新生儿MTHFR rs1801133 变体和极低出生体重:一个病例对照研究和元分析
Bartosz Skulimowski1, Anna Durska2, Alicja Sobaniec3
1Department of Ophthalmology, Poznan University of Medical Sciences, 60-569 Poznan, Poland.
Genes
|October 29, 2025
概括
新生儿MTHFR基因型与低出生体重有关,具有特定人群的影响. 这种遗传变异影响了极低出生体重 (ELBW) 和相关并发症的风险.
科学领域:
- 遗传学 遗传学 是一个
- 新生儿科学 新生儿科学
- 公共卫生 公共卫生
背景情况:
- 极低出生体重 (ELBW) 和极低妊娠年龄 (ELGA) 是新生儿发病率和死亡率的重要原因.
- 同类氨酸代谢基因,MTHFR和PON1,正在研究它们在早产并发症中的作用.
研究的目的:
- 检查MTHFR和PON1基因的功能变异与ELGA,ELBW和其他早产并发症的风险之间的关联.
- 进行元分析,将当前研究结果与现有文献数据相结合.
主要方法:
- 使用TaqMan测定对377名婴儿,164名母亲和404名人口对照进行MTHFR和PON1变异的基因定型.
- 对五项研究 (1156例,124例对照) 的元分析,以确认相关性.
主要成果:
- 胎儿MTHFR rs1801133基因型与ELBW (OR=1.65),支气管肺功能障碍症,动脉管和新生儿死亡率相关.
- 分析证实了MTHFR基因型与低出生体重 (LBW) 的相关性,特别是TT同胞体中rs1801133T等位基因 (OR=1.41).
- 亚组分析揭示了人口特异性影响:发达国家的保护性,其他国家的风险因素. 没有发现PON1协会.
结论:
- 新生儿MTHFR基因型被证实为全球LBW作出贡献.
- rs1801133T等位基因对LBW表现出特定于种群的保护性或风险效应.
- 这些发现强调了考虑遗传背景的重要性,以了解早产的结果.
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