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  • 1.
    Abdiu, Avni
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Hand och plastikkirurgi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Hand- och plastikkirurgiska kliniken US.
    Larsson, Sven-Erik
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Ortopedi och Idrottsmedicin. Östergötlands Läns Landsting, Ortopedicentrum, Ortopedkliniken Linköping.
    Wasteson, Åke
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Cellbiologi.
    Walz, Thomas
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Onkologi. Östergötlands Läns Landsting, Kirurgi- och onkologicentrum, Onkologiska kliniken US.
    Suramin blocks growth-stimulatory effects of platelet-derived growth factor on malignant fibrous histiocytomas in vitro.1999Ingår i: Cancer Letters, ISSN 0304-3835, E-ISSN 1872-7980, Vol. 146, s. 189-194Artikel i tidskrift (Refereegranskat)
  • 2.
    Abdiu, Avni
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Hand och plastikkirurgi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Hand- och plastikkirurgiska kliniken US.
    Nakamura, Hajime
    Sahaf, Bita
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Cellbiologi.
    Yodoi, Junji
    Holmgren, Arne
    Rosén, Anders
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Cellbiologi.
    Thioredoxin blood level increases after severe burn injury2000Ingår i: Antioxidants and Redox Signaling, ISSN 1523-0864, E-ISSN 1557-7716, Vol. 2, nr 4, s. 707-716Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We have investigated the thioredoxin (TRX) levels in severely burned patients and the possible origin of TRX, based on the recent understanding that TRX is a potent antioxidant with cytoprotective functions. Serum and plasma samples from burns patients and healthy blood donors were collected during the first 10 post-bum days and analyzed in a sandwich TRX enzyme-linked immunosorbent assay (ELISA). The TRX levels found were correlated to a panel of blood tests. The presence of TRX in platelets was investigated by immunoelectron microscopy and Western blotting. TRX serum levels of the severely burned patients showed a significant increase, with a mean serum TRX concentration on the day of injury of 76.5 ▒ 19.5 ng/ml (mean ▒ SD) and on post-burn day one 122.6 ▒ 66.9 ng/ml, compared to control blood donor levels of 22.7 ▒ 12.2 ng/ml (p = 0.0041 and 0.0117, respectively). A second peak of increase was found on post-burn days 7 to 9 with a four- to five-fold rise in concentration compared to controls. TRX elevation correlated well with increased platelet (p = 0.007) and leukocyte counts (p = 0.002). We also demonstrated by immunoelectron microscopy and Western blotting the presence of TRX in platelets. In conclusion, our demonstration of TRX release in burn injuries indicates that the TRX system is involved in a rapid antioxidant defense, coagulation processes, cell growth, and control of the extracellular peroxide tone intimately linked to cytoprotection and wound healing in burns. One of the cell types that delivers TRX promptly and efficiently into the blood may be the platelet.

  • 3.
    Abdiu, Avni
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Kirurgi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Hand- och plastikkirurgiska kliniken US.
    Ohannessian, Peter
    Östergötlands Läns Landsting, Rekonstruktionscentrum, Käkkliniken US.
    Berggren, Anders
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Kirurgi. Linköpings universitet, Hälsouniversitetet.
    The nasal alar elevator: A new device that may reduce the need for primary operation of the nose in patients with cleft lip2009Ingår i: SCANDINAVIAN JOURNAL OF PLASTIC AND RECONSTRUCTIVE SURGERY AND HAND SURGERY, ISSN 0284-4311, Vol. 43, nr 2, s. 71-74Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    To improve the shape of the cleft lip nose preoperatively, we have developed the nasal alar elevator. This has been used routinely since 1996 on all our cleft lip patients who have an asymmetrical nose, from the first week after birth until the date of primary lip surgery. We present our 11-year-long experience of using the device on patients born with complete, unilateral cleft lip. In this study 56 children, born between 1996 and 2006 inclusive, with complete unilateral cleft lip, had preoperative treatment with the elevator. During this 11-year period, continuous evaluation during the preoperative period, and its effects on the cleft lip nose, were evaluated, both preoperatively and postoperatively. Our results show that the preoperative use of the device has led to less need for primary nasal surgery. Instead of having to have a primary rhinoplasty (McComb) together with a lip plasty, as a routine, now only about 30% of the patients need primary surgical correction of the nose. If nasal correction is needed, a rather limited undermining of skin over the ala on the cleft side will often be sufficient. The use of a nasal elevator reduces both the length and the extent of the primary intervention, without compromising the final result.

  • 4.
    Abdiu, Avni
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Hand och plastikkirurgi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Hand- och plastikkirurgiska kliniken US.
    Wingren, Sten
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Onkologi.
    Larsson, S-E
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Ortopedi och Idrottsmedicin. Östergötlands Läns Landsting, Ortopedicentrum, Ortopedkliniken Linköping.
    Wasteson, Åke
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Cellbiologi.
    Walz, Thomas
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Onkologi. Östergötlands Läns Landsting, Kirurgi- och onkologicentrum, Onkologiska kliniken US.
    Effects of human platelet-derived growth factor-AB on sarcoma growth in vitro and in vivo.1999Ingår i: Cancer Letters, ISSN 0304-3835, E-ISSN 1872-7980, Vol. 141, s. 39-45Artikel i tidskrift (Refereegranskat)
  • 5.
    Abrahams, M
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för medicin och vård, Anestesiologi. Östergötlands Läns Landsting, MKC - Medicin och kirurgicentrum, Anestesi.
    Sjöberg, Folke
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Hand och plastikkirurgi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Hand- och plastikkirurgiska kliniken US.
    Oscarsson, Anna
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för medicin och vård, Anestesiologi. Östergötlands Läns Landsting, MKC - Medicin och kirurgicentrum, Anestesi.
    Sundqvist, Tommy
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Medicinsk mikrobiologi.
    The effects of human burn injury on urinary nitrate excretion. 1999Ingår i: Burns, ISSN 0305-4179, E-ISSN 1879-1409, Vol. 25, s. 29-33Artikel i tidskrift (Refereegranskat)
  • 6.
    Adolfsson, Lars
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Hand och plastikkirurgi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Hand- och plastikkirurgiska kliniken US.
    Arthroscopic removal of os centrale carpi causing wrist pain.2000Ingår i: Arthroscopy: The Journal of Arthroscopy And Related, ISSN 0749-8063, E-ISSN 1526-3231, Vol. 16, s. 537-539Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The Os centrale carpi is a relatively rare accessory carpal bone of the wrist that infrequently has been reported to cause symptoms. This report describes 2 cases where an apparently mobile Os centrale carpi caused painful clicking and crepitus and where the symptoms disappeared after arthroscopic removal of the ossicles.

  • 7.
    Adolfsson, Lars
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Hand och plastikkirurgi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Hand- och plastikkirurgiska kliniken US.
    Lysholm, J
    Ortopedklin Boden.
    Nettelblad, Hans
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Hand och plastikkirurgi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Hand- och plastikkirurgiska kliniken US.
    Adverse effects of extensive clavicular resections and a suggessted method of reconstruction.1999Ingår i: Journal of shoulder and elbow surgery, ISSN 1058-2746, E-ISSN 1532-6500, Vol. 8, s. 361-365Artikel i tidskrift (Refereegranskat)
  • 8. Adolfsson, L.E.
    et al.
    Nettelblad, Hans
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Kirurgi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Hand- och plastikkirurgiska kliniken US.
    Radial nerve entrapment in the upper arm as a cause of lateral arm pain: A report of four cases2001Ingår i: Scandinavian Journal of Plastic and Reconstructive Surgery and Hand Surgery, ISSN 2000-656X, E-ISSN 2000-6764, Vol. 35, nr 2, s. 217-220Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Four patients with no history of trauma presented with lateral arm pain, local tenderness, and a tingling sensation at the distal end of the arm when the radial nerve was percussed in the mid-third of the upper arm (Tinel's sign), but no clinical or subjective signs of muscular weakness. They were treated by decompression of the radial nerve in the fibrous canal proximal to the lateral intermuscular septum. Three of the patients had a complete or pronounced reduction in pain, while the fourth had only a slight improvement. Non-traumatic radial nerve entrapment in the upper arm may be the cause of lateral arm pain without clinical signs of muscular weakness.

  • 9.
    Algvere, Peep
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Oftalmologi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Ögonkliniken US/LiM.
    Gouras, P.
    Dafgård Kopp, E.
    Long-term outcome of RPE allografts in non-immunosuppressed patients with AMD.1999Ingår i: European Journal of Ophthalmology, ISSN 1120-6721, E-ISSN 1724-6016, Vol. 9, s. 217-230Artikel i tidskrift (Refereegranskat)
  • 10.
    Algvere, Peep
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Oftalmologi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Ögonkliniken US/LiM.
    Jahnberg, P.
    Textorius, Ola
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Oftalmologi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Ögonkliniken US/LiM.
    The swedish retinal detachment register. I. A database for epidemiological and clinical studies.1999Ingår i: Graefe's Archives for Clinical and Experimental Ophthalmology, ISSN 0721-832X, E-ISSN 1435-702X, Vol. 237, s. 137-144Artikel i tidskrift (Refereegranskat)
  • 11.
    Alkaissi, Aidah
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Anestesiologi med intensivvård. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Anestesi- och operationscentrum, Intensivvårdskliniken US.
    Ledin, Torbjörn
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Oto-Rhino-Laryngologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Öronkliniken US.
    Ödkvist, Lars
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Oto-Rhino-Laryngologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Öronkliniken US.
    Kalman, Sigga
    Linköpings universitet, Institutionen för medicin och hälsa, Anestesiologi med intensivvård. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Anestesi- och operationscentrum, Anestesi- och intensivvårdskliniken VIN.
    P6 acupressure increases tolerance to nausogenic motion stimulation in women with high risk for PONV2005Ingår i: Canadian Journal of Anesthesia, ISSN 1496-8975, Vol. 52, s. 703-709Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Purpose: In a previous study we noticed that P6 acupressure decreased postoperative nausea and vomiting (PONV) more markedly after discharge. As motion sickness susceptibility is increased by, for example, opioids we hypothesized that P6 acu-pressure decreased PONV by decreasing motion sickness susceptibility. We studied time to nausea by a laboratory motion challenge in a group of volunteers, during P6 and placebo acupressure.

    Methods: 60 women with high and low susceptibilities for motion sickness participated in a randomized and double-blind study with an active P6 acupressure, placebo acupressure, and a control group (n = 20 in each group). The risk score for PONV was over 50%. The motion challenge was by eccentric rotation in a chair, blindfolded and with chin to chest movements of the head. The challenge was stopped when women reported moderate nausea. Symptoms were recorded.

    Results: Mean time to moderate nausea was longer in the P6 acu-pressure group compared to the control group. P6 acupressure = 352 (259–445), mean (95% confidence interval) in seconds, control = 151 (121–181) and placebo acupressure = 280 (161–340); (P = 0.006). No difference was found between P6 and placebo acupressure or placebo acupressure and control groups. Previous severity of motion sickness did not influence time to nausea (P = 0.107). The cumulative number of symptoms differed between the three groups (P < 0.05). Fewer symptoms were reported in the P6 acupressure compared to the control group P < 0.009. Overall, P6 acupressure was only marginally more effective than placebo acupressure on the forearms.

    Conclusion: In females with a history of motion sickness P6 acu-pressure increased tolerance to experimental nauseogenic stimuli, and reduced the total number of symptoms reported.

  • 12.
    Andersson, Ulf
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande. Linköpings universitet, Filosofiska fakulteten.
    Lyxell, Björn
    Linköpings universitet, Institutionen för beteendevetenskap och lärande. Linköpings universitet, Filosofiska fakulteten. Östergötlands Läns Landsting, Rekonstruktionscentrum, Öronkliniken US.
    Phonological Deterioration in Adults with an Acquired Severe Hearing Impairment1998Ingår i: Scandinavian Audiology, ISSN 0107-8593, Vol. 27, nr 49, s. 93-100Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The study examined the phonological processing skills in a group of adults who have acquired a severe hearing loss in adult life. These severely hearing-impaired individuals performed at a significantly lower level on the rhyme judgement tasks and the letter span task, but on a par with the control group on other cognitive tests. A correlation analysis showed that duration of hearing loss is negatively related to performance on the rhyme judgement tasks and letter span task. The results indicate that the phonological processing skills in individuals who have acquired a severe hearing loss in adult life deteriorates. The results are discussed with respect to theoretical and clinical implications.

  • 13.
    Andersson, Ulf
    et al.
    Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutionen för beteendevetenskap och lärande.
    Lyxell, Björn
    Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutionen för beteendevetenskap och lärande. Östergötlands Läns Landsting, Rekonstruktionscentrum, Öronkliniken US.
    Working memory deficit in children with mathematical difficulties: A general or specific deficit?2007Ingår i: Journal of experimental child psychology (Print), ISSN 0022-0965, E-ISSN 1096-0457, Vol. 96, nr 3, s. 197-228Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This study examined whether children with mathematical difficulties (MDs) or comorbid mathematical and reading difficulties have a working memory deficit and whether the hypothesized working memory deficit includes the whole working memory system or only specific components. In the study, 31 10-year-olds with MDs and 37 10-year-olds with both mathematical and reading difficulties were compared with 47 age-matched and 50 younger controls (9-year-olds) on a number of working memory tasks. Compared with the age-matched controls, both groups of children with MDs performed worse on tasks tapping the central executive (e.g., visual matrix span) and the phonological loop (e.g., word span). More important, the MD group performed worse than the younger controls on the counting span task, whereas the group with comorbid mathematical and reading difficulties performed worse on the counting span task and the visual matrix span task. These findings provide support for the assumption that children with MDs have a working memory deficit. More specifically, children with MDs have a central executive deficit connected to concurrent processing and storage of numerical and visual information. © 2006 Elsevier Inc. All rights reserved.

  • 14.
    Andersson, Ulf
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande. Linköpings universitet, Filosofiska fakulteten.
    Lyxnell, Björn
    Linköpings universitet, Institutionen för beteendevetenskap och lärande. Linköpings universitet, Filosofiska fakulteten. Östergötlands Läns Landsting, Rekonstruktionscentrum, Öronkliniken US.
    Rönnberg, Jerker
    Linköpings universitet, Institutet för handikappvetenskap (IHV). Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Spens, Karl-Erik
    Cognitive correlates of visual speech understanding in hearing impaired individuals2001Ingår i: Journal of Deaf Studies and Deaf Education, ISSN 1081-4159, Vol. 6, nr 2, s. 103-116Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This study examined the extent to which different measures ofspeechreading performance correlated with particular cognitiveabilities in a population of hearing-impaired people. Althoughthe three speechreading tasks (isolated word identification,sentence comprehension, and text tracking) were highly intercorrelated,they tapped different cognitive skills. In this population,younger participants were better speechreaders, and, when agewas taken into account, speech tracking correlated primarilywith (written) lexical decision speed. In contrast, speechreadingfor sentence comprehension correlated most strongly with performanceon a phonological processing task (written pseudohomophone detection)but also on a span measure that may have utilized visual, nonverbalmemory for letters. We discuss the implications of this pattern.

  • 15.
    Andersson-Engels, Stefan
    et al.
    Inst för fysik Lunds Tekniska Högskola.
    Pålsson, S
    Backlund, Erik Olof
    IMT LiU.
    Sturnegk, Patrik
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Neurokirurgi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Neurokirurgiska kliniken US.
    Lundberg, Peter
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för medicin och vård, Medicinsk radiofysik. Östergötlands Läns Landsting, Kirurgi- och onkologicentrum, Radiofysikavdelningen. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Smedby, Örjan
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för medicin och vård, Medicinsk radiologi. Östergötlands Läns Landsting, Bildmedicinskt centrum, Avdelningen för radiologi US. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV.
    Svanberg, K
    Eriksson, Ola
    Linköpings universitet, Tekniska högskolan. Linköpings universitet, Institutionen för medicinsk teknik, Biomedicinsk instrumentteknik.
    Wårdell, Karin
    Linköpings universitet, Tekniska högskolan. Linköpings universitet, Institutionen för medicinsk teknik, Biomedicinsk instrumentteknik.
    ALA-PpIX Fluorescence and spectroscopy in connection with stereotactic biopsy of human glioblastomas2005Ingår i: European Conference on Biomedical Optics,2005, 2005Konferensbidrag (Refereegranskat)
  • 16. Andreasson, Sten
    et al.
    Breuer, Debra K
    Eksandh, Louise
    Ponjavic, Vesna
    Frennesson, Christina
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Oftalmologi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Ögonkliniken US.
    Hiriyanna, Suja
    Filippova, Elena
    Yashar, Beverly M
    Swaroop, Anand
    Clinical studies of X-linked retinitis pigmentosa in three Swedish families with newly identified mutations in the RP2 and RPGR-ORF15 genes2003Ingår i: Ophthalmic Genetics, ISSN 1381-6810, E-ISSN 1744-5094, Vol. 24, nr 4, s. 215-223Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Purpose: To describe new disease-causing RP2 and RPGR-ORF15 mutations and their corresponding clinical phenotypes in Swedish families with X-linked retinitis pigmentosa (XLRP) and to establish genotype-phenotype correlations by studying the clinical spectrum of disease in families with a known molecular defect. Methods: Seventeen unrelated families with RP and an apparent X-linked pattern of disease inheritance were identified from the Swedish RP registry and screened for mutations in the RP2 and RPGR (for the RP3 disease) genes. These families had been previously screened for the RPGR exons 1-19, and disease-causing mutations were identified in four of them. In the remaining 13 families, we sequenced the RP2 gene and the newly discovered RPGR-ORF exon. Detailed clinical evaluations were then obtained from individuals in the three families with identified mutations. Results: Mutations in RP2 and RPGR-ORF15 were identified in three of the 13 families. Clinical evaluations of affected males and carrier females demonstrated varying degrees of retinal dysfunction and visual handicap, with early onset and severe disease in the families with mutations in the ORF15 exon of the RPGR gene. Conclusions: A total of seven mutations in the RP2 and RPGR genes have been discovered so far in Swedish XLRP families. All affected individuals express a severe form of retinal degeneration with visual handicap early in life, although the degree of retinal dysfunction varies both in hemizygous male patients and in heterozygous carrier females. Retinal disease phenotypes in patients with mutations in the RPGR-ORF15 were more severe than in patients with mutations in RP2 or other regions of the RPGR.

  • 17.
    Angelidis, Ioannis K
    et al.
    Stanford University Medical Center.
    Thorfinn, Johan
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Kirurgi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Hand- och plastikkirurgiska kliniken US.
    Connolly, Ian D
    Stanford University Medical Center.
    Lindsey, Derek
    Stanford University Medical Center.
    Pham, Hung M
    Stanford University Medical Center.
    Chang, James
    Stanford University Medical Center.
    Tissue Engineering of Flexor Tendons: The Effect of a Tissue Bioreactor on Adipoderived Stem Cell-Seeded and Fibroblast-Seeded Tendon Constructs2010Ingår i: JOURNAL OF HAND SURGERY-AMERICAN VOLUME, ISSN 0363-5023, Vol. 35A, nr 9, s. 1466-1472Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Purpose Tissue-engineered flexor tendons could eventually be used for reconstruction of large tendon defects. The goal of this project was to examine the effect of a tissue bioreactor on the biomechanical properties of tendon constructs seeded with adipoderived stem cells (ASCs) and fibroblasts (Fs). Methods Rabbit rear paw flexor tendons were acellularized and seeded with ASCs or Fs. A custom bioreactor applied a cyclic mechanical load of 1.25 N at 1 cycle/minute for 5 days onto the tendon constructs. Three additional groups were used as controls: fresh tendons and tendons reseeded with either ASCs or Fs that were not exposed to the bioreactor treatment and were left in stationary incubation for 5 days. We compared the ultimate tensile stress (UTS) and elastic modulus (EM) of bioreactor-treated tendons with the unloaded control tendons and fresh tendons. Comparison across groups was assessed using one-way analysis of variance with the significance level set at pandlt;.05. Pairwise comparison between the samples was determined by using the Tukey test. Results The UTS and EM values of bioreactor-treated tendons that were exposed to cyclic load were significantly higher than those of unloaded control tendons. Acellularized tendon constructs that were reseeded with ASCs and exposed to a cyclic load had a UTS of 66.76 MPa and an EM of 906.68 MPa; their unloaded equivalents had a UTS of 47.90 MPa and an EM of 715.57 MPa. Similar trends were found in the fibroblast-seeded tendon constructs that were exposed to the bioreactor treatment. The bioreactor-treated tendons approached the UTS and EM values of fresh tendons. Histologically, we found that cells reoriented themselves parallel to the direction of strain in response to cyclic strain. Conclusions The application of cyclic strain on seeded tendon constructs that were treated with the bioreactor helped achieve a UTS and an EM comparable with those of fresh tendons. Bioreactor pretreatment and alternative cell lines, such as ASCs and Fs, might therefore contribute to the in vitro production of strong tendon material.

  • 18.
    Ansell, Anna
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Oto-Rhino-Laryngologi. Linköpings universitet, Hälsouniversitetet.
    Farnebo, Lovisa
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Oto-Rhino-Laryngologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Öronkliniken US.
    Grénman, Reidar
    Department of Otorhinolaryngology, Head & Neck Surgery, and Medical Biochemistry, University of Turku, Finland.
    Roberg, Karin
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Oto-Rhino-Laryngologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Öronkliniken US.
    Thunell, Lena
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Cellbiologi. Linköpings universitet, Hälsouniversitetet.
    Polymorphism of FGFR4 in cancer development and sensitivity to cisplatin and radiation in head and neck cancer2009Ingår i: Oral Oncology, ISSN 1368-8375, E-ISSN 1879-0593, Vol. 45, nr 1, s. 23-29Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The aim of this study was to investigate the predisposition of the FGFR4 Gly/Arg polymorphism for development of head and neck squamous cell carcinoma (HNSCC) and, furthermore, to examine if the FGFR4 Arg(388) allele can be associated with resistance to chemo-and radiotherapy.

    When analysing 110 tumour biopsies a significant 1.7-fold increased risk to develop HNSCC in individuals carrying the Gly(388) allele (p = 0.026) was found. Moreover a 2-fold increased risk for mates harbouring the Gly(388) allele (p = 0.031) to develop HNSCC was detected. In 39 HNSCC cell lines the role of the Arg(388) allele for radiation and cisplatin sensitivity was investigated. Our results show no rote of the Arg(388) allele for the radiosensitivity (p = 0.996) but indicate a tendency to increased cisplatin sensitivity (p = 0.141). When screening the transmembrane and kinase domains in the FGFR4 gene a novel mutation, probably generating a truncated protein lacking exons 14-18, was found in six of eight selected cell lines.

    Taken together, we have here identified a marker that predicts the risk to develop HNSCC and possibly the sensitivity to cisplatin as well as a novel. mutation in the FGFR4 gene.

  • 19.
    Ansell, Anna
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Oto-Rhino-Laryngologi. Linköpings universitet, Hälsouniversitetet.
    Jerhammar, Fredrik
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Oto-Rhino-Laryngologi. Linköpings universitet, Hälsouniversitetet.
    Ceder, R
    Karolinska Institute, Institute Environm Med, Div Biochem Toxicol and Expt Canc Research, S-10401 Stockholm, Sweden .
    Grenman, R
    Turku University, Department Otorhinolaryngol Head and Neck Surg, Cent Hospital, Turku, Finland .
    Roberg, Karin
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Oto-Rhino-Laryngologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Öronkliniken US.
    Matrix metalloproteinase-7 and-13 predict response to cisplatin in head and neck cancer in ORAL ONCOLOGY, vol , issue , pp 94-942009Ingår i: ORAL ONCOLOGY, 2009, s. 94-94Konferensbidrag (Refereegranskat)
    Abstract [en]

    n/a

  • 20.
    Ansell, Anna
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Oto-Rhino-Laryngologi. Linköpings universitet, Hälsouniversitetet.
    Jerhammar, Fredrik
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Oto-Rhino-Laryngologi. Linköpings universitet, Hälsouniversitetet.
    Ceder, Rebecca
    Karolinska Institute, Stockholm, Sweden.
    Grafström, Roland
    VTT Technical Research Centre of Finland.
    Grénman, Reidar
    VTT Technical Research Centre of Finland.
    Roberg, Karin
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Oto-Rhino-Laryngologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Öronkliniken US.
    Matrix metalloproteinase-7 and -13 expression associate to cisplatin resistance in head and neck cancer cell lines.2009Ingår i: Oral Oncology, ISSN 1368-8375, E-ISSN 1879-0593, Vol. 45, nr 10, s. 866-871Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Concomitant chemoradiotherapy is a common treatment for advanced head and neck squamous cell carcinomas (HNSCC). Cisplatin is the backbone of chemotherapy regimens used to treat HNSCC. Therefore, the aim of this study was to identify predictive markers for cisplatin treatment outcome in HNSCC. The intrinsic cisplatin sensitivity (ICS) was determined in a panel of tumour cell lines. From this panel, one sensitive and two resistant cell lines were selected for comparative transcript profiling using microarray analysis. The enrichment of Gene Ontology (GO) categories in sensitive versus resistant cell lines were assessed using the Gene Ontology Tree Machine bioinformatics tool. In total, 781 transcripts were found to be differentially expressed and 11 GO categories were enriched. Transcripts contributing to this enrichment were further analyzed using Ingenuity Pathway Analysis (IPA) for identification of key regulator genes. IPA recognized 20 key regulator genes of which five were differentially expressed in sensitive versus resistant cell lines. The mRNA level of these five genes was further assessed in a panel of 25 HNSCC cell lines using quantitative real-time PCR. Among these key regulators, MMP-7 and MMP-13 are implicated as potential biomarkers of ICS. Taken together, genome-wide transcriptional analysis identified single genes, GO categories as well as molecular networks that are differentially expressed in HNSCC cell lines with different ICS. Furthermore, two novel predictive biomarkers for cisplatin resistance, MMP-7 and MMP-13, were identified.

  • 21.
    Ansell, Anna
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Oto-Rhino-Laryngologi. Linköpings universitet, Hälsouniversitetet.
    Jerhammar, Fredrik
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Oto-Rhino-Laryngologi. Linköpings universitet, Hälsouniversitetet.
    Ceder, Rebecca
    Institute of Environmental Medicine, Division of Biochemical Toxicology and Experimental Cancer Research, Karolinska Institution, Stockholm, Sweden.
    Grénman, Reidar
    Department of Otorhinolaryngology, Head & Neck Surgery, Turku University Central Hospital, Finland.
    Roberg, Karin
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Oto-Rhino-Laryngologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Öronkliniken US.
    Matrix metalloproteinase-7 and -13 predict response to cisplatin in head and neck cancerManuskript (preprint) (Övrigt vetenskapligt)
    Abstract [en]

    Purpose: To identify gene ontology categories and key regulators with impact on the intrinsic cisplatin sensitivity (ICS) in head and neck squamous cell carcinoma (HNSCC).

    Experimental design: The ICS was determined in 35 HNSCC cell lines. Three of these cell lines, one sensitive and two resistant, were selected for microarray analysis. Gene Ontology (GO) categories were assessed using the gene ontology tree machine (GOTM) tool, and transcripts included in these categories were further analyzed using Ingenuity Pathway Analysis (IPA) for detection of key regulator genes. A group of key regulators were verified at protein level by Western blot analysis and on mRNA level using quantitative real-time PCR (qPCR).

    Results: 781 transcripts were detected as significantly differently expressed for the resistant cell lines compared to the sensitive cell line. A total of ten different categories were enriched in GOTM by these transcripts and a transcriptional profile was made from the 20 key regulators identified in the IPA analysis. Five key regulator genes, apolipoprotein E (APOE), catenin beta1 (CTNNB1), matrix metalloproteinase-7 (MMP-7), matrix metalloproteinase-13 (MMP-13), and thrombospondin 1 (THBS1), were verified in 25 HNSCC cell lines on mRNA level using qPCR. The results confirmed MMP-7 (p=0.0013) and implied MMP-13 (p=0.058) as potential biomarkers of ICS.

    Conclusions: We conclude that genome-wide transcriptional analysis and appropriate bioinformatics enable the identification of genes with impact on treatment response. Furthermore, we propose MMP-7 and MMP-13 as predictive markers of cisplatin resistance in HNSCC.

  • 22.
    Antepohl, Wolfram
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Rehabiliteringsmedicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Rehabiliteringsmedicinska kliniken US.
    Dahle, Charlotte
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Klinisk immunologi. Linköpings universitet, Hälsouniversitetet.
    Sjöberg, Folke
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Brännskadevård. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Sinnescentrum, Hand- och plastikkirurgiska kliniken US. Östergötlands Läns Landsting, Sinnescentrum, Anestesi- och operationkliniken US.
    Thorfinn, Johan
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Kirurgi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Hand- och plastikkirurgiska kliniken US.
    Interleukin-8 is elevated in cerebrospinal fluid following high-voltage electrical injury with late-onset paraplegia suggesting neuronal damage at the microlevel as causative factor2010Ingår i: Burns, ISSN 0305-4179, E-ISSN 1879-1409, Vol. 36, nr 3, s. e7-e9Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The patient, a 31-year-old male, sustained an electric burn injury (16 kV, AC/DC) while working with electric power lines. He was acutely admitted to a national burn center in Southeast Sweden, where burns equalling 29% of the total body surface area were noted. The burns were located at the front of the abdomen, upper arms bilaterally, and the left hip region, and the lesions were estimated to be mainly of the dermal type, what was believed initially to be caused mainly by an electric flash. There were no obvious entry or exit sites of the electric current. However, myoglobin in plasma was elevated as a sign of muscular degradation, suggesting that at least some current had passed through the tissues. According to the paramedic report there was an episode of a few minutes of unconsciousness immediately after the injury, but the patient was fully awake and alert on admission. There was no concomitant trauma.

  • 23.
    Arlinger, Stig
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Oto-Rhino-Laryngologi.
    Danermark, Berth
    Espmark, Ann-Kristin
    Mäki-Torkko, Elina
    Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Öronkliniken US.
    Möller, Claes
    Steorn, Monika
    Tengstrand, Tomas
    Uhlin, Pia
    Hörselrehabilitering till vuxna. Rapport från expertgruppen för hörselvård2008Rapport (Övrigt vetenskapligt)
    Abstract [sv]

      

  • 24.
    Arlinger, Stig
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Oto-Rhino-Laryngologi. Linköpings universitet, Hälsouniversitetet.
    Lunner, Thomas
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Teknisk audiologi. Linköpings universitet, Hälsouniversitetet.
    Lyxell, Björn
    Linköpings universitet, Institutionen för beteendevetenskap och lärande. Linköpings universitet, Filosofiska fakulteten. Östergötlands Läns Landsting, Rekonstruktionscentrum, Öronkliniken US.
    Pichora-Fuller, M Kathleen
    University of Toronto.
    The emergence of cognitive hearing science.2009Ingår i: Scandinavian journal of psychology, ISSN 1467-9450, Vol. 50, nr 5, s. 371-384Artikel, forskningsöversikt (Refereegranskat)
    Abstract [en]

    Cognitive Hearing Science or Auditory Cognitive Science is an emerging field of interdisciplinary research concerning the interactions between hearing and cognition. It follows a trend over the last half century for interdisciplinary fields to develop, beginning with Neuroscience, then Cognitive Science, then Cognitive Neuroscience, and then Cognitive Vision Science. A common theme is that an interdisciplinary approach is necessary to understand complex human behaviors, to develop technologies incorporating knowledge of these behaviors, and to find solutions for individuals with impairments that undermine typical behaviors. Accordingly, researchers in traditional academic disciplines, such as Psychology, Physiology, Linguistics, Philosophy, Anthropology, and Sociology benefit from collaborations with each other, and with researchers in Computer Science and Engineering working on the design of technologies, and with health professionals working with individuals who have impairments. The factors that triggered the emergence of Cognitive Hearing Science include the maturation of the component disciplines of Hearing Science and Cognitive Science, new opportunities to use complex digital signal-processing to design technologies suited to performance in challenging everyday environments, and increasing social imperatives to help people whose communication problems span hearing and cognition. Cognitive Hearing Science is illustrated in research on three general topics: (1) language processing in challenging listening conditions; (2) use of auditory communication technologies or the visual modality to boost performance; (3) changes in performance with development, aging, and rehabilitative training. Future directions for modeling and the translation of research into practice are suggested.

  • 25. Arnardottir, E S
    et al.
    Thorleifsdottir, B
    Svanborg, Eva
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Klinisk Neurofysiologi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Neurofysiologiska kliniken US.
    Gislason, T
    Decreased related sweating in CPAP treated OSA patients2006Ingår i: 18th Congress of European Sleep Research Society,2006, 2006, s. 200-201Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

       

  • 26.
    Arnardottir, Erna S I F
    et al.
    Landspitali University Hospital.
    Thorleifsdottir, Bjorg
    University of Iceland.
    Svanborg, Eva
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Klinisk neurofysiologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Neurofysiologiska kliniken US.
    Olafsson, Isleifur
    Landspitali University Hospital.
    Gislason, Thorarinn
    Landspitali University Hospital.
    Sleep-related sweating in obstructive sleep apnoea: association with sleep stages and blood pressure2010Ingår i: JOURNAL OF SLEEP RESEARCH, ISSN 0962-1105, Vol. 19, nr 1, s. 122-130Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Pandgt;The aim of this study was to investigate sleep-related sweating as a symptom of obstructive sleep apnoea (OSA). Fifteen otherwise healthy male non-smoking patients with untreated moderate-to-severe OSA underwent polysomnography, including measurements of skin and core body temperature and electrodermal activity (EDA) as an objective indicator of sweating. Evening and morning blood pressure was measured as well as catecholamines in nocturnal urine. All measurements were repeated after 3 months on successful continuous positive airway pressure (CPAP) treatment. The untreated OSA subjects had a mean (+/- SD) apnoea-hypopnoea index of 45.3 +/- 3.9 and a mean EDA index during sleep of 131.9 +/- 22.4 events per hour. Patients with higher EDA indices had higher systolic blood pressure in the evening and morning (P = 0.001 and 0.006) and lower rapid eye movement (REM) sleep percentage (P = 0.003). The EDA index decreased significantly to 78.5 +/- 17.7 in the patients on CPAP treatment (P = 0.04). The decrease correlated with lower evening systolic and diastolic blood pressure (P = 0.05 and 0.006) and an increase in REM% (P = 0.02). No relationship was observed between EDA and skin or core body temperature, or to catecholamine levels in urine. OSA patients who experience sleep-related sweating may have increased blood pressure and decreased REM sleep compared with other OSA patients. CPAP treatment appears to lower blood pressure and increase REM sleep to a higher extent in these patients compared with other OSA patients.

  • 27.
    Asker-Árnason, Lena
    et al.
    Section of Logopedics, Phoniatrics and Audiology, Department of Clinical Sciences, Lund University, Sweden.
    Wass, Malin
    Linköpings universitet, Institutet för handikappvetenskap (IHV). Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Ibertsson, Tina
    Section of Logopedics, Phoniatrics and Audiology, Department of Clinical Sciences, Lund University, Sweden.
    Lyxell, Björn
    Linköpings universitet, Institutionen för beteendevetenskap och lärande. Linköpings universitet, Filosofiska fakulteten. Östergötlands Läns Landsting, Rekonstruktionscentrum, Öronkliniken US.
    Sahlén, Birgitta
    Section of Logopedics, Phoniatrics and Audiology, Department of Clinical Sciences, Lund University, Sweden.
    The Relationship between Reading Comphehension, Working Memory and Language in Children with Cochlear Implants2007Ingår i: Acta Neuropsychologica, ISSN 1730-7503, Vol. 5, nr 4, s. 163-186Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    and profound hearing impairment treated by cochlear implants (CI). In this study we explore this relationship in sixteen Swedish children with CI. We found that over 60% of the children with CI performed at the level of their hearing peers in a reading comprehension test. Demographic factors were not predictive of reading comprehension, but a complex working memory task was. Reading percentile was significantly correlated to the working memory test, but no other correlations between reading and cognitive/linguistic factors remained significant after age was factored out. Individual results from a comparison of the two best and the two poorest readers corroborate group results, confirming the important role of working memory for reading as measured by comprehension of words and sentences in this group of children.

  • 28.
    Austeng, Dordi
    et al.
    Uppsala University.
    Blennow, Mats
    Karolinska University Hospital .
    Ewald, Uwe
    Uppsala University.
    Fellman, Vineta
    Lund University.
    Fritz, Thomas
    Sahlgrens University Hospital.
    Hellstrom-Westas, Lena
    Uppsala University.
    Hellstrom, Ann
    University Gothenburg.
    Holmgren, Per Åke
    Umea University Hospital.
    Holmstrom, Gerd
    Uppsala University.
    Jakobsson, Peter
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Oftalmologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Ögonkliniken US/LiM.
    Jeppsson, Annika
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Obstetrik och gynekologi. Linköpings universitet, Hälsouniversitetet.
    Johansson, Kent
    Umeå University.
    Kallen, Karin
    Lund University.
    Lagercrantz, Hugo
    Astrid Lindgren Childrens Hospital.
    Laurini, Ricardo
    Bodo Central Hospital.
    Lindberg, Eva
    University of Örebro.
    Lundqvist, Anita
    Lund University.
    Marsal, Karel
    Lund University.
    Nilstun, Tore
    Lund University.
    Norden-Lindeberg, Solveig
    Uppsala University.
    Norman, Mikael
    Karolinska Institute.
    Olhager, Elisabeth
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Pediatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
    Oestlund, Ingrid
    University of Örebro.
    Serenius, Fredrik
    Umeå University Hospital.
    Simic, Marija
    Karolinska University Hospital .
    Sjors, Gunnar
    Uppsala University.
    Stigson, Lennart
    Sahlgrens University Hospital.
    Stjernqvist, Karin
    Lund University.
    Stromberg, Bo
    Uppsala University.
    Tornqvist, Kristina
    Lund University.
    Wennergren, Margareta
    Sahlgrens University Hospital.
    Wallin, Agneta
    Karolinska University.
    Westgren, Magnus
    Karolinska University Hospital.
    Incidence of and risk factors for neonatal morbidity after active perinatal care: extremely preterm infants study in Sweden (EXPRESS)2010Ingår i: ACTA PAEDIATRICA, ISSN 0803-5253, Vol. 99, nr 7, s. 978-992Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Aims: The aim of this study was to determine the incidence of neonatal morbidity in extremely preterm infants and to identify associated risk factors. Methods: Population based study of infants born before 27 gestational weeks and admitted for neonatal intensive care in Sweden during 2004-2007. Results: Of 638 admitted infants, 141 died. Among these, life support was withdrawn in 55 infants because of anticipation of poor long-term outcome. Of 497 surviving infants, 10% developed severe intraventricular haemorrhage (IVH), 5.7% cystic periventricular leucomalacia (cPVL), 41% septicaemia and 5.8% necrotizing enterocolitis (NEC); 61% had patent ductus arteriosus (PDA) and 34% developed retinopathy of prematurity (ROP) stage andgt;= 3. Eighty-five per cent needed mechanical ventilation and 25% developed severe bronchopulmonary dysplasia (BPD). Forty-seven per cent survived to one year of age without any severe IVH, cPVL, severe ROP, severe BPD or NEC. Tocolysis increased and prolonged mechanical ventilation decreased the chances of survival without these morbidities. Maternal smoking and higher gestational duration were associated with lower risk of severe ROP, whereas PDA and poor growth increased this risk. Conclusion: Half of the infants surviving extremely preterm birth suffered from severe neonatal morbidities. Studies on how to reduce these morbidities and on the long-term health of survivors are warranted.

  • 29.
    Austeng, Dordi
    et al.
    Uppsala University Hospital.
    Kallen, Karin B M
    Lund University.
    Ewald, Uwe W
    Uppsala University Hospital.
    Jakobsson, Peter
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Oftalmiatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Ögonkliniken US/LiM.
    Holmstrom, Gerd E
    Uppsala University Hospital.
    Incidence of Retinopathy of Prematurity in Infants Born Before 27 Weeks Gestation in Sweden2009Ingår i: ARCHIVES OF OPHTHALMOLOGY, ISSN 0003-9950, Vol. 127, nr 10, s. 1315-1319Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Objective: To determine the incidence of retinopathy of prematurity (ROP) in extremely preterm infants born before 27 weeks gestation in Sweden during a 3-year period. Methods: A national, prospective, population-based study was performed in Sweden from April 1, 2004, to March 31, 2007. The ophthalmologic part of the study was separately organized, and screening for ROP was performed beginning postnatal week 5. The criteria for the treatment of ROP agreed with the recommendations of the Early Treatment for Retinopathy of Prematurity Cooperative Group. Results: During the study, 506 of 707 live-born infants survived until the first eye examination. Of these, 368 (72.7%) had ROP: 37.9% had mild ROP and 34.8% had severe ROP. Ninety-nine infants (19.6%) were treated. Gestational age at birth was a stronger predictor of ROP than was birth weight. A log-linear relationship between severe ROP and gestational age at birth was found in the present cohort, and the risk of ROP was reduced by 50% for each week of increase in gestational age at birth. Conclusions: Today, extremely preterm infants are surviving, and this population-based study with ROP as a primary outcome shows a higher incidence of this condition than in previously reported national cohorts.

  • 30.
    Austeng, Dordi
    et al.
    Uppsala University.
    Kallen, Karin B M
    Lund University.
    Hellstrom, Ann
    University of Gothenburg.
    Jakobsson, Peter
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Oftalmiatrik. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Ögonkliniken US/LiM.
    Johansson, Kent
    Norrlands University Hospital.
    Tornqvist, Kristina
    Lund University Hospital.
    Wallin, Agneta
    St Eriks Eye Hospital.
    Holmstrom, Gerd E
    Uppsala University.
    Screening for Retinopathy of Prematurity in Infants Born Before 27 Weeks Gestation in Sweden2011Ingår i: ARCHIVES OF OPHTHALMOLOGY, ISSN 0003-9950, Vol. 129, nr 2, s. 167-172Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Objective: To analyze screening for retinopathy of prematurity (ROP) during a 3-year period in a national cohort of infants born before 27 weeks gestation. Methods: A national prospective study of neonatal morbidity in extremely preterm infants was performed in Sweden between April 1, 2004, and March 31, 2007. Screening for ROP was to start in the fifth postnatal week and to continue weekly until complete vascularization of the retina or until regression of ROP. Results: The first eye examination was performed no later than the sixth postnatal week in 84.8% of 506 infants, and the last examination was performed at postmenstrual age (PMA) of 38 weeks or later in 96.2% of infants. The mean and median numbers of days between examinations in the total cohort were 8.6 and 7.9 days, respectively (range, 1-27.8 days), and the mean and me-dian numbers of examinations were 12 and 10, respectively. Most infants were treated during a limited period (eg, at PMA of 39 weeks, 75.0% of infants had been treated). Conclusions: The objective of screening for ROP is timely detection of ROP before reaching treatment of criteria, ie, type 1 ROP, according to the Early Treatment for ROP recommendations. In our population of infants born before 27 weeks gestation, the first examination could safely be postponed until PMA of 31 weeks because the onset of ROP stage 3 did not occur before then and criteria for treatment were not reached before PMA of 32 weeks. Gestational age at birth and PMA at the time of examination should be considered when deciding when and where the next examination should be performed.

  • 31.
    Backlund, E.-O.
    Östergötlands Läns Landsting, Rekonstruktionscentrum, Neurokirurgisk klinik. Linköpings universitet, Hälsouniversitetet.
    Commentary2004Ingår i: Surgical Neurology, ISSN 0090-3019, E-ISSN 1879-3339, Vol. 61, nr 6, s. 540s. 540-Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    [No abstract available]

  • 32.
    Backlund, EO
    Östergötlands Läns Landsting, Rekonstruktionscentrum, Neurokirurgisk klinik. Linköpings universitet, Hälsouniversitetet.
    Letter: Gamma hypophysectomy2004Ingår i: Journal of Neurosurgery, ISSN 0022-3085, E-ISSN 1933-0693, Vol. 100, nr 6, s. 1133-1134Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    n/a

  • 33.
    Backlund, Erik-Olof
    Östergötlands Läns Landsting, Rekonstruktionscentrum, Neurokirurgiska kliniken US.
    Reflections: A historical vignette2004Ingår i: Neurosurgery, ISSN 0148-396X, E-ISSN 1524-4040, Vol. 54, nr 3, s. 734-741Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    n/a

  • 34.
    Backstrom, D.
    et al.
    Östergötlands Läns Landsting, Anestesi- och operationscentrum, Anestesi- och intensivvårdskliniken VIN.
    Al-Ayoubi, Fawzi
    Linköpings universitet, Institutionen för klinisk och experimentell medicin. Linköpings universitet, Hälsouniversitetet.
    Steinvall, Ingrid
    Linköpings universitet, Institutionen för klinisk och experimentell medicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Hand- och plastikkirurgiska kliniken US.
    Fredrikson, Mats
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Yrkes- och miljömedicin. Linköpings universitet, Hälsouniversitetet.
    Sjöberg, Folke
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Brännskadevård. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Sinnescentrum, Hand- och plastikkirurgiska kliniken US. Östergötlands Läns Landsting, Sinnescentrum, Anestesi- och operationkliniken US.
    Letter: Outcome of trauma patients2010Ingår i: Acta Anaesthesiologica Scandinavica, ISSN 0001-5172, E-ISSN 1399-6576, Vol. 54, nr 7, s. 902-903Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    n/a

  • 35.
    Bak, Julia
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin.
    Gunnarsson, Thorsteinn
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Neurokirurgi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Neurokirurgiska kliniken US.
    Stereotactic brain biopsies guided by intraoperative cytological diagnosis2001Ingår i: Modern Pathology, ISSN 0893-3952, E-ISSN 1530-0285, Vol. 14, nr 1, s. 1214-Konferensbidrag (Övrigt vetenskapligt)
  • 36.
    Bak, Zoltan
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Anestesiologi med intensivvård. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Anestesi- och operationscentrum, Operationskliniken US.
    Sjöberg, Folke
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Brännskadevård. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Hand- och plastikkirurgiska kliniken US.
    Eriksson, Olle
    Linköpings universitet, Institutionen för datavetenskap, Statistik. Linköpings universitet, Filosofiska fakulteten.
    Steinvall, Ingrid
    Linköpings universitet, Institutionen för klinisk och experimentell medicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Hand- och plastikkirurgiska kliniken US.
    Janerot Sjöberg, Birgitta
    Linköpings universitet, Institutionen för medicin och hälsa, Klinisk fysiologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Hjärtcentrum, Fysiologiska kliniken.
    Hemodynamic Changes During Resuscitation After Burns Using the Parkland Formula2009Ingår i: Journal of Trauma, ISSN 0022-5282, E-ISSN 1529-8809, Vol. 66, nr 2, s. 329-336Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: The Parkland formula (2-4 mL/kg/burned area of total body surface area %) with urine output and mean arterial pressure (MAP) as endpoints; for the fluid resuscitation in burns is recommended all over the world. There has recently been a discussion on whether central circulatory endpoints should be used instead, and also whether volumes of fluid should be larger. Despite this, there are few central hemodynamic data available in the literature about the results when the formula is used correctly.

    Methods: Ten burned patients, admitted to our unit early, and with a burned area of >20% of total body sur-face area were investigated at 12, 24, and 36 hours after injury. Using transesophageal echocardiography, pulmonary artery catheterization, and transpulmonary thermodilution to monitor them, we evaluated the cardiovascular coupling when urinary output and MAP were used as endpoints.

    Results: Oxygen transport variables, heart rate, MAP, and left ventricular fractional area, did not change significantly during fluid resuscitation. Left ventricular end-systolic and end-diastolic area and global end-diastolic volume index increased from subnormal values at 12 hours to normal ranges at 24 hours after the burn. Extravascular lung intrathoracal blood volume ratio was increased 12 hours after the burn.

    Conclusions: Preload variables, global systolic function, and oxygen transport recorded simultaneously by three separate methods showed no need to increase the total fluid volume within 36 hours of a major burn. Early (12 hours) signs of central circulatory hypovolemia, however, support more rapid infusion of fluid at the beginning of treatment.

  • 37.
    Bergemalm, Per-Olof
    et al.
    Orebro University Hospital.
    Hennerdal, Sture
    Orebro University Hospital.
    Persson, Birger
    Orebro University Hospital.
    Lyxell, Björn
    Linköpings universitet, Institutionen för beteendevetenskap och lärande. Linköpings universitet, Filosofiska fakulteten. Östergötlands Läns Landsting, Rekonstruktionscentrum, Öronkliniken US.
    Borg, Erik
    Orebro University Hospital.
    Perception of the acoustic environment and neuroimaging findings: a report of six cases with a history of closed head injury2009Ingår i: ACTA OTO-LARYNGOLOGICA, ISSN 0001-6489, Vol. 129, nr 7, s. 801-808Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Conclusion: The main finding was the relation between difficulty in determining the direction of movement of a sound source and frontal lesions and poor working memory. Poor correspondence in some cases between functional findings and imaging findings can be due to the possibility of axonal degeneration as well as plastic reorganization. Objective: The purpose of the present investigation of six cases was to identify auditory, cognitive and neuroimaging long-term sequelae of closed head injury (CHI) with particular focus on environmental sound recognition and moving sound sources. Subjects and methods: Six subjects who had experienced CHI were investigated with auditory tests. Four subjects also completed cognitive testing. CT and MRI were performed. Results: There was a large individual variability of the test results with respect to morphological findings. In five cases with central auditory processing disorders morphological brain damage was demonstrated. Two cases with shortcomings on cognitive testing and with frontal brain lesions demonstrated problems in determining the direction of movement of a sound source. The results may indicate that basal frontal lobe structures play a role in following and determining the direction of movement of a sound source. Two cases had problems with environmental sound recognition; in one left temporal brain lesions were demonstrated.

  • 38.
    Bergemalm, P.-O.
    et al.
    Ahlsèn Research Institute, Örebro University Hospital, S-701 85 Örebro, Sweden, ENT Department, Lindesberg County Hospital, Lindesberg, Sweden.
    Lyxell, Björn
    Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutionen för beteendevetenskap och lärande. Östergötlands Läns Landsting, Rekonstruktionscentrum, Öronkliniken US.
    Appearances are deceptive? Long-term cognitive and central auditory sequelae from closed head injury2005Ingår i: International Journal of Audiology, ISSN 1499-2027, E-ISSN 1708-8186, Vol. 44, nr 1, s. 39-49Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The purpose of the present study was to examine possible signs of long-term cognitive and/or central auditory sequelae seven to eleven years after a closed head injury (CHI) of sufficient severity to cause scull fracture and/or brain contusion. Another purpose was that this investigation should be carried out in a group of recovered trauma victims with, to the individual, no known or minimal sequelae. A computer-based set of five cognitive tests and three central auditory tests were used in a group of formerly brain-injured patients who considered themselves as well recovered. Most of the participants did not report any signs of cognitive or auditory impairment. Tests of working memory capacity, verbal information processing speed, phonological processing and verbal inference-making ability were used. Auditory brain response (ABR), distorted speech audiometry (interrupted speech), and phase audiometry were used to test central auditory function. The initial severity of brain damage, i.e. status when the patient arrived at the emergency ward, was estimated with Swedish Reaction Level Scale (RLS). Cognitive shortcomings after CHI were demonstrated in a high percentage (59%, 13/22) of the cases seven to eleven years after the injury. Central auditory processing disorders (APD) were also demonstrated in a fairly high percentage (58%, 11/19) of the subjects. None of the correlations between RLS and the results on cognitive and central auditory tests reached statistical significance. However, there was a correlation between cognitive performance and the results on the central auditory tests used in this investigation. Eighty percent (8/10) of those participants with pathologies on ABR and/or phase audiometry and/or IS also failed on one or more of the cognitive tasks, compared to 44% (4/9) among those with no signs of APD. It is possible, many years after CHI, to observe cognitive shortcomings and APD in a relatively high percentage of CHI cases that are subjectively considered to be fairly well recovered. The cognitive tasks used in the study have proved to be a sensitive method to discover cognitive impairments. Long-term cognitive sequelae and APD could not be predicted from RLS scores. © 2005 British Society of Audiology, International Society of Audiology, and Nordic Audiological Society.

  • 39.
    Bergendal, Birgitta
    et al.
    Institute Postgrad Dent Educ, Natl Oral Disabil Centre, SE-55111 Jonkoping, Sweden Umea University, Fac Med, Department Odontol, Umea, Sweden .
    McAllister, Anita
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Logopedi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Öronkliniken US.
    Stecksen-Blicks, Christina
    Umea University, Fac Med, Department Odontol, Umea, Sweden .
    Orofacial dysfunction in ectodermal dysplasias measured using the Nordic Orofacial Test-Screening protocol2009Ingår i: ACTA ODONTOLOGICA SCANDINAVICA, ISSN 0001-6357, Vol. 67, nr 6, s. 377-381Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Objective. To screen orofacial function in people with various ectodermal dysplasia (ED) syndromes and compare with a healthy reference sample. Material and methods. The ED group comprised 46 individuals (30 M and 16 F; mean age 14.5 years, range 3-55). Thirty-two had hypohidrotic ED, while 14 had other ED syndromes. The reference sample comprised 52 healthy individuals (22 M and 30 F; mean age 24.9 years, range 3-55). Orofacial function was screened using the Nordic Orofacial Test-Screening (NOT-S) protocol containing 12 orofacial function domains (maximum score 12 points). Results. The total NOT-S score was higher in the ED group than in the healthy group (mean 3.5 vs. 0.4; pandlt;0.001). The dysfunctions most frequently recorded in the subjects with ED occurred in the domains chewing and swallowing (82.6%), dryness of the mouth (45.7%), and speech (43.5%). Those with other ED syndromes scored non-significantly higher than those with hypohidrotic ED (mean 4.6 vs. 3.0; pandgt;0.05). Conclusions. Individuals with ED scored higher than a healthy reference sample in all NOT-S domains, especially in the chewing and swallowing, dryness of the mouth, and speech domains. Orofacial function areas and treatment and training outcomes need to be more closely evaluated and monitored.

  • 40.
    Berggren, Anders
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Avdelningen för kirurgi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Hand- och plastikkirurgiska kliniken US.
    Abdiu, Avni
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Avdelningen för kirurgi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Hand- och plastikkirurgiska kliniken US.
    Marcusson, Agneta
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Käkkliniken. Östergötlands Läns Landsting, Rekonstruktionscentrum, Käkkliniken US.
    Paulin, Gunnar
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Käkkliniken. Östergötlands Läns Landsting, Rekonstruktionscentrum, Käkkliniken US.
    Letter: The nasal alar elevator: An effective tool in the presurgical treatment of infants born with cleft lip2005Ingår i: Plastic and reconstructive surgery (1963), ISSN 0032-1052, E-ISSN 1529-4242, Vol. 115, nr 6, s. 1785-1787Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    [No abstract available]

  • 41.
    Berggren, Magnus
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Hand och plastikkirurgi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Hand- och plastikkirurgiska kliniken US.
    Joost-Davidsson, A
    Lindstrand, J
    Nylander, Göran
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Hand och plastikkirurgi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Hand- och plastikkirurgiska kliniken US.
    Povlsen, B
    Reduction in the need for operation after conservative treatment of osteoarthritis of the first carpometacarpal joint: a seven year prospective study.2001Ingår i: Scandinavian Journal of Plastic and Reconstructive Surgery and Hand Surgery, ISSN 2000-656X, E-ISSN 2000-6764, Vol. 35, s. 415-417Artikel i tidskrift (Refereegranskat)
  • 42.
    Bergkvist, Goran
    et al.
    Malmö University.
    Nilner, Krister
    Malmö University.
    Sahlholm, Sten
    Linköpings universitet, Institutionen för klinisk och experimentell medicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Käkkliniken US.
    Karlsson, Ulf
    Östergötlands Läns Landsting, Rekonstruktionscentrum, Käkkliniken US.
    Lindh, Christina
    Malmö University.
    Immediate Loading of Implants in the Edentulous Maxilla: Use of an Interim Fixed Prosthesis Followed by a Permanent Fixed Prosthesis: A 32-Month Prospective Radiological and Clinical Study2009Ingår i: Clinical Implant Dentistry and Related Research, ISSN 1523-0899, E-ISSN 1708-8208, Vol. 11, nr 1, s. 1-10Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The aim of this study was to prospectively evaluate the survival rate of splinted and immediately loaded Straumann sandblasted, large-grit, acid-etched, solid-screw dental implants in the edentulous maxilla after 32 months of loading.

    Twenty-eight patients (mean age 63 years) with edentulous maxillae received 168 implants (six each) and an implant-supported fixed interim prosthesis within 24 hours after surgery. After a mean healing time of 15 weeks, the patients received permanent screw-retained prostheses. Clinical and radiological examinations were made at implant placement and after 8, 20, and 32 months of loading. All permanent prostheses were removed at the 32-month follow-up; implant stability was checked with a torque device, and the implant stability quotient was determined with resonance frequency analysis.

    Mean marginal bone loss from baseline to 8 months after loading was 1.6 mm (SD 1.16; p = .094), from 8 to 20 months 0.41 mm (SD 0.63; p = .094), and from 20 to 32 months 0.08 mm (SD 0.49; p = .039). The 32-month cumulative survival rate was 98.2%.

    The 32-month survival of solid-screw implants - immediately loaded within 24 hours after placement - was similar to survival rates reported for solid-screw implants with conventional loading. Immediate loading and splinting of implants in the edentulous maxilla is a viable treatment alternative.

  • 43. Bergkvist, Göran
    et al.
    Sahlholm, Sten
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Käkkliniken. Östergötlands Läns Landsting, Rekonstruktionscentrum, Käkkliniken US.
    Karlsson, Ulf
    Nilner, Krister
    Lindh, Christina
    Immediately loaded implants supporting fixed prostheses in the edentulous maxilla: A preliminary clinical and radiologic report2005Ingår i: International Journal of Oral & Maxillofacial Implants, ISSN 0882-2786, E-ISSN 1942-4434, Vol. 20, nr 3, s. 399-405Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Purpose: To evaluate the survival rate of immediately loaded ITI sand-blasted, large-grit, acid-etched (SLA) solid-screw dental implants in the edentulous maxilla after 8 months of loading. Materials and Methods: Twenty-eight patients (mean age 63 years) with edentulous maxillae each received 6 implants and 1 implant-supported fixed provisional prosthesis within 24 hours after surgery. After a mean healing time of 15 weeks, the patient received a definitive, screw-retained, implant-supported fixed prosthesis. A total of 168 implants were placed. Clinical parameters were registered after 1 month of loading with the implant-supported fixed prostheses as well as 8 months after implant place ment. Radiologic examinations and assessments were made at implant placement and after 8 months. Results: The mean marginal bone level at implant placement was 1.6 mm (range 0 to 5.1, SD 1.1) apical of the reference point (the implant shoulder). The mean marginal bone level at the 8-month follow-up was 3.2 mm (range 0.4 to 5.9, SD 1.1) apical of the reference point. Three implants failed during the healing period. Discussion: The improved results in the present study might be a result of the positive effect of splinting the implants immediately after placement Conclusion: ITI SLA solid-screw implants immediately loaded (ie, loaded within 24 hours of placement) and supporting fixed prostheses had successful survival rates after 8 months. The present results constitute a solid base line for future follow-up studies.

  • 44.
    Bergkvist, Göran
    et al.
    Chonbuk National University.
    Sahlholm, Sten
    Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Käkkirurgi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Käkkliniken.
    Klintström, Eva
    Linköpings universitet, Institutionen för medicin och hälsa, Medicinsk radiologi. Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Centrum för medicinsk bildvetenskap och visualisering, CMIV. Östergötlands Läns Landsting, Bildmedicinskt centrum, Röntgenkliniken i Linköping.
    Lindh, Christina
    Malmö University.
    Bone Density at Implant Sites and Its Relationship to Assessment of Bone Quality and Treatment Outcome2010Ingår i: INTERNATIONAL JOURNAL OF ORAL and MAXILLOFACIAL IMPLANTS, ISSN 0882-2786, Vol. 25, nr 2, s. 321-328Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Purpose: To investigate the relationship between bone mineral density (BMD) before implant placement, implant stability measures at implant placement, and marginal bone loss of immediately loaded implants after 1 year in situ. Materials and Methods: Consecutively recruited patients received Straumann SLActive implants loaded with fixed provisional prostheses within 24 hours. BMD was measured from computed tomographic images before implant placement. Alveolar bone quality was assessed during surgery. Implant stability-both rotational and as measured with resonance frequency analysis- and marginal bone height were assessed at implant placement and after 1 year. The Pearson correlation coefficient was used to calculate correlations, and significance was considered when P andlt; .05. Results: Twenty-one patients received 137 implants (87 in maxillae and 50 in mandibles). BMD was significantly correlated with bone quality classification in both arches (P andlt; .001). Mean BMD was also significantly correlated with stability values (P andlt; .001). Mean marginal bone loss at implant surfaces differed, but not significantly, at the 1-year follow-up, regardless of BMD values (P = .086) and measured stability (rotational stability P = .34, resonance frequency analysis P = .43) at implant placement. Conclusion: Within the limits of this study, it can be concluded that computed tomographic examination can be used as a preoperative method to assess jawbone density before implant placement, since density values correlate with prevailing methods of measuring implant stability. However, in the short time perspective of 1 year, there were no differences in survival rates or changes in marginal bone level between implants placed in bone tissue of different density.

  • 45. Bergkvist, Göran
    et al.
    Sahlmholm, Sten
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Käkkliniken. Östergötlands Läns Landsting, Rekonstruktionscentrum, Käkkliniken US.
    Nilner, Krister
    Lindh, Christina
    Implant-supported fixed prostheses in the edentulous maxilla. A 2-year clinical and radiological follow-up of treatment with non-submerged ITI implants2004Ingår i: Clinical Oral Implants Research, ISSN 0905-7161, E-ISSN 1600-0501, Vol. 15, s. 351-359Artikel i tidskrift (Refereegranskat)
  • 46.
    Bergström, Aileen
    et al.
    Department of Occupational Therapy, Uppsala University Hospital, Uppsala Sweden.
    Samuelsson, Kersti
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Rehabiliteringsmedicin. Östergötlands Läns Landsting, Rekonstruktionscentrum, Rehabiliteringsmedicinska kliniken US.
    Evaluation of manual wheelchairs by individuals with spinal cord injuries2006Ingår i: Disability and Rehabilitation: Assistive Technology, ISSN 1748-3107, E-ISSN 1748-3115, Vol. 1, nr 3, s. 175-182Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Purpose. The aim of this study was to investigate how adults with spinal cord injury assess their satisfaction regarding various aspects and use of their manual wheelchair. Method. The Quebec User Evaluation of Satisfaction with Assistive Technology (QUEST 2.0) together with seven additional questions was sent to 205 adults with SCI. Results. One hundred and twenty-four responses were available. The QUEST 2.0 showed a high level of satisfaction with manual wheelchair properties. However, the respondents were less satisfied with the services offered. Ease of use and comfort were identified as most important. Eighty-nine percent of the respondents rated their level of satisfaction as 'quite satisfied' or 'very satisfied' in ease of using a manual wheelchair compared with 68% of the respondents that were 'quite satisfied' or 'very satisfied' with the level of comfort. A greater satisfaction of ease in propulsion indoors compared with sitting comfort in various activities was found. Conclusions. A discrepancy was shown between users not being as satisfied with comfort in sitting in various activities as opposed to satisfaction with propulsion. This indicates the need for increased knowledge and developments concerning individual solutions, incorporating comfort as well as ease of use of a manual wheelchair.

  • 47. Berkenstam, Anders
    et al.
    Kristensen, Jens
    Mellström, Karin
    Carlsson, Bo
    Malm, Johan
    Rehnmark, Stefan
    Garg, Neeraj
    Andersson, Carl Magnus
    Rudling, Mats
    Sjöberg, Folke
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Brännskadevård. Östergötlands Läns Landsting, Rekonstruktionscentrum, Hand- och plastikkirurgiska kliniken US.
    Angelin, Bo
    Baxter, John D.
    The thyroid hormone mimetic compound KB2115 lowers plasma LDL cholesterol and stimulates bile acid synthesis without cardiac effects in humans2008Ingår i: Proceedings of the National Academy of Sciences of the United States of America, ISSN 0027-8424, E-ISSN 1091-6490, Vol. 105, nr 2, s. 663-667Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Atherosclerotic cardiovascular disease is a major problem despite the availability of drugs that influence major risk factors. New treatments are needed, and there is growing interest in therapies that may have multiple actions. Thyroid hormone modulates several cardiovascular risk factors and delays atherosclerosis progression in humans. However, use of thyroid hormone is limited by side effects, especially in the heart. To overcome this limitation, pharmacologically selective thyromimetics that mimic metabolic effects of thyroid hormone and bypass side effects are under development. In animal models, such thyromimetics have been shown to stimulate cholesterol elimination through LDL and HDL pathways and decrease body weight without eliciting side effects. We report here studies on a selective thyromimetic [KB2115, (3-[[3,5-dibromo-4- [4-hydroxy-3-(1-methylethyl)-phenoxy]-phenyl]-amino]-3-oxopropanoic acid)] in humans. In moderately overweight and hypercholesterolemic subjects KB2115 was found to be safe and well tolerated and elicited up to a 40% lowering of total and LDL cholesterol after 14 days of treatment. Bile acid synthesis was stimulated without evidence of increased cholesterol production, indicating that KB2115 induced net cholesterol excretion. KB2115 did not provoke detectable effects on the heart, suggesting that the pharmacological selectivity observed in animal models translates to humans. Thus, selective thyromimetics deserve further study as agents to treat dyslipidemia and other risk factors for atherosclerosis. © 2007 by The National Academy of Sciences of the USA.

  • 48. Bernsen, Monique R
    et al.
    Smetsers, Toon
    van der Westerlo, Els
    Ruiter, Dirk
    Håkansson, Leif
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Onkologi. Östergötlands Läns Landsting, Kirurgi- och onkologicentrum, Onkologiska kliniken US.
    Gustafsson, Bertil
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Patologi. Östergötlands Läns Landsting, Laboratoriemedicinskt centrum, Klinisk patologi och klinisk genetik.
    van Kuppevelt, Toin
    Krysander, Lennart
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Hand och plastikkirurgi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Hand- och plastikkirurgiska kliniken US.
    Rettrup, Björn
    Håkansson, Annika
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Onkologi. Östergötlands Läns Landsting, Kirurgi- och onkologicentrum, Onkologiska kliniken US.
    Heparan sulphate epitope-expression is associated with the inflammatory response in metastatic malignant melanoma2003Ingår i: Cancer Immunology and Immunotherapy, ISSN 0340-7004, E-ISSN 1432-0851, Vol. 52, nr 12, s. 780-783Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Heparan sulphate (HS) represents a heterogeneous class of molecules on cell membranes and extracellular matrices. These molecules are involved in a variety of biological processes, including immune responses, through their binding and functional modulation of proteins. Recently a panel of HS-epitope-specific, human single chain antibodies have been generated by phage display, facilitating analysis of the structural heterogeneity of HS in relation to pathological conditions. In a pilot study a heterogeneous staining pattern in melanoma metastases was observed with one of the clones (EW4G1). Using a double-staining technique, the expression of this epitope was studied in 12 metastatic melanoma lesions in relation to the presence of a CD3 + cell infiltrate. Different staining patterns with EW4G1 were observed in the different lesions. The different staining patterns were associated with the presence and pattern of inflammation with CD3+ cells. A pronounced staining pattern of blood vessels with EW4G1 was associated with a more or less brisk presence of CD3+ cells, while a pronounced staining of tumour cells or tumour cell matrix or absence of staining with EW4G1 was associated with absence of CD3+ cells. These results suggest a dualistic role for HS in the recruitment and intratumoural migration of CD3+ cells, depending on the location of expression of its epitope recognized by EW4G1. Further characterization of the structural diversity of HS and its function in T-cell recruitment and migration is therefore warranted, since detailed understanding of this relation may provide new targets for therapeutic intervention, such that better homing and migration of T cells (in)to tumours might be achieved in immunologically based treatment strategies.

  • 49. Bernsen, MR
    et al.
    Håkansson, Leif
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Onkologi. Östergötlands Läns Landsting, Kirurgi- och onkologicentrum, Onkologiska kliniken US.
    Gustafsson, Bertil
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Patologi. Östergötlands Läns Landsting, Laboratoriemedicinskt centrum, Klinisk patologi och klinisk genetik.
    Krysander, Lennart
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Hand och plastikkirurgi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Hand- och plastikkirurgiska kliniken US.
    Rettrup, B
    Ruiter, D
    Håkansson, Annika
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Onkologi. Östergötlands Läns Landsting, Kirurgi- och onkologicentrum, Onkologiska kliniken US.
    On the biological relevance of MHC class II and B7 expression by tumour cells in melanoma metastases2003Ingår i: British Journal of Cancer, ISSN 0007-0920, E-ISSN 1532-1827, Vol. 88, nr 3, s. 424-431Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A large number of studies have indicated that specific immune reactivity plays a crucial role in the control of malignant melanoma. In this context, expression of MHC I, MHC II and B7 molecules by melanoma cells is seen as relevant for the immune response against the tumour. For a better understanding of the biological relevance of MHC II and B7 expression by tumour cells in metastatic melanoma, we studied the expression of these molecules in melanoma metastases in relation to the inflammatory response, regression of the tumour and survival from 27 patients treated with biochemotherapy (30 mg m-2 Cisplatin and 250 mg m-2 decarbazine (dimethyl-triazene-imidazole-carboxamide, DTIC) on days 1-3 i.v., and 107 IU IFN-a2b 3 days a week s.c., q. 28d). In 19 out of 27 lesions studied, we found expression of MHC II by the tumour cells, while only in one out of II tumour biopsies obtained from untreated metastatic melanoma patients, MHC II expression was detected. Expression of B7.1 and B7.2 by tumour cells was found in nine out of 24 and 19 out of 24 lesions, respectively. In all cases where B7.1 expression was found, expression of B7.2 by the tumour cells was also seen. In general, no or only few inflammatory cells positive for B7 were found. Expression of MHC II by tumour cells was positively correlated with the presence of tumour-infiltrating lymphocytes, regression of the lesion, and with time to progression (TTP) and overall survival (OS) of the patient. However, no significant correlation between B7.1 or B7.2 expression and regression of the tumour, TTP or OS was found. In light of other recent findings, these data altogether do support a role as biomarker for MHC II expression by tumour cells, however, its exact immunological pathomechanism(s) remain to be established. ⌐ 2003 Cancer Research UK.

  • 50.
    Bobinski, L
    et al.
    Neurokirurgisk klinik Rekonstruktionscentrum.
    Boström, Sverre
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Neurokirurgi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Neurokirurgiska kliniken US.
    Hillman, Jan
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Neurokirurgi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Neurokirurgiska kliniken US.
    Theodorsson, Annette
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Avdelningen för klinisk kemi. Östergötlands Läns Landsting, Rekonstruktionscentrum, Neurokirurgiska kliniken US.
    Postoperative pseudoaneurysm of the superficial temporal artery (S.T.A.) treated with Thrombostat® (thrombin glue) injection2004Ingår i: Acta Neurochirurgica, ISSN 0001-6268, E-ISSN 0942-0940, Vol. 146, nr 9, s. 1039-1041Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background. Pseudo-aneurysm is a rare complication of craniotomy. Blunt injury to the temporal artery region is the usual cause, but still a rare complication. Clinical presentation. A patient with subarachnoid hemorrhage was successfully treated by aneurysm clipping. The patient developed hydrocephalus, and was admitted for a shunt operation seventeen days later. The craniotomy had healed normally, but a palpable temporal lump was present in the skin incision. Intervention. The pulsating mass proved to be a postoperative aneurysm of the superficial temporal artery (S.T.A.) and was successfully occluded with 500 units Thrombostat® (thrombin glue) which was injected into the aneurysm sac using a 22-gauge needle guided by ultrasound. The permanency of the obliteration was verified by ultrasound examination.

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