在患有先天性甲状腺功能低下症的患者中常见和罕见的DUOX变体:病例对照研究和基于家庭的分析
Yaning Jia1,2, Xiaoyu Wang1,2,3, Liqin Zhang4
1Medical Genetics Department, The Affiliated Hospital of Qingdao University, Qingdao 266071, China.
The Journal of clinical endocrinology and metabolism
|February 24, 2025
概括
罕见和常见的双氧化酶 (DUOX) 基因变异与先天性甲状腺功能低下症 (CH) 有关. 这些DUOX变异,以自身相性衰退模式遗传,为CH的发展和管理提供了新的见解.
科学领域:
- 遗传学 遗传学 是一个
- 内分泌学 在内分泌学.
- 分子生物学分子生物学
背景情况:
- 双氧化酶 (DUOX) 对于甲状腺激素的合成至关重要.
- 罕见的DUOX变异与先天性甲状腺功能低下症 (CH) 有关,但遗传和基因型-表型相关性尚不清楚.
- 常见的DUOX变体在CH风险中的作用尚未确定.
研究的目的:
- 调查与罕见和常见的DUOX变体相关的CH的分子和临床方面.
- 为了澄清与DUOX相关的CH.的遗传模式和基因型-表型关系.
- 评估常见的DUOX变体对CH敏感性的贡献.
主要方法:
- 针对罕见变异的203CH三组中DUOX基因的下一代测序.
- 在DUOX基因中的八个标记单核酸多态 (SNP) 的基因定型,用于298个三组和439个常见变异的对照.
- 病例控制和基于家庭的传播不平衡测试,以分析与SNP相关的CH风险.
主要成果:
- 罕见的DUOX变体占CH遗传原因的16.3% (DUOX2: 14.3%,DUOXA2: 2.0%),具有自体逆向遗传.
- 患有罕见DUOX变异的患者表现出dyshormonogenesis和转移性CH的倾向,需要较少的levothyroxine.
- 五种常见的DUOX SNPs与CH风险有显著的关联;一些给予保护 (例如,DUOX1 rs16939752),而另一些增加了敏感性 (例如,DUOX2 rs269868).
结论:
- DUOX变种被证实是CH的自体逆行性原因.
- 这项研究提供了对罕见和常见的DUOX变体的全面分析,增强了对CH病变的理解.
- 结果提供了对DUOX相关的CH更准确的见解,有助于诊断和管理.
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