... Ceylan3 1. Yuzuncu Yil University, Medical Faculty, Department of Physical Medicine Rehabilitation and Rheumatology, Van, Turkey; 2. Yuzuncu Yil University, Medical Faculty, Department of ... was determined by comparing the absorption to the standard curve of MDA equivalents generated by acid catalyzed hydrolysis of 1,1,3,3 tet-ramethoxypropane. The optical density was meas-ured ... terms of the mean whole blood and serum antioxidative activ-ity (CAT, GSHpx) and the mean blood and serum MDA and MPO values (oxidative activity), between the patients with anti-CCP(+) and...