SUMMARY
The influence of Satureja montana extracts on several liver biochemical parameters in mice administered with carbon tetrachloride was estimated. In vivo investigation of antioxidant properties of S. montana extracts encompassed monitoring of biochemical parameters (derived from liver homogenate and blood hydrolyzate) and examination of potential hepatoprotective effect after intoxication with carbon tetrachloride. Biochemical tests included determination of activity of several antioxidant enzymes: xanthine oxidase, catalase, peroxidase, glutathione peroxidase, amount of reduced glutathione and intensity of lipid peroxidation. In order to obtain data about potent hepatoprotective effect of examined extracts, following parameters were determined: aspartate aminotransferase, alanine aminotransferase, bilirubin, hepatic DNA and hydroxyprolin. Results of this study demonstrate that S. montana extracts inhibited the hepatotoxicity produced by carbon tetrachloride administration most probably through activation of physiological common defense mechanisms.