Rheumatoid factor (RF) levels above a normal range can indicate autoimmune conditions, such as rheumatoid arthritis (RA). Rheumatoid factor (RF) is an immune system protein that attacks healthy cells.

Higher leptin levels were associated with chronic widespread pain among patients with RA, even after adjusting for age, BMI, and sex.

Researchers’ understanding of the pathogenesis of rheumatoid arthritis has grown considerably in recent years, laying the ...

AnaptysBio stock whipsawed Wednesday despite promising results for its experimental rheumatoid arthritis treatment.

Patients receiving an immune checkpoint inhibitor for a neoplasm face an increased risk for rheumatoid arthritis, an ...