... and hydroxyl rad-ical (OHS), with the potential to initiate cellular damage in joint tissues especially in RA. They are formed by phagocyte activation during inflammation. The current study ... Ceylan3 1. Yuzuncu Yil University, Medical Faculty, Department of Physical Medicine Rehabilitation and Rheumatology, Van, Turkey; 2. Yuzuncu Yil University, Medical Faculty, Department of ... Conclusions: In conclusion, anti-CCP antibody positivity seems to be associated with increased synovial fluid oxidant activity (in- creased MDA and MPO levels) in patients with RA. These conclusions...