慢性营养:非常早产母乳中宏观营养素的24小时变化
Alja Bijlsma1, Demy van Gilst2, Inês Chaves2
1Division Preventive Youth Health Care, Public Health Services Region Utrecht (GGD Regio Utrecht), Utrecht, the Netherlands; Department of Neonatal and Pediatric Intensive Care, Division of Neonatology, Erasmus MC Sophia Children's Hospital, Erasmus University Medical Center, Rotterdam, the Netherlands.
Early human development
|January 14, 2026
概括
超过一半的非常早产母乳样本显示了宏观营养素的日间变化,特别是脂肪含量. 在母亲中,更长的孕期与增加牛奶宏观营养素节律性有关.
科学领域:
- 人类牛奶研究 人类牛奶研究
- 新生儿营养新生儿营养
- 生物化学 生物化学
背景情况:
- 人母乳的成分动态变化,以支持婴儿的成长.
- 虽然已知婴儿奶的日间变化,但早产乳的变化尚不清楚.
研究的目的:
- 研究非常早产母乳中巨量营养素含量的日间变化.
主要方法:
- 在3天内从非常早产婴儿 (<30周怀孕) 的母亲收集了连续的牛奶样本.
- 使用中红外光谱测量测量脂肪,真正的蛋白质和碳水化合物含量.
- 分析了宏观营养素的节律性及其与母亲和婴儿因素的关联.
主要成果:
- 55%的牛奶系列表现出24小时的宏观营养素节律性.
- 脂肪含量在41%的样本中显示出节律性;碳水化合物,蛋白质和能量显示出较低的比例 (18%,14%,27%).
- 较长的母亲怀孕时间与宏观营养素节律性增加的几率相关.
结论:
- 白天宏观营养素节律性存在于超过一半的非常早产母乳中.
- 脂肪含量表现出最频繁的节奏性,具有不同的高峰时间.
- 母亲因素,如更长的孕期影响牛奶组成节奏.
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