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首页> 外文期刊>Journal of pharmaceutical care. >Propolis attenuates oxidative injury in brain and lung of nitric oxide synthase inhibited rats
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Propolis attenuates oxidative injury in brain and lung of nitric oxide synthase inhibited rats

机译:蜂胶减轻一氧化氮合酶抑制的大鼠脑和肺的氧化损伤

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Background: The blocking of nitric oxide synthase (NOS) activity may reason vasoconstriction with formation of reactive oxygen species. Propolis has biological and pharmacological properties, such as antioxidant. The aim of this study was to examine the antioxidant effects of propolis which natural product on biochemical parameters in brain and lung tissues of acute nitric oxide synthase inhibited rats by Nω-nitro-L-arginine methyl ester (L-NAME).Methods: Rats have been received L-NAME (40 mg/kg, intraperitoneally), NOS inhibitor for 15 days to produce hypertension and propolis (200mg/kg, by gavage) the lastest 5 of 15 days.Results: There were the increase (P<0.001) in the malondialdehyde levels in the L-NAME treatment groups when compared to control rats, but the decrease (P<0.001) in the catalase activities in both brain and lung tissues. There were statistically changes (P<0.001) in these parameters of L-NAME+propolis treated rats as compared with L-NAME-treated group.Conclusion: The application of L-NAME to the Wistar rats resulted in well developed oxidative stress. Also, propolis may influence endothelial NO production. Identification of such compounds and characterisation of their cellular actions may increase our knowledge of the regulation of endothelial NO production and could provide valuable clues for the prevention or treatment of hypertensive diseases and oxidative stress.
机译:背景:一氧化氮合酶(NOS)活性的阻断可能导致血管收缩并形成活性氧。蜂胶具有生物和药理特性,例如抗氧化剂。本研究旨在探讨天然产物蜂胶对Nω-硝基-L-精氨酸甲酯(L-NAME)抑制一氧化氮合酶抑制大鼠脑和肺组织生化指标的抗氧化作用。连续15天接受L-NAME(40 mg / kg,腹膜内),NOS抑制剂治疗15天,产生高血压和蜂胶(200mg / kg,经管饲)结果:增加(P <0.001与对照组相比,L-NAME治疗组的丙二醛水平降低了,但脑和肺组织中的过氧化氢酶活性却降低了(P <0.001)。与L-NAME治疗组相比,L-NAME +蜂胶治疗组大鼠的这些参数有统计学上的变化(P <0.001)。结论:将L-NAME应用于Wistar大鼠导致了良好的氧化应激。同样,蜂胶可能会影响内皮一氧化氮的产生。此类化合物的鉴定及其细胞作用的表征可能会增加我们对内皮一氧化氮产生调控的知识,并可能为预防或治疗高血压疾病和氧化应激提供有价值的线索。

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