Objective: To observe the effect of acupuncture on blood oxygen concentration in the brain of rats with post-traumatic stress disorder (PTSD) based on functional near-infrared spectroscopy (fNIRS), thus to reveal the ...Objective: To observe the effect of acupuncture on blood oxygen concentration in the brain of rats with post-traumatic stress disorder (PTSD) based on functional near-infrared spectroscopy (fNIRS), thus to reveal the mechanisms of acupuncture in intervening the brain function of PTSD rats. Methods: Sixty Sprague-Dawley (SD) rats were randomly divided into a blank group, a model group, a grasping group, a paroxetine group and an acupuncture group, with 12 rats in each group. Except the blank group, rats in the other groups all received incarceration plus electric shock for 7 d to prepare the PTSD animal model. One hour before the stress model was established, rats in each group received the desig nated in tervention: rats in the blank group and the model group did not receive any intervention;rats in the grasping group received grasping and fixation;rats in the paroxetine group received paroxetine hydrochloride solution by intragastric administration;and rats in the acupuncture group received acupuncture. Six-day treatme nt was a course, with 2 courses of treatme nt con ducted for a total of 12 d. After the modeli ng, rats in each treatment group received intervention for 5 dz and the fNIRS system was used to collect and record the changes in the concentrations of oxygenated hemoglobin (HbO2), deoxygenated hemoglobin (d-Hb) and total hemoglobin (t-Hb) of the involved rat's brain regions, and also to assess the brain function. Results: Compared with the blank group, the con centrati on of HbO2 was significa ntly in creased, the concen trati on of d-Hb was significa ntly decreased, and the concen tration of t-Hb was sign ifica ntly in creased in the model group and the graspi ng group after the in tervention, and the differ en ces were statistically significant (all P<0.01). Compared with the model group, the concentrations of HbO2, d-Hb and t-Hb in the grasping group did not change significantly (all P>0.05). Compared with the grasping group, the concentration of HbC^was significantly decreased, the concentration of d-Hb was significantly in creased, and the concen trati on of t-Hb was sign ifica ntly decreased in the paroxeti ne group and the acup un cture group, and the differences were statistically sigrdficant (all P<0.05). There were no significant differences in the concentrations of HbO2, d-Hb and t-Hb between the paroxetine group and the acupuncture group (all P>0.05). Con elusion: Acup un cture can regulate the blood oxyge n conce ntrati on in the brain of PTSD model rats, which may be an important mechanism of acupuncture in intervening the brain function in PTSD rats.展开更多
Objective: To observe the effects of acupuncture on the characteristics of neuro-electrophysiological activity in hippocampal CAI and CA3 areas of rats with post-traumatic stress disorder (PTSD). Methods: Fifty Spragu...Objective: To observe the effects of acupuncture on the characteristics of neuro-electrophysiological activity in hippocampal CAI and CA3 areas of rats with post-traumatic stress disorder (PTSD). Methods: Fifty Sprague-Dawley (SD) rats were randomly divided into a blank group, a model group, a grasping group, a Western medicine group and an acupuncture group, with 10 rats in each group. Except for the blank group, rats in the other 4 groups all received the combined stress modeling method. Rats in the Western medicine group were intragastrically administrated with paroxetine hydrochloride, those in the acupuncture group received acupuncture intervention, those in the grasping group received grasping fixation, and those in the model group and the blank group did not receive any in terve ntions. After 14 d of in terve ntion, the interspike in terval (ISI) and power spectral den sities (PSD) were an a lyzed and mapped by in vivo multiple channels to record the neuron clusters discharge in the hippocampal CAI and CA3 areas. Results: Compared with the blank group, ISI was proIonged in the CAI and CA3 areas of the model group and the grasping group, and the concentrated PSD distribution area moved down (Pv0.05 or P<0.01). Compared with the grasping group, the ISI of the CAI and CA3 areas in the Western medicine group and the acupuncture group was shortened, and the concentrated PSD distribution area moved up (P<0.05 or P<0.01). The ISI and PSD distributions in the CAI and CA3 areas of the acupuncture group were not statistically different from those in the Western medicine group (both P>0.05). Conclusion: Both acupuncture and paroxetine hydrochloride can significantly regulate the neuro-electrophysiology activity of hippocampal CAI and CA3 areas in PTSD rats, which may be one of the mechanisms of acupuncture intervention to promote PTSD recovery.展开更多
Objective:To observe the effect of liver-soothing and mind-regulating acupuncture method on the resting-state electroencephalography (EEG) in rats with post-traumatic stress disorder (PTSD),and to provide evidence for...Objective:To observe the effect of liver-soothing and mind-regulating acupuncture method on the resting-state electroencephalography (EEG) in rats with post-traumatic stress disorder (PTSD),and to provide evidence for the effect mechanism study and clinical application of acupuncture intervention for PTSD.Methods:Sixty Sprague-Dawley (SD) rats were randomly divided into a blank control group,a model group,a grasping group,a paroxetine group and an acupuncture group,with 12 rats in each group.Except for rats in the blank control group,rats in the other groups were subjected to preparing the PTSD models using 'incarceration plus electric shock' method.After interventions,changes in rat behavior of each group were observed;changes in resting-state EEG were collected and analyzed with multichannel EEG acquisition and analysis system,and image analysis and statistical processing were performed.Results:Compared with the blank control group,the average escape latency in the model group was significantly longer (P＜0.05),and the times of crossing the platform and the effective areas were all significantly reduced (P＜0.01).Compared with the grasping group,the average escape latencies in the paroxetine group and acupuncture group were significantly shortened (P＜0.05),and the times of crossing the platform and the effective areas were all significantly increased (P＜0.05).There were no significant differences in the average escape latency,the times of crossing the platform and the effective areas between the acupuncture group and paroxetine group (all P＞0.05).Compared with the blank control group,the α-wave power spectrum value in the model group was significantly decreased,and the power spectrum values of β-wave,δ-wave and a-wave were significantly increased (all P＜0.01);compared with the grasping group,α-wave power spectrum values in the paroxetine group and acupuncture group were significantly increased (both P＜0.01),and the power spectrum values of β-wave,δ-wave and a-wave were decreased significantly (all P＜0.01).The power spectrum values of α-wave,β-wave,δ-wave and (e)-wave of rats in the acupuncture group were not significantly different from those in the paroxetine group (all P＞0.05).Conclusion:Liver-soothing and mind-regulating acupuncture method can significantly improve the abnormal EEG activity in PTSD rats,which may be one mechanism of liver-soothing and mind-regulating acupuncture method in effectively affecting the brain function in PTSD rats.展开更多
文摘Objective: To observe the effect of acupuncture on blood oxygen concentration in the brain of rats with post-traumatic stress disorder (PTSD) based on functional near-infrared spectroscopy (fNIRS), thus to reveal the mechanisms of acupuncture in intervening the brain function of PTSD rats. Methods: Sixty Sprague-Dawley (SD) rats were randomly divided into a blank group, a model group, a grasping group, a paroxetine group and an acupuncture group, with 12 rats in each group. Except the blank group, rats in the other groups all received incarceration plus electric shock for 7 d to prepare the PTSD animal model. One hour before the stress model was established, rats in each group received the desig nated in tervention: rats in the blank group and the model group did not receive any intervention;rats in the grasping group received grasping and fixation;rats in the paroxetine group received paroxetine hydrochloride solution by intragastric administration;and rats in the acupuncture group received acupuncture. Six-day treatme nt was a course, with 2 courses of treatme nt con ducted for a total of 12 d. After the modeli ng, rats in each treatment group received intervention for 5 dz and the fNIRS system was used to collect and record the changes in the concentrations of oxygenated hemoglobin (HbO2), deoxygenated hemoglobin (d-Hb) and total hemoglobin (t-Hb) of the involved rat's brain regions, and also to assess the brain function. Results: Compared with the blank group, the con centrati on of HbO2 was significa ntly in creased, the concen trati on of d-Hb was significa ntly decreased, and the concen tration of t-Hb was sign ifica ntly in creased in the model group and the graspi ng group after the in tervention, and the differ en ces were statistically significant (all P<0.01). Compared with the model group, the concentrations of HbO2, d-Hb and t-Hb in the grasping group did not change significantly (all P>0.05). Compared with the grasping group, the concentration of HbC^was significantly decreased, the concentration of d-Hb was significantly in creased, and the concen trati on of t-Hb was sign ifica ntly decreased in the paroxeti ne group and the acup un cture group, and the differences were statistically sigrdficant (all P<0.05). There were no significant differences in the concentrations of HbO2, d-Hb and t-Hb between the paroxetine group and the acupuncture group (all P>0.05). Con elusion: Acup un cture can regulate the blood oxyge n conce ntrati on in the brain of PTSD model rats, which may be an important mechanism of acupuncture in intervening the brain function in PTSD rats.
文摘Objective: To observe the effects of acupuncture on the characteristics of neuro-electrophysiological activity in hippocampal CAI and CA3 areas of rats with post-traumatic stress disorder (PTSD). Methods: Fifty Sprague-Dawley (SD) rats were randomly divided into a blank group, a model group, a grasping group, a Western medicine group and an acupuncture group, with 10 rats in each group. Except for the blank group, rats in the other 4 groups all received the combined stress modeling method. Rats in the Western medicine group were intragastrically administrated with paroxetine hydrochloride, those in the acupuncture group received acupuncture intervention, those in the grasping group received grasping fixation, and those in the model group and the blank group did not receive any in terve ntions. After 14 d of in terve ntion, the interspike in terval (ISI) and power spectral den sities (PSD) were an a lyzed and mapped by in vivo multiple channels to record the neuron clusters discharge in the hippocampal CAI and CA3 areas. Results: Compared with the blank group, ISI was proIonged in the CAI and CA3 areas of the model group and the grasping group, and the concentrated PSD distribution area moved down (Pv0.05 or P<0.01). Compared with the grasping group, the ISI of the CAI and CA3 areas in the Western medicine group and the acupuncture group was shortened, and the concentrated PSD distribution area moved up (P<0.05 or P<0.01). The ISI and PSD distributions in the CAI and CA3 areas of the acupuncture group were not statistically different from those in the Western medicine group (both P>0.05). Conclusion: Both acupuncture and paroxetine hydrochloride can significantly regulate the neuro-electrophysiology activity of hippocampal CAI and CA3 areas in PTSD rats, which may be one of the mechanisms of acupuncture intervention to promote PTSD recovery.
基金Regional Science Fund of National Natural Science Foundation of China(国家自然科学基金地区基金项目,81460744)%Natural Science Foundation of Gansu Province,China(中国甘肃省自然科学研究基金计划项目,1308RJZA150)
文摘Objective:To observe the effect of liver-soothing and mind-regulating acupuncture method on the resting-state electroencephalography (EEG) in rats with post-traumatic stress disorder (PTSD),and to provide evidence for the effect mechanism study and clinical application of acupuncture intervention for PTSD.Methods:Sixty Sprague-Dawley (SD) rats were randomly divided into a blank control group,a model group,a grasping group,a paroxetine group and an acupuncture group,with 12 rats in each group.Except for rats in the blank control group,rats in the other groups were subjected to preparing the PTSD models using 'incarceration plus electric shock' method.After interventions,changes in rat behavior of each group were observed;changes in resting-state EEG were collected and analyzed with multichannel EEG acquisition and analysis system,and image analysis and statistical processing were performed.Results:Compared with the blank control group,the average escape latency in the model group was significantly longer (P＜0.05),and the times of crossing the platform and the effective areas were all significantly reduced (P＜0.01).Compared with the grasping group,the average escape latencies in the paroxetine group and acupuncture group were significantly shortened (P＜0.05),and the times of crossing the platform and the effective areas were all significantly increased (P＜0.05).There were no significant differences in the average escape latency,the times of crossing the platform and the effective areas between the acupuncture group and paroxetine group (all P＞0.05).Compared with the blank control group,the α-wave power spectrum value in the model group was significantly decreased,and the power spectrum values of β-wave,δ-wave and a-wave were significantly increased (all P＜0.01);compared with the grasping group,α-wave power spectrum values in the paroxetine group and acupuncture group were significantly increased (both P＜0.01),and the power spectrum values of β-wave,δ-wave and a-wave were decreased significantly (all P＜0.01).The power spectrum values of α-wave,β-wave,δ-wave and (e)-wave of rats in the acupuncture group were not significantly different from those in the paroxetine group (all P＞0.05).Conclusion:Liver-soothing and mind-regulating acupuncture method can significantly improve the abnormal EEG activity in PTSD rats,which may be one mechanism of liver-soothing and mind-regulating acupuncture method in effectively affecting the brain function in PTSD rats.
