1·Objective: To compare the distribution of enkephalin (ENK) in the vocal and auditory nuclei of male Carduelis spinus and Lonchura Striata.
目的：比较脑啡肽（ENK）在雄性黄雀与白腰文鸟发声核团和听觉中枢内的分布差异。
2·AIM: To study the host immune surveillance functions by the neuropeptide methionine enkephalin (met-enk).
目的：研究甲硫氨酸脑啡肽对机体免疫监督功能的影响。
3·Objective: To find out the changes of leucine enkephalin (l EK) levels in brain and serum in rat model of spleen asthenia.
目的：研究各脑区和血清亮氨酸脑啡肽(L EK)含量的变化。