FOXG1变异可能与比先天性雷特综合征更温和的表型有关,与无助行走和语言发展有关
Benoit Mazel1,2, Julian Delanne1,3, Aurore Garde1,2
1Centre de Référence Anomalies du Développement et Syndromes Malformatifs, Centre de Génétique, FHU TRANSLAD - CHU Dijon Bourgogne, Dijon, France.
概括
福克斯G1基因中的遗传变异可能导致一系列神经发育障碍. 这项研究确定了与特定FOXG1变异相关的较温和的表型,有助于诊断和预后.
科学领域:
- 遗传学 是一个遗传学.
- 神经发育障碍 神经发育障碍
- 罕见疾病 罕见疾病
背景情况:
- FOXG1的哈普洛缺陷通常与严重的神经发育障碍有关,类似于早期发病的雷特综合征.
- 从历史上看,FOXG1基因测序仅限于严重病例,限制了对其全临床谱的理解.
- 下一代测序 (NGS) 为罕见遗传疾病提供了更广泛的诊断能力.
研究的目的:
- 为了研究FOXG1变异的临床谱,超出严重的神经发育现象型.
- 在患有较轻度FOXG1相关疾病的患者中确定基因型-表型相关性.
- 改进对FOXG1.1的预后评估和变体解释.
主要方法:
- 来自罕见形综合征,智力和其他神经发育障碍的欧洲参考网络的回顾性数据收集.
- 包括5名新确诊的患者和3名先前报告的异合体FOXG1变体和轻度表型 (独立行走和说话) 的病例.
- 审查和分析现有的基因型-表型数据,包括Mitter等. "的分类. 这是分类.
主要成果:
- 发现了5名具有致病性FOXG1误解变异的新患者,主要在叉领域.
- 这些变体呈现出可变的,非特异性的智力障碍和发育迟缓,与典型的先天性雷特综合征不同.
- 较温和的表型与位于FOXG1叉域内的误解变异有显著的关联.
- 在这个队列中,很少观察到小头症和.
结论:
- 异卵性FOXG1变异体包括比以前认可的更广泛的临床谱,包括较温和的神经发育现象型.
- 叉领域的误解变异与不太严重的结果有关,从而使更好的预后预测成为可能.
- 基因组测序和详细的基因型-表型分析对于理解和诊断FOXG1相关疾病至关重要.
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