Objective :To observe the effect of electroacupuncture at pericardium meridian on neurological deficit, D-serine ( D-Ser ) content and NMDAR expression in ischemic brain tissue of rats with middle cerebral artery occl...Objective :To observe the effect of electroacupuncture at pericardium meridian on neurological deficit, D-serine ( D-Ser ) content and NMDAR expression in ischemic brain tissue of rats with middle cerebral artery occlusion ( MCAO ). Methods:A total of 36 SD rats were randomly divided into normal group, sham operation group, model group, EA pericardium meridian group, model+D-Ser group,and EA pericardium meridian+D-Ser group. The MCAO model was prepared by Zea Longa method. The model+D-Ser group and the EA pericardium meridian+D-Ser group were given exogenous D-Ser reagent(160 mg/kg i.p.) 30 minutes after the success of the insertion of the suture. EA pericardium meridian group and EA pericardium meridian+D-Ser group were treated with electroacupuncture for 30 min on the next day. The remaining groups were only bound for 30 min.Behavioral evaluation was performed at 6 h after successful modeling and 2 d after intervention, and then the rats were sacrificed. The content of D-Ser in ischemic brain tissue was measured by liquid chromatography tandem mass spectrometry, and the protein expression of NR1, NR2A and NR2B was detected by Western Blot. Results : Before treatment, compared with the normal group and the sham operation group, the behavioral scores of each group increased after modeling (P<0.05 );Compared with the model group, the behavioral scores of the model+D-Ser group and the EA pericardium meridian+D-Ser group were increased (P<0.05).After treatment, compared with the model group, there was no significant difference in the EA pericardium meridian group (P>0.05),The behavioral scores of the model+D-Ser group and the EA pericardium meridian+D-Ser group were still increased (P<0.05);Compared with the model+D-Ser group, the behavioral score of the EA pericardium meridian+D-Ser group was not statistically significant (P>0.05).Comparison before and after treatment in the group,except for the normal group and the sham operation group, the behavioral scores of each group were slightly increased, and the difference was not statistically significant (P>0.05).Compared with the model group, the content of D-Ser and the protein expression of NR1, NR2A and NR2B in the brain tissue of the model+D-Ser group were significantly increased (P<0.05);The protein expression of NR1, NR2A and NR2B decreased in EA pericardium meridian group (P<0.05);Compared with the model+ D-Ser group, the D-Ser content and the protein expression of NR1, NR2A and NR2B in the EA pericardium meridian+D-Ser group were decreased (P<0.05). Conclusion : EA at pericardium meridian points can reduce the D-Ser content in brain tissue of rats with acute MCAO, regulate the decrease of NR1, NR2A and NR2B protein expression, inhibit the NMDA receptor activity, and play a neuroprotective role.展开更多
Objective: To observe the influence of acupuncture on microcirculation perfusion of the pericardium meridian and heart in acute myocardial ischemia(AMI) rats and evaluate whether acupuncture can simultaneously affect ...Objective: To observe the influence of acupuncture on microcirculation perfusion of the pericardium meridian and heart in acute myocardial ischemia(AMI) rats and evaluate whether acupuncture can simultaneously affect the meridians and corresponding viscera. Additionally, acupoints at different meridians were compared and whether they exert the same effects was discussed. Methods: Totally 32 Sprague-Dawley rats were subjected to left anterior descending(LAD) ligation to develop an AMI model.Rats were divided into 4 groups, including AMI, acupuncture Neiguan(PC 6), Lieque(LU 7) and Qiansanli(LI 10) groups(n=8). Eight rats received only thoracotomy(sham-operated group). The rats in the acupuncture groups received manual acupuncture at PC 6, LU 7 and LI 10 acupoints for 15 min, respectively. The microcirculation perfusion of pericardium meridian and heart was monitored by laser speckle perfusion imager(LSPI) before, during and after acupuncture manipulation for 15 min. Subsequently, the perfusion unit(PU)was calculated and analyzed by PSI System. Results: After LAD, compared to pre-acupuncture stage, the heart microcirculation perfusion(HMP) in the AMI group decreased continuously at during-acupuncture(P>0.05) and post-acupuncture stages(P<0.05), and the pericardium meridian microcirculation perfusion(PMP) showed no significant differences at 3 stages(P>0.05). Compared to pre-acupuncture stage, the PMP and HMP in PC 6 group significantly increased during acupuncture manipulation(both P<0.05), and PMP decreased obviously after acupuncture(P<0.05). The PMP in the LU 7 and LI 10 groups were slightly elevated(both P>0.05);however, they were significantly reduced after acupuncture manipulation(both P<0.05). Additionally, HMP of LI 10 group was decreased significantly during acupuncture, especially compared to pre-acupuncture stage(P<0.05). Conclusions: Acupuncture at PC 6 obviously increased the PMP and HMP in AMI rats, and the effects were superior to at LU 7 and LI 10 acupoints. It was further confirmed that acupuncture promoted qi and blood circulation, indicating that acupoint specificity exists and features a meridian-propagated effect.展开更多
Objective： To study the effect of electroacupuncture （EA） at the Pericardium Meridian on the heart function of volunteers with acute hypoxia, and to provide scientific evidence for the acupoints selection along the...Objective： To study the effect of electroacupuncture （EA） at the Pericardium Meridian on the heart function of volunteers with acute hypoxia, and to provide scientific evidence for the acupoints selection along the affected meridian in acupuncture-moxibustion therapy. Methods： Based on a self-control design, eighteen healthy volunteers were recruited in the study. Points from the Pericardium Meridian [Neiguan （PC 6）, Ximen （PC 4）, Quze （PC 3） and Tianquan （PC 2）], non-Pericardium Meridian point [Shousanli （LI 10）], non-meridian and non-acupoint points [1.0-1.5 cm lateral to Neiguan （PC 6） and Ximen （PC 4）, respectively on both sides], and a blank control （only inhaling low-oxygen gas without EA stimulation] were selected to observe, once every week, 10 sessions in total, and only 1 acupoint was observed once. The volunteers inhaled low-oxygen gas mixture （10.8% 02 and 89.2% N2] for 30 min to imitate acute hypoxia. EA was conducted when the gas mixture was inhaled for 10 min and then lasted for 20 min; meanwhile, hemodynamic indexes such as cardiac output （CO）, cardiac index （Cl）, systemic vascular resistance （SVR）, systemic vascular resistance index （SVRI], left cardiac work （LCW], left cardiac work index （LCWl） and heart rate （HR） were recorded on a hemodynamic monitor. Results： EA at the acupoints of Pericardium Meridian significantly down-regulated the increased CO/CI, LCW/LCWl, and HR （P〈0.05）, and significantly up-regulated the decreased SVR/SVRI in hypoxia （P〈0.05）; EA at other meridian acupoints or at non-meridian and non-acupoint points didn＇t produce such effects. Conclusion： EA at the Pericardium Meridian can obviously improve the cardiac hyper-activation caused by acute hypoxia in healthy volunteers.展开更多
Objective: To quantify the purine concentrations of the acupoints along the pericardium and nonpericardium meridians under healthy and myocardial ischemia conditions to investigate the relationship between acupoint pu...Objective: To quantify the purine concentrations of the acupoints along the pericardium and nonpericardium meridians under healthy and myocardial ischemia conditions to investigate the relationship between acupoint purine change and body functional status in rats.Methods: A total of 70 rats underwent an operation for myocardial ischemia,while 40 of them survived.They were randomly assigned to the following 5 subgroups:Neiguan(PC 6),Quze(PC 3),Tianquan(PC 2),Quchi(LI 11),and Jianyu(LI 15).Simultaneously,another40 healthy rats were also randomized into the same 5 subgroups as the control group.The tissue ?uids at the acupoints were collected by microdialysis for 30 min.Subsequently,the concentration of adenosine triphosphate(ATP),adenosine diphosphate(ADP),adenosine monophosphate(AMP),and adenosine(ADO) were quanti?ed using the high-performance liquid chromatography method.Results: Compared with the healthy group,the ADO at PC 6(P=0.012),PC 3(P=0.038),PC 2(P=0.024),and LI 15(P=0.042) obviously increased in the model group,while no signi?cant difference was observed at LI 11(P=0.201).However,ATP,ADP,and AMP manifested no significant changes in these areas,except for ATP at LI 15(P=0.036).Conclusions: Myocardial ischemia could induce an increase in ADO at acupoints of the upper arm and shoulder area,suggesting that the body functional status could affect the responsiveness of acupoints.The status of these acupoints could be pathogenically activated by disease,and distribution following some speci?c courses.展开更多
基金National Natural Science Foundation of China (No.81774421)Natural Science Foundation of Hunan Province (No.2018JJ2306)Hunan Provincial General Project of Postgraduate Scientific Research Innovation (No.CX20200809)。
文摘Objective :To observe the effect of electroacupuncture at pericardium meridian on neurological deficit, D-serine ( D-Ser ) content and NMDAR expression in ischemic brain tissue of rats with middle cerebral artery occlusion ( MCAO ). Methods:A total of 36 SD rats were randomly divided into normal group, sham operation group, model group, EA pericardium meridian group, model+D-Ser group,and EA pericardium meridian+D-Ser group. The MCAO model was prepared by Zea Longa method. The model+D-Ser group and the EA pericardium meridian+D-Ser group were given exogenous D-Ser reagent(160 mg/kg i.p.) 30 minutes after the success of the insertion of the suture. EA pericardium meridian group and EA pericardium meridian+D-Ser group were treated with electroacupuncture for 30 min on the next day. The remaining groups were only bound for 30 min.Behavioral evaluation was performed at 6 h after successful modeling and 2 d after intervention, and then the rats were sacrificed. The content of D-Ser in ischemic brain tissue was measured by liquid chromatography tandem mass spectrometry, and the protein expression of NR1, NR2A and NR2B was detected by Western Blot. Results : Before treatment, compared with the normal group and the sham operation group, the behavioral scores of each group increased after modeling (P<0.05 );Compared with the model group, the behavioral scores of the model+D-Ser group and the EA pericardium meridian+D-Ser group were increased (P<0.05).After treatment, compared with the model group, there was no significant difference in the EA pericardium meridian group (P>0.05),The behavioral scores of the model+D-Ser group and the EA pericardium meridian+D-Ser group were still increased (P<0.05);Compared with the model+D-Ser group, the behavioral score of the EA pericardium meridian+D-Ser group was not statistically significant (P>0.05).Comparison before and after treatment in the group,except for the normal group and the sham operation group, the behavioral scores of each group were slightly increased, and the difference was not statistically significant (P>0.05).Compared with the model group, the content of D-Ser and the protein expression of NR1, NR2A and NR2B in the brain tissue of the model+D-Ser group were significantly increased (P<0.05);The protein expression of NR1, NR2A and NR2B decreased in EA pericardium meridian group (P<0.05);Compared with the model+ D-Ser group, the D-Ser content and the protein expression of NR1, NR2A and NR2B in the EA pericardium meridian+D-Ser group were decreased (P<0.05). Conclusion : EA at pericardium meridian points can reduce the D-Ser content in brain tissue of rats with acute MCAO, regulate the decrease of NR1, NR2A and NR2B protein expression, inhibit the NMDA receptor activity, and play a neuroprotective role.
基金Supported by the Project Acupoint Sensitization Research of the National Natural Science Foundation of China (No. 81590951)National Basic Research Program of China (No. 2012CB518501)the National Natural Science Foundation of China (No. 81373559)。
文摘Objective: To observe the influence of acupuncture on microcirculation perfusion of the pericardium meridian and heart in acute myocardial ischemia(AMI) rats and evaluate whether acupuncture can simultaneously affect the meridians and corresponding viscera. Additionally, acupoints at different meridians were compared and whether they exert the same effects was discussed. Methods: Totally 32 Sprague-Dawley rats were subjected to left anterior descending(LAD) ligation to develop an AMI model.Rats were divided into 4 groups, including AMI, acupuncture Neiguan(PC 6), Lieque(LU 7) and Qiansanli(LI 10) groups(n=8). Eight rats received only thoracotomy(sham-operated group). The rats in the acupuncture groups received manual acupuncture at PC 6, LU 7 and LI 10 acupoints for 15 min, respectively. The microcirculation perfusion of pericardium meridian and heart was monitored by laser speckle perfusion imager(LSPI) before, during and after acupuncture manipulation for 15 min. Subsequently, the perfusion unit(PU)was calculated and analyzed by PSI System. Results: After LAD, compared to pre-acupuncture stage, the heart microcirculation perfusion(HMP) in the AMI group decreased continuously at during-acupuncture(P>0.05) and post-acupuncture stages(P<0.05), and the pericardium meridian microcirculation perfusion(PMP) showed no significant differences at 3 stages(P>0.05). Compared to pre-acupuncture stage, the PMP and HMP in PC 6 group significantly increased during acupuncture manipulation(both P<0.05), and PMP decreased obviously after acupuncture(P<0.05). The PMP in the LU 7 and LI 10 groups were slightly elevated(both P>0.05);however, they were significantly reduced after acupuncture manipulation(both P<0.05). Additionally, HMP of LI 10 group was decreased significantly during acupuncture, especially compared to pre-acupuncture stage(P<0.05). Conclusions: Acupuncture at PC 6 obviously increased the PMP and HMP in AMI rats, and the effects were superior to at LU 7 and LI 10 acupoints. It was further confirmed that acupuncture promoted qi and blood circulation, indicating that acupoint specificity exists and features a meridian-propagated effect.
基金supported by Youth Fund of National Natural Sciences Foundation of China, No. 81403490Public-funded Project of Fujian Provincial Science & Technology Ministry, No. 2014R1035-6+1 种基金Scientific Research Project (Type B) for Young Teachers of Fujian Education Department, No. JB14050Key Unit of the Propagated Sensation along Meridian of Fujian Province~~
文摘Objective： To study the effect of electroacupuncture （EA） at the Pericardium Meridian on the heart function of volunteers with acute hypoxia, and to provide scientific evidence for the acupoints selection along the affected meridian in acupuncture-moxibustion therapy. Methods： Based on a self-control design, eighteen healthy volunteers were recruited in the study. Points from the Pericardium Meridian [Neiguan （PC 6）, Ximen （PC 4）, Quze （PC 3） and Tianquan （PC 2）], non-Pericardium Meridian point [Shousanli （LI 10）], non-meridian and non-acupoint points [1.0-1.5 cm lateral to Neiguan （PC 6） and Ximen （PC 4）, respectively on both sides], and a blank control （only inhaling low-oxygen gas without EA stimulation] were selected to observe, once every week, 10 sessions in total, and only 1 acupoint was observed once. The volunteers inhaled low-oxygen gas mixture （10.8% 02 and 89.2% N2] for 30 min to imitate acute hypoxia. EA was conducted when the gas mixture was inhaled for 10 min and then lasted for 20 min; meanwhile, hemodynamic indexes such as cardiac output （CO）, cardiac index （Cl）, systemic vascular resistance （SVR）, systemic vascular resistance index （SVRI], left cardiac work （LCW], left cardiac work index （LCWl） and heart rate （HR） were recorded on a hemodynamic monitor. Results： EA at the acupoints of Pericardium Meridian significantly down-regulated the increased CO/CI, LCW/LCWl, and HR （P〈0.05）, and significantly up-regulated the decreased SVR/SVRI in hypoxia （P〈0.05）; EA at other meridian acupoints or at non-meridian and non-acupoint points didn＇t produce such effects. Conclusion： EA at the Pericardium Meridian can obviously improve the cardiac hyper-activation caused by acute hypoxia in healthy volunteers.
基金Supported by National Natural Science Foundation of China(No.81590951,81373559,81373561 and 81573885)the State Key Program for Basic Research of China(No.2012CB518501)the Project of the Second Clinical Medical College of Nanjing University of Chinese Medicine(No.RLZZ201605)
文摘Objective: To quantify the purine concentrations of the acupoints along the pericardium and nonpericardium meridians under healthy and myocardial ischemia conditions to investigate the relationship between acupoint purine change and body functional status in rats.Methods: A total of 70 rats underwent an operation for myocardial ischemia,while 40 of them survived.They were randomly assigned to the following 5 subgroups:Neiguan(PC 6),Quze(PC 3),Tianquan(PC 2),Quchi(LI 11),and Jianyu(LI 15).Simultaneously,another40 healthy rats were also randomized into the same 5 subgroups as the control group.The tissue ?uids at the acupoints were collected by microdialysis for 30 min.Subsequently,the concentration of adenosine triphosphate(ATP),adenosine diphosphate(ADP),adenosine monophosphate(AMP),and adenosine(ADO) were quanti?ed using the high-performance liquid chromatography method.Results: Compared with the healthy group,the ADO at PC 6(P=0.012),PC 3(P=0.038),PC 2(P=0.024),and LI 15(P=0.042) obviously increased in the model group,while no signi?cant difference was observed at LI 11(P=0.201).However,ATP,ADP,and AMP manifested no significant changes in these areas,except for ATP at LI 15(P=0.036).Conclusions: Myocardial ischemia could induce an increase in ADO at acupoints of the upper arm and shoulder area,suggesting that the body functional status could affect the responsiveness of acupoints.The status of these acupoints could be pathogenically activated by disease,and distribution following some speci?c courses.
