骨的内分泌功能被口服葡萄糖抑制,无论体重如何
Niki Jalava1, Terhi J Heino1, Pirjo Nuutila2,3
1Institute of Biomedicine, University of Turku, Turku, Southwest Finland, Finland.
Clinical endocrinology
|November 25, 2025
概括
口服葡萄糖的摄入迅速影响骨代谢标记物,包括骨基因,在正常体重和肥胖的人群中. 肥胖可能会微妙地改变这些骨对葡萄糖的代谢反应.
科学领域:
- 内分泌学 在内分泌学.
- 骨的新陈代谢 骨的新陈代谢
- 代谢疾病 代谢疾病
背景情况:
- 骨是糖尿病并发症的目标,骨基因在能量代谢中发挥作用.
- 代谢变化对骨代谢的影响尚未完全理解.
- 已知摄入葡萄糖会降低骨的吸收,但其对骨质激素的影响尚不清楚.
研究的目的:
- 为了研究口服摄入葡萄糖对循环中的骨质激素水平的影响.
- 为了比较正常体重和肥胖个体之间的这些反应.
- 为了确定肥胖是否会改变身体对葡萄糖的反应,从而影响骨代谢.
主要方法:
- 参与者接受了口服葡萄糖耐受性测试 (OGTT).
- 测量了循环中的骨循环标记物的水平:原I的C端端端皮质 (b-CTX-I),总骨素 (OC),硬质素,纤维细胞生长因子23 (cFGF23),非碳氧化OC和脂素2 (LCN2).
- 在基线和OGTT后2小时,对正常体重 (BMI<26 kg/m2) 和肥胖 (BMI>28 kg/m2) 个体进行了测量.
主要成果:
- 在两组中,OGTT显著降低了骨质再吸收 (b-CTX-I) 42%.
- 在这两组中,骨基因水平 (OC,FGF23) 也显著下降.
- 肥胖表明非碳氧化OC和硬质素的特异性下降,与正常体重个体相比,b-CTX-I和OC的反应发生改变的趋势.
结论:
- 骨基因对口服葡萄糖表现出快速的反应,无论体重如何.
- 口服葡萄糖对骨循环和内分泌功能都有影响.
- 肥胖可能会影响口服葡萄糖后的骨周转标记物的循环水平.
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