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首页> 外文期刊>Journal of biochemical and molecular toxicology >Preventive effect of (-)epigallocatechin gallate on lipids, lipoproteins, and enzymes of lipid metabolism in isoproterenol-induced myocardial infarction in rats.
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Preventive effect of (-)epigallocatechin gallate on lipids, lipoproteins, and enzymes of lipid metabolism in isoproterenol-induced myocardial infarction in rats.

机译:(-)表没食子儿茶素没食子酸酯对异丙肾上腺素诱发的心肌梗死大鼠脂质,脂蛋白和脂质代谢酶的预防作用。

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This article reports data on the preventive effect of (-)epigallocatechin gallate (EGCG) on lipid metabolism and lipoproteins in isoproterenol (ISO)-induced myocardial infarction (MI) in Wistar rats. The rats were induced MI by ISO (100 mg/kg) at an interval of 24 h for 2 days. EGCG (30 mg/kg) was given to rats as pretreatment for 21 days orally using an intragastric tube. EGCG significantly reduced the increased serum levels of cholesterol, triglycerides, and free fatty acids in the heart and serum phospholipids (PLs) in ISO-treated rats. It also significantly increased the reduced levels of heart PLs in ISO-induced rats. EGCG reduced the levels of serum low-density lipoprotein cholesterol and very low-density lipoprotein cholesterol and increased serum high-density lipoprotein (HDL)-cholesterol in ISO-treated rats. It also reduced the increased cholesterol/PL ratio and atherogenic index and significantly increased the reduced ratio of HDL-cholesterol/total cholesterol. Also EGCG significantly increased the reduced activity of lecithin cholesterol acyl transferase in ISO-treated rats. Thus, EGCG prevented the accumulation of lipids and altered the levels of lipoproteins in myocardial-infarcted rats.
机译:本文报告了数据(-)表没食子儿茶素没食子酸酯(EGCG)对异丙基肾上腺素(ISO)诱发的Wistar大鼠心肌梗死中脂质代谢和脂蛋白的预防作用。以ISO(100 mg / kg)在24小时的间隔内诱导大鼠MI,持续2天。使用胃内导管对大鼠进行EGCG(30 mg / kg)预处理,为期21天。 EGCG显着降低了接受ISO治疗的大鼠心脏和血清磷脂(PLs)的血清胆固醇,甘油三酸酯和游离脂肪酸水平升高。它还显着增加了ISO诱导的大鼠心脏PL的降低水平。 EGCG降低了ISO治疗大鼠的血清低密度脂蛋白胆固醇和极低密度脂蛋白胆固醇水平,并增加了血清高密度脂蛋白(HDL)-胆固醇。它还降低了胆固醇/ PL比和动脉粥样硬化指数的增加,并显着增加了HDL-胆固醇/总胆固醇的减少比。此外,EGCG还显着提高了用ISO治疗的大鼠体内卵磷脂胆固醇酰基转移酶的活性降低。因此,EGCG可以防止心肌梗塞大鼠脂质的积累并改变脂蛋白的水平。

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