目的探讨褪黑素(MT)对大鼠胃应激性溃疡的影响及机制。

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

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目的探讨褪黑素对睡眠剥夺大鼠记忆的影响及其机制。

Objective: to explore the effect of melatonin on memory of rat with sleep deprivation.

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结论褪黑素可预防克山病病区低硒粮引起的大鼠肝脏损伤，其保护作用可能与抗氧化机制有关。

Conclusion Melatonin can prevent rat liver from damage caused by low-selenium diet of Keshan disease areas because of antioxidative effect.

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