Abstract Objective To investigate the distribution and activation of B-cell subpopulations in rheumatoid arthritis (RA) patients treated with Janus kinase inhibitors (JAKis) and to analyze their correlation with disease remission. Methods Peripheral blood samples were collected from 23 adult healthy controls and 58 RA patients. 31 of whom were treated with JAKis and assessed during a ... https://jalyttlers.shop/product-category/umbrella/