摘要
实验采用中华大蟾蜍(Bufo Bufo gargarizans)离体肠段,观察了去甲肾上腺素(NE)和亮氨酸脑啡肽(L—ENK)对蟾蜍离体肠段的自发收缩和电场诱发收缩中的作用,并对递质的相互作用以及递质的作用与动物机能状态的关系进行了初步分析.结果表明,NE 对饱食状态下的肠段自发及诱发收缩具有抑制作用,而对较长时间饥饿状态下的肠段产生兴奋作用,L—ENK 的作用相反,经典递质和肽递质的作用可相互调节和变化,从而适应不同的机能状态.
Experiments are pcrformcd in vitro with intestine picce of toad.The effects of norepinephrine(NE)and Leu-enkephalin(L-ENK)in spontaneous and electrically induced intestine piece contraction had been observed,while the interaction of transmitters and interaction of transmitters and animal physiological state also had been analysed preliminarily.The results are as follows:NE inhibit the spontaneous and electrical induced contraction of toad intestine under feed state and excitatory under longer starvation state. The result of L—ENK is contrary to NE.The effects and interaction of model and pcpitic transmitters might be changed to adapt oneself to the changed conditions.
出处
《陕西师大学报（自然科学版）》
CSCD
1992年第1期54-56,共3页
Journal of Shaanxi Normal University(Natural Science Edition)
关键词
去甲肾上腺素
脑啡肽
蟾蜍
小肠
norepinephrine
enkephalin
toad
small intestine
