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Updated: Jan 10, 2026

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A Murine Model of Vertical Sleeve Gastrectomy
Published on: December 18, 2017
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维生素D受体是袖子胃切除术后代谢健康所必需的
bioRxiv : the preprint server for biology
|November 24, 2025
概括
维生素D受体 (VDR) 对于小鼠减肥手术后代谢改善至关重要. 缺少VDR会损害葡萄糖控制和胰岛素敏感性,突出其在外科手术代谢效益中的作用.
科学领域:
- 内分泌学 在内分泌学.
- 代谢手术 代谢手术
- 肥胖问题研究研究
背景情况:
- 维生素D受体 (VDR) 在调节胰岛素敏感性方面发挥作用.
- 代谢性减肥手术 (MBS) 对肥胖和2型糖尿病 (T2D) 有效,但其代谢效应对VDR的依赖性尚不清楚.
研究的目的:
- 研究VDR在饮食诱导肥胖 (DIO) 小鼠中对袖子胃切除术 (SG) 的代谢反应中的作用.
主要方法:
- 饮食诱导的肥胖VDR淘汰赛 (KO) 和野生型 (WT) 小鼠接受了SG或假手术.
- 手术后的评估包括葡萄糖/胰岛素耐受性测试,以及血清,白色脂肪组织 (WAT),肝脏和结肠内容的分析.
- 人体皮下脂肪组织 (SAT) VDR基因表达在有/没有MBS病史的患者中被分析.
主要成果:
- 与WT SG小鼠相比,KO SG小鼠显示葡萄糖利用和胰岛素敏感性受损,尽管体重减轻类似.
- 在KO SG小鼠中的WAT表现出较低的质量,较小的脂肪细胞和增加的炎症.
- 在WT (增加) 和KO (减少) 的小鼠中,SG改变了结肠胆酸CA7S水平.
- 在SAT中,MBS患者表现出更高的VDR表达.
结论:
- 在DIO小鼠中,VDR对于SG的代谢益处至关重要,影响WAT功能,胰岛素敏感性和炎症.
- 人类在MBS后增加的VDR表达表明,它在代谢适应减肥手术的过程中起着保留的作用.
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