Increased cartilage turnover and circulating autoantibodies in different subsets before the clinical onset of rheumatoid arthritis.
BACKGROUND: /st> Previous studies have indicated that autoantibodies may be detected years before the clinical onset of rheumatoid arthritis (RA). Cartilage biomarkers, such as cartilage oligomeric matrix protein (COMP), have not been studied previously in samples collected before the diagnosis of RA. METHODS: /st> Between 1991 and 1996, 30 447 subjects were included in the Malmö Diet Cancer Study
