Perrone L, Di Palma L, Di Toro R, Gialanella G, Moro R
Dipartimento di Pediatria, Università di Napoli, Italy.
J Trace Elem Electrolytes Health Dis. 1993 Dec;7(4):245-7.
Human milk is believed to provide all the nutrients necessary for normal infant growth. The present study is concerned with the evaluation of longitudinal changes in Fe, Cu, Zn, Se, Br, Pb, Rb, and Sr milk contents over a long period of lactation. A total of 140 milk samples from 26 lactating mothers were supplied from the 2nd to the 180th day after delivery of a full-term healthy infant. Cu, Zn, and Se showed a time-dependent decrease, with similar 10-day half-times. Br and Pb showed correlations with time, but the data fitting produced very short (2-3 days) half-times. The Fe, Rb, and Sr contents were constant over the lactation time. After about one month of lactation, trace element contents tend to stabilise, as do other milk components.
人们认为母乳能提供正常婴儿生长所需的所有营养物质。本研究关注的是在长期哺乳期内母乳中铁、铜、锌、硒、溴、铅、铷和锶含量的纵向变化。从26位哺乳期母亲那里总共采集了140份母乳样本，这些样本取自足月健康婴儿出生后第2天至第180天。铜、锌和硒呈现出随时间的下降趋势，半衰期相似，均为10天。溴和铅与时间存在相关性，但数据拟合得出的半衰期非常短（2 - 3天）。铁、铷和锶的含量在整个哺乳期内保持恒定。哺乳期约一个月后，微量元素含量以及其他母乳成分往往趋于稳定。
