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LIUSONGYAN WANGFAN 《Biomedical and environmental sciences : BES》1991,4(4):359-365
Experiments were performed to investigate the change of hepatic T4 5'-deiodination and the preventive effects of selenium (Se) and vitamin E in rats fed grains from a Keshan disease (KD) endemic area. The results showed that consumption of the endemic grain for 8 weeks caused a significant reduction in hepatic T4 5'-monodeiodinase and glutathione peroxidase activities, and a marked enhancement of hepatic malondialdehyde content. These changes could be effectively prevented through Se or vitamin E supplementation to the diet. These observations confirm the reduced ability of hepatic T4 5'-deiodination induced by the pathogenic factors existing in the endemic grains, and the preventive effects of selenium and vitamin E on the alterations. The present study suggests that the reduction in hepatic T4 deiodination in these animals may be the consequence of hepatic damage owing to uncontrolled free radical metabolism, and that the relative deficiency of vitamin E, besides selenium deficiency, may also play a role in the pathogenesis of KD. 相似文献
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维生素,又名维他命,是维持和调节机体正常代谢的重要物质.维生素是个庞大的家族,目前所知的维生素有几十种,大致可分为脂溶性和水溶性两大类.前者包括维生素A、D、E、K,后者包括维生素B族和维生素C,以及许多存在于人体组织中的“类维生素”.它们以生物活性物质的形式在体内各显神通.维生素在人体内不能自行合成,必须从食物中摄取. 相似文献
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木瓜牛内粒 牛肉具有高蛋白、低脂肪的特点,可防止肥胖,预防动脉硬化、高血压和冠心病;木瓜不仅含有丰富的维他命C,还具有一些抗氧化物质,有增强抵抗力和抗癌的效果。 相似文献
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YIYI 《健康与美容:上半月》2013,(11):34-35
这是一款能为面部肌肤带来专业SPA感的舒适洁颇乳。丰富柔软的泡沫,彻底清除彩妆残留和老化角质,提亮肤色。当然,它不只是一瓶洁颜乳,在清洁的同时蕴合维他命E,可以有效抗氧化,减少损伤.功效不容小觑。 相似文献
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人人都明白维他命对我们的健康至关重要,听听街上的流行歌曲纷纷把爱情比作维他命就知道。但有时太熟悉的风景反而容易被忽略,关于维他命的知识我们掌握得也许根本没有自己想象中那么多呢。请花点时间来了解一下维他命家族与我们健康生活的“美味关系”吧。 相似文献