延长哺乳期适度补充硒可提高牛奶硒含量

Maggie L. Dylewski, Mary Frances Picciano
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引用次数: 6

摘要

在泌乳的前6个月,以硒酸盐、硒蛋氨酸或富硒酵母的形式补充硒(Se),每天补充100–200μg Se,可增加或防止母乳硒含量下降。在这项研究中,我们评估了以硒酸钠的形式补充硒(每天20μg)的影响,该量与每天通过乳汁分泌损失的硒量非常接近。哺乳期妇女(n=23)提供了产后3个月和6个月的饮食数据以及牛奶和血浆样本。产后3个月,所有妇女每天补充维生素/矿物质,以硒酸钠形式提供20μg硒,持续3个月。自选日粮中硒的平均摄入量为111±40μg/天,在3个月和6个月之间没有差异。补充硒使母乳硒含量从产后3个月(295±18nmol/L;23±7ng/mL)增加到产后6个月(417±39nmol/L,32±14ng/mL)(P≤0.01),相应的婴儿硒摄入量从12μg/天增加到20μg/天。产后3个月母体血浆硒浓度为1.46±0.42μmol/L(115±33 ng/mL),产后6个月母体血清硒浓度为1.76±0.20μmol/L(155±16 ng/mL)。母亲每天补充20微克硒,母乳硒含量增加41%,婴儿硒摄入量相应增加67%。数据表明,补充每天分泌量或接近每天分泌量的硒足以防止母乳硒含量随着泌乳期的延长而下降。J.Trace Elem。Exp.Med.15:191–1992002。©2002 Wiley-Liss,股份有限公司。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Milk selenium content is enhanced by modest selenium supplementation in extended lactation
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