AIM to observe the effect of melatonin (MT) on morphine withdrawal syndromes and determine the content of NO in plasma and brain tissue in morphine dependent mice.

目的观察褪黑激素(MT)对小鼠吗啡戒断反应及血浆、脑组织中NO含量的影响。

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Objective: to study the counteraction of melatonin (MT) on the immunodepression induced by cyclophosphamide (cy) and dexamethasone (dex).

目的：研究褪黑素(melatonin, MT)对环磷酰胺(cyclophosphamide, cy)、地塞米松(dexamethasone, dex)所致免疫低下的对抗作用。

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Objective to explore the protective effects and mechanism of melatonin (MT) on gastric stress ulcers in rats.

目的探讨褪黑素(MT)对大鼠胃应激性溃疡的影响及机制。

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