由于Klinefelter综合征和CACNA1C变异的严重神经发育障碍:一个病例报告
Imen El Kamel El Lebbi1, Séverine Bacrot2, Myrtille Spentchian2
1Laboratoire de Génétique Biologique, CHU Besançon, Université de Franche-Comté, Besançon, France.
Case reports in pediatrics
|November 28, 2025
概括
克莱因费尔特综合征 (KS) 可以呈现出不同程度的严重程度. 这一案例突出了与CACNA1C基因变异相关的严重KS表现,强调了复杂病例需要先进的遗传测试的必要性.
科学领域:
- 遗传学 是一个遗传学.
- 内分泌学 在内分泌学.
- 神经发育障碍 神经发育障碍
背景情况:
- 克莱因菲尔特综合征 (KS) 是一种常见的性染色体形形状,临床表现不同.
- 典型的KS特征包括身高高大,低子体,学习障碍等.
- 异常或严重的表现需要进一步的研究超出了初始诊断.
研究的目的:
- 报告一个异常严重的表型的Klinefelter综合征病例.
- 使用外体序列测序识别严重表现的潜在遗传贡献者.
- 强调在复杂的KS病例中先进基因测试的作用.
主要方法:
- 对一名13岁的男性诊断出克莱因费尔特综合征的临床评估.
- 外体序列测序 (ES) 用于识别遗传变异.
- 与患者的表型相关的鉴定变异的分析.
主要成果:
- 该患者出现了严重的发育迟缓,行为问题和身体异常,超过了典型的KS严重程度.
- 外基因测序揭示了CACNA1C基因 (c.2662del p[Arg888Glyfs*18]) 中的一种新异质合体的框架转移变体.
- 已知CACNA1C变异与神经发育障碍,低血压,语言延迟和骨缺陷有关.
结论:
- 这一案例表明,严重的Klinefelter综合征表现可能涉及二次遗传因素.
- 鉴定到的CACNA1C变异可能导致患者的非典型和严重的表型.
- 在复杂的KS病例中,全面的遗传调查对于准确的诊断,管理和遗传咨询至关重要.
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