Genetic basis for rheumatoid arthritis.

Abstract excerpt

Rheumatoid arthritis (RA) is a common disabling disorder of unknown etiology. In the past 2 decades, a number of studies have examined the genetic basis for RA. One major focus of these studies has been to identify genes within the MHC class II (HLA-DR) chromosomal region, which confer susceptibility/resistance to RA. A strong association between HLA-DR4 and adult seropositive RA has been observed in majority of...

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