Arthritis Rheumatol. 2025 Jul 16. doi: 10.1002/art.43315. Online ahead of print. ABSTRACT OBJECTIVE: Patients with juvenile idiopathic arthritis (JIA) frequently exhibit antinuclear antibodies (ANAs), but the specific antigen target recognized by them and the presence of additional autoantibody specificities in patients with JIA remains elusive. METHODS: Plasma samples from 110…

