In present work,the effects of acupuncturing Renzhong（GV 26）and Zusanli（ST 36）on the neuronal activity of Locus Coeruleus（LC）in rats were observed and compared.The resultsindicated that the central mechanism o...In present work,the effects of acupuncturing Renzhong（GV 26）and Zusanli（ST 36）on the neuronal activity of Locus Coeruleus（LC）in rats were observed and compared.The resultsindicated that the central mechanism of promoting blood pressure（BP）by acupuncturing Renzhongwas related to the activity of LC;the influence of acupuncturing Renzhong on neuronal activity of LC was more obvious than that of acupuncturing Zusanli;and there was relative speciality between the acupoints.展开更多
This study compares the changes of DNA repair in brain tissue dominated by the middle cerebral artery after electroacupuncture at the acupoints of Renzhong (DU 26), Neiguan (PC 6), Quchi (LI 11) and Zusanli (ST 36) in...This study compares the changes of DNA repair in brain tissue dominated by the middle cerebral artery after electroacupuncture at the acupoints of Renzhong (DU 26), Neiguan (PC 6), Quchi (LI 11) and Zusanli (ST 36) in rats. In the apurinic/apyrimidinic endonuclease DNA basic group reparative excision experiments, the apurinic/apyrimidinic endonuclease activity of brain tissue increased slightly after electroacupuncture in rats. In the DNA polymerase β (Pol β)experiments, the Pol β ac-tivity of brain tissue increased after electroacupuncture, especially at DU 26 and PC 6. In the DNA ligase experiments, the expression of DNA ligase 1 in brain tissue increased significantly after electroacupuncture. These findings demonstrate increased activity of apurinic/apyrimidinic en-donuclease, Pol β and DNA ligase 1 after electroacupuncture at DU 26 and PC 6. Also, DNA repair in brain tissue supplied by the middle cerebral artery is promoted after electroacupuncture at DU 26 and PC 6, which are more effective than the LI 11 and ST 36展开更多
[目的]观察电针人中穴(GV26)对脑梗死(CI)后内源性神经干细胞增殖、分化的影响。[方法]Wistar大鼠随机分为电针组、模型组、假手术组、空白组,前3组每组24只,按干预和取材的时间分为1、3、7、14 d 4个亚组,空白组6只,采用神经功能缺损...[目的]观察电针人中穴(GV26)对脑梗死(CI)后内源性神经干细胞增殖、分化的影响。[方法]Wistar大鼠随机分为电针组、模型组、假手术组、空白组,前3组每组24只,按干预和取材的时间分为1、3、7、14 d 4个亚组,空白组6只,采用神经功能缺损体征评分(NSS)评定各组大鼠神经功能缺损程度;苏木精-伊红(HE)染色法观察CI后内源性神经干细胞的形态改变;免疫组化、免疫荧光双标记法检测CI后内源性神经干细胞的增殖、分化。[结果]神经功能方面,空白组、假手术组NSS评分无变化,神经功能正常,模型组、电针组CI大鼠随着时间的延长,两组大鼠在感觉、反射、肢体功能等方面均有改善,3、7、14 d时电针组NSS评分低于模型组,两组差异有统计学意义(P<0.05);HE染色,空白组和假手术组脑组织形态未见明显异常,模型组和电针组均可见神经细胞的细胞核固缩、伴细胞空泡,随干预天数增加,逐渐有结缔组织、星形胶质细胞与正常细胞生成,电针组整体修复情况优于模型组;免疫组化,与空白组、假手术组比较,模型组大鼠各时相内源性神经干细胞(eNSPCs)特异性标识物齿状回巢蛋白(Nestin)目标蛋白平均光密度值(AOD)、胶质纤维酸性蛋白(GFAP)AOD均明显升高(P<0.01),与模型组比较,电针组各时相Nestin AOD均较高(P<0.05或P<0.01),3、7、14 d时GFAP AOD均升高(P<0.05或P<0.01);免疫荧光双标记,与空白组、假手术组比较,模型组大鼠Nestin及GFAP表达量均明显升高(P<0.01),荧光信号强,与模型组比较,电针组各时相Nestin表达均升高(P<0.05或P<0.01),Nestin/5-溴脱氧尿嘧啶核苷(BrdU)共标记信号强,3、7、14 d时GFAP表达升高(P<0.05或P<0.01),GFAP/BrdU共标记信号强。[结论]电针人中穴可明显改善CI大鼠神经功能损伤情况,促进内源性神经干细胞的增殖、分化为星形胶质细胞,从而有利于CI后神经功能网络的修复和功能的重建。展开更多
文摘In present work,the effects of acupuncturing Renzhong（GV 26）and Zusanli（ST 36）on the neuronal activity of Locus Coeruleus（LC）in rats were observed and compared.The resultsindicated that the central mechanism of promoting blood pressure（BP）by acupuncturing Renzhongwas related to the activity of LC;the influence of acupuncturing Renzhong on neuronal activity of LC was more obvious than that of acupuncturing Zusanli;and there was relative speciality between the acupoints.
基金the National Basic Research Program of China (973 Program), No. 2009CB522904the National Natural Science Foundation of China, No. 81173326, 81072868, 30973802 and 81102661Supported by Open Research Fund of Zhejiang First-foremost Key Subject-Acupuncture & Moxibustion, No. ZTK2010B05
文摘This study compares the changes of DNA repair in brain tissue dominated by the middle cerebral artery after electroacupuncture at the acupoints of Renzhong (DU 26), Neiguan (PC 6), Quchi (LI 11) and Zusanli (ST 36) in rats. In the apurinic/apyrimidinic endonuclease DNA basic group reparative excision experiments, the apurinic/apyrimidinic endonuclease activity of brain tissue increased slightly after electroacupuncture in rats. In the DNA polymerase β (Pol β)experiments, the Pol β ac-tivity of brain tissue increased after electroacupuncture, especially at DU 26 and PC 6. In the DNA ligase experiments, the expression of DNA ligase 1 in brain tissue increased significantly after electroacupuncture. These findings demonstrate increased activity of apurinic/apyrimidinic en-donuclease, Pol β and DNA ligase 1 after electroacupuncture at DU 26 and PC 6. Also, DNA repair in brain tissue supplied by the middle cerebral artery is promoted after electroacupuncture at DU 26 and PC 6, which are more effective than the LI 11 and ST 36
