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外源性CO对MPTP所致小鼠多巴胺能神经元损伤的保护作用

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摘要 目的探讨吸入低浓度外源性一氧化碳(Carbon monoxide CO)对帕金森模型鼠黑质多巴胺神经元的保护作用。方法24只雄性C57BL/6J小鼠随机分为对照组8只,模型组8只,一氧化碳吸入组8只。小鼠皮下注射1-甲基-4-苯基1,2,3,6四氢吡啶(MPTP)复制帕金森病模型,给予吸入外源性低浓度CO干预,利用尼氏染色技术和免疫组化染色技术,观察黑质区神经元形态学和多巴胺神经元数量变化,并进行统计学分析。结果尼氏染色结果显示:一氧化碳吸入组黑质区神经元胞浆中蓝染斑块状物质较对照组明显减少,但明显多于PD模型组,以PD模型组黑质区神经元胞浆中蓝染斑块状物质减少或脱失最为明显;一氧化碳吸入组TH阳性神经元数目较对照组明显减少(P<0.05),但显著高于PD模型组(P<0.05)。结论吸入外源性CO可显著减少MPTP介导的黑质多巴胺神经元损伤。
作者 孟令刚
出处 《中国实用医药》 2007年第31期50-52,共3页 China Practical Medicine
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