The influence of Iraqi mothers' socioeconomic status on their milk-lipid content
The influence of Iraqi mothers' socioeconomic status on their milk-lipid content
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DOI：
10.1038/sj.ejcn.1602470
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发表时间：
2006-12-01
影响因子：
4.7
通讯作者：
Mahmood, A. A.
中科院分区：
文献类型：
--
作者：
Al-Tamer, Y. Y.;Mahmood, A. A.
目的：探讨伊拉克母亲成熟母乳的脂肪含量和脂肪酸组成，特别是n(3)长链多不饱和脂肪酸(n(3)LCPUFAs)及其与母亲社会经济地位的关系。设计：收集三种不同社会经济地位(哺乳期571月)的母亲的成熟母乳。地点：伊拉克北部的摩苏尔省。N=15)和典型郊区(n=25)。过程：从每个哺乳期母亲采集成熟乳样。用酶法测定各样品的甘油三酯(TGS)、胆固醇(C)和磷脂(PLs)。结果：胡母、鲁母、苏母的n(3)LCPUFAs含量分别为0.48+/-0.025、0.37+/-0.029和0.38+/-0.018%。乳脂的主要成分TGS含量，胡、苏、鲁母分别为5.64+/-0.24、5.21+/-1.61和3.21+/-0.92g/100ml。结论：哺乳期母亲的社会经济状况影响着乳脂含量和脂肪酸组成，尤其是视网膜、脑等神经组织的重要结构成分n3-LCPUFAs的水平。与发达国家母亲和世卫组织推荐的最佳婴儿营养相比，研究组的成熟母乳中n3 LCPUFA的含量较低。对FA甲酯样品的分析在法国国家科学研究中心进行。
Objective: To investigate the lipid content and fatty acid (FA) composition, especially n(3) long-chain polyunsaturated fatty acids (n(3) LCPUFAs) of mature breast-milk of Iraqi mothers and their relation to the socioeconomic status of the mothers.Design: A collection of mature breast-milk of mothers with three different socioeconomic status (lactation period 571 month).Setting: Mosul province (in the north of Iraq).Subjects: Mature breast-milk samples were obtained from a group of 20- to 35-year-old mothers with different socioeconomic status: high urban (HU, n = 25), low urban (LU, n = 15) and typical suburban (SU, n = 25).Procedure: Mature-milk samples were collected from each lactating mother. The lipid components of each sample, namely triglycerides (TGs), cholesterol (C) and phospholipids (PLs) were determined enzymatically. After their separation and esterification, FAs were determined as FA methyl esters by capillary gas chromatography.Results: The percentages of n(3) LCPUFAs were 0.48 +/- 0.025, 0.37 +/- 0.029 and 0.38 +/- 0.018% for HU, LU and SU mothers, respectively. The amount of TGs, the major component of milk lipid, was 5.64 +/- 0.24, 5.21 +/- 1.61 and 3.21 +/- 0.92 g/100 ml for HU, SU and LU mothers, respectively. The milk-lipid content varied with the socioeconomic status.Conclusion: The socioeconomic status of lactating mothers affected the lipid content and FA composition, especially the level of n3 LCPUFAs (the very important structural constituents of the retina, brain and other nervous tissues). Mature breast-milk for the studied groups was low in n3 LCPUFAs compared with that of mothers from developed countries and that recommended by WHO for optimum infant nutrition.Sponsorship: Supported by grants from Department of Chemistry, University of Mosul. The analysis of FA methyl ester samples was performed at the National Centre for Scientific Research, France.