1.AIM: To observe the effect of electroacupuncture or photic stimuli zeitgeber on the expression of nitricoxide synthase in suprachiasmatic nucleus of golden hamsters.

• 目的:通过观察针刺及光信息等不同授时因子导引对金黄地鼠视交叉上核一氧化氮合酶表达的影响。