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与肥胖相关的妊娠糖尿病促进新生儿后代岛屿细胞异质性和功能障碍
Xiangju Cao1, Jian Wang2, Xinyu Jia1
1Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao 266071, China.
Nutrients
|February 13, 2026
概括
孕妇在怀孕期间接触西方饮食 (WD) 会导致妊娠期糖尿病 (GDM),导致后代代谢问题. 后代群岛表现出改变的α/β细胞平衡和β细胞损伤,突出显示了代际糖尿病传播的风险.
科学领域:
- 内分泌学 在内分泌学.
- 代谢健康 代谢健康
- 发展生物学 发展生物学
背景情况:
- 孕妇在怀孕期间过度营养会影响后代的代谢健康.
- 西方饮食对新生儿小岛发育的具体影响尚不清楚.
研究的目的:
- 调查母体WD暴露对新生儿岛屿细胞发育和异质性的影响.
- 了解将母亲的饮食与后代代谢功能障碍联系在一起的分子机制.
主要方法:
- 建立了一个WD诱导的妊娠糖尿病 (GDM) 鼠标模型.
- 评估葡萄糖平衡 (血糖,血清胰岛素) 和岛屿功能 (胰岛素分泌).
- 利用单细胞RNA测序 (scRNA-seq) 来分析小岛细胞异质性和基因表达.
主要成果:
- 母亲WD诱导GDM,导致后代低血糖症,高胰岛素症和葡萄糖稳定性受损.
- scRNA-seq揭示了后代岛屿中不平衡的α/β细胞子集,并扩展了成熟的子集.
- 后代β细胞表现出代谢过度活跃,线粒体功能障碍和内质网膜压力.
结论:
- 从母体WD诱导的GDM转移到后代的代谢失调,破坏小岛细胞平衡,加速成熟.
- 后代的岛屿发育加速与β细胞器官损伤有关.
- 研究结果表明,早期的营养干预可以减轻代际糖尿病传播.
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