The results were as follows: 1.Urethane anesthesia and operation procedure greatly reduced the content of leu-enkephalin in all the brain areas studied with the exception of corpus striatum.

• 该工作在乌拉坦麻醉大鼠上，用放射免疫测定方法测定了电刺激尾壳核对六个脑区(下丘脑、纹状体、丘脑、海马、皮层及脑干)两种脑啡肽含量的影响。