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杨智文;许安萍;张阳;孙千惠;仇兴华;张宇沁;韩丽;李娜;程凯.针刺改善不可预知性温和应激模型大鼠心功能及外周piezo表达[J].中国中西医结合杂志,2023,43(10):1236-1241
针刺改善不可预知性温和应激模型大鼠心功能及外周piezo表达
Effect of Acupuncture on Cardiac Function and Peripheral Piezo Expression in Unpredictable Mild Stress Model Rats
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DOI:10.7661/j.cjim.20230823.152
中文关键词:  压力应激  心功能  piezo低阈值机械感受器  内关穴  背根神经节  针刺
英文关键词:stress-stressed  cardiac function  piezo low threshold mechanoreceptor  nei guan(PC6)  dorsal root ganglions  acupuncture
基金项目:首都卫生发展科研专项项目(No.首发2022-3-6111);北京中医药大学校级横向课题(No.BUCM-2022-JS-FW-003)
作者单位
杨智文;许安萍;张阳;孙千惠;仇兴华;张宇沁;韩丽;李娜;程凯 1.北京中医药大学针灸推拿学院(北京 100029),2.中国航天科工集团七三一医院(北京 100074),3.北京中医药大学中医学院(北京 100029) 
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中文摘要:
      目的 探究电针、手针不同机械刺激方式对不可预知性温和应激模型(CMS)大鼠心功能及外周起效机制研究。方法 SD大鼠50只,根据心电图剔除先天心脏疾病大鼠后纳入40只,随机分为空白、模型、手针、电针组,每组10只。采用8周CMS造模,干预组每日造模前针刺“内关”(左右侧交替进行)。采用行为学、心脏超声、HE/Masson染色、qPCR评估大鼠压力应激下心脏和外周组织的应激水平。结果 与空白组比较,模型组糖水偏好降低(P<0.01),开放臂停留时间比例(OE%)减少(P<0.01),左心室射血分数(LVEF%)、左心室短轴缩短率(LVFS%)降低(P<0.01),心肌间质纤维化面积以及皮肤组织(SK)、背根神经节(DRG)组织piezo mRNA表达增多(P<0.01)。与模型组比较,手针组开放臂进入次数比例(OT%)、LVFS%增加(P<0.01,P<0.05),电针组LVEF%、LVFS%增加(P<0.05);且两组心间质纤维化面积降低(P<0.01),糖水偏好增高(P<0.01),OE%增加(P<0.01,P<0.05),腧穴SK、DRG组织piezo mRNA表达降低(P<0.01)。结论 电针、手针均不同程度改善压力应激大鼠心血管功能与外周组织应激水平,其起效机制与降低外周组织piezo表达水平有关。
英文摘要:
      Objective To explore the effect of different mechanical stimulation methods of electroacupuncture and hand acupuncture on cardiac function and peripheral mechanism of chronic mild stress(CMS)rats. Methods A total of 50 SD rats with congenital heart disease were eliminated by ECG,the remaining 40 rats were randomly divided into four groups(blank,model,hand acupuncture and electroacupuncture),with 10 rats in each group. CMS was used for 8-week modeling,and the intervention group needled “Neiguan”(PC6,left and right side alternately)before modeling every day. The stress levels in the heart and peripheral tissues of rats under stress were evaluated by behavioral,cardiac ultrasound,HE/Masson staining and qPCR. Results Compared with the blank group,the model group showed a decrease in sugar preference and open arm entry percent(OE%,P<0.01),left ventricular ejection fractions(LVEF%) and left ventricular fractional shortening(LVFS%,P<0.01),area and piezo mRNA expression increased in skin tissue(SK) and dorsal root ganglions(DRG) tissues(P<0.01). Compared with the model group,the open arm time percent (OT%) and LVFS% in the hand acupuncture group showed a significant increase(P<0.01,P<0.05),and the LVEF% and LVFS% in the electroacupuncture group increased(P<0.05). The expression of myocardial interstitial fibrosis area in the cardiac interstitium of both groups decreased(P<0.01),sugar preference increased(P<0.01),OE% increased(P<0.01,P<0.05),and the expression of piezo mRNA in SK and DRG tissues decreased(P<0.01).Conclusion Electroacupuncture and hand acupuncture both improved the cardiovascular function and peripheral tissue stress levels of stress-stressed rats to different degrees,and the mechanism was related to reducing the expression level of "piezo" in peripheral tissues.
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