摘要
实验用12只麻醉家兔,分为2组:A组为双侧颈迷走神经切断组(n=6);B组为颈迷走神经传入纤维放电观察组(n=6)。电针AB两组兔"肾俞"穴,观察到A组兔尿量逐渐减少,起针后90～120 min达最低点(P<0.05);B组针刺后迷走传入纤维放电逐渐增加(P<0.05)。以上结果证实去双侧颈迷走神经兔,针刺"肾俞"穴的利尿效应消失。提示:针刺"肾俞"穴后,迷走神经部分传入纤维放电增加可能起两方面作用:①与血浆精氨酸加压素浓度降低有关;②正常情况下可抑制肾交感神经传出纤维活动。
Twelve anesthetized rabbits were divided into two groups. In group A were animals with denervation of vagus nerves on both sides(n=6). After accupuncting 'Shenyu' Point,not only diuretic response was not observed,but the urine flow rate was lower than that before accupuncture,the lowest value appearing at 90-120 minutes after with drawing the needles. In group B were animals with intact vagus nerve ,whose discharge of afferent vagus nerve was examinde (n=6). After aeeupunc ture,the discharge increased gradually ( P d0. 05). From above results, it might be postulated that vagal afferent impulsesmight play two important roles : (1) resulting in significant decrease of plasma AVP level. (2) Inhibition of efferent renal sympathetic nerve activity after excitation of the vagus nerve.
关键词
针刺疗法
肾俞穴
迷走神经
精氨酸加压素
Acupuncture
Shenyu point
Vagus nerve
Arqinine vasopressin
Animals, laboratory
Rabbits
