OBJECTIVE To study the effects of melatonin(MT)on the immune functions in immunodepression mice treated by cyclophosphamide (CY) or dexamethasone(DEX).

• 目的:研究褪黑素(melatonin,MT)对环磷酰胺(cyclophosphamide,CY)或地塞米松(dexamethasone,DEX)所致免疫功能抑制小鼠的免疫功能的作用。