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The relationship between vitamin D and disease activity and functional health status in rheumatoid arthritis.
MedLine Citation:
PMID:  20300755     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
We aimed to establish the relationship between serum vitamin D levels and disease activity and health status in rheumatoid arthritis. Sixty-five patients with RA fulfilling ACR criteria for the classification of rheumatoid arthritis and forty healthy controls were included in this study. Disease activity was assessed according to the Disease Activity Score including 28 joint counts. C-reactive protein (CRP, mg/dl) was determined by the nephelometric method. Erythrocyte sedimentation rate (ESR, mm/h) was determined by the Westergren method. Rheumatoid factor (RF, IU/ml) was also determined by the nephelometric method, and RF > 20 IU/ml was defined as positive. 25-OH Vitamin D EIA Kit was used to measure serum 25-OH Vitamin D levels. We found that the mean of the 25-OH D vitamin levels of the patients with RA was not different than that of controls (P = 0.936). We divided patients with RA into three groups according to DAS28 as low activity group (group 1, n = 25), moderate activity group (group 2, n = 25), and high activity group (group 3, n = 15). 25-OH vitamin D levels of the patients in the high activity group (group 3) were found to be the lowest (P < 0.001), and the patients with moderate disease activity had lower levels than those in the mild group (P = 0.033). Serum 25-OH vitamin D levels were significantly negatively correlated with DAS28, CRP, and HAQ (respectively, r = -0.431, P = 0.000, r = -0.276, P = 0.026, and r = -0.267, P = 0.031). Serum vitamin D levels in patients with RA were similar those in the healthy controls, while it significantly decreases in accordance with the disease activity and decreasing functional capacity.
Authors:
Ayşe Dicle Turhanoğlu; Hayal Güler; Zafer Yönden; Fatma Aslan; Ayhan Mansuroglu; Cahit Ozer
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Publication Detail:
Type:  Journal Article     Date:  2010-03-19
Journal Detail:
Title:  Rheumatology international     Volume:  31     ISSN:  1437-160X     ISO Abbreviation:  Rheumatol. Int.     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-06-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8206885     Medline TA:  Rheumatol Int     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  911-4     Citation Subset:  IM    
Affiliation:
Department of Physical Medicine and Rehabilitation, Mustafa Kemal University Hospital, 31100, Hatay, Turkey, adat@ttmail.com.
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