摘要
[Objective] This study aimed to investigate the protective effect of Pueraria lobota extracts on mitochondria damage of liver. [Method] The liver mitochondria injury was induced by Vc-Fe2＋ , and the influences of Pueraria lobota extracts on mitochondria ATPase activity, mitochondria swelling and protein carbonyl content were measured. In addition, the lipid peroxidation in liver mitochondria was induced by H2O2-Fe2＋ to analyze the influence of Pueraria lobota extracts on MDA content. Futhermore, NBT method was used to evaluate the inhibitory function of Pueraria lobota extracts on the superoxide anion. [Result] The results showed that Pueraria lobota extracts could significantly inhibit mitochondria oxidative damage,prevent mitochondria swelling and ATPase activity reduction,decrease protein carbonyl level,and effectively scavenge superoxide anion produced by mitochondria, indicating that Pueraria lobota extracts can protect rat liver mitochondria from oxidative damage. [Conclusion] This study provided theoretical basis for investigating the pharmacological functions of Pueraria lobota.
[目的]研究葛根提取物对肝线粒体损伤的保护作用。[方法]用Vc-Fe2+诱导线粒体损伤,测定葛根提取物对ATP酶的活性、线粒体肿胀度和蛋白质羰基含量的影响;用H2O2-Fe2+诱导线粒体脂质过氧化,测定葛根提取物对丙二醛含量的影响;用NBT法测定葛根提取物抑制线粒体产生超氧阴离子的作用。[结果]葛根提取物能显著地抑制线粒体的氧化损伤,并能防止线粒体肿胀和ATP酶活力下降,降低蛋白质羰基化水平,以及具有有效清除线粒体产生的超氧阴离子自由基的作用。[结论]该试验为葛根药理作用的研究提供了理论依据。
基金
Supported by National Natural Science Foundation of China(20175012)~~
