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重新分类的 HPGD p.Ala13Glu 变种引起的初级高性骨关节病变

Juan J Alban¹, Alejandra Arango-Ramirez¹, Jorge A Olave-Rodriguez²

¹Fundación Valle del Lili, Center of Clinical Research, Cali, 760026, Colombia.

Cold Spring Harbor molecular case studies

|August 17, 2023

概括

这项研究将HPGD基因的一个变异重新归类为可能致病的. 这一发现有助于对原发性多变性骨关节病 (PHOAR) 和遗传变异解释的理解.

科学领域:

遗传学遗传学是一个
分子生物学分子生物学
临床医学临床医学

背景情况:

初级增多性骨关节病 (PHOAR) 是一种罕见的遗传性疾病.
HPGD基因中的遗传变异与PHOAR有关.
在HPGD中,特定变异c.38C > A,p.Ala13Glu以前具有不确定的意义.

研究的目的:

重新评估HPGDc.38C>A,p.Ala13Glu变种的致病性.
为了帮助准确的基因诊断的原发性多变性骨关节病.

主要方法:

整体外体测序 (WES) 用于识别遗传变异.
分析了HPGD变种患者的临床特征.
使用人口数据库 (gnomAD),计算预测和隔离分析来评估变异致病性.

主要成果:

一名31岁的男性患者在HPGD基因中呈现了PHOAR的临床特征和同卵性c.38C>A,p.Ala13Glu变异.
报告了另一名患有相同表型和同卵性HPGD变异的患者.
这种变种在gnomAD数据库中不存在,并且得到了计算预测的支持.

结论:

在两个PHOAR患者中观察到的同卵性HPGDc.38C > A,p.Ala13Glu变体被重新归类为可能致病的.
这次重新分类改进了对PHOAR的遗传理解.
精确的变体分类对于诊断罕见遗传疾病至关重要.

关键词:

肢体肌肉的异常肢体肌肉的异常

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