Verma R J, Nair A
Department of Zoology, University School of Sciences, Gujarat University, Ahmedabad 380009, India.
Food Chem Toxicol. 2002 May;40(5):669-72. doi: 10.1016/s0278-6915(01)00131-4.
The potential of aflatoxin to affect testicular steroidogenesis and its amelioration by vitamin E was assessed in the present investigation. Oral administration of aflatoxin (25 and 50 microg/animal/day) for 45 days to adult mice caused, as compared with control, a dose-dependent significant rise in cholesterol content. However, the activities of 3beta- and 17beta-hydroxysteroid dehydrogenases and serum testosterone levels were significantly reduced in aflatoxin-treated mice as compared with the controls. Pretreatment with vitamin E (2 mg/animal/day, orally) significantly ameliorated aflatoxin-induced changes as compared with aflatoxin treatment alone. The present investigation clearly indicates that vitamin E ameliorates aflatoxin-induced changes in steroidogenesis.
在本研究中评估了黄曲霉毒素影响睾丸类固醇生成的潜力以及维生素E对其的改善作用。与对照组相比,成年小鼠口服黄曲霉毒素(25和50微克/动物/天)45天导致胆固醇含量呈剂量依赖性显著升高。然而,与对照组相比,黄曲霉毒素处理的小鼠中3β-和17β-羟基类固醇脱氢酶的活性以及血清睾酮水平显著降低。与单独的黄曲霉毒素处理相比,用维生素E(2毫克/动物/天,口服)进行预处理显著改善了黄曲霉毒素诱导的变化。本研究清楚地表明,维生素E改善了黄曲霉毒素诱导的类固醇生成变化。