知母对糖尿病小鼠脑内 APP和 BACE1蛋白表达的影响
Information on Traditional Chinese Medicine(2015)
Abstract
目的:观察知母水煎液对链脲佐菌素( STZ)诱发的糖尿病小鼠模型脑内β-淀粉样蛋白前体蛋白(APP)、淀粉样前体蛋白β-分泌酶(BACE1)蛋白表达的影响,以揭示知母改善糖尿病模型小鼠认知功能的可能机制。方法:采用腹腔注射STZ法造成BALB/C小鼠糖尿病模型,随机分为模型组、知母高剂量组、知母低剂量组、阳性药盐酸二甲双胍组,以正常小鼠作为对照组。各组连续给药30天后,利用Western blot法检测各组小鼠脑中APP和BACE1蛋白的表达情况。结果:与对照组相比,模型组APP和BACE1蛋白表达明显升高( P<0.05);与模型组相比,给药组APP和BACE1蛋白表达显著下降(P<0.05)。结论:知母水煎液能降低由STZ诱发的糖尿病小鼠脑内APP和BACE1蛋白表达的升高。
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Key words
Rhizoma Anemarrhenae,Diabetes,Cognitive dysfunction,APP,BACE1
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