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首页> 外文期刊>European Journal of Pharmacology: An International Journal >Effects of gamma-glutamylcysteine ethyl ester on heart mitochondrial creatine kinase activity: involvement of sulfhydryl groups.
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Effects of gamma-glutamylcysteine ethyl ester on heart mitochondrial creatine kinase activity: involvement of sulfhydryl groups.

机译:γ-谷氨酰半胱氨酸乙酯对心脏线粒体肌酸激酶活性的影响:巯基的参与。

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摘要

To study the mechanism of the protective effect of gamma-glutamylcysteine ethyl ester, mitochondrial creatine kinase activity of rat heart was measured. Gamma-glutamylcysteine ethyl ester had a protective effect against the depression of creatine kinase activity induced by xanthine + xanthine oxidase or hydrogen peroxide. Gamma-glutamylcysteine ethyl ester also prevented the depression of creatine kinase activity induced by N-ethylmaleimide. It is suggested that the protective effect of gamma-glutamylcysteine ethyl ester is related to oxygen free radicals or to reduction of the sulfhydryl groups of the enzyme which were previously oxidized by oxygen free radicals.
机译:为了研究γ-谷氨酰半胱氨酸乙酯的保护作用机理,测定了大鼠心脏的线粒体肌酸激酶活性。 γ-谷氨酰半胱氨酸乙酯对黄嘌呤+黄嘌呤氧化酶或过氧化氢诱导的肌酸激酶活性的降低具有保护作用。 γ-谷氨酰半胱氨酸乙酯还可以防止N-乙基马来酰亚胺诱导的肌酸激酶活性下降。建议γ-谷氨酰半胱氨酸乙酯的保护作用与氧自由基或与酶的先前被氧自由基氧化的巯基的还原有关。

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