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正常和异常母乳生产的基因组特征

Yarden Golan¹, Sarah K Nyquist², Zhe Liu^3,4

¹Division of Nutritional Sciences, Cornell University, Ithaca, USA.

medRxiv : the preprint server for health sciences

|July 16, 2025

概括

这项研究揭示了与低母乳生产相关的关键遗传因素和细胞差异. 牛奶脂肪球体 (MFG) 显示出作为生物标志物的潜力,以了解牛奶供应问题.

科学领域:

人类哺乳期哺乳期
分子生物学分子生物学
婴儿健康婴儿健康

背景情况:

纯母乳养对于婴儿的健康至关重要,但低牛奶供应是常见的.
缺乏足够的牛奶生产的分子基础在很大程度上是未知的.
了解这些因素对于改善婴儿和母亲健康状况至关重要.

研究的目的:

研究哺乳期个体低乳生产的分子和细胞基础.
创建一个全面的母乳转录学目录.
探索牛奶脂肪球体 (MFG) 作为牛奶转录组分析的生物标志物的潜力.

主要方法:

使用基因组和微生物组技术分析新鲜牛奶样本 (30个哺乳动物).
牛奶脂肪球 (MFG),牛奶细胞和乳腺组织的大量RNA测序.
转录和单细胞RNA分析以确定基因表达和细胞组成差异.

主要成果:

牛奶脂肪球 (MFG) 衍生的RNA成分与光乳细胞的RNA成分相似.
鉴定了低和高乳生产者之间的基因表达和细胞类型的显著差异,突出了GLP1R,PLIN4和KLF10基因.
婴儿微生物群的多样性与养类型有关,而不是母乳供应水平.

结论:

牛奶脂肪球体 (MFG) 可以作为一种有价值的生物标志物用于人乳转录组分析.
特定的基因和细胞组成与不同水平的牛奶生产有关.
这项研究提供了对影响人乳供应的遗传因素的关键见解.

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