一例与CDKN1C相关的家族贝克威思-维德曼综合征病例
Lyndsay Creswell1, Pranav Pandya1, Sara Hillman1
1Fetal Medicine Unit, University College London Hospital, London, UK.
Prenatal diagnosis
|January 23, 2026
概括
一种致病性CDKN1C变体,与贝克威斯-维德曼综合征 (BWS) 一致,在一个胎儿中被发现,胎儿患有腹和下级虫低成形. 这一遗传发现突显了BWS和后异常之间的联系.
科学领域:
- 遗传学 遗传学 是一个
- 发展生物学 发展生物学
- 儿科医学 儿科医学
背景情况:
- 贝克威斯-维德曼综合征 (BWS) 是一种复杂的过度生长障碍,具有可变的临床表现.
- 在BWS中,可以出现后异常,包括下层虫低成形.
- CDKN1C基因在胚胎发育中起着至关重要的作用,并且经常与BWS有关.
研究的目的:
- 为了调查胎儿异常的遗传原因,包括腹和下级虫低成形.
- 确定CDKN1C变异在观察到的表型中的作用.
- 探索BWS和后缺陷之间的关联.
主要方法:
- 在受影响的胎儿和父母身上进行了产前三元外体序列测序.
- 在候选基因中识别致病变体.
- 在兄弟姐妹身上进行了有针对性的基因测试.
主要成果:
- 在胎儿中发现了一种由母亲遗传的致病性CDKN1C变体.
- 鉴定出的变种与贝克维思-维德曼综合征 (BWS) 一致.
- 实验对象的兄弟姐妹被证实携带相同的CDKN1C变异.
结论:
- 一种致病性CDKN1C变体与胎儿腹和下级虫低成形有关.
- 这一案例支持了BWS,特别是CDKN1C功能丧失变体和后异常之间的联系.
- 产前外体序列测序是诊断复杂胎儿表型的一个有价值的工具.
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