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大鼠急性羰基镍中毒各脏器谷胱甘肽过氧化物酶水平动态观察 被引量:6

Dynamic observation on GSH-Px contents in rats induced by acute nickel carbonyl poisoning
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摘要 目的探讨大鼠急性羰基镍中毒各脏器谷胱甘肽过氧化物酶(GSH-Px)活力变化。方法 SD大鼠200只,分为低、中、高剂量羰基镍实验组、氯气染毒对照组和正常对照组,每组各40只。3个实验组分别给予20、135、250 mg/m3羰基镍染毒,氯气染毒对照组给予250 mg/m3氯气染毒,正常对照组未予特殊处理。静态吸入染毒,染毒时间为30 min,每组染毒1次,染毒后1、2、3和7 d取材,应用化学比色法测定肺、肝、肾、心和脾脏GSH-Px活力。结果在低、中、高剂量羰基镍染毒条件下,大鼠肺、肝、肾、心GSH-Px活力均有下降,以高剂量羰基镍实验组GSH-Px下降最显著(P<0.05);不同取材时间GSH-Px活力比较,染毒后3 d脏器GSH-Px活力下降最明显(P<0.05);氯气染毒后各脏器GSH-Px活力均显著下降(P<0.05)。结论急性羰基镍中毒可诱发组织氧化损伤,降低机体清除自由基的能力,并存在组织差异。
出处 《中国职业医学》 CAS 北大核心 2012年第4期293-296,共4页 China Occupational Medicine
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参考文献12

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