Mesenchymal stem cell transplantation is a novel means of treating cerebral ischemia/reper- fusion, and can promote angiogenesis and neurological functional recovery. Acupuncture at Conception and Governor vessels als...Mesenchymal stem cell transplantation is a novel means of treating cerebral ischemia/reper- fusion, and can promote angiogenesis and neurological functional recovery. Acupuncture at Conception and Governor vessels also has positive effects as a treatment for cerebral ischemia/ reperfusion. Therefore, we hypothesized that electro-acupuncture at Conception and Governor vessels plus mesenchymal stem cell transplantation may have better therapeutic effects on the promotion of angiogenesis and recovery of neurological function than either treatment alone. In the present study, human umbilical cord blood-derived mesenchymal stem cells were isolated, cultured, identified and intracranially transplanted into the striatum and subcortex of rats at 24 hours following cerebral ischemia/reperfusion. Subsequently, rats were electro-acupunctured at Conception and Governor vessels at 24 hours after transplantation. Modified neurological severity scores and immunohistochemistry findings revealed that the combined interventions of electro-acupuncture and mesenchymal stem cell transplantation clearly improved neurological impairment and up-regulated vascular endothelial growth factor expression around the isch- emic focus. The combined intervention provided a better outcome than mesenchymal stem cell transplantation alone. These findings demonstrate that electro-acupuncture at Conception and Governor vessels and mesenchymal stem cell transplantation have synergetic effects on promot- ing neurological function recovery and angiogenesis in rats after cerebral ischemia/reperfusion.展开更多
Objective:To explore the effect of acupuncture on the expression of heme oxygenase-1 in rats with acute cerebral hemorrhage.Methods:108 Wistar male rats were randomly divided into sham operation group,model group,and ...Objective:To explore the effect of acupuncture on the expression of heme oxygenase-1 in rats with acute cerebral hemorrhage.Methods:108 Wistar male rats were randomly divided into sham operation group,model group,and acupuncture combined with model group(referred to as acupuncture group).Each group was divided into 3 subgroups according to 1d,3d and 7d,with 6 rats in each subgroup.The rat model of cerebral hemorrhage was established by autologous blood injection.Acupuncture was given at Baihui(GU20)and Qubin(GB7).Separately,at the 1st,3rd and 7th day,modified neurological severity score was used to evaluate the neurological function of rats,HE staining was used to measure the volume of cerebral hematoma and western blot was used to detect the expression of heme oxygenase-1 protein in cerebral hematoma tissue.Results:Compared with the model group,at each time point,the modified neurological severity score of the acupuncture group was significantly reduced(P<0.01);at the two time points of 3rd and 7th day,the cerebral hematoma volume of the acupuncture group was significantly reduced(P<0.05)and the expression of heme oxygenase-1 protein in brain tissue was significantly increased(P<0.05).Conclusion:Acupuncture may promote the expression of heme oxygenase-1 protein,reduce the volume of hematoma and the score of neurological deficit in rats with intracerebral hemorrhage,improve the performance of neurological deficit,and play a role in brain protection.展开更多
临床研究表明,在大鼠双眼眶上孔、眶下缘和鼻交点处采用经颅直流电刺激(transcranial direct current stimulation,tDCS)有助于中风后的康复.然而,tDCS的潜在神经生物学机制仍然知之甚少.本研究主要关注卒中后tDCS疗法对功能恢复和Notc...临床研究表明,在大鼠双眼眶上孔、眶下缘和鼻交点处采用经颅直流电刺激(transcranial direct current stimulation,tDCS)有助于中风后的康复.然而,tDCS的潜在神经生物学机制仍然知之甚少.本研究主要关注卒中后tDCS疗法对功能恢复和Notch信号通路的影响.采用大鼠中脑动脉闭塞(middle cerebral arterial occlusion,MCAO)再灌注模型,将实验动物随机分为缺血组(MCAO)和缺血后治疗组(MCAO+tDCS),采用神经系统严重程度评分(modified neurological severity score,mNSS)结合动物的行为学表现对神经功能的恢复进行评估.通过2,3,5-三苯基氯化四氮唑(2,3,5-triphenyltetrazole chloride,TTC)染色从组织学上比较治疗前后大鼠脑缺血组织损伤的恢复情况.应用实时定量聚合酶链反应(real time quantitative polymerase chain reaction,RT-PCR)测定缺血性脑中Notch信号通路中受体蛋白、配体蛋白及下游因子的基因表达变化.结果表明,大鼠脑缺血可以激活Notch信号通路,采用多导联脑反射仪的tDCS疗法可以提高Notch信号通路中Notch1、NICD、RBP-JK和Hes-1的mRNA水平,促进神经功能的恢复,并显著减少脑梗死的体积.多导联脑反射仪的tDCS疗法有望发展为一种可靠的临床治疗方式.展开更多
基金supported by the National Natural Science Foundation of China,No.81072877Key Laboratory Project of Condition and Platform Construction Plan of Shenzhen Scientific Research Fund,No.CXB201111250113AShenzhen Scientific and Technology Development Program,No.201203149
文摘Mesenchymal stem cell transplantation is a novel means of treating cerebral ischemia/reper- fusion, and can promote angiogenesis and neurological functional recovery. Acupuncture at Conception and Governor vessels also has positive effects as a treatment for cerebral ischemia/ reperfusion. Therefore, we hypothesized that electro-acupuncture at Conception and Governor vessels plus mesenchymal stem cell transplantation may have better therapeutic effects on the promotion of angiogenesis and recovery of neurological function than either treatment alone. In the present study, human umbilical cord blood-derived mesenchymal stem cells were isolated, cultured, identified and intracranially transplanted into the striatum and subcortex of rats at 24 hours following cerebral ischemia/reperfusion. Subsequently, rats were electro-acupunctured at Conception and Governor vessels at 24 hours after transplantation. Modified neurological severity scores and immunohistochemistry findings revealed that the combined interventions of electro-acupuncture and mesenchymal stem cell transplantation clearly improved neurological impairment and up-regulated vascular endothelial growth factor expression around the isch- emic focus. The combined intervention provided a better outcome than mesenchymal stem cell transplantation alone. These findings demonstrate that electro-acupuncture at Conception and Governor vessels and mesenchymal stem cell transplantation have synergetic effects on promot- ing neurological function recovery and angiogenesis in rats after cerebral ischemia/reperfusion.
文摘Objective:To explore the effect of acupuncture on the expression of heme oxygenase-1 in rats with acute cerebral hemorrhage.Methods:108 Wistar male rats were randomly divided into sham operation group,model group,and acupuncture combined with model group(referred to as acupuncture group).Each group was divided into 3 subgroups according to 1d,3d and 7d,with 6 rats in each subgroup.The rat model of cerebral hemorrhage was established by autologous blood injection.Acupuncture was given at Baihui(GU20)and Qubin(GB7).Separately,at the 1st,3rd and 7th day,modified neurological severity score was used to evaluate the neurological function of rats,HE staining was used to measure the volume of cerebral hematoma and western blot was used to detect the expression of heme oxygenase-1 protein in cerebral hematoma tissue.Results:Compared with the model group,at each time point,the modified neurological severity score of the acupuncture group was significantly reduced(P<0.01);at the two time points of 3rd and 7th day,the cerebral hematoma volume of the acupuncture group was significantly reduced(P<0.05)and the expression of heme oxygenase-1 protein in brain tissue was significantly increased(P<0.05).Conclusion:Acupuncture may promote the expression of heme oxygenase-1 protein,reduce the volume of hematoma and the score of neurological deficit in rats with intracerebral hemorrhage,improve the performance of neurological deficit,and play a role in brain protection.
