... according to Matkovics et al [17]. GSH-Px activity in samples was expressed as units (U/ml) of GSH-Px activity. Myeloperoxidase (MPO) analysis MPO activity was measured according to the ... especially severity of RA [10], and also closely correlated to inflammatory disease activity (Disease Activity Score-DAS28) scores and the presence, development, and extent of joint erosions ... smoking and alcohol habits and physical examinations. Inflammatory disease activity was defined as a Disease Activity Score (DAS 28). All patients evaluated in terms of RF, CRP, ESR, and an-ti-CCP2...