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糖尿病神经性疼痛对大鼠脊髓星形胶质细胞的影响 被引量:1

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摘要 目的:观察糖尿病神经性疼痛对大鼠脊髓星形胶质细胞活化状态的影响。方法:Wistar大鼠30只,随机分为对照组(n=10)。其余腹腔单次注射链脲佐菌素(80mg/kg),对照组腹腔注射生理盐水。2周后采眼眶内眦取血测定血糖值,血糖值大于16.7mmol/L大鼠作为糖尿病模型。4周后测定大鼠热板反应潜伏时间作为痛阈指标,选取痛阈最低的10只作为糖尿病神经性疼痛大鼠模型。取脊髓腰段组织制成切片。用神经胶质纤维酸性蛋白(GFAP)标记星形胶质细胞(SABC法),观察星形胶质细胞在脊髓背角的分布;采用多媒体彩色病理图像分析系统检测阳性面积(Area)和灰度值(Gray Scale)。结果:实验组痛阈较对照组明显降低(P<0.01),实验组GFAP染色阳性脊髓星形胶质细胞面积(Area)和灰度值(Gray Scale)水平较对照组明显升高(P<0.01)。结论:糖尿病神经性疼痛时脊髓星形胶质细胞水平升高(P<0.01),说明脊髓星形胶质细胞在糖尿病神经性疼痛的发展、维持中具有一定意义。
作者 杨刚 简道林
出处 《包头医学》 2011年第4期199-200,共2页 Journal of Baotou Medicine
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