Magdalena Babiszewska-Aksamit, Marek Szołtysik, Anna Apanasewicz, Magdalena Piosek, Patrycja Winczowska, Agnieszka Cierniak, Dariusz P. Danel, Anna Ziomkiewicz
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We suggest that social support may have the potential to attenuate a negative effect of stress on the composition of human milk fatty acids.</p>\n </section>\n \n <section>\n \n <h3> Methods</h3>\n \n <p>We studied 129 exclusively breastfeeding mothers and their healthy, term infants to explore the relationship between support from significant others (structural and functional) and the concentration of docosahexaenoic acid (DHA, <i>N</i> = 49) and arachidonic acid (AA, <i>N</i> = 129) in human milk. We also examined whether maternal stress reactivity (log Cort. AUC) may be related to these fatty acids. Gas chromatography was used to analyze the concentration of DHA and AA in human milk samples.</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>Analyses revealed a positive association between the number of helpers (structural support) and the concentration of DHA and AA. 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引用次数: 0
摘要
社会因素，如亲属和非亲属在帮助新生儿母亲方面的支持，会影响哺乳时间，并可能影响母乳成分。最近的研究表明，母亲的压力会对母乳中的多不饱和脂肪酸水平产生负面影响，而多不饱和脂肪酸对婴儿的视力和大脑发育至关重要。我们认为，社会支持可能有可能减轻压力对人乳脂肪酸组成的负面影响。方法对129名纯母乳喂养的母亲及其健康足月婴儿进行研究，探讨重要他人支持（结构和功能）与母乳中二十二碳六烯酸（DHA, N = 49）和花生四烯酸（AA, N = 129）浓度的关系。我们还检查了母亲的应激反应(log Cort。AUC)可能与这些脂肪酸有关。采用气相色谱法分析人乳样品中DHA和AA的浓度。结果分析显示，帮助者（结构支撑）的数量与DHA和AA浓度呈正相关。母亲的应激反应不是牛奶中DHA和AA含量的统计显著预测因子，与帮助者的数量无关。结论我们的研究结果首次表明母乳成分，特别是DHA和AA浓度，可能与母亲的直系亲属和非亲属帮手的社会网络的大小有关。这一结果与强调合作繁殖在人类生殖中的作用的进化研究是一致的。
The Concentration of Docosahexaenoic Acid (DHA) and Arachidonic Acid (AA) in Human Milk Is Associated With the Size of Maternal Social Network
Introduction
Social factors, such as kin and non-kin support in helping the mother of a newborn baby, impact the duration of lactation and may affect human milk composition. Recent studies suggest that maternal stress negatively affects the level of polyunsaturated fatty acids in human milk, which are crucial for infant vision and brain development. We suggest that social support may have the potential to attenuate a negative effect of stress on the composition of human milk fatty acids.
Methods
We studied 129 exclusively breastfeeding mothers and their healthy, term infants to explore the relationship between support from significant others (structural and functional) and the concentration of docosahexaenoic acid (DHA, N = 49) and arachidonic acid (AA, N = 129) in human milk. We also examined whether maternal stress reactivity (log Cort. AUC) may be related to these fatty acids. Gas chromatography was used to analyze the concentration of DHA and AA in human milk samples.
Results
Analyses revealed a positive association between the number of helpers (structural support) and the concentration of DHA and AA. Maternal stress reactivity was not a statistically significant predictor of DHA and AA contents in milk and was unrelated to the number of helpers.
Conclusion
Our results show for the first time that human milk composition, particularly DHA and AA concentrations, may be associated with the size of mothers' immediate social network of kin and non-kin helpers. This result is consistent with evolutionary studies that emphasize the role of cooperative breeding in human reproduction.
期刊介绍：
The American Journal of Human Biology is the Official Journal of the Human Biology Association.
The American Journal of Human Biology is a bimonthly, peer-reviewed, internationally circulated journal that publishes reports of original research, theoretical articles and timely reviews, and brief communications in the interdisciplinary field of human biology. As the official journal of the Human Biology Association, the Journal also publishes abstracts of research presented at its annual scientific meeting and book reviews relevant to the field.
The Journal seeks scholarly manuscripts that address all aspects of human biology, health, and disease, particularly those that stress comparative, developmental, ecological, or evolutionary perspectives. The transdisciplinary areas covered in the Journal include, but are not limited to, epidemiology, genetic variation, population biology and demography, physiology, anatomy, nutrition, growth and aging, physical performance, physical activity and fitness, ecology, and evolution, along with their interactions. The Journal publishes basic, applied, and methodologically oriented research from all areas, including measurement, analytical techniques and strategies, and computer applications in human biology.
Like many other biologically oriented disciplines, the field of human biology has undergone considerable growth and diversification in recent years, and the expansion of the aims and scope of the Journal is a reflection of this growth and membership diversification.
The Journal is committed to prompt review, and priority publication is given to manuscripts with novel or timely findings, and to manuscripts of unusual interest.
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