The present study investigated the effects of Fujian tablet, a Chinese medicine compound that can nourish liver and kidney, on corticospinal tract plasticity and cervical cord microenvironment in rats with focal cereb...The present study investigated the effects of Fujian tablet, a Chinese medicine compound that can nourish liver and kidney, on corticospinal tract plasticity and cervical cord microenvironment in rats with focal cerebral ischemia. Results showed that motor function of rats with right proximal middle cerebral artery occlusion was significantly improved following treatment with Fujian tablet, 9 g crude drug/kg. Anterograde tracing revealed significantly increased biotinylated dextran amine expression in the denervated （left） side of the cervical cord （C4-6） following Fujian tablet treatment, and significantly decreased Nogo-A mRNA expression was detected in the denervated side of the cervical cord （C4-6） using in situ hybridization. Pearson＇s correlation analysis showed a negative correlation between biotinylated dextran amine and Nogo-A mRNA expression （r = -0.943, P 〈 0.01）. Results demonstrated that Fujian tablet can promote corticospinal tract plasticity possibly through the inhibitory effect on Nogo-A mRNA expression in the cervical spinal cord, thereby improving motor dysfunction.展开更多
目的:观察复健片对脑梗死大鼠脑组织RhoA、ROCK2、MLCP蛋白的影响,探讨其解除神经再生抑制的机制。方法:30只SD大鼠随机分为正常对照组(5只)、假手术组(5只)、模型组(10只)和药物组(10只)。用改良的Longa E Z法制备大脑中动脉阻塞大鼠模...目的:观察复健片对脑梗死大鼠脑组织RhoA、ROCK2、MLCP蛋白的影响,探讨其解除神经再生抑制的机制。方法:30只SD大鼠随机分为正常对照组(5只)、假手术组(5只)、模型组(10只)和药物组(10只)。用改良的Longa E Z法制备大脑中动脉阻塞大鼠模型,药物组灌胃给予复健片水溶液,余各组分别灌胃给予同剂量的蒸馏水。用Western Blot观察模型大鼠梗死周边区脑RhoA、ROCK2、MLCP蛋白的表达。结果:药物组大鼠脑组织中RhoA、ROCK2、MLCP表达虽然较正常对照组增多,但较模型组明显减少,二者之间有显著性差异(P<0.01)。结论:复健片可抑制Rho/ROCK通路信号因子在脑梗死后的表达,从而促进神经发生。展开更多
目的:观察复健片对大脑中动脉闭塞(MCAO)模型大鼠未损伤侧大脑皮质生长相关蛋白43(GAP-43)表达的影响,探讨复健片促进未损伤侧大脑重塑的分子基础。方法:110只SD雄性大鼠,按随机数字表法随机分为假手术组20只和造模组90只。根据处死时...目的:观察复健片对大脑中动脉闭塞(MCAO)模型大鼠未损伤侧大脑皮质生长相关蛋白43(GAP-43)表达的影响,探讨复健片促进未损伤侧大脑重塑的分子基础。方法:110只SD雄性大鼠,按随机数字表法随机分为假手术组20只和造模组90只。根据处死时间点及干预方法不同,假手术组及模型组各分为术后1周、2周、3周、4周和5周五个亚组,药物组分为术后2周、3周、4周和5周四个亚组。造模组采用线栓法制备大鼠右侧大脑中动脉永久性闭塞(MCAO)模型,药物组术后1周末按5.9 m L/kg给予复健片浓缩液灌胃,采用横木行走实验(BWT)评定各组大鼠运动功能;TTC染色观察梗死灶部位;采用Western blot法检测大鼠左侧大脑GAP-43的表达。结果:术后1周末,模型组较假手术组GAP-43表达增高;术后2周末,模型组和药物组GAP-43表达均较假手术组增高,其中药物组增高更为显著;术后3周、4周末延续术后2周末的趋势;术后5周,药物组仍高于模型组,模型组与假手术组已无显著差异。与此同时,BWT评分结果示,模型组药物组BWT评分在术后1、2、3、4周末均升高(P<0.01),其中药物组的升高更显著,直至术后5周末,药物组与假手术组已无明显差异(P>0.05)。TTC染色表明术后5周末MCAO大鼠梗死灶体积无差异。结论:复健片通过增加MCAO模型大鼠健侧大脑GAP-43表达,从而促进神经突起生长,继而促进未损伤侧大脑重塑以改善大鼠缺血性脑卒中后的运动功能恢复。展开更多
基金the National Natural Science Foundation of China, No. 30801470
文摘The present study investigated the effects of Fujian tablet, a Chinese medicine compound that can nourish liver and kidney, on corticospinal tract plasticity and cervical cord microenvironment in rats with focal cerebral ischemia. Results showed that motor function of rats with right proximal middle cerebral artery occlusion was significantly improved following treatment with Fujian tablet, 9 g crude drug/kg. Anterograde tracing revealed significantly increased biotinylated dextran amine expression in the denervated （left） side of the cervical cord （C4-6） following Fujian tablet treatment, and significantly decreased Nogo-A mRNA expression was detected in the denervated side of the cervical cord （C4-6） using in situ hybridization. Pearson＇s correlation analysis showed a negative correlation between biotinylated dextran amine and Nogo-A mRNA expression （r = -0.943, P 〈 0.01）. Results demonstrated that Fujian tablet can promote corticospinal tract plasticity possibly through the inhibitory effect on Nogo-A mRNA expression in the cervical spinal cord, thereby improving motor dysfunction.
文摘目的:观察复健片对脑梗死大鼠脑组织RhoA、ROCK2、MLCP蛋白的影响,探讨其解除神经再生抑制的机制。方法:30只SD大鼠随机分为正常对照组(5只)、假手术组(5只)、模型组(10只)和药物组(10只)。用改良的Longa E Z法制备大脑中动脉阻塞大鼠模型,药物组灌胃给予复健片水溶液,余各组分别灌胃给予同剂量的蒸馏水。用Western Blot观察模型大鼠梗死周边区脑RhoA、ROCK2、MLCP蛋白的表达。结果:药物组大鼠脑组织中RhoA、ROCK2、MLCP表达虽然较正常对照组增多,但较模型组明显减少,二者之间有显著性差异(P<0.01)。结论:复健片可抑制Rho/ROCK通路信号因子在脑梗死后的表达,从而促进神经发生。
文摘目的:观察复健片对大脑中动脉闭塞(MCAO)模型大鼠未损伤侧大脑皮质生长相关蛋白43(GAP-43)表达的影响,探讨复健片促进未损伤侧大脑重塑的分子基础。方法:110只SD雄性大鼠,按随机数字表法随机分为假手术组20只和造模组90只。根据处死时间点及干预方法不同,假手术组及模型组各分为术后1周、2周、3周、4周和5周五个亚组,药物组分为术后2周、3周、4周和5周四个亚组。造模组采用线栓法制备大鼠右侧大脑中动脉永久性闭塞(MCAO)模型,药物组术后1周末按5.9 m L/kg给予复健片浓缩液灌胃,采用横木行走实验(BWT)评定各组大鼠运动功能;TTC染色观察梗死灶部位;采用Western blot法检测大鼠左侧大脑GAP-43的表达。结果:术后1周末,模型组较假手术组GAP-43表达增高;术后2周末,模型组和药物组GAP-43表达均较假手术组增高,其中药物组增高更为显著;术后3周、4周末延续术后2周末的趋势;术后5周,药物组仍高于模型组,模型组与假手术组已无显著差异。与此同时,BWT评分结果示,模型组药物组BWT评分在术后1、2、3、4周末均升高(P<0.01),其中药物组的升高更显著,直至术后5周末,药物组与假手术组已无明显差异(P>0.05)。TTC染色表明术后5周末MCAO大鼠梗死灶体积无差异。结论:复健片通过增加MCAO模型大鼠健侧大脑GAP-43表达,从而促进神经突起生长,继而促进未损伤侧大脑重塑以改善大鼠缺血性脑卒中后的运动功能恢复。
