性别确认激素疗法通过肠道微生物组保护年轻小鼠的骨成熟
Subhashis Pal1,2, Xochitl Morgan3, Hamid Y Dar1,2
1Division of Endocrinology, Metabolism and Lipids, Department of Medicine and.
The Journal of clinical investigation
|March 26, 2024
概括
性别确认激素治疗 (GAHT) 通过通过肠道微生物组变化增强骨形成,有利于雄性小鼠的骨健康. 在雌性小鼠中,GAHT没有显著影响骨结构.
科学领域:
- 内分泌学 在内分泌学.
- 微生物组研究 微生物组研究
- 骨生物学 骨生物学
背景情况:
- 性别确认激素治疗 (GAHT) 对跨性别青少年至关重要,但其对骨的影响仍在调查中.
- 了解GAHT对骨发育的影响对于综合护理至关重要.
研究的目的:
- 为了研究GAHT对骨结构和骨周转的影响,在青春期前的小鼠模型中.
- 探索肠道微生物组和免疫细胞在调解GAHT骨效应中的作用.
主要方法:
- 向年轻的雄性和雌性小鼠注射GAHT.
- 使用微型计算机断层扫描分析骨结构.
- 进行了便微生物群移植 (FMT) 实验.
- 评估肠道免疫细胞群 (Tregs) 及其迁移到骨髓.
主要成果:
- 在雄性小鼠中,GAHT改善了椎骨结构,增加了骨的形成.
- 在雌性小鼠中,GAHT并没有改变骨结构.
- 在两性中,GAHT调节了肠道微生物组.
- FMT研究表明GAHT修饰的微生物调节了男性的骨,但不是女性.
- 在雄性小鼠中,GAHT增加了Treg群体,后者迁移到骨髓中,促进了骨代谢.
结论:
- 在雄性小鼠中,GAHT增强骨形成并通过涉及Treg扩张的微生物组依赖机制改善骨结构.
- 在男性中观察到的GAHT的骨效应在女性中没有复制.
- 肠道微生物组和Treg细胞是GAHT在男性的合成骨效应的关键调解者.
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