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首页> 外文期刊>Journal of biochemical and molecular toxicology >Beneficial effect of nitric oxide synthase inhibitor on hepatotoxicity induced by allyl alcohol.
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Beneficial effect of nitric oxide synthase inhibitor on hepatotoxicity induced by allyl alcohol.

机译:一氧化氮合酶抑制剂对烯丙醇诱导的肝毒性的有益作用。

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摘要

The effect of aminoguanidine (a selective inhibitor of inducible nitric oxide synthase) on allyl alcohol-induced liver injury was assessed by the measurement of serum ALT and AST activities and histopathological examination. When aminoguanidine (50-300 mg/kg, i.p.) was administered to mice 30 min before a toxic dose of allyl alcohol (75 microL/kg, i.p.), significant changes related to liver injury were observed. In the presence of aminoguanidine the level of ALT and AST enzymes were significantly decreased. All symptoms of liver necrosis produced by allyl alcohol toxicity almost completely disappeared when animals were pretreated with aminoguanidine at 300 mg/kg. Depletion of hepatic glutathione as a consequence of allyl alcohol metabolism was minimal in mice pretreated with aminoguanidine at 300 mg/kg. It was found that the inhibition of toxicity was not due to alteration in allyl alcohol metabolism since aminoguanidine did not effect alcohol dehydrogenase activity both in vivo and in vitro.
机译:通过测量血清ALT和AST活性以及组织病理学检查来评估氨基胍(诱导型一氧化氮合酶的选择性抑制剂)对烯丙醇诱导的肝损伤的作用。当在毒性剂量的烯丙醇(75 microL / kg,i.p.)之前30分钟对小鼠施用氨基胍(50-300 mg / kg,i.p.),观察到与肝损伤有关的显着变化。在氨基胍存在下,ALT和AST酶的水平显着降低。当用300 mg / kg氨基胍预处理动物时,烯丙醇毒性产生的所有肝坏死症状几乎完全消失。在用300 mg / kg氨基胍预处理的小鼠中,由于烯丙醇代谢,肝谷胱甘肽的消耗极少。已发现毒性的抑制不是由于烯丙醇代谢的改变,因为氨基胍在体内和体外均不影响醇脱氢酶活性。

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