HLA-B27 and HLA-DR4: Arthritis and the Genetic FactorWhy Me? Is It In The Genes? Why does one person get arthritis as opposed to another person? Why is a person afflicted with rheumatoid arthritis rather than ...Rheumatoid Arthritis | HLA Disease AssociationsRheumatoid Arthritis (RA) is a chronic inflammatory arthritis that affects multiple synovial lined joints. The natural history of the condition is one of progressive ...HLA and other susceptibility genes in rheumatoid arthritisThe association of the human leukocyte antigens (HLA) region with rheumatoid arthritis (RA) was first noted in the late 1970s when the frequency of HLA-Dw4 was found ...