首页> 外文会议>International Symposium on Molecular Mechanism and Epochal Therapeutics for Ischemic Stroke and Dementia >The effects of a free radical scavenger, edaravone,combined with mild hypothermia on ischemic brain damage following transient middle cerebral artery occlusion in rats
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The effects of a free radical scavenger, edaravone,combined with mild hypothermia on ischemic brain damage following transient middle cerebral artery occlusion in rats

机译:自由基清除剂,依达拉夫酮与轻度体温过低的效果对大鼠瞬时中脑动脉闭塞后缺血性脑损伤

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3-Methyl-l-phenyi-pyrazolin-5-one (edaravone), a novel free radical scavenger, has been reported to reduce ischemic damage in rats subjected to transient focal ischemia. The aim of this study is, therefore, to investigate the effect of a combined therapy with edaravone and mild hypothermia at 35degC. Sprague-Dawley rats were subjected to middle cerebral artery (MCA) occluding using by an intraluminal suture technique for 2 h. The rats were reperfused for 24 h and decapitated for infarct and edema analysis. Animals were randomly divided into four groups: (I) vehicle+normothermia (control); (II) vehicle+mild hypothermia; (111) edaravone+normothermia; (IV) edaravone+mild hypothermia. Mild hypothermia alone had no reduction of the brain damage. The edaravone alone significantly reduced edema volume. The combined treatment with edaravone and mild hypothermia reduced both infarct and edema volume. In addition, this treatment provided for the best functional outcome. These results demonstrate that a free radical scavenger, edaravone, attenuates brain edema and that the combined therapy with edaravone and mild hypothermia significantly reduces not only edema but also infarct on transient focal cerebral ischemia in rats. The neuroprotective effects seen in this study may be due to the combined interaction of antiedema activity between edaravone and mild hypothermia, suppressing free radical production.
机译:据报道,3-甲基-L-苯吡唑啉-5-一(埃及龙酮),一种新的自由基清除剂,以降低经过瞬时局灶性缺血的大鼠缺血损伤。因此,本研究的目的是探讨组合治疗在35℃下与埃达拉夫松和轻度体温过低的影响。 Sprague-Dawley大鼠进行中间脑动脉(MCA)闭塞,通过腔内缝合技术进行2小时。将大鼠再熔化24小时并斩首梗塞和水肿分析。将动物随机分为四组:(i)载体+常温(控制); (ii)车辆+轻度体温过低; (111)埃达拉夫酮+常温; (iv)埃达拉夫酮+轻度体温过低。单独的轻度体温过低没有脑损伤。单独的埃达拉夫酮显着降低了水肿体积。依达拉夫酮和轻度体积的组合治疗还会减少梗塞和水肿体积。此外,这种处理提供了最佳功能结果。这些结果表明,自由基清除剂,埃达拉夫酮,衰减脑水肿,并具有赤纬和轻度体温过低的联合治疗不仅可以减少水肿,而且显着降低了大鼠短暂局灶性脑缺血的梗塞。本研究中所见的神经保护作用可能是由于赤纬抗疟疾和低温之间的抗纤维活动的组合相互作用,抑制自由基产生。

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