检验医学 ›› 2021, Vol. 36 ›› Issue (2): 140-146.DOI: 10.3969/j.issn.1673-8640.2021.02.005

• 基因组技术与罕见病诊治专题 • 上一篇    下一篇

GRIN1突变相关发育迟缓患儿临床特征和基因突变特点分析

卢亚亚1, 丁宇2, 姚如恩3, 王依柔2, 张倩文2, 李群2, 王剑3, 王秀敏2(), 娄丹1()   

  1. 1.河南科技大学第一附属医院儿科,河南 洛阳 471000
    2.上海交通大学医学院附属上海儿童医学中心内分泌代谢科,上海 200127
    3.上海交通大学医学院附属上海儿童医学中心分子诊断实验室,上海 200127
  • 收稿日期:2020-05-29 出版日期:2021-02-28 发布日期:2021-02-28
  • 通讯作者: 王秀敏,E-mail:wangxinmin1019@126.com;娄 丹,E-mail:loudan69@163.com。
  • 作者简介:卢亚亚, 女, 1981年生, 硕士, 主治医师, 主要从事儿童生长发育相关研究; 丁 宇, 女, 1981年生, 硕士, 副主任医师, 主要从事儿科内分泌相关疾病的研究。 卢亚亚与丁宇对本研究具有同等贡献,并列为第一作者。
  • 基金资助:
    上海儿童医学中心横向课题资助项目(PEGRF201506011)

Analysis of clinical and genetic characteristics of GRIN1 mutation-related underdevelopment

LU Yaya1, DING Yu2, YAO Ruen3, WANG Yirou2, ZHANG Qianwen2, LI Qun2, WANG Jian3, WANG Xiumin2(), LOU Dan1()   

  1. 1. Department of Pediatrics,the First Affiliated Hospital of Henan University of Science and Technology,Luoyang 471000,Henan,China
    2. Department of Endocrinology and Metabolism,Shanghai Children's Medical Center,Shanghai Jiao Tong University School of Medicine,Shanghai 200127,China
    3. Department of Medical Genetics and Molecular Diagnostic Laboratory,Shanghai Children's Medical Center,Shanghai Jiao Tong University School of Medicine,Shanghai 200127,China
  • Received:2020-05-29 Online:2021-02-28 Published:2021-02-28
  • Contact: WANG Xiumin,E-mail:wangxinmin1019@126.com;LOU Dan,E-mail:loudan69@163.com。

摘要:

目的GRIN1基因突变相关发育迟缓患儿的临床特征及基因突变特点进行分析。方法 收集2例发育迟缓患儿的临床资料,对2例患儿及其父母进行靶向基因测序(TGS)。结合文献分析发育迟缓患儿的临床特征和基因突变特点。结果 2例患儿均表现为精神发育迟缓、语言落后、运动落后,无特殊面容,无癫痫,其中1例合并矮小症。TGS结果显示,2例患儿均存在GRIN1基因变异,1例为“错义变异c.1672T>G,p.Phe558Val( 杂合)”,1例为“错义变异c.1852G>A,p.Gly618Ser(杂合)”,2例患儿的父母该位点均为正常基因型。结论 2例发育迟缓患儿的GRIN1基因变异为新发现的变异。TGS有助于明确发育迟缓患儿的分子机制。

关键词: GRIN1基因, 基因突变, 发育迟缓

Abstract:

Objective To analyze clinical and genetic characteristics of GRIN1 mutation-related underdevelopment. Methods Clinical data of 2 developmental retardation children were collected,and targeted gene sequencing(TGS) was performed in the 2 children and their parents. The clinical and genetic characteristics of developmental retardation children were analyzed together with literature review. Results The 2 children showed mental retardation,language backwardness,motor backwardness,no special face or epilepsy. One of them was complicated with dwarfism. The results of TGS showed that there were mutations in GRIN1 gene of the 2 children. One had missense variant c.1672t > G,p.Phe558Val(heterozygous),and the other had missense variant c.1852g > A,p.Gly618Ser(heterozygous). Both of their parents were normal at the same gene loci. Conclusion GRIN1 genetic mutation on the developmental retardation children is newly discovered. TGS is helpful to make clear the molecular mechanism of developmental retardation.

Key words: GRIN1 gene, Genetic mutation, Developmental retardation

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