机构地区:[1]河北省人民医院神经内科,石家庄050051 [2]河北省人民医院老年病一科
出 处:《中华行为医学与脑科学杂志》2013年第10期873-876,共4页Chinese Journal of Behavioral Medicine and Brain Science
基 金:河北省自然科学基金资助项目(C2009001483)
摘 要:目的探讨盐酸多奈哌齐对血管性痴呆小鼠海马CAl区CalpainI-Cdk5/p25通路表达的影响。方法小鼠随机分为假手术组、模型组和盐酸多奈哌齐治疗组。分别于脑缺血一再灌注后第4周、6周和第8周应用免疫组化观察海马CAl区CalpainI的表达,Western-blot方法测定Cdk5/p25的表达。结果术后4周、6周和8周时模型组小鼠海马CAl区CalpainI的表达分别为(0.098±0.009)、(O.129±0.01)、(0.116±0.01),显著高于假手术组的(0.03±0.003)、(0.031±0.003)、(0.029±0.003)(P〈0.05);模型组Cdk5的表达为(0.54±0.05)、(0.73±0.07)、(0.7±0.06),假手术组为(0.23±0.02)、(0.31±0.02)、(0.33±0.02),差异有显著性(P〈0.05);模型组p25的表达分别为(0.44-4-0.04)、(0.51±0.04)、(0.55±0.06),显著高于假手术组的(0.19±0.02)、(0.24±0.02)、(0.2±0.02)(P〈0.05)。多奈哌齐治疗组小鼠在术后4周、6周和8周时海马CAl区CalpainI表达为(0.041±0.004)、(0.054-4-_0.004)、(0.046±0.003),较模型组显著降低俨〈0.05),Cdk5的表达为(0。28±0.02)、(0.33±0.03)、(0。38±0.02),p25的表达为(0.26±0.02)、(0.25±0.03)、(0,21±0,02),分别显著低于模型组小鼠(P〈0.05)。结论盐酸多奈哌齐改善小鼠学习和记忆的能力可能与其降低CalpainI-Cdk5/p25通路的表达有关。Objective To investigate the effect of donepezil hydrochloride on the expression of Calpain I- CdkS/p25 pathway in the hippocampal CA1 area by cerebral ischemia and reperfusion in mice. Methods Mice were divided into model group, sham-operated group and donepezil-treated group. The expression of Calpain I in hippocampal CA1 area was measured by immunohistochemistry staining respectively at 4,6 and 8 weeks post cere- bral isehemia and reperfusion. Western blot was used to evaluate Cdk5 and p25 protein expression. Results The abilities of learning and memory performance was damaged significantly at 4,6 and 8 weeks after surgery compared to sham-operated group (P 〈 0.05 ). The expression of Calpain I of model group were (0.098 + 0. 009 ) , (0. 129 ± 0.01 ), ( 0.116 ± 0.01 ), which were higher than that of sham-operated group ( 0.03 ± 0.003 ), ( 0.031 ± 0.003 ), (0.029 ±0.003)and there was significant difference (P 〈 0.05). The expression of Cdk5 in model group was (0.54 ~0.05) ,(0. 73 :tO. 07), (0.7 ±0. 06) ,which were higher than that of sham-operated group(0. 23 ± 0.02 ), (0.31 ± 0.02 ), (0.33 ± 0.02 ) and there was significant difference (P 〈 0.05 ). The expression of p25 in model group was ( 0.44 ± 0.04), ( 0.51 ± 0.04 ), ( 0.55±0.06 ), which were higher than that of sham-operated group (0.19± 0.02 ), ( 0.24 ± 0.02 ), (0.2 ± 0.02 ) and there was significant difference (P 〈 0.05 ). The expres- sion of Calpain I of donepezil-treated group was ( 0. 041 ± 0. 004 ), ( 0. 054± 0. 004 ), ( 0. 046 ± 0. 003 ), which were lower than that of model group. The expression of Cdk5 was(0.28 ±0. 02) , (0.33 ±0.03) , (0.38±0.02) , and expression of p25 was ( 0.26 ± 0.02 ) , ( 0.25 ±0. 03 ) , ( O. 21±0.02 ) , which were lower than that of model group respectively(P〈 0.05 ). Cortdusion Donepezil hydrochloride probably improve the learning and memory a- bilities by redu
关 键 词:血管性痴呆 盐酸多奈哌齐 卡配因I 细胞周期依赖性蛋白激酶5
分 类 号:R749.13[医药卫生—神经病学与精神病学]
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