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首页> 外文期刊>International Journal of Molecular Sciences >Cardioprotective Effects of Glycyrrhizic Acid Against Isoproterenol-Induced Myocardial Ischemia in Rats
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Cardioprotective Effects of Glycyrrhizic Acid Against Isoproterenol-Induced Myocardial Ischemia in Rats

机译:甘草酸对异丙肾上腺素诱导的大鼠心肌缺血的心脏保护作用

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The aim of the present study was to look into the possible protective effects of glycyrrhizic acid (GA) against isoproterenol-induced acute myocardial infarction in Sprague-Dawley rats. The effect of three doses of glycyrrhizic acid in response to isoproterenol (ISO)-induced changes in 8-isoprostane, lipid hydroperoxides, super oxide dismutase and total glutathione were evaluated. Male Sprague-Dawley rats were divided into control, ISO-control, glycyrrhizic acid alone (in three doses-5, 10 and 20 mg/kg BW) and ISO with glycyrrhizic acid (in three doses) groups. ISO was administered at 85 mg/kg BW at two consecutive days and glycyrrhizic acid was administered intraperitoneally for 14 days. There was a significant increase in 8-isoprostane (IP) and lipid hydroperoxide (LPO) level in ISO-control group. A significant decrease in total superoxide dismutase (SOD) and total glutathione (GSH) was seen with ISO-induced acute myocardial infarction. Treatment with GA significantly increased SOD and GSH levels and decreased myocardial LPO and IP levels. Histopathologically, severe myocardial necrosis and nuclear pyknosis and hypertrophy were seen in ISO-control group, which was significantly reduced with GA treatment. Gycyrrhizic acid treatment proved to be effective against isoproterenol-induced acute myocardial infarction in rats and GA acts as a powerful antioxidant and reduces the myocardial lipid hydroperoxide and 8-isoprostane level.
机译:本研究的目的是探讨甘草酸(GA)对异丙肾上腺素诱发的Sprague-Dawley大鼠急性心肌梗塞的可能的保护作用。评估了三剂量甘草酸对异丙肾上腺素(ISO)诱导的8-异前列腺素,脂质氢过氧化物,超氧化物歧化酶和总谷胱甘肽变化的响应。将雄性Sprague-Dawley大鼠分为对照组,ISO对照,单独的甘草次酸(三个剂量-5、10和20 mg / kg BW)和具有甘草次酸的ISO(三个剂量)组。连续两天以85 mg / kg BW施用ISO,腹膜内施用甘草酸14天。 ISO对照组的8-异前列腺素(IP)和脂质过氧化氢(LPO)水平显着增加。在ISO诱发的急性心肌梗死中,总超氧化物歧化酶(SOD)和总谷胱甘肽(GSH)明显降低。 GA治疗可显着提高SOD和GSH水平,并降低心肌LPO和IP水平。在组织病理学上,在ISO对照组中观察到严重的心肌坏死和核固缩和肥大,GA治疗显着降低了心肌坏死和核肥大。甘草酸治疗被证明对大鼠异丙肾上腺素引起的急性心肌梗塞有效,而GA则是一种强大的抗氧化剂,可降低心肌脂质过氧化氢和8-异丙肾上腺素的水平。

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