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- Abelson, Anna-Karin, et al.
(författare)
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STAT4 Associates with SLE through two independent effects that correlate with gene expression and act additively with IRF5 to increase risk
- 2009
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Ingår i: Annals of the Rheumatic Diseases. - : BMJ. - 0003-4967 .- 1468-2060. ; 68:11, s. 1746-1753
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVES: To confirm and define the genetic association of STAT4 and systemic lupus erythematosus, investigate the possibility of correlations with differential splicing and/or expression levels, and genetic interaction with IRF5. METHODS: 30 tag SNPs were genotyped in an independent set of Spanish cases and controls. SNPs surviving correction for multiple tests were genotyped in 5 new sets of cases and controls for replication. STAT4 cDNA was analyzed by 5'-RACE PCR and sequencing. Expression levels were measured by quantitative PCR. RESULTS: In the fine-mapping, four SNPs were significant after correction for multiple testing, with rs3821236 and rs3024866 as the strongest signals, followed by the previously associated rs7574865, and by rs1467199. Association was replicated in all cohorts. After conditional regression analyses, two major independent signals represented by SNPs rs3821236 and rs7574865, remained significant across the sets. These SNPs belong to separate haplotype blocks. High levels of STAT4 expression correlated with SNPs rs3821236, rs3024866 (both in the same haplotype block) and rs7574865 but not with other SNPs. We also detected transcription of alternative tissue-specific exons 1, indicating presence of tissue-specific promoters of potential importance in the expression of STAT4. No interaction with associated SNPs of IRF5 was observed using regression analysis. CONCLUSIONS: These data confirm STAT4 as a susceptibility gene for SLE and suggest the presence of at least two functional variants affecting levels of STAT4. Our results also indicate that both genes STAT4 and IRF5 act additively to increase risk for SLE.
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- Andersson, M. L. E., et al.
(författare)
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Diurnal variation in serum levels of cartilage oligomeric matrix protein in patients with knee osteoarthritis or rheumatoid arthritis
- 2006
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Ingår i: Annals of the Rheumatic Diseases. - : BMJ. - 0003-4967 .- 1468-2060. ; 65:11, s. 1490-1494
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To monitor changes in serum concentrations of cartilage oligomeric matrix protein (COMP) during a 24-h period to determine any diurnal variation, and to estimate the half life of COMP in the circulation in patients with symptomatic knee osteoarthritis and in those with rheumatoid arthritis. Methods: Serum samples were drawn every 4 h (7 samples/patient over 24 h) in 10 patients with knee osteoarthritis and 14 patients with rheumatoid arthritis. Osteoarthritis was defined radiographically and clinically (American College of Rheumatology (ACR) criteria) and rheumatoid arthritis according to the 1987 ACR criteria. Serum COMP was measured by sandwich ELISA. A statistical model for the diurnal variation in the COMP levels was developed using the computer program NONMEM. Results: No considerable changes in COMP levels were observed during the day between 08:00 and 21:00 in either group. A significant decrease in serum COMP was apparent during bed rest at night, reaching the lowest levels between 04:00 and 05:00 (p < 0.03 or better v all other time points) in patients with osteoarthritis and in those with rheumatoid arthritis. From the rate of decreasing serum COMP levels, a putative half life of COMP in the circulation was estimated to be 7.4 h. Conclusion: During normal daytime activities, serum COMP levels are constant. The decrease during the night indicates a rapid elimination of COMP once it has reached the circulation. The stable COMP levels during the day suggest that it is not necessary to further standardise the time of serum sampling in clinical practice.
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- Arvidsson, Susann, 1965-, et al.
(författare)
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Chronic musculoskeletal pain and sleep disturbances as predictors for lower vitality measured by the short form 36 (SF-36) - A eight-year follow up study
- 2006
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Ingår i: Annals of the Rheumatic Diseases. - London : BMJ Books. - 0003-4967 .- 1468-2060. ; 65:Suppl. 2, s. 656-656
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Background: Subjects with chronic musculoskeletal pain or sleep disturbances have been shown to have a poor healthstatus as measured by the SF-36 health survey. Fatigue is commonly reported by subjects with chronic musculoskeletal pain and sleep disturbances. There is little known about the temporal relationship between chronic pain, sleep disturbances and changes of vitality.Objectives: The aim of this study was to evaluate the predictive value of chronic musculoskeletal pain and sleep disturbances with regard to changes in vitality as measured by SF-36 over an eight year period.Method: An eight year follow up of 2 425 subjects aged 20-74 from the general population that in 1995 answered the same postal questionnaire. The questionnaire assessed chronic musculoskeletal pain, sleep disturbances, and included the SF-36 health survey. Pain was considered "chronic" if persistent for three months or more. Sleep disturbances assessed were difficulty in falling asleep, frequent awakenings, early awakenings and not feeling rested. Main outcome measure was change of vitality as measured by SF-36 in those that at baseline reported vitality over the median value. Statistical analyses were done with use of logistic regression. Besides the studied variables, the logistic regression analyses also controlled for gender, age, socio-economic group, and the use of analgesics and sleeping pills.Results: At baseline 1212 subjects reported a vitality score on SF-36 above the median score of 75. There were 943 subjects (78%) responding at the eight-year follow up. Chronic pain at baseline predicted (OR=1,64, 95% CI 1,14-2,36%, p=0,01) worsening of vitality over time. Loss of vitality was also predicted by moderate problems with falling asleep (OR=2,17, 95% CI 1,31-3,60%, p<0,01), and problems with not feeling rested (moderate problems OR=2,08, 95% CI 1,23-3,50%, p=0,01, and major problems OR=4,76, 95% CI 1,53-14,78%, p=0,01).Conclusion: Loss of vitality in SF-36 over an eight-year period was predicted by chronic musculoskeletal pain, problems with falling asleep and problems with not feeling rested. Problems with frequent awakenings and early awakenings did not predict lower value of vitality over an eight-year period. It could thus be important to attend to sleeping problems and especially the feeling of not being rested in subjects with chronic musculoskeletal pain.
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- Arvidsson, Susann, 1965-, et al.
(författare)
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Feeling rested predicts good health in subjects with and without chronic musculoskeletal pain
- 2008
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Ingår i: Annals of the Rheumatic Diseases. - London : BMJ Books. - 0003-4967 .- 1468-2060. ; 67:Suppl. II, s. 552-552
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Tidskriftsartikel (refereegranskat)abstract
- Background: Musculoskeletal pain is a public health problem and a common cause for people to seek health care. It has also been shown that people with musculoskeletal pain estimates their health-related quality of life very low compared to a pain free population. Earlier studies have primarily looked at risk factors and there are little known about health predicting factors in a general population.Objectives: To investigate the associations between suggested health factors and health-related quality of life at baseline and in an eight-year follow up in subjects with and without chronic musculoskeletal pain.Methods: A longitudinal study in a Swedish general population (N=1 849) with a postal questionnaire at baseline 1995 and at a follow up 2003. Subjects were divided into two groups, according to their response about chronic musculoskeletal pain at baseline. Health-related quality of life was assessed by the SF-36 together with suggested health factors. The associations between the dependent variables (SF-36 subscales) and the independent variables (i.e. the suggested health factors; socioeconomic status, immigrant status, emotional support, regularly exercise, sleep structure, feeling rested, smoking and alcohol habits) were estimated by OR and 95% CI calculated by multivariable logistic regressions, with adjustment for all health factors, age, sex and baseline SF-36 values.Results: The most consistent finding for subjects with and without chronic musculoskeletal pain at baseline and in the eight-year follow up was a statistical significant (p<0.05) better health outcome in SF-36 subscales for subjects that were feeling rested at baseline. At baseline feeling rested was associated with having a health status better than the mean score in seven SF-36 subscales for both subjects with chronic pain (OR 1.5 (95% CI 1.0-2.3) – OR 4.4 (95% CI 2.9-6.6)) and subjects without chronic pain (OR 2.6 (95% CI 1.6-4.1) – OR 4.4 (95% CI 3.0-6.5)). At the follow up feeling rested predicted a better outcome in five subscales for subjects with chronic pain (OR 1.6 (95% CI 1.0-2.4) – OR 2.2 (95% CI 1.4-3.6)) and in six subscales for subjects without chronic pain (OR 1.6 (95% CI 1.0-2.5) – OR 2.7 (95% CI 1.8-4.1)). Other factors that in some aspects predicted a better outcome were belonging to higher socioeconomic group, being an inborn Swede, having emotional support, having good sleep structure, never being or being a former smoker, and regularly drinking alcohol.Conclusion: ''Feeling rested'' was the most consistent factor predicting a good health outcome, both in subjects with and without chronic musculoskeletal pain, and should be attended to in health promotion work. Emotional support, sleep structure, smoking and alcoholic habits also appears to be important health factors to take into account.
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- Arvidsson, Susann, 1965-, et al.
(författare)
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In Patient Team Care Improved Health-Related Quality of Life for Patients with Rheumatic Diseases over Three and Six Months
- 2006
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Ingår i: Annals of the Rheumatic Diseases. - London : BMJ Books. - 0003-4967 .- 1468-2060. ; 65:Suppl. 2, s. 274-275
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Tidskriftsartikel (refereegranskat)abstract
- Background: For measuring outcomes in team care, different aspects in the ICF (International Classification of Functioning) are relevant. Health-related quality of life as measured by SF-36 includes aspects of body function as well as activity and participation. HADS (Hospital Anxiety and Depression Scale) reflects more personal factors. Individuals with rheumatic diseases experience lower degree of health-related quality of life, compared with the general population.Objectives: To examine health-related quality of life as well as anxiety and depression in patients with rheumatic diseases directly after and three and six months after a period of three weeks in patient team based multiprofessional rehabilitation at a unit specialised for patients with different rheumatic diseases.Method: Quasi-experimental design with pre- and post-test in consecutive adult patients (Rheumatoid arthritis n=23, Spondylarthritides n=14, Osteoarthritis n=6, Other inflammatory rheumatic diseases n=10), one week before(n=55), one week after(n=53), three (n=40) and six months (n=36) after a period of three weeks of in patient team based multiprofessional care at a unit for rheumatic diseases. The instruments used for outcome measurements were the Short Form 36 Health questionnaire (SF-36) and the Hospital Anxiety and Depression Scale (HADS). Statistical analysis was done with the SPSS package 13.0. Differences between groups were evaluated with Wilcoxon signed rank test.Results: The patients reported worse outcome on the eight health scales in SF-36, at baseline and one week, three and six months after the rehabilitation, when comparing with the norm for the Swedish population. The mean values for SF-36 improved in all eight subscales one week after the rehabilitation period and six of the health scales obtained statistically significant improvement (p<0.05). Three and six months later there was still a statistically (p<0.05 for 3/8 subscales; Role Physical (RP), Vitality(VT) and Mental Health(MH)) and/or clinically significant (5/8 subscales; Physical function(PF), Bodily Pain(BP), General Health(GH), Social Fundtioning(SF) and Role Emotional(RE)) improvement as compared to the levels before the rehabilitation period. The levels for anxiety and depression as measured by HADS improved significantly (p<0.05) one week after the rehabilitation period as compared to baseline. Three and six months after the rehabilitation period, the levels were the same as at baseline.Conclusion: Earlier studies and this study have shown that people with rheumatic diseases experience reduced health-related quality of life and increased anxiety and depression. The result from this study showed that after a period of three weeks in patient team based multiprofessional rehabilitation, the experience of health-related quality of life was improved also after three and six months whereas the improvement in anxiety and depression returned to baseline after three and six months. Thus, improvements in health-related quality of life seem to reflect other aspects of the disease consquences than anxiety and depression.
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