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  • 1.
    Ahlmén, M
    et al.
    SU.
    Nordenskiöld, U
    SU.
    Archenholtz, B
    SU.
    Thyberg, Ingrid
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Rönnqvist, R
    KI.
    Lindén, L
    KI.
    Andersson, A-K
    Mannerkorpi, K
    Rheumatology outcomes: The patient's perspective. A multicentre focus group interview study of Swedish rheumatoid arthritis patients2005Inngår i: Rheumatology, ISSN 1462-0324, E-ISSN 1462-0332, Vol. 44, nr 1, s. 105-110Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objectives. Patients with rheumatoid arthritis (RA) and clinicians have different views about benefits from treatments. More knowledge is needed about how patients assess outcomes in order to update current measurements. Methods. Focus group interviews were performed at four Swedish rheumatology clinics. A total of 25 patients with RA were included, representing a wide range of ages and disease duration. Predetermined topics relating to important outcomes from and satisfaction/dissatisfaction with RA treatments were discussed. Results. The participants' initial outcome assessments included physical and psychosocial items, which comprised overall treatment goals such as impairment in social roles, fatigue, daily activities and self-confidence. The identified themes were 'Normal life', 'Physical capacity', 'Independence' and 'Well-being'. Satisfaction with treatment was associated with the quality of communication between staff and the patient. The participants assumed this as a prerequisite for a treatment to work. Patients wanted to be accepted as experts on their own bodies, and expected all clinicians to be experts on RA. This made it possible for patients to 'take charge' of their life situation. Good resources for and access to rheumatology care were desired. Conclusions. Suggesting a holistic approach to rheumatology care, the study results indicate that the illness and outcomes have to be evaluated within an individual RA patient's total life situation, described in the identified themes: 'Normal life', 'Physical capacity', 'Independence' and 'Well-being'. Development and validation of measurements covering these issues is suggested. More research is needed about communication and how patients experience their roles in the rheumatology clinic.

  • 2.
    Almroth, Gabriel
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för medicin och vård, Njurmedicin. Östergötlands Läns Landsting, Medicincentrum, Njurmedicinska kliniken US.
    Eriksson, Per
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Berlin, G
    Andersson, B
    Hahn-Zoric, M
    Långtidsresultat av cyklofosfamidbehandling vid ANCA-associerad systemisk vaskulit med njurengagemang2004Inngår i: Svenska Läkaresällskapets,2004, 2004Konferansepaper (Annet vitenskapelig)
  • 3.
    Almroth, Gabriel
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för medicin och vård, Njurmedicin. Östergötlands Läns Landsting, Medicincentrum, Njurmedicinska kliniken US.
    Eriksson, Per
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Berlin, G
    Hahn-Zoric, M
    Andersson, B
    Cyklophosphamide pulse treatment and infections in systemic vasculitis with renal involvement2004Inngår i: JASN 15 2004,2004, 2004Konferansepaper (Annet vitenskapelig)
  • 4. Anfelter, P
    et al.
    Granerus, Göran
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för medicin och vård, Klinisk fysiologi. Östergötlands Läns Landsting, Hjärtcentrum, Fysiologiska kliniken.
    Stenström, Hugo
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för medicin och vård, Medicinsk radiologi. Östergötlands Läns Landsting, Bildmedicinskt centrum, Avdelningen för radiologi US.
    Eriksson, Per
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Nyström, Fredrik
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för medicin och vård, Internmedicin. Östergötlands Läns Landsting, Medicincentrum, Endokrin- och magtarmmedicinska kliniken US.
    The effect of percutaneous dilatation of renal arterial stenosis on captopril renography in hypertension2005Inngår i: Blood Pressure, ISSN 0803-7051, E-ISSN 1651-1999, Vol. 14, nr 6, s. 359-365Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background. The clinical effects of percutaneous transluminal renal artery angioplasty (PTRA) in patients with renal vascular stenosis and hypertension is controversial. Methods. We consecutively recruited all 23 patients referred for evaluation of renovascular hypertension that eventually underwent unilateral PTRA, to be investigated with captopril MAG3 renography (CR), both before and after the endovascular procedure. Data were evaluated on an intention-to-treat basis. Results. We found that the relative MAG3 clearance of the stenotic kidney increased (from 29.9 ± 14% to 35.1 ± 14%, p=0.01) and that the creatinine levels fell following the intervention (from 110 ± 19 to 99 ± 17 μmol/l, p=0.0003). Blood pressure levels were also lowered (from 173 ± 32/93 ± 17 to 158 ± 31/86 ± 15 mmHg, p<0.006) while the mean number of anti-hypertensive drugs was unchanged following PTRA (2.9 ± 1.4 before and 2.8 ± 1.3 drugs after the intervention, respectively, p-0.6). Conclusion. This prospective trial showed statistically significant improvements of individual kidney function as measured by CR and blood pressure in subjects with suspected renovascular hypertension treated with PTRA. Although the endovascular procedure was found to be safe, the magniture of the absolute improvements was rather modest. © 2005 Taylor & Francis.

  • 5. Askling, J
    et al.
    Fored, CM
    Baecklund, E
    Brandt, L
    Backlin, C
    Ekbom, A
    Sundström, C
    Bertilsson, L
    Cöster, Lars
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Geborek, P
    Jacobsson, Lt
    Lindblad, S
    Lysholm, J
    Rantapää-Dahlqvist, S
    Saxne, T
    Klareskog, L
    Feltelius, N
    Haematopoietic malignancies in rheumatoid arthritis: Lymphoma risk and characteristics after exposure to tumour necrosis factor antagonists2005Inngår i: Annals of the Rheumatic Diseases, ISSN 0003-4967, E-ISSN 1468-2060, Vol. 64, nr 10, s. 1414-1420Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background: Patients with rheumatoid arthritis (RA) are at increased risk of malignant lymphomas, and maybe also of leukaemia and multiple myeloma. The effect of tumour necrosis factor (TNF) antagonists on lymphoma risk and characteristics is unclear. Objective: To assess expected rates and relative risks of haematopoietic malignancies, especially those associated with TNF antagonists, in large population based cohorts of patients with RA. Methods: A population based cohort study was performed of patients with RA (one prevalent cohort (n = 53 067), one incident cohort (n = 3703), and one TNF antagonist treated cohort 1999 through 2003 (n = 4160)), who were linked with the Swedish Cancer Register. Additionally, the lymphoma specimens for the 12 lymphomas occurring in patients with RA exposed to TNF antagonists in Sweden 1999 through 2004 were reviewed. Results: Study of almost 500 observed haematopoietic malignancies showed that prevalent and incident patients with RA were at increased risk of lymphoma (SIR =1.9 and 2.0, respectively) and leukaemia (SIR = 2.1 and 2.2, respectively) but not of myeloma. Patients with RA treated with TNF antagonists had a tripled lymphoma risk (SIR = 2.9) compared with the general population. After adjustment for sex, age, and disease duration, the lymphoma risk after exposure to TNF antagonists was no higher than in the other RA cohorts. Lymphomas associated with TNF antagonists had characteristics similar to those of other RA lymphomas. Conclusion: Overall, patients with RA are at equally increased risks for lymphomas and leukaemias. Patients with RA treated with TNF antagonists did not have higher lymphoma risks than other patients with RA. Prolonged observation is needed to determine the long term effects of TNF antagonists on lymphoma risk.

  • 6. Askling, J
    et al.
    Fored, CM
    Brandt, L
    Baecklund, E
    Bertilsson, L
    Feltelius, N
    Cöster, Lars
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Geborek, P
    Jacobsson, LT
    Lindblad, S
    Lysholm, J
    Rantapää-Dahlqvist, S
    Saxne, T
    Klareskog, L
    Risks of solid cancers in patients with rheumatoid arthritis and after treatment with tumour necrosis factor antagonists2005Inngår i: Annals of the Rheumatic Diseases, ISSN 0003-4967, E-ISSN 1468-2060, Vol. 64, nr 10, s. 1421-1426Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background: Existing studies of solid cancers in rheumatoid arthritis (RA) reflect cancer morbidity up until the early 1990s in prevalent cohorts admitted to hospital during the 1980s. Objective: To depict the cancer pattern of contemporary patients with RA, from updated risk data from prevalent and incident RA populations. To understand the risk of solid cancer after tumour necrosis factor (TNF) treatment by obtaining cancer data from cohorts treated in routine care rather than trials. Methods: A population based study of three RA cohorts (one prevalent, admitted to hospital 1990-2003 (n = 53 067), one incident, diagnosed 1995-2003 (n = 3703), and one treated with TNF antagonists 1999-2003 (n = 4160)), which were linked with Swedish nationwide cancer and census registers and followed up for cancer occurrence through 2003. Results: With 3379 observed cancers, the prevalent RA cohort was at marginally increased overall risk of solid cancer, with 20-50% increased risks for smoke related cancers and +70% increased risk for non-melanoma skin cancer, but decreased risk for breast (-20%) and colorectal cancer (-25%). With 138 cancers, the incident RA cohort displayed a similar cancer pattern apart from non-decreased risks for colorectal cancer. TNF antagonist treated patients displayed solid cancer (n = 67) risks largely similar to those of other patients with RA. Conclusion: The cancer pattern in patients treated with TNF antagonists mirrors those of other contemporary as well as historic RA cohorts. The consistent increase in smoking associated cancers in patients with RA emphasises the potential for smoking cessation as a cancer preventive measure in RA.

  • 7. Askling, J
    et al.
    Fored, CM
    Brandt, L
    Baecklund, E
    Bertilsson, L
    Feltelius, N
    Cöster, Lars
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Geborek, P
    Jacobsson, LT
    Lindblad, S
    Lysholm, J
    Rantapää-Dahlqvist, S
    Saxne, T
    van Vollenhoven, RF
    Klareskog, L
    Time-dependent increase in risk of hospitalisation with infection among Swedish RA patients treated with TNF antagonists2007Inngår i: Annals of the Rheumatic Diseases, ISSN 0003-4967, E-ISSN 1468-2060, Vol. 66, nr 10, s. 1339-1344Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objectives: The degree to which treatment with tumour necrosis factor (TNF) antagonists may be associated with increased risks for serious infections is unclear. An observational cohort study was performed using prospectively collected data from the Swedish Biologics Register (ARTIS) and other national Swedish registers. Methods: First, in the ARTIS, all 4167 rheumatoid arthritis (RA) patients starting TNF antagonist treatment between 1999 and 2003 were identified. Secondly, in the Swedish Inpatient Register, all individuals hospitalised for any reason and who also carried a diagnosis of RA, between 1964 and 2003 (n = 44 946 of whom 2692 also occurred in ARTIS), were identified. Thirdly, in the Swedish Inpatient Register, all hospitalisations listing an infection between 1999 and 2003 were identified. By cross-referencing these three data sets, RRs for hospitalisation with infection associated with TNF antagonist treatment were calculated within the cohort of 44 946 RA patients, using Cox regression taking sex, age, geography, co-morbidity and use of inpatient care into account. Results: Among the 4167 patients treated with TNF antagonists, 367 hospitalisations with infections occurred during 7776 person-years. Within the cohort of 44 496 RA patients, the RR for infection associated with TNF antagonists was 1.43 (95% Cl 1.18 to 1.73) during the first year of treatment, 1.15 (95% Cl 0.88 to 1.51) during the second year of treatment, and 0.82 (95% Cl 0.62 to 1.08) for subjects remaining on their first TNF antagonist treatment after 2 years. Conclusion: Treatment with TNF antagonists may be associated with a small to moderate increase in risk of hospitalisation with infection, which disappears with increasing treatment duration.

  • 8. Askling, Johan
    et al.
    Fored, Michael
    Brandt, Lena
    Baecklund, Eva
    Bertilsson, Lennart
    Cöster, Lars
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Geborek, Pierre
    Jacobsson, Lennart T
    Lindblad, Staffan
    Lysholm, Jörgen
    Rantapää-Dahlqvist, Solbritt
    Saxne, Tore
    Romanus, Victoria
    Klareskog, Lars
    Feltelius, Nils
    Risk and case characteristics of tuberculosis in rheumatoid arthritis associated with tumor necrosis factor antagonists in Sweden2005Inngår i: Arthritis and Rheumatism, ISSN 0004-3591, E-ISSN 1529-0131, Vol. 52, nr 7, s. 1986-1992Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objective. Because treatment with tumor necrosis factor (TNF) antagonists may increase the risk of tuberculosis (TB), and because knowledge of the risk of TB in rheumatoid arthritis (RA) not treated with biologics is scarce and of uncertain generalizability to low-risk populations, this study sought to determine the risk of TB among Swedish patients with RA. Methods. Using data from Swedish nationwide and population-based registers and data from an ongoing monitoring program of TNF antagonists, the relative risks of TB in patients with RA (versus the general population) and of TB associated with TNF antagonists (versus RA patients not treated with biologics) were determined by comparing the incidence of hospitalization for TB in 3 RA cohorts and 2 general population cohorts from 1999 to 2001. We also reviewed the characteristics of all reported cases of TB in RA patients treated with TNF antagonists in Sweden and calculated the incidence of TB per type of TNF antagonist between 1999 and 2004. Results. During 1999-2001, RA patients who were not treated with TNF antagonists were at increased risk of TB versus the general population (relative risk 2.0, 95% confidence interval [95% CI] 1.2-3.4). RA patients treated with TNF antagonists had a 4-fold increased risk of TB (relative risk 4.0, 95% CI 1.3-12) versus RA patients not treated with TNF antagonists. The reported TB cases during 1999-2004 in RA patients exposed to TNF antagonists (9 infliximab, 4 etanercept, 2 both) were predominantly pulmonary. TB occurred up to 3 years following the start of treatment. Conclusion. Irrespective of whether TNF antagonists are administered, Swedish patients with RA are at increased risk of TB. During 1999-2001, TNF antagonists were associated with an increased risk of TB, up to 4-fold in magnitude. This increased risk may persist over time during treatment and is related to both infliximab and etanercept. © 2005, American College of Rheumatology.

  • 9.
    Aspegren Kendall, Sally
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Rehabiliteringsmedicin. Östergötlands Läns Landsting, Medicincentrum, Smärt- och rehabiliteringscentrum.
    Ekselius, L
    Gerdle, Björn
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Rehabiliteringsmedicin. Östergötlands Läns Landsting, Medicincentrum, Smärt- och rehabiliteringscentrum.
    Sörén, B
    Bengtsson, Ann
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Feldenkrais intervention in fibromyalgia patients: A pilot study2001Inngår i: Journal of Musculoskeletal Pain, ISSN 1058-2452, E-ISSN 1540-7012, Vol. 9, nr 4, s. 25-35Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objectives: To evaluate the effect of the Feldenkrais intervention, in fibromyalgia patients. Methods: Twenty fibromyalgia patients started Feldenkrais intervention done as one individual and two group sessions weekly for 15 weeks. Nineteen started a group-based pain education program followed by a pool program. Test and self-report questionnaires were administered at the start, at six month follow up, and at the end of intervention. Results: After the Feldenkrais intervention improvement in balance and trends to better lower extremity muscle function were shown, but the improvements were not maintained. Conclusions: No sustained benefit of the Feldenkrais intervention compared to a pool program was seen. Methodological problems are discussed. ⌐ 2001 by The Haworth Press, Inc. All rights reserved.

  • 10.
    Aspegren Kendall, Sally
    et al.
    Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Rehabiliteringsmedicin. Östergötlands Läns Landsting, Smärt- och yrkesmedicinskt centrum, Smärt- och rehabiliteringscentrum. Linköpings universitet, Hälsouniversitetet.
    Henriksson, Karl-Gösta
    Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Rehabiliteringsmedicin. Östergötlands Läns Landsting, Medicincentrum, Smärt- och rehabiliteringscentrum. Linköpings universitet, Hälsouniversitetet.
    Hurtig, Ingrid
    Linköpings universitet, Institutionen för medicin och vård, Farmakologi. Linköpings universitet, Hälsouniversitetet.
    Raak, Ragnhild
    Linköpings universitet, Institutionen för medicin och vård, Farmakologi. Linköpings universitet, Hälsouniversitetet.
    Bengtsson, Ann
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet.
    Sören, Birgitta
    Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Rehabiliteringsmedicin. Linköpings universitet, Hälsouniversitetet.
    Wahren, Lis Karin
    Linköpings universitet, Institutionen för medicin och vård, Farmakologi. Linköpings universitet, Hälsouniversitetet.
    Gerdle, Björn
    Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Rehabiliteringsmedicin. Östergötlands Läns Landsting, Medicincentrum, Smärt- och rehabiliteringscentrum. Linköpings universitet, Hälsouniversitetet.
    Differences in sensory thresholds in the skin of women with fibromyalgia syndrome: A comparison between ketamine responders and ketamine non-responders2003Inngår i: Journal of Musculoskeletal Pain, ISSN 1058-2452, E-ISSN 1540-7012, Vol. 11, nr 2, s. 3-9Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objectives: To compare detection and pain thresholds in the skin of female fibromyalgia patients who were either ketamine responders or ketamine nonresponders.

    Methods: Detection thresholds to innocuous warmth, of cold, heat or cold pain, and touch and dynamic touch sensation were determined in the skin. Pressure pain thresholds, local and widespread pain intensity, and pain duration were also registered.

    Results: Ketamine nonresponse was associated with more pronounced hypersensitivity for thermal pain [especially cold pain] than ketamine response.

    Conclusions: Blockade of N-metyl-D-aspartic acid receptors by ketamine and the recording of pain thresholds in the skin, especially for cold pain, might reveal different mechanisms of allodynia.

  • 11.
    Bengtsson, Ann
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    The muscle in fibromyalgia.2002Inngår i: Rheumatology, ISSN 1462-0324, E-ISSN 1462-0332, Vol. 41, s. 721-724Artikkel i tidsskrift (Fagfellevurdert)
  • 12.
    Bengtsson, Ann
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Henriksson, Chris
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Arbetsterapi.
    Henriksson, Karl-Gösta
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Rehabiliteringsmedicin. Östergötlands Läns Landsting, Medicincentrum, Smärt- och rehabiliteringscentrum.
    Fibromyalgi2006Inngår i: Rehabiliteringsmedicin / [ed] Jörgen Borg, Lund: Studentlitteratur , 2006, 1, s. 156-161Kapittel i bok, del av antologi (Annet vitenskapelig)
    Abstract [sv]

    Kapitel om rehabiliteringsmedicinens utveckling och nuvarande plats i sjukvården samt begrepp och metodik inleder boken. I två delar ges därefter rehabiliteringsmedicinska aspekter på de dominerande sjukdomsgrupperna - komplexa smärttillstånd respektive skador och sjukdomar i nervsystemet. Som avslutning beskrivs bland annat  stressrelaterade tillstånd. Läroboken är avsedd för grundutbildning av läkare, arbetsterapeuter och sjukgymnaster, logopeder samt för läkare under AT-tjänstgöring. Den är också lämplig som introduktion i specialistutbildningen i rehabiliteringsmedicin, geriatrik, neurologi och smärtlindring. Vidareutbildningar av olika vårdyrkesgrupper kan ha nytta av boken och den kan också användas som referenslitteratur av yrkesverksamma med intresse för rehabiliteringsmedicin.

  • 13.
    Bengtsson, Torbjörn
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för medicin och vård, Farmakologi.
    Orselius, Kristina
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Medicinsk mikrobiologi.
    Wetterö, Jonas
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi.
    Role of the actin cytoskeleton during respiratory burst in chemoattractant-stimulated neutrophils2006Inngår i: Cell Biology International, ISSN 1065-6995, E-ISSN 1095-8355, Vol. 30, nr 2, s. 154-163Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The aim of this study was to clarify the role of the actin cytoskeleton during chemotactic peptide fMet-Leu-Phe (fMLF)-stimulated respiratory burst in human neutrophil granulocytes. Reactive oxygen species (ROS) was measured as luminol-amplified chemiluminescence (CL) and F-actin content as bodipy phallacidin fluorescence in neutrophils treated with latrunculin B or jasplakinolide, an inhibitor and activator of actin polymerization, respectively. Latrunculin B markedly decreased, whereas jasplakinolide increased, the F-actin content in neutrophils, unstimulated or stimulated with fMLF. Latrunculin B enhanced the fMLF-triggered ROS-production more than tenfold. Jasplakinolide initially inhibited the fMLF-induced CL-response, however, caused a potent second sustained phase (>400% of control). Both actin drugs triggered a substantial CL-response when added 5-25 min after fMLF. This was also valid for chemotactic doses of fMLF, where latrunculin B and jasplakinolide amplified the ROS-production 5-10 times. By using specific signal transduction inhibitors, we found that the NADPH oxidase activation triggered by destabilization of the actin cytoskeleton occurs downstream of phospholipase C and protein kinase C but is mediated by Rho GTPases and tyrosine phosphorylation. In conclusion, rearrangements of the actin cytoskeleton are a prerequisite in connecting ligand/receptor activation, generation of second messengers and assembly of the NADPH oxidase in neutrophil granulocytes. © 2005 International Federation for Cell Biology. Published by Elsevier Ltd. All rights reserved.

  • 14.
    Björk, Mathilda
    et al.
    Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Arbetsterapi. Linköpings universitet, Hälsouniversitetet.
    Thyberg, Ingrid
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet.
    Haglund, Lena
    Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Arbetsterapi. Linköpings universitet, Hälsouniversitetet.
    Skogh, Thomas
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet.
    Hand function in women and men with early rheumatoid arthritis: A prospective study over three years (the Swedish TIRA project)2006Inngår i: Scandinavian Journal of Rheumatology, ISSN 0300-9742, E-ISSN 1502-7732, Vol. 35, nr 1, s. 15-19Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objective: To describe the course of hand function in women and men during the first 3 years after diagnosis of recent-onset rheumatoid arthritis (RA), to investigate sex differences in hand function, and to study correlations between and within hand function assessments.

    Methods: A total of 276 patients (69% women) with RA of a maximal duration of 12 months were recruited to the study. Hand function was assessed by the Grip Ability Test (GAT) and Signals of Functional Impairment (SOFI). Peak and average grip force over 10 s in the right and left hand was measured by an electronic device.

    Results: Hand function was affected at diagnosis, but had improved significantly at the 3-months' follow-up and then remained stable (but still affected) in both women and men. As assessed by SOFI, hand function was worse in men than in women, whereas women had significantly lower grip force. GAT, grip force, and SOFI correlated weakly. The average and peak values of grip force correlated strongly, as did the grip force in the right and the left hand.

    Conclusion: Hand function was profoundly affected at diagnosis of RA, but improved significantly within 3 months and remained stable (but still affected) over 3 years. As expected, women on average had significantly lower grip force than men.

  • 15.
    Björk, Mathilda
    et al.
    Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Arbetsterapi. Linköpings universitet, Hälsouniversitetet. The Vårdal Foundation, The Swedish Institute for Health Sciences.
    Thyberg, Ingrid
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet.
    Skogh, Thomas
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet.
    Gerdle, Björn
    Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Rehabiliteringsmedicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Smärt- och yrkesmedicinskt centrum, Smärt- och rehabiliteringscentrum.
    Hand Function and Activity Limitation According to Health Assessment Questionnaire in Patients with Rheumatoid Arthritis and Healthy Referents: 5-Year Followup of Predictors of Activity Limitation (The Swedish TIRA Project)2007Inngår i: Journal of Rheumatology, ISSN 0315-162X, E-ISSN 1499-2752, Vol. 34, nr 2, s. 296-302Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objective: This study identifies baseline predictors of future activity limitation in rheumatoid arthritis (RA). To reinforce the utility of instruments assessing functional ability/activity limitation, we used reference data from healthy referents.

    Methods: This study includes 189 patients (69% women) with recent-onset RA (onset of joint swelling not more than 12 months at diagnosis) in a prospective cohort ("the Swedish TIRA project") during 27 months from 1996 through 1998. Regular followups were done for a period of 5 years, and 123 healthy persons (50% women) were recruited as referents. Hand function was assessed by the "grip ability test (GAT)" and "signals of functional impairment" (SOFI). Grip force was measured with the electronic device GrippitTM. Activity limitation was assessed with the Swedish version of the Health Assessment Questionnaire (HAQ).

    Results: Throughout the study and for both sexes, GAT, grip force, SOFI-hand, and HAQ were significantly different for the patients compared to healthy referents. In the healthy referents, HAQ was mainly related to age and GAT, whereas in RA HAQ was most obviously linked to grip force. Five years after diagnosis only 8% of HAQ outcome was explained by the baseline measures: HAQ, grip force, SOFI-lower limb, sex, walking speed, and GAT.

    Conclusion: Our study provides valuable reference data for several functional ability and activity limitation measures. The HAQ score was explained by different variables in healthy referents compared to patients with RA. Five years after diagnosis only 8% of HAQ outcome was explained by the variables assessed at inclusion.

  • 16.
    Dahle, Charlotte
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Klinisk immunologi.
    Skogh, Thomas
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Åberg, A K
    Örebro.
    Jalal, A
    Örebro.
    Olcén, Per
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Klinisk mikrobiologi.
    Methods of choice for diagnostic antinuclear antibody (ANA) screening: Benefit of adding antigen-specific assays to immunofluorescence microscopy2004Inngår i: Journal of Autoimmunity, ISSN 0896-8411, E-ISSN 1095-9157, Vol. 22, nr 3, s. 241-248Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objectives. To evaluate and compare the performances of three enzyme-immunoassays (EIAs) and a double radial immunodiffusion (DRID) test in addition to immunofluorescence (IF) microscopy for routine laboratory screening of patient sera sent for antinuclear antibody (ANA) analysis. Methods. 3079 consecutive patient sera sent for routine testing of ANA were analysed by IF microscopy on HEp-2 cells (IF-ANA), three different ANA-EIAs, and a DRID test for antibodies against extractable nuclear antigens. The IF-ANA and DRID tests were regarded as reference methods. Results. By IF-ANA and/or DRID, 375 sera (12%) turned out ANA-positive. A further 171 sera (6%) were positive by EIA, but could not be confirmed either by IF microscopy or DRID. 32 of the 375 ANA-positive (9%) sera were negative by IF microscopy, but had precipitating antibodies against Ro/SS-A (52 and/or 60 kD). Conclusions. Different assays for ANA analysis give overlapping results to a certain extent, but are by no means interchangeable. Thus, different ANA tests reflect different aspects of these autoantibodies. The diagnostic utility of ANA testing still mainly refers to IF-microscopy and precipitin tests. IF-ANA should not be abandoned as the golden standard in clinical routine, until diagnostic and classification criteria for systemic lupus erythematosus and other systemic inflammatory autoimmune diseases have been revised. However, in addition we strongly advocate that a specific test for anti-Ro/SS-A antibodies is always included.

  • 17.
    Eriksson, Per
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi.
    Nine patients with anti-neutrophil cytoplasmic antibody-positive vasculitis successfully treated with rituximab2005Inngår i: Journal of Internal Medicine, ISSN 0954-6820, E-ISSN 1365-2796, Vol. 257, nr 6, s. 540-548Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objectives. Rituximab (RIT) is a monoclonal anti-CD20 antibody, which depletes B-lymphocytes but not plasma cells. RIT is used for treatment of B-cell lymphomas, but has also shown beneficial effects in autoimmune diseases. In this case series RIT was used in anti-neutrophil cytoplasmic antibody (ANCA)-positive vasculitis. Design. Case series with a structured follow-up of treated patients. Setting. Departments of Nephrology and Rheumatology of a university hospital. Subjects. Two women with myeloperoxidase-ANCA-positive microscopic polyangiitis and seven patients (five men and two women) with proteinase 3-ANCA-positive Wegener's granulomatosis. All patients were resistant to conventional therapy or had relapsed repeatedly after cessation of cyclophosphamide (Cyc). Interventions. The cases were treated with intravenous infusions of RIT once a week two times (three cases) or four times (six cases). To prevent formation of antibodies to RIT, mycophenolate mofetil (five patients), azathioprine (one patient), or a short course of Cyc (two patients) were added or allowed to continue. Mainoutcome measures. Remission at 6 months assessed with Birmingham vasculitis activity score. The cases were followed 6-24 months and relapse rate was also noted. Results. Eight of nine patients responded completely and one case responded partially. Pulmonary X-ray improved (four cases), progress of lower extremity gangrene stopped (one case), remission of neuropathy was stable (one patient), renal vasculitis went into remission (two cases), and severe musculoskeletal pain improved (one case). Minor relapse in the nose occurred in two cases. No adverse events or major infections were noted. Conclusion. RIT seems promising and safe in ANCA-positive vasculitis, and controlled studies should be conducted. © 2005 Blackwell Publishing Ltd.

  • 18.
    Eriksson, Per
    Linköpings universitet, Institutionen för medicin och vård, Internmedicin. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Linköpings universitet, Institutionen för medicin och vård, Njurmedicin. Linköpings universitet, Institutionen för biomedicin och kirurgi, Urologi. Linköpings universitet, Hälsouniversitetet.
    Renal disease in primary Sjögren's syndrome1996Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    Primary Sjögren's syndrome (SS) is characterised by inflammation in the lacrimal and salivary glands. The kidneys may be involved, e.g. tubulointerstitial nephritis (TIN) and distal renal tubular acidosis (dRTA). dRTA is often associated with hypocitraturia, and both represent risk factors for the development of urolithiasis. The present investigations were undertaken to evaluate renal tubular function (including -dRTA), glomerular filtration rate (GFR), renal histopathology and mechanisms of stone formation, as well as the serum IgG subclass pattern in patients with SS. Furthermore, patients presenting with urolithiasis and dRTA in absence of sicca symptoms, as well as patients with urolithiasis andhypocitraturia, were studied with respect to autoantibodies and clinical features of SS.

    Renal tubular dysfunction, such as dRTA; impaired urine concentrating ability; hypocitraturia; and decreased tubular reabsorption of phosphate (1RP%), was conunonly detected in the SS-patients. Tubular proteinuria (al-microglobulin) and tubular enzymuria (NAG) were primarily associated with decreased GFR.

    GFR, investigated with 5Icr-EDTA plasma clearance, was below the reference limit in 33% of SS-patients. An inverse correlation was found between GFR and the extent of tubulointerstitial nephritis (adjusted CTIN score). Decreased GFR was mostly due to TIN, although urolithiasis and upper urinary tract infections may have contributed in some patients.

    TIN was demonstrated in most biopsied patients with SS, and the histopathological picture was characterised by mainly focal interstitial inflanunation, tubular atrophy, interstitial fibrosis and a varying extent of glomerular sclerosis.

    Fourty-one percent of the SS-patients had formed at least one stone, and calcium phosphate was the main constituent in most stones. All stone formers had dRTA, and most of them had hypocitraturia. Urinary calcium and urate excretion was also significantly higher than in non-stone formers.

    The SS-patients often had low serum levels of IgG2, despite high levels of total IgG. Low levels of IgG2 were sometimes associated with infections. A high IgG lngG2 ratio indicated autoimmune disease.

    Of 10 patients presenting with urolithiasis and dRTA, anti-SS-A antibodies were detected in eight. Subjective sicca symptoms subsequently developed l-48 years after the presentation of urolithiasis, and objective signs of SS were found in 7 patients.

    In a large population of hypocitraturic stone formers, ANA and anti-SS-A antibodies were commonly detected in the women but not in the men. Four of 14 evaluated hypocitraturic women with anti-SS-A antibodies or ANA, fulfilled the criteria for SS.

    In conclusion, the present investigations show that 24-hour urinary excretion of citrate is a valuable tool for detection of renal disease in SS, slightly-moderately decreased GFR is not unusual in SS-patients with. renal disease, the "adjusted CTIN score" can be a useful tool for quantifying the extent of tu'bulointerstitial nephritis, and the urine composition in stone formers with SS is similar to that of other dRT A-patients.

    The possibility of a Sjögren-related renal disease charcterised by urolithiasis and/or dRTA and antibodies to SS-A, regardless of whether subjective sicca symptoms are present or not, is hypothesised.

  • 19.
    Eriksson, Per
    et al.
    Linköpings universitet, Institutionen för medicin och vård, Njurmedicin. Linköpings universitet, Hälsouniversitetet.
    Almroth, Gabriel
    Linköpings universitet, Institutionen för medicin och vård, Njurmedicin. Linköpings universitet, Hälsouniversitetet.
    Denneberg, Torsten
    Linköpings universitet, Institutionen för medicin och vård, Njurmedicin. Linköpings universitet, Hälsouniversitetet.
    Lindström, Folke D.
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet.
    IgG2 deficiency in primary Sjögren's syndrome and hypergammaglobulinemic purpura1994Inngår i: Clinical Immunology and Immunopathology, ISSN 0090-1229, E-ISSN 1090-2341, Vol. 70, nr 1, s. 60-65Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Total IgG and IgG subclasses were studied in 34 patients with primary Sjogren's syndrome and 4 with hypergammaglobulinemic purpura. Total IgG was elevated in 30/34 patients with Sjogren's syndrome. IgG1 increase was responsible for the main part of total IgG increase, contrasting with low levels of IgG2. The difference in IgG1/IgG2 ratio between 38 patients as a group and 40 normal controls was statistically highly significant, but was not seen in all patients. Six patients had markedly low levels of IgG2, but only two had severe repeated respiratory infections. These observations probably reflect selective autoantibody restiction to the IgG1 subclass. We conclude that patients with Sjogren's syndrome may be IgG2 subclass deficient despite elevated levels of total IgG, but also that such deficiency in most instances does not cause a tendency to infections. IgG subclass analysis may be of value to characterize polyclonal IgG increase, since IgG1 subclass predominance often indicates autoimmune disease.

  • 20.
    Eriksson, Per
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi.
    Andersson, Carina
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi.
    Ekerfelt, Christina
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Klinisk immunologi.
    Ernerudh, Jan
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Klinisk immunologi. Östergötlands Läns Landsting, Laboratoriemedicinskt centrum, Klinisk immunologi och transfusionsmedicin.
    Skogh, Thomas
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Relationship between serum levels of IL-18 and IgG1 in patients with primary Sjögren's syndrome, rheumatoid arthritis and healthy controls2004Inngår i: Clinical and Experimental Immunology, ISSN 0009-9104, E-ISSN 1365-2249, Vol. 137, nr 3, s. 617-620Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Primary Sjögren's syndrome (SS) is characterized by inflammation in salivary and lachrymal glands, with a local predominance of Th1-like cytokines, as well as the pleiotropic cytokine interleukin (IL) 18. High serum levels of polyclonal IgG are common, with a subclass imbalance in which IgG1 is increased and IgG2 is normal or low. IL-18 is also of pathogenetic importance in rheumatoid arthritis. In the present study we looked for any relationship between serum IL-18 as well as transforming growth factor (TGF) β1 versus IgA, IgM, and IgG subclass levels in SS (n = 16), rheumatoid arthritis (RA) (n = 15), and healthy controls (n = 15). SS was defined by the revised American-European classification criteria. IL-18 and TGF-β1 were analyzed with enzyme immunoassays (EIA), and IgG1, IgG2 and IgG3 by single radial immunodiffusion. In the composite group of RA, SS and normal controls, IgG1 and IL-18 were related (R = 0.52, P = 0.0005). No relation was found neither between IL-18 versus IgG2, IgG3 or IgA, nor between serum TGF-β1 versus any of the immunoglobulins. Since serum levels of IL-18 are related to serum IgG1, IL-18 may be of importance for IgG1 switch and/or release.

  • 21.
    Eriksson, Per
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi.
    Andersson, Carina
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi.
    Ekerfelt, Christina
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Klinisk immunologi.
    Ernerudh, Jan
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Klinisk immunologi. Östergötlands Läns Landsting, Laboratoriemedicinskt centrum, Klinisk immunologi och transfusionsmedicin.
    Skogh, Thomas
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Sjögren´s syndrome with myalgia is associated with subnormal secretion of cytokines by peripheral blood mononuclear cells.2004Inngår i: Journal of Rheumatology, ISSN 0315-162X, E-ISSN 1499-2752, Vol. 31, s. 729-735Artikkel i tidsskrift (Fagfellevurdert)
  • 22.
    Gerdle, Björn
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Rehabiliteringsmedicin. Östergötlands Läns Landsting, Medicincentrum, Smärt- och rehabiliteringscentrum.
    Björk, Jonas
    Lunds Universitet.
    Henriksson, Chris
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Arbetsterapi.
    Bengtsson, Ann
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Prevalence of current and chronic pain and their influences upon work and healthcare-seeking: A population study2004Inngår i: Journal of Rheumatology, ISSN 0315-162X, E-ISSN 1499-2752, Vol. 31, nr 7, s. 1399-1406Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objective. To investigate the prevalence of current and chronic pain and their relationship to pain intensity, sex, age, income, employment status, citizenship, marital status, urban residence, occupational activity, and healthcare-seeking based on a representative sample from a Swedish county. Methods. A cross-sectional survey using a postal questionnaire was sent to a representative sample (n = 9952) of the target population (284,073 people, age 18-74 yrs) in a county (Östergötland) in southern Sweden. A questionnaire was mailed and followed by 2 postal reminders if necessary. Results. The participation rate was 76.7% (n = 7637), nonparticipants were on average younger, male, and earned less money. The overall point prevalence of pain was 48.9%. The corresponding one-month period prevalence was 63.0%, and pain on several occasions during the previous 3 months was reported by 61.3% of participants. The prevalence of chronic pain (pain > 3 months) was 53.7%. Female sex, age, and sick leave/early retirement were generally of significant importance in the regressions of pain. No sex factor was found in the regressions of pain frequency and pain intensity. Chronic pain - especially frequent and intensive pain - showed clear associations with healthcare-seeking and occupational activity. Conclusion. High prevalence of current pain (48.9%) and chronic pain (53.7%) were found in this community-based study. Being female, older, and on sick leave or early retirement were generally of significant importance in the regressions of pain. Chronic pain showed clear associations with healthcare-seeking and occupational activity, indicating considerable socioeconomic costs.

  • 23.
    Hallert, Eva
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi.
    Husberg, Magnus
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för hälsa och samhälle, Centrum för utvärdering av medicinsk teknologi.
    Skogh, Thomas
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Costs, disease and function in recent-onset rheumatoid arthritis - a 3-year-follow-up (the Swedish TIRA-project)2004Inngår i: Svenska Läkaresällskapets riksstämma,2004, 2004Konferansepaper (Fagfellevurdert)
  • 24.
    Hansson, Kenny
    et al.
    Linköpings universitet, Tekniska högskolan. Linköpings universitet, Institutionen för fysik, kemi och biologi.
    Johansen, Knut
    Linköpings universitet, Tekniska högskolan. Linköpings universitet, Institutionen för fysik, kemi och biologi.
    Wetterö, Jonas
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi.
    Klenkar, Goran
    Linköpings universitet, Tekniska högskolan. Linköpings universitet, Institutionen för fysik, kemi och biologi, Sensorvetenskap och Molekylfysik.
    Benesch, Johan
    Linköpings universitet, Tekniska högskolan. Linköpings universitet, Institutionen för fysik, kemi och biologi.
    Lundström, Ingemar
    Linköpings universitet, Tekniska högskolan. Linköpings universitet, Institutionen för fysik, kemi och biologi, Tillämpad Fysik.
    Lindahl, Tomas
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för biomedicin och kirurgi, Avdelningen för klinisk kemi. Östergötlands Läns Landsting, Laboratoriemedicinskt centrum, Klinisk kemi.
    Tengvall, Pentti
    Linköpings universitet, Tekniska högskolan. Linköpings universitet, Institutionen för fysik, kemi och biologi, Tillämpad Fysik.
    Surface plasmon resonance detection of blood coagulation and platelet adhesion under venous and arterial shear conditions2007Inngår i: Biosensors & bioelectronics, ISSN 0956-5663, E-ISSN 1873-4235, Vol. 23, nr 2, s. 261-268Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A surface plasmon resonance (SPR) based flow chamber device was designed for real time detection of blood coagulation and platelet adhesion in platelet rich plasma (PRP) and whole blood. The system allowed the detection of surface interactions throughout the 6 mm length of the flow chamber. After deposition of thromboplastin onto a section of the sensor surface near the inlet of the flow chamber, coagulation was detected downstream of this position corresponding to a SPR signal of 7 to 8 mRIU (7 to 8 ng/mm2). A nonmodified control surface induced coagulation 3.5 times slower. Platelet adhesion to gold and fibrinogen coated surfaces in the magnitude of 1.25 and 1.66 mRIU was also shown with platelets in buffer, respectively. SPR responses obtained with PRP and whole blood on surfaces that were methylated or coated with von Willebrand factor (vWF), fibrinogen, or collagen, coincided well with platelet adhesion as observed with fluorescence microscopy in parallel experiments. The present SPR detection equipped flow chamber system is a promising tool for studies on coagulation events and blood cell adhesion under physiological flow conditions, and allows monitoring of short-range surface processes in whole blood. © 2007 Elsevier B.V. All rights reserved.

  • 25.
    Henriksson, Chris
    Linköpings universitet, Institutionen för medicin och vård, Omvårdnad. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet.
    Living with fibromyalgia: A study of the consequences for daily activities1995Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    Fibromyalgia (FM) is a chronic generalized muscle pain syndrome. This thesis is a study of 116 patients with FM, twenty living in the USA and the rest in Sweden, all meeting the classification criteria proposed by the American College of Rheumatology, and 39 patients with chronic regio!Jal muscle pain. The purpose was to explore the consequences of the fibromyalgia syndrome for the activities of daily life. The consequences of the syndrome have, been described from the patients' perspective. Data have been collected through different types of questionnaires, 250 semi-structured diaries, and qualitative analysis of 40 semi-structured interviews. A five-year follow-up study was performed to collect data on changes over time in symptoms and psychosocial consequences.

    The results show that the fibromyalgia syndrome influences daily life profoundly. Both pain and muscular fatigue are continuous, though there are changes in severity, both during the day and over longer periods. Most activities are difficult to perform, at least over a prolonged period. The time structure of the day is disrupted and most patients have to adjust habits and roles in order to manage their life situation. There is acontradiction between the level of disability experienced by the patients and their healthy and non-disabled appearance. This leads to misunderstandings and influences the selfimage. The results in this thesis indicate the importance of early intervention, where the patient is given information about the condition and support to adjust to the limitations, thus preventing unnecessary disabilities and handicaps from evolving.

    The comparison between patients with chronic regional muscle pain and fibromyalgia indicates that there is a quantitative, rather than a qualitative, difference between the two conditions.

  • 26. Johansson, AG
    et al.
    Sundqvist, Tommy
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Medicinsk mikrobiologi.
    Skogh, Thomas
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    IgG immune complex binding to and activation of liver cells.1999Inngår i: International Archives of Allergy and Immunology, ISSN 1018-2438, E-ISSN 1423-0097, Vol. 121, s. 329-336Artikkel i tidsskrift (Fagfellevurdert)
  • 27.
    Johansson, AG
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Medicinsk mikrobiologi.
    Sundqvist, Tommy
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Medicinsk mikrobiologi.
    Skogh, Thomas
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    IgG immune complex binding to and activation of liver cells. An in vitro study with IgG immune complexes, Kupffer cells, sinusoidal endothelial cells and hepatocytes2000Inngår i: International Archives of Allergy and Immunology, ISSN 1018-2438, E-ISSN 1423-0097, Vol. 121, nr 4, s. 329-336Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background/Aims: The aim was to study IgG immune complex (IC) binding to isolated hepatocytes, Kupffer cells (KCs) and sinusoidal endothelial cells (SECs). Further, we wished to analyze the capacity of IgG ICs to induce release of reactive oxygen metabolites by the IC-binding liver cells. Methods: ICs were formed between 125I-tyramine-cellobiose-labelled dinitrophenyl-conjugated human serum albumin (125I-TC-DNP10HSA) and polyclonal rabbit IgG antibodies. Binding of ICs to different rat liver cells in suspension was studied at 4░C. Production of reactive oxygen metabolites was measured by luminol-enhanced chemiluminescence at 37░C. Results: IgG mediated binding of 125I-TC-DNP10HSA to both KCs and SECs, but not to hepatocytes. The binding showed saturation kinetics and was blocked by an excess of unlabelled IgG-ICs. IgG-ICs activated KCs, but not SECs, to a chemiluminescence response. Conclusions: Both KCs and SECs bind IgG-ICs in vitro, probably via Fc receptor interaction. IgG-ICs activate KCs to produce reactive oxygen metabolites. The binding of IgG-ICs to isolated hepatocytes is small.

  • 28. Lindblad, S
    et al.
    Bengtsson, Ann
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Nordmark, B
    Teleman, A
    Uddhammar, A
    Vestberg, M
    Vården av nydebuterad reumatoid artrit kan förbättras. 1999Inngår i: Läkartidningen, ISSN 0023-7205, E-ISSN 1652-7518, Vol. 96, s. 2493-2496Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 29.
    Lindström, FD
    et al.
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet.
    Skogh, Thomas
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Lundström, Inger
    Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Käkkirurgi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Rekonstruktionscentrum, Käkkliniken US.
    α1 Antitrypsin deficiency in a patient with systemic vasculitis and primary Sjögren's syndrome2002Inngår i: Annals of the Rheumatic Diseases, ISSN 0003-4967, E-ISSN 1468-2060, Vol. 61, nr 10, s. 945-946Artikkel i tidsskrift (Annet vitenskapelig)
    Abstract [en]

    [No abstract available]

  • 30.
    Lindvall, Björn
    et al.
    Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Neurologi. Linköpings universitet, Hälsouniversitetet.
    Bengtsson, Ann
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet.
    Ernerudh, Jan
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Klinisk immunologi. Linköpings universitet, Hälsouniversitetet.
    Eriksson, Per
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet.
    Subclinical myositis is common in primary Sjögren's syndrome and is not related to muscle pain2002Inngår i: Journal of Rheumatology, ISSN 0315-162X, E-ISSN 1499-2752, Vol. 29, nr 4, s. 717-725Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    OBJECTIVE: Although muscle pain is common in primary Sjögren's syndrome (SS), the underlying mechanisms are mainly unknown. We studied all patients with SS at our rheumatology unit with respect to muscle pain in general and to fibromyalgia (FM), and correlated clinical data to muscle biopsy findings.

    METHODS: We investigated 48 patients with SS according to the modified European diagnostic criteria. The ACR criteria for FM were used to subgroup the patients. Muscle biopsy was performed in 36 patients. Light microscope morphology and immunohistochemical expression of MHC class I, MHC class II, and membrane attack complex (MAC) were studied.

    RESULTS: We found 44% of patients complained of muscle pain; 27% fulfilled the ACR criteria for FM, whereas 17% had other forms of myalgia. Muscle pain could not be related to histopathological findings. Signs of inflammation were found in 26 of 36 biopsies (72%), and inflammation combined with degeneration/regeneration (i.e., histological signs of polymyositis) in 17 biopsies (47%). However, only 5 patients (14%) had clinical as well as histological signs of polymyositis. Eight muscle biopsies (22%) showed histological features of inclusion body myositis (IBM). However, no patient had clinical symptoms suggestive of this disease. Abnormal expression of MHC class I, MHC class II, and MAC was found in 18 (50%), 16 (44%), and 27 (75%) patients, respectively.

    CONCLUSION: Muscle pain, especially FM, is common in SS. Histopathological signs of myositis are very common in SS. However, muscle symptoms are not related to histological signs of muscle inflammation. IBM-like findings may represent vacuolar myopathic degeneration due to previous subclinical muscle inflammation rather than a specific clinical entity.

  • 31.
    Lindvall, Björn
    et al.
    Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Neurologi. Linköpings universitet, Hälsouniversitetet.
    Eriksson, Per
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet.
    Ernerudh, Jan
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Klinisk immunologi. Linköpings universitet, Hälsouniversitetet.
    Inclusion body myopathy in Primary Sjögren's syndrome: clinical and histopathological features in relation to sporadic inclusion body myositisManuskript (preprint) (Annet vitenskapelig)
    Abstract [en]

    Inclusion body myositis (IBM) is a chronic, acquired inflammatory myopathy with typical clinical symptoms and characteristic histopathological features in muscle biopsy. However, there are still uncertainties in diagnostic criteria, implying that disorders of potentially different origin may be classified as IBM. In particular, muscle biopsy findings of vacuolar myopathy in Sjögren's syndrome have indicated an association with IBM, and so far vacuolar Sjögren myopathy is included in the IBM entity.

    We therefore compared clinical and histopathological features in a group of patients with sporadic-IBM (s-IBM, n=11) with a group of patients with primary Sjögren's syndrome (pSS) with IBM-like findings in their muscle biopsies (n=10). Biopsies from s-IBM but not from Sjögren patients stained for Congo-red, whereas no other obvious differences were fonnd concerning morphological or biochemical fmdings of vacuolar content (hyperphosphorylated tau-protein: SMI 31 and SMI 310, ubiquitin, tau-protein, ß-amyloid, ß-amyloid precursor protein). Striking differences were fonnd in the clinical picture, age of onset and gender preponderance (females in pSS and males in s-IBM).

    Based on the different clinical features and the difference in Congo-red staining, we suggest that vacuolar myopathy in pSS should be regarded as a separate entity, not to be included in the classical s-IBM group. IBM-like fmdings in muscle biopsy are observed in different types of systemic inflammatory diseases, and could preferably be designated as autoimmune associated IBM (a-IBM).

  • 32.
    Locht, H
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi.
    Skogh, Thomas
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Kihlström, Erik
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för hälsa och miljö. Östergötlands Läns Landsting, Laboratoriemedicinskt centrum, Klinisk mikrobiologi.
    Anti-lactoferrin antibodies and other types of anti-neutrophil cytoplasmic antibodies (ANCA) in reactive arthritis and ankylosing spondylitis. 1999Inngår i: Clinical and Experimental Immunology, ISSN 0009-9104, E-ISSN 1365-2249, Vol. 117, s. 568-573Artikkel i tidsskrift (Fagfellevurdert)
  • 33. Locht, H
    et al.
    Skogh, Thomas
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Wiik, A
    Characterisation of autoantibodies to neutrophil granule constituents among patients with reactive arthritis, rheumatoid arthritis, and ulcerative colitis.2000Inngår i: Annals of the Rheumatic Diseases, ISSN 0003-4967, E-ISSN 1468-2060, Vol. 59, s. 898-903Artikkel i tidsskrift (Fagfellevurdert)
  • 34.
    Lund, Eva
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för medicin och vård, Radiofysik.
    Kendall, Sally
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Rehabiliteringsmedicin. Östergötlands Läns Landsting, Medicincentrum, Smärt- och rehabiliteringscentrum.
    Janerot-Sjöberg, Birgitta
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för medicin och vård, Klinisk fysiologi. Östergötlands Läns Landsting, Hjärtcentrum, Fysiologiska kliniken.
    Bengtsson, Ann
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Muscle metabolism in fibromyalgia studied by P-31 magnetic resonance spectroscopy during aerobic and anaerobic exercise2003Inngår i: Scandinavian Journal of Rheumatology, ISSN 0300-9742, E-ISSN 1502-7732, Vol. 32, nr 3, s. 138-145Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objective: To investigate mechanisms underlying the reduced work capacity of fibromyalgia (FM) patients were compared to healthy controls at specified workloads, using P-31 magnetic resonance spectroscopy (MRS). Methods: The forearm flexor muscle group was examined with MRS at rest, at sub maximal and at maximal controlled dynamic work as well as at maximal isometric contraction. Aerobic fitness was determined by bicycle ergonometry. Results: Metabolite concentrations and muscle pH were similar for patients and controls at lower workloads. At maximal dynamic and static contractions the concentration of inorganic phosphate was lower and at static contractions the pH decrease was smaller in patients. The performed work by patients was only 50% compared to controls and the patients experienced more pain. Maximal oxygen uptake was lower in the fibromyalgia group. Expired gas-analysis in this group showed ventilatory equivalents at similar relative levels of maximal work capacity. Conclusion: Fibromyalgia patients seem to utilise less of the energy rich phosphorous metabolites at maximal work despite pH reduction. They seemed to be less aerobic fitted and reached the anaerobic threshold earlier than the controls.

  • 35.
    Matthiesen, Leif
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Obstetrik och gynekologi. Östergötlands Läns Landsting, Kirurgi- och onkologicentrum, Kirurgiska kliniken i Östergötland med verksamhet i Linköping, Norrköping och Motala.
    Berg, Göran
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Obstetrik och gynekologi. Östergötlands Läns Landsting, Kirurgi- och onkologicentrum, Kirurgiska kliniken i Östergötland med verksamhet i Linköping, Norrköping och Motala.
    Ernerudh, Jan
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Klinisk immunologi. Östergötlands Läns Landsting, Laboratoriemedicinskt centrum, Klinisk immunologi och transfusionsmedicin.
    Skogh, Thomas
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    A prospective study on the occurrence of autoantibodies in low-risk pregnancies. 1999Inngår i: European Journal of Obstetrics, Gynecology, and Reproductive Biology, ISSN 0301-2115, E-ISSN 1872-7654, Vol. 83, s. 21-26Artikkel i tidsskrift (Fagfellevurdert)
  • 36.
    Nilsson, Bengt-Olof
    et al.
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Infektionsmedicin. Linköpings universitet, Hälsouniversitetet.
    Skogh, Thomas
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Närsjukvården i centrala Östergötland, Länskliniken för Reumatologi i Östergötland.
    Ernerudh, Jan
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Klinisk immunologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Laboratoriemedicinskt centrum, Klinisk immunologi och transfusionsmedicin.
    Johansson, Boo
    Department of Psychology, Göteborg University, Göteborg, Sweden.
    Löfgren, Sture
    Department of Microbiology, Ryhov Hospital, Jönköping, Sweden.
    Wikby, Anders
    Institute of Gerontology, School of Health Sciences, Jönköping, Sweden.
    Dahle, Charlotte
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Klinisk immunologi. Linköpings universitet, Hälsouniversitetet.
    Antinuclear antibodies in the oldest-old women and men2006Inngår i: Journal of Autoimmunity, ISSN 0896-8411, E-ISSN 1095-9157, Vol. 27, nr 4, s. 281-288Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The aim of this study was to compare the prevalence of antinuclear antibodies (ANA) in very old individuals (≥86 years of age) with healthy younger (18-68 years) blood donors (n = 200) regarding gender, health status, ratio of circulating CD4/CD8 cells and cytomegalovirus (CMV) serology. Frozen plasma was used for ANA detection in two study groups, i.e. 'OCTO' (97 persons aged 86-92 years, 65% women) and 'NONA' (136 persons aged 86-95 years, 70% women). OCTO participants were recruited on the basis that they were healthy or moderately healthy according to a selection protocol. No exclusion criteria regarding health status were applied in the NONA sample. The prevalence of ANA was significantly higher in the oldest-old samples compared to blood donors. There was no association between health status and the presence of ANA in the oldest-old. The difference across age was most pronounced in men, with low levels at younger age, whereas the prevalence among the oldest-old men reached similar levels as in women. There were no associations between the presence of ANA and CD4/CD8 ratio or with CMV status in the oldest-old. Our findings confirm an increased prevalence of ANA in the oldest-old, and emphasize the importance of taking gender and age into consideration when evaluating ANA. © 2006 Elsevier Ltd. All rights reserved.

  • 37.
    Reckner Olsson, Åsa
    et al.
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Yrkes- och miljömedicin. Linköpings universitet, Hälsouniversitetet.
    Skogh, Thomas
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet.
    Axelson, Olav
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Yrkes- och miljömedicin. Linköpings universitet, Hälsouniversitetet.
    Wingren, Gun
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Yrkes- och miljömedicin. Linköpings universitet, Hälsouniversitetet.
    Occupations and exposures in the work environment as determinants for rheumatoid arthritis2004Inngår i: Occupational and Environmental Medicine, ISSN 1351-0711, E-ISSN 1470-7926, Vol. 61, nr 3, s. 233-238Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background and Aims: Several occupational categories have been associated with rheumatoid arthritis (RA); this study was conducted to further evaluate these associations.

    Methods: Lifelong occupational history together with exposure experiences were collected through a postal questionnaire answered by 293 incident cases and 1346 population based referents. Occupational determinants were evaluated through stratified and multivariate analyses; pooled analyses with previously gathered data on 422 prevalent cases and 858 referents were also performed.

    Results: In both materials, significantly increased logistic odds ratios (LORs) were seen for male conductors, freight and transport workers (LOR 17.8, 95% CI 1.5 to 207.8 and LOR 4.7, 95% CI 1.4 to 16.3, respectively), and farmers and farm workers (LOR 2.4, 95% CI 1.1 to 5.2, and LOR 2.2, 95% CI 1.3 to 3.5, respectively). Among women, increased LORs were seen in the separate and the pooled material for printmakers and process engravers (LOR 5.5, 95% CI 0.9 to 32.6, and LOR 3.0, 95% CI 0.9 to 10.3, respectively). Increased risks were seen in both materials for men exposed to asbestos (LOR 2.5, 95% CI 1.0 to 6.8, and LOR 1.6, 95% CI 0.8 to 3.3, respectively), and vibrations (LOR 2.0, 95% CI 0.9 to 4.4, and LOR 2.2, 95% CI 1.3 to 3.8, respectively). The risk for RA increased with increasing duration of exposure to vibrations and mineral dust, respectively.

    Conclusions: There was evidence of a causal relation between exposures to vibrations and mineral dust and development of RA among men. Occupational factors seem to be aetiologically more important for men, and most occupations at risk involve multiple exposures. Several exposures associated with an increased risk for RA are frequent among farmers, and some of the occupations at risk include exposure to organic dust.

  • 38.
    Reckner Olsson, Åsa
    et al.
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Yrkes- och miljömedicin. Linköpings universitet, Hälsouniversitetet.
    Skogh, Thomas
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet.
    Wingren, Gun
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Yrkes- och miljömedicin. Linköpings universitet, Hälsouniversitetet.
    Aetiological factors of importance for the development of rheumatoid arthritis2004Inngår i: Scandinavian Journal of Rheumatology, ISSN 0300-9742, E-ISSN 1502-7732, Vol. 33, nr 5, s. 300-306Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objective: To evaluate exposure to external factors associated with risk or prevention of rheumatoid arthritis (RA).

    Methods: Two hundred and ninety‐three incident cases of RA and 1346 population‐based referents were included in a case‐referent study, in which previous exposure experiences were collected through a postal questionnaire.

    Results: An inverse association between RA and additional schooling after compulsory school was seen for men. Current smoking was associated with significantly increased risks of RA for men and women [odds ratio (OR) 2.9, 95% confidence interval (CI) 1.4–6.4, and OR 1.8, 95% CI 1.1–2.9, respectively], as was previous smoking for men (OR 2.3, 95% CI 1.2–4.4). There were also indications of relationships between previous use of a private well and RA in both men and women.

    Conclusion: Several previously published associations have been reproduced in the present study, which also generates some new hypotheses that suggest further research.

  • 39.
    Reckner Olsson, Åsa
    et al.
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Yrkes- och miljömedicin. Linköpings universitet, Hälsouniversitetet.
    Skogh, Thomas
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet.
    Wingren, Gun
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Yrkes- och miljömedicin. Linköpings universitet, Hälsouniversitetet.
    Comorbidity and lifestyle, reproductive factors, and environmental exposures associated with rheumatoid arthritis2001Inngår i: Annals of the Rheumatic Diseases, ISSN 0003-4967, E-ISSN 1468-2060, Vol. 60, nr 10, s. 934-939Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    OBJECTIVE To evaluate the influence of lifestyle, reproduction, and some external factors on the development of rheumatoid arthritis (RA) and to describe its comorbidity.

    METHODS Cases were identified retrospectively from 1980 to 1995 at the University Hospital in Linköping, Sweden. The study comprised 422 cases and 859 randomly selected population referents. Data on possible aetiological factors and comorbidity were collected by postal questionnaire.

    RESULTS The response rates were 67% among cases and 59% among referents. A decrease in the occurrence of atopic allergy was seen in the cases (odds ratio (OR) 0.6, 95% confidence interval (CI) 0.4 to 1.0). There was a positive association between RA and insulin treatment (OR 10.2, 95% CI 1.7 to 60.8) in women, and women with a short fertile period had an increased risk of RA (OR 2.5, 95% CI 1.1 to 5.4). Current and previous smoking were associated with increased risks for RA in both sexes, and in men a dose-response relationship was found with number of tobacco pack years (p for trend <0.005). The risk for RA decreased with increasing level of education in both men and women. Increased risks were seen in men born into households with private wells (OR 2.8, 95% CI 1.5 to 5.2), residentially exposed to mould (OR 4.6, 95% CI 1.1 to 20.2), or exposed to farm animals (OR 3.3, 95% CI 0.7 to 16.6). In women there were positive associations between RA and reporting a previous joint injury (OR 2.5, 95% CI 1.0 to 6.6) and prolonged exposure to hair dyes (OR 1.9, 95% CI 0.8 to 4.5).

    CONCLUSIONS RA, a disease with features of T helper 1 (Th1) dominated immune response, was inversely associated with atopic allergy, a Th2 dominated condition, while there were indications of a strong positive association with Th1 related diabetes mellitus. The results support a causal relationship between smoking and RA. The level of education was inversely associated with RA, while there was a positive association between RA and certain residential factors in men and a short fertile period in women.

  • 40.
    Reckner Olsson, Åsa
    et al.
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Yrkes- och miljömedicin. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet.
    Wingren, Gun
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Yrkes- och miljömedicin. Linköpings universitet, Hälsouniversitetet.
    Skogh, Thomas
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet.
    Svernell, Olle
    Department of Internal Medicine, Västervik Hospital, Västervik.
    Ernerudh, Jan
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Klinisk immunologi. Linköpings universitet, Hälsouniversitetet.
    Allergic manifestations in patients with rheumatoid arthritis2003Inngår i: Acta Pathologica, Microbiologica et Immunologica Scandinavica (APMIS), ISSN 0903-4641, E-ISSN 1600-0463, Vol. 111, nr 10, s. 940-944Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A functional dichotomy between Th1- and Th2-type immune responses has been suggested. This study was performed to investigate whether rheumatoid arthritis (RA), a disease with indications of Th1-deviated immune activation, is inversly related to atopic conditions which are Th2-mediated. Two hundred and sixty-three adult cases of RA, fulfilling the American Rheumatism Association (ARA) 1987 Revised Classification Criteria for RA, were identified in 1995 and compared with 541 randomly selected population referents. The presence of atopic manifestations was established through a postal questionnaire and by demonstrating circulating IgE antibodies to common allergens. RA was inversely associated with certain manifestations of rhinitis, which were regarded as the most reliable indicators of atopic disease in the present study. However, no negative association was seen between RA and asthma and eczema, respectively. The main results give some support for an inverse relationship between RA and rhinitis. The prevalence of circulating IgE antibodies was however similar in cases and controls, suggesting that the T-cell commitment mainly occurs in the affected organs.

  • 41.
    Reckner, Åsa
    et al.
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Yrkes- och miljömedicin. Linköpings universitet, Hälsouniversitetet.
    Skogh, Thomas
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet.
    Wingren, Gun
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Yrkes- och miljömedicin. Linköpings universitet, Hälsouniversitetet.
    Occupational determinants for rheumatoid arthritis2000Inngår i: Scandinavian Journal of Work, Environment and Health, ISSN 0355-3140, E-ISSN 1795-990X, Vol. 26, nr 3, s. 243-249Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objectives The aim of the present study was to evaluate possible occupational determinants for rheumatoid arthritis according to lifetime occupational history.

    Methods The cases were identified retrospectively from 1980 to 1995 at the University Hospital in Linköping, Sweden. The study comprised 422 cases and 859 randomly selected referents. Exposure data were collected through a postal questionnaire.

    Results For men, occupations with increased, although nonsignificant, odds ratios (OR) were farmers or farm workers [OR 1.8, 95% confidence interval (95% CI) 1.0-3.5], textile workers (OR 2.0, 95% CI 0.3-16.2), asphalters (OR 14.0, 95% CI 1.2-799.0 without latency requirement), and employees at service stations (OR 2.2, 95% CI 0.5-9.5). Among the women, hairdressers and beauticians (OR 2.7, 95% CI 0.8-8.6) had an increased risk for rheumatoid arthritis, as well as those exposed to hairdressing chemicals (OR 3.0, 95% CI 1.0-9.4) and meat products (OR 2.0, 95% CI 1.0-4.0).

    Conclusion Several of the findings in this study are in accordance with those of previous studies. The increased risks of rheumatoid arthritis for asphalters and employees at service stations are however new associations previously not described in the literature.

  • 42.
    Rydén, Ingvar
    et al.
    Department of Clinical Chemistry, Kalmar County Hospital, Sweden.
    Påhlsson, Peter
    Linköpings universitet, Institutionen för biomedicin och kirurgi, Klinisk kemi. Linköpings universitet, Hälsouniversitetet.
    Lundblad, Arne
    Linköpings universitet, Institutionen för biomedicin och kirurgi, Klinisk kemi. Linköpings universitet, Hälsouniversitetet.
    Skogh, Thomas
    Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet.
    Fucosylation of α1-acid glycoprotein (orosomucoid) compared with traditional biochemical markers of inflammation in recent onset rheumatoid arthritis2002Inngår i: Clinica Chimica Acta, ISSN 0009-8981, E-ISSN 1873-3492, Vol. 317, nr 1-2, s. 221-229Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background: Fucosylation of α1-acid glycoprotein (AGP, orosomucoid) has previously been found to be increased in patients with rheumatoid arthritis. Furthermore, the degree of fucosylation has been suggested to reflect disease activity. Therefore, we investigated the fucosylation of AGP in 131 patients (96 women and 35 men) with recent onset rheumatoid arthritis (RA). We compared the results with traditional biochemical markers of inflammation, i.e. plasma concentrations of AGP (P-AGP), and C-reactive protein (P-CRP).

    Methods: AGP fucosylation measured with a novel lectin enzyme-linked immunosorbent assay (ELISA) was compared with a disease activity score (DAS28) and its components, and with P-AGP, and P-CRP at the time of diagnosis, and at a follow-up visit 1 year later.

    Results: Both men and women with RA had increased AGP fucosylation compared to healthy individuals. We found a weak correlation between AGP fucosylation and DAS28 only in men. In men with initially increased AGP fucosylation, the level of fucosylation correlated with the change in DAS28 during the first year following diagnosis.

    Conclusion: We conclude that AGP fucosylation is not superior to traditional markers of disease activity in RA. However, AGP fucosylation may give some additional information to traditional biochemical markers on the disease progression in men.

  • 43.
    Rönnelid, Johan
    et al.
    Uppsala.
    Klareskog, Lars
    KI.
    Skogh, Thomas
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Svensson, Björn
    Helsingborg.
    Antikroppar mot citrullinerade proteiner - genombrott i reumatologisk diagnostik.2004Inngår i: Läkartidningen, ISSN 0023-7205, E-ISSN 1652-7518, Vol. 101, nr 50, s. 4092-4096Artikkel i tidsskrift (Annet vitenskapelig)
  • 44. Samuelsson, A-K
    et al.
    Hydén, Dag
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för nervsystem och rörelseorgan, Oto-Rhino-Laryngologi. Östergötlands Läns Landsting, RC - Rekonstruktionscentrum, ÖNH - Öron- Näsa- Halskliniken.
    Roberg, Magnus
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Infektionsmedicin. Östergötlands Läns Landsting, Medicincentrum, Infektionskliniken i Östergötland.
    Skogh, Thomas
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Evaluation of anti-hsp70 antibody screening in sudden deafness2003Inngår i: Ear and Hearing, ISSN 0196-0202, E-ISSN 1538-4667, Vol. 24, nr 3, s. 233-235Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objective: To assess the diagnostic utility of anti-hsp70 antibody screening in sudden deafness. Design: Sera from 27 patients with sudden deafness and 100 healthy blood donors were analyzed by Western blotting (WB) for the presence of antibodies against 68 kD heat shock protein (anti-hsp70). Results: 19% of the patient sera and 14% of the control sera turned out positive, which was not significantly different. Conclusions: The anti-hsp70 WB test lacks clinical utility for diagnostic screening in patients with sudden deafness.

  • 45.
    Shleev, Sergey
    et al.
    Malmö .
    Wetterö, Jonas
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi.
    Magnusson, Karl-Eric
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Medicinsk mikrobiologi.
    Ruzgas, Tautgirdas
    Malmö .
    Electrochemical characterization and application of azurin-modified gold electrodes for detection of superoxide2006Inngår i: Biosensors & bioelectronics, ISSN 0956-5663, E-ISSN 1873-4235, Vol. 22, nr 2, s. 213-219Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A novel biosensor for superoxide radical (O2{radical dot}-) detection based on Pseudomonas aeruginosa azurin immobilized on gold electrode was designed. The rate constant of azurin reduction by O2{radical dot}- was found to be 105 M-1 s-1 in solution and five times lower, i.e., 0.2 × 105 M-1 s-1, for azurin coupled to gold by 3,3′-dithiobis(sulfosuccinimidylpropionate) (DTSSP). The electron transfer rate between the protein and the electrode ranged from 2 to 6 s-1. The sensitivity of this biosensor to O2{radical dot}- was 6.8 × 102 A m-2 M-1. The response to the interference substances, such as uric acid, H2O2, and dimethylsulfoxide was negligible below 10 μM. The electrode was applied in three O2{radical dot}- generating systems: (i) xanthine oxidase (XOD), (ii) potassium superoxide (KO2), and (iii) stimulated neutrophil granulocytes. The latter was compared with luminol-amplified chemiluminescence. The biosensor responded to O2{radical dot}- in all three environments, and the signals were antagonized by superoxide dismutase. © 2006 Elsevier B.V. All rights reserved.

  • 46.
    Sjöwall, Christoffer
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi.
    C-reaktivt protein - mer än bara en inflammationsmarkör.2004Inngår i: Smittnytt : information från smittskyddet och mikrobiologen, nr 37, s. 15-17Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 47.
    Sjöwall, Christoffer
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi.
    Bengtsson, Anders
    Lund .
    Sturfelt, Gunnar
    Lund .
    Skogh, Thomas
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Letter: Anti-CRP autoantibody levels correlate with disease activity in systemic lupus erythematosus2005Inngår i: Seminars in Arthritis & Rheumatism, ISSN 0049-0172, E-ISSN 1532-866X, Vol. 35, nr 1, s. 65-66Artikkel i tidsskrift (Annet vitenskapelig)
    Abstract [en]

    [No abstract available]

  • 48.
    Sjöwall, Christoffer
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi.
    Bengtsson, Torbjörn
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för medicin och vård, Klinisk farmakologi.
    Skogh, Thomas
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    CRP and anti-CRP autoantibodies in systemic lupus erythematosus.2005Inngår i: Current rheumatology reviews, ISSN 1573-3971, Vol. 1, s. 81-89Artikkel i tidsskrift (Fagfellevurdert)
  • 49.
    Sjöwall, Christoffer
    et al.
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Wetterö, Jonas
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi.
    Pathogenic implications for autoantibodies against C-reactive protein and other acute phase proteins2007Inngår i: Clinica Chimica Acta, ISSN 0009-8981, E-ISSN 1873-3492, Vol. 378, nr 1-2, s. 13-23Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Systemic lupus erythematosus (SLE) is a systemic rheumatic disease characterized clinically by multiorgan involvement and serologically by the occurrence of antinuclear antibodies. SLE patients may present with multiple autoantibodies to cytoplasmic and cell surface antigens as well as to circulating plasma proteins. Another feature of SLE is that serum levels of C-reactive protein (CRP) often remain low despite high disease activity and despite high levels of other acute phase proteins and interleukin-6, i.e. the main CRP inducing cytokine. Apart from its important role as a laboratory marker of inflammation, CRP attracts increasing interest due to its many intriguing biological functions, one of which is a role as an opsonin contributing to the elimination of apoptotic cell debris, e.g. nucleosomes, thereby preventing immunization against autoantigens. Recently, autoantibodies against CRP and other acute phase proteins have been reported in certain rheumatic conditions, including SLE. Although the presence of anti-CRP autoantibodies does not explain the failed CRP response in SLE, antibodies directed against acute phase proteins have several implications of pathogenetic interest. This paper thus highlights the biological and clinical aspects of native and monomeric CRP and anti-CRP, as well as autoantibodies against mannose-binding lectin, serum amyloid A and serum amyloid P component. © 2006 Elsevier B.V. All rights reserved.

  • 50.
    Skogh, Thomas
    Linköpings universitet, Hälsouniversitetet. Linköpings universitet, Institutionen för molekylär och klinisk medicin, Reumatologi. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Does a positive anti-CCP test identify a distinct arthritis entity?2005Inngår i: Arthritis Research and Therapy, ISSN 1478-6354, Vol. 7, nr 6, s. 230-232Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The introduction of tests recognizing 'anti-citrullinated protein antibodies' (ACPA) has caused a revolution in rheumatology. Immunization against citrullinated proteins is a feature almost unique for rheumatoid arthritis, although ACPA may occur long before the onset of symptoms. Even if the presence of ACPA does not seem to reveal a distinct arthritis phenotype at symptom onset, it predicts an aggressive disease course with unfavourable outcome. Despite the very high diagnostic specificity for rheumatoid arthritis, ACPA-positivity does not always accord with a traditional diagnosis of rheumatoid arthritis at clinical presentation. However, even when these patients are judged to suffer from mild undifferentiated arthritis, they call for follow-up and special attention by rheumatologists. © 2005 BioMed Central Ltd.

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