首页> 外文期刊>Journal of biochemical and molecular toxicology >Protective Effects of 7-Hydroxycoumarin on Dyslipidemia and Cardiac Hypertrophy in Isoproterenol-Induced Myocardial Infarction in Rats
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Protective Effects of 7-Hydroxycoumarin on Dyslipidemia and Cardiac Hypertrophy in Isoproterenol-Induced Myocardial Infarction in Rats

机译:7-羟基香豆素对异丙肾上腺素诱发的大鼠心肌梗死血脂异常和心肌肥大的保护作用

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摘要

This study evaluates the protective effects of 7-hydroxycoumarin (7-HC) on dyslipidemia and cardiac hypertrophy in isoproterenol (ISO) induced myocardial infarction (MI) in rats. Rats were pre- and co treated with 7-HC (16 mg/kg) daily for 8 days. ISO (100 mg/kg) was subcutaneously injected into rats on seventh and eighth days to induce MI. Increased activity/levels of serum creatine kinase-MB (CK-MB), troponin-T, plasma lipid peroxidation products, and altered levels of lipids in the serum and heart and serum lipoproteins were noted in ISO-induced rats. ISO-induced myocardial infarcted rats revealed increased hypertrophy (cardiac and left ventricular) and hepatic 3-hydroxyl 3-methylglutaryl-coenzyme-A reductase (HMG-CoA reductase) activity. Pre and cotreatment with 7-HC revealed significant protective effects on all the biochemical parameters evaluated. The in vitro study demonstrated its free radical scavenging property. Thus, 7-HC protects ISO-induced MI in rats by its free radical scavenging and antihyperlipidaemic and antihypertrophic properties.
机译:这项研究评估了7-羟基香豆素(7-HC)对异丙肾上腺素(ISO)诱发的大鼠心肌梗死(MI)中血脂异常和心脏肥大的保护作用。每天用7-HC(16 mg / kg)对大鼠进行预处理和联合治疗,共8天。在第7天和第8天将ISO(100 mg / kg)皮下注射到大鼠中,以诱发MI。在ISO诱导的大鼠中,发现血清肌酸激酶-MB(CK-MB),肌钙蛋白-T,血浆脂质过氧化产物的活性/水平增加,以及血清,心脏和血清脂蛋白中脂质的水平改变。 ISO诱发的心肌梗塞大鼠显示出肥大(心肌和左心室)和肝3-羟基3-甲基戊二酰辅酶A还原酶(HMG-CoA还原酶)活性增加。用7-HC进行预处理和共处理对所有评估的生化参数显示出显着的保护作用。体外研究证明了其清除自由基的特性。因此,7-HC通过清除自由基,抗高血脂和抗肥大特性来保护ISO诱导的MI。

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