我们曾观察到针麻手术病人术中网膜和胃壁交感神经介质荧光组织化学变化及胃壁神经的超微结构变化与针麻效果有关。针麻效果较好者

其交感神经纤维及末梢内含有较多的去甲肾上腺素

针麻效果差者

含量明显减少。动物在针麻下

其变化又是怎样?为了进一步验证这一变化规律

我The changes of noradrenaline content in the adrenergic nerves of the stomach wall have beeninvestigated by glyoxylic acid-induced fluorohistochemical method.The experimental results revealed that there were more noradrenergic nerve terminals with morefluorescent intensity in the dogs with excellent effect of acupuncture anesthesia

but less noradrenergicterminals with weak fluorescent intensity in those with poor effect of acupuncture anesthesia.These results suggest that there is an increase of storage and a decreased release of noradrenalineduring operation in dogs with good acupuncture anesthetic effects;on the contrary

an increased re-lease with decreased storage in those with poor effects.All these changes are similar to those observedin clincal patients.