Department of Biochemistry, Faculty of Science, Alexandria University, Alexandria, Egypt.
Biomed Res Int. 2013;2013:510879. doi: 10.1155/2013/510879. Epub 2013 Jan 13.
The aim of this study was to evaluate the pretreatment hepatoprotective effect of the extract of marine-derived fungus Trichurus spiralis Hasselbr (TS) isolated from Hippospongia communis sponge on hepatotoxicity. Twenty-eight male Sprague-Dawley rats were divided into four groups (n = 7). Group I served as -ve control, group II served as the induced group receiving subcutaneously for seven days 0.25 mg heavy metal mixtures, group III received (i.p.) TS extract of dose 40 mg for seven days, and group IV served as the protected group pretreated with TS extract for seven days as a protection dose, and then treated with the heavy metal-mixture. The main pathological changes within the liver after heavy-metal mixtures administrations marked hepatic damage evidenced by foci of lobular necrosis with neutrophilic infiltration, adjacent to dysplastic hepatocytes. ALT and AST measurements show a significant increase in group II by 46.20% and 45.12%, respectively. Total protein, elevated by about 38.9% in induction group compared to the -ve control group, in contrast to albumin, decreased as a consequence of metal administration with significant elevation on bilirubin level. The results prove that TS extract possesses a hepatoprotective property due to its proven antioxidant and free-radical scavenging properties.
本研究旨在评价海洋来源真菌 Trichurus spiralis Hasselbr(TS)提取物对重金属混合物诱导的肝毒性的预处理肝保护作用。将 28 只雄性 Sprague-Dawley 大鼠分为四组(n = 7)。第 I 组作为阴性对照,第 II 组作为接受皮下注射七天 0.25 mg 重金属混合物的诱导组,第 III 组接受 40 mg TS 提取物连续七天腹腔注射,第 IV 组作为预处理组,用 TS 提取物连续七天预处理作为保护剂量,然后用重金属混合物处理。重金属混合物给药后肝脏内的主要病理变化表明肝损伤明显,表现为中性粒细胞浸润的小叶坏死灶,邻近异型性肝细胞。ALT 和 AST 测量显示,第 II 组分别增加了 46.20%和 45.12%。与阴性对照组相比,诱导组的总蛋白升高约 38.9%,而白蛋白则因金属给药而降低,胆红素水平显著升高。结果证明 TS 提取物具有肝保护作用,这与其已被证明的抗氧化和自由基清除特性有关。