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首页> 外文期刊>Nutrition >Trace-element status in milk and plasma of Kuwaiti and non-Kuwaiti lactating mothers.
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Trace-element status in milk and plasma of Kuwaiti and non-Kuwaiti lactating mothers.

机译：科威特和非科威特哺乳母亲的牛奶和血浆中的微量元素状态。

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摘要

There is a wide variation in the reported data on the concentrations of trace elements in human milk from different countries, but such data are not available for Kuwait. The objective of this study was to analyze the concentration of zinc, copper, manganese, and iron in milk and plasma of Kuwaiti and non-Kuwaiti mothers during prolonged lactation. Milk samples (from 34 donors) were collected early in the morning before feeding the infant. Trace elements were analyzed using atomic absorption spectrophotometry. Protein content and activity of superoxide dismutase were assayed spectrophotometrically. Concentration of zinc, copper, iron, and total protein and activity of superoxide dismutase in milk and of only zinc in plasma of Kuwaiti mothers were significantly higher than those of non-Kuwaitis. Concentration of zinc, copper, manganese, and total protein in milk of both groups decreased as lactation continued but that of milk iron and plasma trace elements remained unchanged. The data of Kuwaiti mothers are consistent with those of previous reports on hyperuricemia, and the prevalence of obesity was found to be higher in the Kuwaiti population than in other countries. High protein content in association with high concentration of trace elements in milk of Kuwaiti versus non-Kuwaiti mothers may indicate that protein content in milk is an important determining factor for the concentration and bioavailability of these elements.
机译：关于来自不同国家的母乳中微量元素浓度的报告数据差异很大，但科威特没有这些数据。这项研究的目的是分析长期哺乳期间科威特和非科威特母亲的牛奶和血浆中锌，铜，锰和铁的浓度。在喂养婴儿之前的清晨，采集了牛奶样品（来自34个捐赠者）。使用原子吸收分光光度法分析痕量元素。分光光度法测定蛋白质含量和超氧化物歧化酶活性。牛奶中的锌，铜，铁和总蛋白的浓度以及超氧化物歧化酶的活性以及科威特母亲血浆中仅锌的含量显着高于非科威特人。随着泌乳的继续进行，两组奶中锌，铜，锰和总蛋白的浓度均随着泌乳时间的延长而降低，但铁奶和血浆中的微量元素保持不变。科威特母亲的数据与先前有关高尿酸血症的报道一致，并且发现科威特人口中肥胖的发生率高于其他国家。高蛋白含量与科威特和非科威特母亲的牛奶中微量元素的高浓度有关，这可能表明牛奶中的蛋白质含量是这些元素的浓度和生物利用度的重要决定因素。

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