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A comparative study on the diversity of clinical features between the sero-negative and sero-positive rheumatoid arthritis patients.
MedLine Citation:
PMID:  22198665     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
To investigate the similarities and differences in clinical features between the sero-negative and sero-positive rheumatoid arthritis (RA) patients. Two hundred and sixty-two RA patients who fulfilled the 1987 ACR RA Classification Criteria were enrolled into this study. They were divided into sero-negative and sero-positive group depending on the presence or absence of rheumatoid factor (RF) and anti-cyclic citrullinate peptide (anti-CCP). The clinical features were compared between these two groups. Forty-six (17.6%) RA patients were classified as sero-negative group. The disease onset of sero-negative RA patients was later than that of sero-positive RA patients (52.4 ± 15.9 vs. 47.4 ± 15.5 years, P < 0.05). At the end of the first 2 years after disease onset, bone erosion shown in the hand X-ray occurred in 4 out of 24 (16.7%) patients with sero-negative RA. However, only 5.2% (5/97) patients with sero-positive RA developed bone erosion (P < 0.05). In the sero-positive RA patients, the titer of RF was correlated with swollen joint counts (SJC), tender joint counts (TJC), erythrocyte sedimentation rate (ESR), and disease activity score in 28 joints (DAS28) (P < 0.05), but anti-CCP was not. Sero-negative and sero-positive RA are probably two distinct disease subtypes driven by different mechanisms.
Authors:
Yan Geng; Wei Zhou; Zhuo-Li Zhang
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-12-24
Journal Detail:
Title:  Rheumatology international     Volume:  -     ISSN:  1437-160X     ISO Abbreviation:  -     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-12-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8206885     Medline TA:  Rheumatol Int     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department Rheumatology and Clinical Immunology, Beijing University First Hospital, No. 8, Xishiku Street, West District, Beijing, 100034, China.
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