“…We used the substances reacting with thiobarbituric acid measured in plasma at 535nm (Brown & Kelly, 1996). Clinical studies have shown increased plasmatic levels of MDA in patients with RA (Baskol et al, 2005(Baskol et al, , 2006Sarban et al, 2005). The level of MDA in the plasma of arthritic animals was also elevated (Bauerova et al, 2008bHe et al, 2006;Sotnikova et al, 2009;Strosova et al, 2008Strosova et al, , 2009Tastekin et al, 2007).…”