title: Effect of Triton WR-1339 on the rates of synthesis and degradation of hepatic catalase of rat.
abstract: The effect of Triton WR-1339 on the rates of synthesis and degradation of hepatic catalase was examined. Triton WR-1339 was injected intraperitoneally into rats at a dose of 200 mg per 100 g body weight. Catalase activity decreased to about 35% of that of the control at 42-48 h after the injection and recovered to the normal level at 96 h. Other peroxisomal enzymes, D-amino acid oxidase and urate oxidase, showed similar patterns of the activities to those of catalase. During the first 48 h after the injection of Triton WR-1339, the rate of catalase synthesis (ks) fell to below a detectable value, while that of the degradation (kd) did not show any significant change. On the other hand, during the period 48-96 h after the injection, the rate of the synthesis (ks) returned to the normal level though that of the degradation (kd) decreased to about 50% of the control.
mesh_terms: D000640:Amitrole / Q000494:pharmacology; D000818:Animals; D002374:Catalase / Q000096:biosynthesis / Q000378:metabolism*; D007700:Kinetics; D008099:Liver / Q000187:drug effects / Q000201:enzymology*; D008297:Male; D011092:Polyethylene Glycols / Q000494:pharmacology*; D051381:Rats
chemical_list: D011092:Polyethylene Glycols; D002374:Catalase; D000640:Amitrole