1 diabetes.2008Ingår i: Diabetic Medicine, ISSN 0742-3071, E-ISSN 1464-5491, Vol. 25, nr 7, s. 792-797Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    AIMS: To compare levels of insulin antibodies in children and adolescents after initiation of insulin therapy using either insulin aspart (IAsp) or human insulin (HI) in combination with Neutral Protamine Hagedorn (NPH) insulin, and to investigate the relationships between insulin antibodies and HbA(1c) and insulin dose. METHODS: IAsp-specific antibodies (IAsp-Ab) and antibodies cross-reacting with HI and IAsp (HI-cross-Ab) were analysed by radioimmunoassay at diagnosis of diabetes and every 3-6 months for 30 months. Seventy-two patients (HI = 30, IAsp = 42) with Type 1 diabetes, aged 2-17 years were included. Data on HbA(1c), insulin dose and serious adverse events (SAEs) were collected retrospectively. RESULTS: IAsp-Ab levels remained low throughout the study. After 9 months, the level of HI-cross-Ab increased [mean (SD) HI, 48.8% (21.53), IAsp, 40.2% (17.92)] and remained elevated. Repeated measurement analysis of HI-cross-Ab levels showed no significant difference between treatments (P = 0.16). HI-cross-Ab were significantly associated with total insulin dose (U/kg) (P = 0.001) and time (P < 0.0001), but not with HbA(1c) (P = 0.24). Mean (+/- SD) HbA(1c) was similar at diagnosis (HI 9.5 +/- 1.97%, IAsp 9.6 +/- 1.62%), HbA(1c) then decreased and stabilized to about 6.0% in both groups. Few SAEs were reported, the majority being hypoglycaemic episodes. CONCLUSIONS: Treatment with IAsp and with HI was associated with an increase in HI-cross-Ab in insulin-naive children, but this did not influence treatment efficacy or safety. These results support the safe use of IAsp in children and adolescents with Type 1 diabetes.

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