紧密的关系,GATA4和NR5A1突变的相似表型:淋巴腺发育不良和青春期的发展
Sema Nilay Abseyi1, Zeynep Şıklar2, Elif Özsu2
1Pediatric Endocrinology, Ankara University, Ankara, Turkey. semanilay.abseyi@saglik.gov.tr.
Journal of endocrinological investigation
|September 30, 2025
概括
GATA4和NR5A1基因的突变可以导致具有多种表型的性发育障碍 (DSD). 这些基因突变应在46,XY DSD患者中考虑,特别是那些经历青春期病毒化的人.
科学领域:
- 遗传学 是一个遗传学.
- 内分泌学 在内分泌学.
- 发育生物学 发展生物学
背景情况:
- 性差异化涉及复杂的基因相互作用,特别是GATA4和NR5A1,从生殖腺发育到丸差异化至关重要.
- GATA4和NR5A1的突变与莱迪格和塞尔托利细胞发育中的类似表型有关.
- 虽然有报道称NR5A1突变导致青春期病毒化,但以前没有记录过与GATA4相关的病毒化.
研究的目的:
- 为了评估46名XY淋巴腺发育不良患者的特征,XY淋巴腺发育不良患者具有NR5A1和GATA4突变.
- 确定GATA4和NR5A1相关性性发育障碍 (DSD) 的诊断线索.
主要方法:
- 分析了来自8个NR5A1和/或GATA4突变家族的10个46,XY个体的临床和荷尔蒙特征.
- 表型评估包括生殖器,荷尔蒙特征和青春期发育.
主要成果:
- 所有十个病例都呈现出淋巴腺失调的特征,表现出诸如模两可的生殖器,阴道流产或青春期病毒化等可变表型.
- 10名患者中,有6名是女性.
- 一名患有GATA4突变的患者和两名患有NR5A1突变的患者在青春期表现出雄性化,扩大了已知的表型谱.
结论:
- 在DSD病例中应该怀疑异常的GATA4基因表达,即使没有先天性心脏病.
- NR5A1和GATA4基因突变是DSD患者呈现青春期病毒化的差异诊断中的重要考虑因素.
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