一个非常低能量的快速涉及增加脂肪炎性基因表达:一个6天的食试验 (FASTOMICS-6)
Marianne Bråtveit1,2, Pouda P Strømland2, Johnny Laupsa-Borge1,3
1Centre for Nutrition, Department of Clinical Science, University of Bergen, Norway.
The Journal of clinical endocrinology and metabolism
|October 28, 2025
概括
六天非常低能量的快速显著改变了肥胖患者的新陈代谢,增加了体和炎症,同时改善了胰岛素敏感性. 这表明炎症和自途径是适应禁食的关键.
科学领域:
- 代谢研究的研究.
- 人类生理学 人类生理学
- 营养科学 营养科学
背景情况:
- 禁食和性饮食提供潜在的健康益处.
- 禁食期间的人类组织机制和代谢变化需要进一步研究.
研究的目的:
- 为了研究6天非常低能量的快速后皮下脂肪组织 (SAT) 基因表达,血代谢和血清标记的变化.
- 了解肥胖个体对短期禁食的分子和代谢适应.
主要方法:
- 13名患有肥胖症 (BMI 41.6) 的患者参加了为期6天的600卡路里/天养研究.
- 身体组成,血液和SAT分析了禁食前后的代谢学和转录学.
- 基因组丰富分析 (GSEA) 和权重基因相关联网络分析 (WGCNA) 用于推断生物学途径.
主要成果:
- 观察到脂肪质量 (-2.07%) 和无脂肪质量 (-4.42%) 的显著减少.
- 基体 (+615%) 和α-基酸盐 (+103%) 显著增加.
- 禁食胰岛素 (-41.2%),HOMA2-IR (-31.8%) 和高级糖化最终产品 (AGEs) 降低,如碳氧乙氨酸 (-46.0%) 和碳氧甲氨酸 (-50.9%).
- SAT显示了上调的炎症反应和下调的氧化酸化,脂肪生成,脂肪酸代谢和mTORC1信号.
结论:
- 六天非常低能量的禁食增加了脂肪炎症基因表达.
- 血AGE减少,胰岛素敏感性得到改善.
- 这些发现表明,炎症和自相关途径在代谢适应性禁食的过程中起着作用.
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