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Updated: Sep 14, 2025

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Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model
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双杆菌的枯竭通过肠-甲状腺轴促进:来自孟德尔随机化和实验验证的证据
Wenyong Liao1, Yang Jiang1, Jiwen Zhang1
1Beijing University of Chinese Medicine, Beijing, China.
Frontiers in microbiology
|July 22, 2025
概括
减少的Bifidobacterium可能会通过通过短链脂肪酸 (SCFA) 损害吸收和甲状腺激素合成来引起. 这突出了肠-甲状腺轴对潜在的预防.
科学领域:
- 微生物学 微生物学
- 内分泌学 在内分泌学.
- 遗传学 是一个遗传学.
背景情况:
- 肠道微生物群失调与甲状腺疾病有关,但其在的因果作用尚未完全理解.
- 肠道微生物,短链脂肪酸 (SCFA),和甲状腺功能之间的相互作用需要进一步研究.
研究的目的:
- 研究特定肠道微生物种类对风险的因果影响.
- 阐明短链脂肪酸 (SCFA) - - 甲状腺轴在病原发生中的作用.
主要方法:
- 孟德尔的随机化 (MR) 分析使用大规模的全基因组关联研究 (GWAS) 的肠道微生物群和的数据.
- 实验验证在甲 (PTU) 诱导的子大鼠模型中,包括16S rRNA测序,SCFA量化,和甲状腺激素测量以及-合载体 (NIS) 分析.
主要成果:
- 核磁共振分析确定了10种与风险相关的肠道微生物种群,其中Bifidobacterium bifidum显示有保护作用.
- 在鼠中,减少的B. bifidum与酸盐合成受损,减少的SCFA,减少甲状腺吸收,降低NIS表达和甲状腺功能障碍相关.
结论:
- 双杆菌的枯竭可能通过SCFA介导的NIS依赖的摄取和甲状腺激素合成的损害,因果性地导致的发展.
- 这项研究为肠-甲状腺轴提供了证据,并提出了子预防和治疗的潜在目标.
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