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Effects of purified herbal extract of Salvia miltiorrhiza on ischemic rat myocardium after acute myocardial infarction

机译:丹参提取物对急性心肌梗死后缺血大鼠心肌的影响。

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In the current study, we compared purified Salvia miltiorrhiza extract (PSME) with Angiotensin-converting enzyme inhibitor, Ramipril, in in vitro experiments and also in vivo using animal model of myocardial infarction. PSME was found to have a significantly higher trolox equivalent antioxidant capacity which indicated a great capacity for scavenging free radicals. PSME could also prevent pyrogallo red bleaching and DNA damage.After 2 weeks treatment with PSME or Ramipril, survival rates of rats with experimental myocardial infarction were marginally increased (68.2% and 71.4%) compared with saline (61.5%). The ratios of infarct size to left ventricular size in both PSME-and Ramipril-treated rats were significantly less than that in the saline-treated group. Activity of cardiac antioxidant enzyme superoxide dismutase (SOD) was significant higher while level of Thiobarbituric acid-reactive substances (TBARs) was lower in the PSME treated group. Purified and standardized Chinese herb could provide an alternative regimen for the prevention of ischemic heart disease. (c) 2005 Elsevier Inc. All rights reserved.
机译:在本研究中,我们在体外实验中以及在使用心肌梗死动物模型的体内实验中,将纯化的丹参提取物(PSME)与血管紧张素转化酶抑制剂雷米普利进行了比较。发现PSME具有明显更高的trolox当量抗氧化剂能力,这表明其清除自由基的能力很大。 PSME还可以预防焦斑红褪色和DNA损伤。用PSME或雷米普利治疗2周后,实验性心肌梗死大鼠的存活率与生理盐水(61.5%)相比略有增加(68.2%和71.4%)。在接受PSME和雷米普利治疗的大鼠中,梗塞面积与左心室尺寸的比率均显着低于生理盐水治疗组。在PSME治疗组中,心脏抗氧化酶超氧化物歧化酶(SOD)的活性明显较高,而硫代巴比妥酸反应性物质(TBARs)的水平较低。纯化和标准化的中草药可以为预防缺血性心脏病提供替代方案。 (c)2005 Elsevier Inc.保留所有权利。

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