電針內(nèi)關(guān)穴對心肌缺血小鼠心肌ATP敏感鉀通道蛋白及蛋白激酶的影響
[Abstract]:Aim: to observe the effect of electroacupuncture at Neiguan point on the expression of ATP sensitive potassium channel subunit (S UR2A,SUR2B,Kir6.1,Kir6.2) and protein kinase (PKA,PKC- 尾) in ASIC3-/- mice with acute myocardial ischemia. Materials and methods: forty healthy 8-week-old ASIC3-/- mice (C57BL/6) were selected and supplied by Beijing Weitonglihua Experimental Animal Technology Co., Ltd. The experiment began after a week of adaptive feeding. The mice were randomly divided into 6 groups, including blank group, model group, Neiguan group, lack group, Zusanli group and non-meridian non-acupoint group. Myocardial ischemia model was prepared by subcutaneous injection of isoproterenol (20mg/kg) for two days without treatment. Electrocardiogram (ECG) of each group of mice was measured before and after modeling. After the intervention, electrocardiogram (ECG) and the expression of ATP sensitive potassium channel protein and protein kinase in ventricular muscle tissue were measured again. Results: 1. After acupuncture intervention, T wave amplitudes in Neiguan group, Zusanli group and Zusanli group increased significantly compared with model group, but there was no statistical significance in non-meridian non-acupoint group. There was no statistical difference in T wave amplitude between Neiguan group and train deficiency group and Zusanli group. 2. Compared with model group, the expression of ATP sensitive potassium channel protein (S UR2A,SUR2B,Kir6.1,Kir6.2) in Neiguan group, column deficiency group and Zusanli group was significantly decreased after acupuncture intervention. Compared with the model group, the content of PKA,PKC- 尾 in the Neiguan group and the column deficiency group decreased significantly after acupuncture intervention. Conclusion: 1. Electroacupuncture at Neiguan point can improve the changes of T wave in myocardial ischemia mice. 2. Electroacupuncture at Neiguan point could decrease the expression of ATP sensitive K + channel protein SUR2A,SU R2BX Kir6.1 and Kir6.2 subunit in myocardial ischemia mice. Electroacupuncture at Neiguan point reduced the expression of protein kinase (PKA) and protein kinase 尾 (PKC- 尾) in mice with myocardial ischemia. For the model of myocardial ischemia, the effect of electroacupuncture at Neiguan acupoint was better than that of Lie-deficiency point and Zusanli point, and the regulation of Kir6.2,SUR2A subunit and PKA reflected the specificity of Neiguan acupoint along meridian.
【學(xué)位授予單位】:遼寧中醫(yī)藥大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2016
【分類號】:R245
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