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维生素E可改善黄曲霉毒素诱导的小鼠附睾改变。

Vitamin E ameliorates aflatoxin-induced alterations in the epididymis of mice.

作者信息

Verma Ramtej J, Nair Anita, Mathuria Neeta

机构信息

Department of Zoology, University School of Sciences, Gujarat University, Ahmedabad, India.

出版信息

Acta Pol Pharm. 2008 May-Jun;65(3):331-7.

Abstract

The present investigation was an attempt to evaluate the effect of aflatoxin on biochemical and histopathological changes in the epididymis of mice and its possible amelioration on pre-treatment with vitamin E. Adult male albino mice were orally administered with 25 and 50 mg of aflatoxin/animal/day (750 and 1500 mg/kg body weight) for 45 days. Epididymis was isolated and processed for biochemical analysis. As compared with the control, absolute and relative epididymal weights were significantly reduced in aflatoxin-treated mice. Aflatoxin treatment caused significant, dose-dependent reduction in protein and sialic acid contents in caput and cauda epididymis than that of vehicle control. While activities of succinic dehydrogenase and adenosine triphosphatase were significantly reduced, acid phosphatase activity was significantly higher in caput and cauda epididymis of aflatoxin-treated mice than that of vehicle control. Pyknosis of epithelial cell nuclei, disorganization of epithelium, clumping of stereocilia and lumen devoid of sperms in caput and cauda epididymis were observed. Thus, pre-treatment with vitamin E (2 mg/0.2 mL olive oil/ animal/day) significantly ameliorated aflatoxin-induced changes, measured by biochemical and histopathological parameters.

摘要

本研究旨在评估黄曲霉毒素对小鼠附睾生化和组织病理学变化的影响,以及维生素E预处理对其可能的改善作用。成年雄性白化小鼠每天口服25和50毫克黄曲霉毒素/只(750和1500毫克/千克体重),持续45天。分离附睾并进行生化分析。与对照组相比,黄曲霉毒素处理组小鼠的附睾绝对重量和相对重量均显著降低。黄曲霉毒素处理导致附睾头和附睾尾中蛋白质和唾液酸含量比载体对照组显著降低,且呈剂量依赖性。同时,黄曲霉毒素处理组小鼠附睾头和附睾尾中琥珀酸脱氢酶和三磷酸腺苷酶的活性显著降低,而酸性磷酸酶活性显著高于载体对照组。观察到附睾头和附睾尾上皮细胞核固缩、上皮组织紊乱、静纤毛聚集以及管腔无精子。因此,维生素E(2毫克/0.2毫升橄榄油/只/天)预处理通过生化和组织病理学参数测量,显著改善了黄曲霉毒素诱导的变化。

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