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首页> 外文期刊>Journal of toxicology and environmental health, Part A >Mechanisms Associated with Protective Effects of Ginkgo Biloba Leaf Extracton in Rat Cerebral Ischemia Reperfusion Injury
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Mechanisms Associated with Protective Effects of Ginkgo Biloba Leaf Extracton in Rat Cerebral Ischemia Reperfusion Injury

机译:与Ginkgo Biloba叶提取物在大鼠脑缺血再灌注损伤中的保护作用相关的机制

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摘要

Cerebral infarction occurs as a consequence of cerebral ischemia-reperfusion injury (CIRI). Ginkgo biloba leaf extract (GbE) is composed predominantly of active ingredients such as flavonoids and terpene lactones and often used to treat cerebrovascular diseases. However, the mechanisms underlying the use of this herbal extract to treat cerebrovascular-mediated damage are not known. The aim of this study was to examine the effectiveness of administration GbE to ameliorate the observed consequences of CIRI. The following parameters were measured: (1) behavioral score (2) infarct area (3) the content of serum malondialdehyde (MDA) as well as activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) and (4) interleukin 6 (IL-6) and tumor necrosis factor-alpha (TNF-alpha) expression levels in the infarcted brain tissue. Data demonstrated that treatment with GbE to CIRI rats resulted in significant reduction in cerebral-infarcted area associated with improvement in behavioral score. GbE was found to decrease serum MDA levels concomitant with elevated activity levels of SOD and GSH-PX. Immunohistochemistry and Western blot analysis showed that GbE significantly lowered the levels of IL-6 and TNF-alpha in the infarcted brain tissue. Data suggest that GbE may be therapeutically effective in improving behavioral score in CIRI rats through reduction of oxidative stress and anti-inflammation in the cerebral infarction region.
机译:作为脑缺血再灌注损伤(CIRI)的结果发生脑梗塞。 Ginkgo Biloba叶提取物(GBE)主要由活性成分如黄酮类和萜烯内酯组成,通常用于治疗脑血管疾病。然而,依赖于使用这种草药提取物治疗脑血管介导的损害的机制是不名的。本研究的目的是探讨给予努力改善CIRI所观察到的后果的有效性。测量以下参数:(1)行为得分(2)梗塞区域(3)血清丙炔醛(MDA)的含量以及超氧化物歧化酶(SOD)和谷胱甘肽过氧化物酶(GSH-PX)和(4)白细胞介素的活性梗死脑组织中的6(IL-6)和肿瘤坏死因子-α(TNF-α)表达水平。数据证明,与CiRi大鼠的GBE治疗导致与行为分数提高相关的脑梗塞区域显着降低。发现GBE伴随着SOD和GSH-PX的活性水平升高的血清MDA水平。免疫组织化学和Western印迹分析表明,GBE显着降低了梗塞脑组织中IL-6和TNF-α的水平。数据表明,通过降低脑梗死区中的氧化应激和抗炎,GBE可能治疗有效地改善Ciri大鼠的行为得分。

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