The level of serum visfatin (PBEF) is associated with total number of B cells in patients with rheumatoid arthritis and decreases following B cell depletion therapy
Keywords: RA, rheumatoid arthritis; BMI, body mass index; PBEF, pre-B cell colony-enhancing factor; NAMPT, nicotinamide phosphoribosyltransferase; BAFF, B cell-activating factor of the TNF family; TNF, tumor necrosis factor; ACR, american college of rheumatology; D