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司来吉兰对帕金森病模型大鼠结肠酪氨酸羟化酶及Bax表达的影响 被引量:1

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摘要 目的:观察司来吉兰对帕金森病(PD)模型大鼠结肠功能障碍及结肠酪氨酸羟化酶(TH)及Bax表达的影响。方法:健康雄性SD大鼠60只随机分为对照组、PD组及治疗组,各20只,每组均设4 d及8 d共2个时间点。采用颈背部皮下注射鱼藤酮制备PD模型大鼠,模型制备成功后,治疗组每日灌胃司来吉兰0.5 mg/kg,直至试验时间点。对照组及PD组每只每日均连续灌胃等体积生理盐水至试验时间点。分别于治疗后4 d、8d测定1 h粪便排出量及含水量,应用免疫组化法S-P法及Western blotting检测TH及Bax在大鼠结肠组织中的表达情况。结果:PD组和治疗组大鼠1 h粪便排出量及含水量低于对照组(P<0.05);治疗组大鼠1 h粪便排出量及含水量高于PD组(P<0.05);治疗8 d后治疗组大鼠1 h粪便排出量及含水量高于同组治疗4 d时(P<0.05)。PD组和治疗组各时间点上TH光密度值(IOD)及TH蛋白表达低于对照组(P<0.05),Bax IOD及Bax蛋白表达高于对照组(P<0.05);治疗组各时间点TH IOD及TH蛋白表达高于PD组(P<0.05),Bax IOD及Bax蛋白表达低于PD组(P<0.05);治疗8 d后治疗组TH IOD及TH蛋白表达高于同组治疗4 d时,Bax IOD及Bax蛋白表达低于同组治疗4 d时(均P<0.05)。结论:PD大鼠结肠组织中的TH表达降低,而Bax表达增加。司来吉兰可改善PD大鼠结肠功能障碍,其作用机制可能与其减轻PD模型大鼠结肠多巴胺能神经元的损伤和抑制Bax表达有关。
出处 《神经损伤与功能重建》 2015年第3期245-247,共3页 Neural Injury and Functional Reconstruction
基金 唐山市科学技术研究与发展指导计划(No.13130292a)
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