阴道菌株中断综合征是由新型化合物异构基因突变引起的KATNIP基因中的异构基因突变
S Bahar Akin1, I Tolga Ozgen2, B Uyanik3
1Health Sciences University Derince Training and Research Hospital - Department of Pediatrics, Division of Pediatric Endocrinology, Kocaeli.
在儿童中,垂体茎中断综合征 (PSIS) 与生长激素和其他激素缺乏有关. 基因分析在KATNIP基因中发现了新型化合物异合体变异体,进步了对PSIS病因学的理解.
科学领域:
- 遗传学和内分泌学
- 发展生物学 发展生物学
背景情况:
- 垂体茎中断综合征 (PSIS) 是一种先天性疾病,由缺席/薄的垂体茎,外阴后垂体 (EPP) 叶片和缺席/低质前垂体叶片的三位一体定义.
- 脑垂体综合症 (PSIS) 往往表现为多种脑垂体激素缺乏症,影响生长和发育.
研究的目的:
- 为了调查PSIS的遗传基础,在一个患者呈现特征性的荷尔蒙缺乏和解剖异常.
- 识别和描述与PSIS相关的新型遗传变异.
主要方法:
- 对一名1岁男孩进行临床评估,该男孩患有小阴茎,未下降的丸和多种下垂体激素缺乏症.
- 磁共振成像 (MRI) 评估垂体腺形态和垂体茎.
- 整体外体序列测序 (WES) 用于遗传变异识别.
- 家庭分离分析以确认变异性遗传模式.
主要成果:
- 该患者表现出经典的PSIS特征,包括垂体缺血,EPP和MRI上缺少垂体茎.
- 在 *KATNIP* 基因 (NM_0.15202.5) 中,WES 确定了复合异构性变体 (c.1461G>A 和 c.4035delC).
- 家庭隔离证实了这些变体处于变体配置.
结论:
- 在 *KATNIP* 基因中的复合异合体变异因子涉及到垂体干中断综合征的病因.
- 这一发现扩大了PSIS已知的遗传景观,并突出了*KATNIP*在垂体发育中的作用.
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