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本实验观察在低硒（Ｓｅ）饮食环境下锰（Ｍｎ）与蛋白质对大鼠体内谷胱甘肽过氧化物酶（ＧＳＨ－Ｐｘ）活性的影响。实验结果表明，在低硒环境下低蛋白可降低大鼠全血、肝脏、心脏的ＧＳＨ－Ｐｘ活性；而低蛋白高锰的协同作用则更进一步降低大鼠体内ＧＳＨ－Ｐｘ的活性。
In this study, we observed the effects of manganese (Mn) and protein on glutathione peroxidase (GSH-Px) activity in rats under low-Se diet. The results showed that low protein in low selenium environment could decrease GSH-Px activity in whole blood, liver and heart of rats, while synergistic effect of low protein and high manganese could further reduce GSH-Px activity in rats.