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不同水平高血糖对大鼠局灶脑缺血损伤的影响 被引量:1

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摘要 目的观察不同水平高血糖对大鼠局灶脑缺血的影响。方法将23只成年雄性大鼠随机分为正常血糖组(N)6只、高血糖1组(H1)6只、高血糖2组(H2)11只。采用线栓法建立90 min局灶脑缺血模型(middle cerebral artery occlusion,MCAO),缺血开始后5 min、50 min、95 min三个时间点,通过腹腔注射不同剂量50%葡萄糖溶液使其血糖分别维持在10 mmol/L(H1)和20 mmol/L(H2)。正常血糖组(N)在相同时间点注射生理盐水作为对照。脑缺血后24 h采用mNSS评分和rotarod评估神经损伤严重程度,TTC染色检测脑梗死面积。结果与N组相比,H2组mNSS和rotarod评分更差,脑梗死面积增加24.26%(P<0.01)。H1组与N组比较,mNSS、rotarod评分以及脑梗死面积无显著差异(P>0.05)。结论卒中后严重高血糖(20 mmo/L)显著增大脑梗死面积,加重神经功能损伤,而轻度高血糖(10 mmol/L)对脑梗死面积和神经功能损伤无显著影响。
出处 《中国神经精神疾病杂志》 CAS CSCD 北大核心 2014年第5期309-313,共5页 Chinese Journal of Nervous and Mental Diseases
基金 国家自然科学基金(编号:81301098) 广州市海珠区科技计划项目(编号:2011-YL-06)
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