46,XY性发育障碍的分子诊断:在单中心研究中,使用定制设计的向基因小组进行有效的初始分子分析
概括
下一代测序 (NGS) 改善了46,XY性发育障碍 (DSD) 的诊断. 这项研究在27.7%的患者中确定了致病变体,强调了NGS作为遗传评估的宝贵工具.
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:
- 46,XY性发育障碍 (DSD) 由于遗传多样性和各种表现而带来诊断挑战.
- 准确的诊断对于适当的患者管理和咨询至关重要.
研究的目的:
- 描述46XY DSD患者的临床和遗传发现.
- 评估针对分子诊断的下一代测序 (NGS) 面板的实用性.
主要方法:
- 在112名非综合症46,XY DSD.患者中使用了分析31个基因的向NGS小组.
- 患者被分为发生性腺发育,雄激素合成或作用的障碍.
- 变种分类遵循了ACMG标准.
主要成果:
- 在38种检测到的变种中,32种是致病性或可能致病性,其中19种是新型.
- 在31名患者中实现了分子诊断 (27.7%的诊断收益率).
- 最常见的是HSD17B3,NR5A1和LHCGR变种;遗传发现导致8名患者的诊断重新分类.
结论:
- NGS显著提高了46,XY DSD的诊断产量.
- 对于没有分子诊断的患者,需要进一步进行全面的基因组分析.
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