Çetinkaya Aslihan Köse, Dizdar Evrim Alyamaç, Yarcı Erbu, Sari Fatma Nur, Oguz Serife Suna, Uras Nurdan, Canpolat Fuat Emre
Zekai Tahir Burak Maternity Teaching Hospital, Ankara, Turkey.
Am J Perinatol. 2017 Jun;34(7):693-696. doi: 10.1055/s-0036-1597327. Epub 2016 Dec 16.
To determine the within-day variation of fat, protein, and carbohydrate content of breast milk. The study was conducted at Zekai Tahir Burak Maternity Teaching Hospital between April 2013 and January 2014. We obtained milk samples from lactating mothers of hospitalized infants through hand expression after breast-feeding or pumping three times a day. A mid-infrared human milk analyzer was used for measuring the macronutrient contents of breast milk samples. Lactating mothers of 52 infants (30 preterm, 22 term) were recruited to the study. No significant difference was found in protein, fat, and carbohydrate content of milk samples throughout the day. We compared within-day variation of macronutrients of transitional and mature milk, milk samples from the mothers of preterm and term infants, and samples collected by either hand expression or pumping. We did not find a significant difference between the groups. Absence of circadian variations in lipid, carbohydrate, and protein content of breast milk in our study may be related to ethnic differences, maternal nutritional status, different milk content measurement technique, and population characteristics.
确定母乳中脂肪、蛋白质和碳水化合物含量的日内变化。该研究于2013年4月至2014年1月在泽凯·塔希尔·布拉克妇产教学医院进行。我们通过在一天内三次母乳喂养或吸乳后手工挤奶的方式，从住院婴儿的哺乳期母亲那里获取乳汁样本。使用中红外母乳分析仪测量母乳样本中的常量营养素含量。52名婴儿（30名早产儿，22名足月儿）的哺乳期母亲被纳入该研究。全天母乳样本中的蛋白质、脂肪和碳水化合物含量未发现显著差异。我们比较了过渡乳和成熟乳、早产儿母亲和足月儿母亲的乳汁样本以及通过手工挤奶或吸乳收集的样本中常量营养素的日内变化。我们未发现各组之间存在显著差异。本研究中母乳中脂质、碳水化合物和蛋白质含量不存在昼夜变化，可能与种族差异、母亲营养状况、不同的乳汁含量测量技术以及人群特征有关。
