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首页> 外文期刊>Canadian Journal of Physiology and Pharmacology >Effect of aminoguanidine on sciatic functional index, oxidative stress, and rate of apoptosis in an experimental rat model of ischemia-reperfusion injury
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Effect of aminoguanidine on sciatic functional index, oxidative stress, and rate of apoptosis in an experimental rat model of ischemia-reperfusion injury

机译:氨基胍对大鼠缺血再灌注损伤模型坐骨神经功能指数,氧化应激和凋亡速率的影响

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摘要

This study was conducted to investigate the potential protective effects of aminoguanidine (AG) on sciatic functional index (SFI), oxidative stress status, and apoptosis index using a rat model of experimental sciatic nerve ischemia-reperfusion injury (I/R). Treatment groups received 150 mg AG/kg body mass, 24 h after the induction of ischemia. After reperfusion for 2, 4, 7, 14, and 28 days, we evaluated measured SFI, plasma antioxidant enzymes, total antioxidant capacity (TAC), malondialdehyde (MDA), and index of apoptosis. SFI was significantly improved on the 7th and 14th day of reperfusion in the AG-treated groups. AG treatment resulted in the significant reduction of MDA levels on the 7th and 14th day of reperfusion. TAC was only increased after 7 days of reperfusion compared with the untreated group. SOD activity was decreased in both the untreated and AG-treated groups by comparison with the control, but did not show a significant change. GPx activity decreased only after 7 days of reperfusion. The maximal rate of apoptosis occurred on the 7th day of reperfusion. Treatment with AG significantly reduced this enhancement. AG exhibits positive effects against sciatic nerve I/R injury, possibly in part because of the protective effects of AG against apoptosis and I/R-induced oxidative stress.
机译:本研究使用实验性坐骨神经缺血再灌注损伤(I / R)大鼠模型研究了氨基胍(AG)对坐骨神经功能指数(SFI),氧化应激状态和细胞凋亡指数的潜在保护作用。缺血24小时后,治疗组接受150 mg AG / kg体重。再灌注2、4、7、14和28天后,我们评估了测得的SFI,血浆抗氧化酶,总抗氧化能力(TAC),丙二醛(MDA)和凋亡指数。在AG治疗组中,在再灌注的第7天和第14天,SFI明显改善。 AG治疗导致再灌注第7天和第14天MDA水平显着降低。与未治疗组相比,TAC仅在再灌注7天后增加。与对照组相比,未处理组和AG处理组的SOD活性均降低,但未显示出明显变化。仅在再灌注7天后,GPx活性下降。凋亡的最大速率发生在再灌注的第7天。 AG治疗显着降低了这种增强。 AG对坐骨神经I / R损伤表现出积极作用,可能部分是由于AG对细胞凋亡和I / R诱导的氧化应激的保护作用。

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