在MCT8缺陷中具有SLC16A2变异个体的表型谱
Kirsty McWalter1, Houda Zghal Elloumi1, Richard Sidlow2
1GeneDx LLC, Gaithersburg, MD, USA.
HGG advances
|May 15, 2025
概括
由SLC16A2基因变异引起的单碳酸盐运输体8 (MCT8) 缺乏影响甲状腺激素运输. 标准化的HPO术语有助于描述这种罕见的X链状况及其基因型-表型相关性.
科学领域:
- 遗传学和分子生物学
- 内分泌学 在内分泌学.
- 临床的表型化 临床的表型化
背景情况:
- 单碳酸盐运输体8 (MCT8) 缺乏症是一种罕见的X相关疾病,源于SLC16A2基因的致病变异,破坏甲状腺激素运输.
- 人类表现型本体学 (HPO) 术语为描述人类疾病症状提供了标准化的临床词汇.
研究的目的:
- 贡献一组具有分类SLC16A2变异和相关HPO术语的个体,以扩大对MCT8缺乏症的表型谱的理解.
- 通过使用标准化临床数据,分析MCT8缺乏的基因型-表型相关性.
主要方法:
- 查询了SLC16A2变异的非识别遗传数据,主要通过外基因组测序识别.
- 从医疗记录中进行临床抽象,以生成具有特征SLC16A2变异的108个个体的HPO术语.
- 在122个人的队列中,确定了68例可能致病/致病 (L/PATH) 变体和54例不确定的变体 (VUS).
主要成果:
- 总共收集了611个不同的HPO术语. 常见的术语包括全球发育迟缓 (73.1%),泛型低血压 (37.0%) 和言语和语言发育迟缓 (26.9%).
- 与VUS相比,L/PATH变异的个体中,严重的MCT8缺陷表型,如无法壮成长和食困难,在L/PATH变异的个体中更为普遍.
- 与甲状腺功能相关的HPO术语很少被报告,仅在6名患者中发现甲状腺功能低下症.
结论:
- 综合性遗传检测与标准化临床词汇 (HPO术语) 结合,对于诊断罕见的遗传疾病,如MCT8缺乏,是有价值的.
- 这种方法有助于表征基因型-表型相关性,促进及时进行甲状腺激素检测,并增强对受影响个人及其照顾者的支持.
关键词:
在AHDS中,我们可以使用AHDS.艾伦·赫伦顿·达德利综合征 艾伦·赫伦顿·达德利综合征在 HPO HPO 中.人类现象型本体学这是一个MCT8缺陷.临床遗传学 临床遗传学外基因组测序是指外基因组的测序.基因型-表型 基因型-表型罕见疾病是一种罕见的疾病.甲状腺激素是甲状腺激素的一种.更多相关视频
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