Genetic diagnosis of two dopa-responsive dystonia families by exome sequencing.

Dopa-responsive dystonia, a rare disorder typically presenting in early childhood with lower limb dystonia and gait abnormality, responds well to levodopa. However, it is often misdiagnosed with the wide spectrum of phenotypes. By exome sequencing, we make a rapid genetic diagnosis for two atypical...

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Main Authors: Zhan-fang Sun, Yu-han Zhang, Ji-feng Guo, Qi-ying Sun, Jun-pu Mei, Han-lin Zhou, Li-ping Guan, Jin-yong Tian, Zheng-mao Hu, Jia-da Li, Kun Xia, Xin-xiang Yan, Bei-sha Tang
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4152247?pdf=render
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author Zhan-fang Sun
Yu-han Zhang
Ji-feng Guo
Qi-ying Sun
Jun-pu Mei
Han-lin Zhou
Li-ping Guan
Jin-yong Tian
Zheng-mao Hu
Jia-da Li
Kun Xia
Xin-xiang Yan
Bei-sha Tang
author_facet Zhan-fang Sun
Yu-han Zhang
Ji-feng Guo
Qi-ying Sun
Jun-pu Mei
Han-lin Zhou
Li-ping Guan
Jin-yong Tian
Zheng-mao Hu
Jia-da Li
Kun Xia
Xin-xiang Yan
Bei-sha Tang
author_sort Zhan-fang Sun
collection DOAJ
description Dopa-responsive dystonia, a rare disorder typically presenting in early childhood with lower limb dystonia and gait abnormality, responds well to levodopa. However, it is often misdiagnosed with the wide spectrum of phenotypes. By exome sequencing, we make a rapid genetic diagnosis for two atypical dopa-responsive dystonia pedigrees. One pedigree, presented with prominent parkinsonism, was misdiagnosed as Parkinson's disease until a known mutation in GCH1 (GTP cyclohydrolase 1) gene (NM_000161.2: c.631_632delAT, p.Met211ValfsX38) was found. The other pedigree was detected with a new compound heterozygous mutation in TH (tyrosine hydroxylase) gene [(NM_000360.3: c.911C>T, p.Ala304Val) and (NM_000360.3: c.1358G>A, p.Arg453His)], whose proband, a pregnant woman, required a rapid and less-biased genetic diagnosis. In conclusion, we demonstrated that exome sequencing could provide a precise and rapid genetic testing in the diagnosis of Mendelian diseases, especially for diseases with wide phenotypes.
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spelling doaj.art-5a3845f214574d7989c12c8fb6c74c8f2022-12-22T01:15:30ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0199e10638810.1371/journal.pone.0106388Genetic diagnosis of two dopa-responsive dystonia families by exome sequencing.Zhan-fang SunYu-han ZhangJi-feng GuoQi-ying SunJun-pu MeiHan-lin ZhouLi-ping GuanJin-yong TianZheng-mao HuJia-da LiKun XiaXin-xiang YanBei-sha TangDopa-responsive dystonia, a rare disorder typically presenting in early childhood with lower limb dystonia and gait abnormality, responds well to levodopa. However, it is often misdiagnosed with the wide spectrum of phenotypes. By exome sequencing, we make a rapid genetic diagnosis for two atypical dopa-responsive dystonia pedigrees. One pedigree, presented with prominent parkinsonism, was misdiagnosed as Parkinson's disease until a known mutation in GCH1 (GTP cyclohydrolase 1) gene (NM_000161.2: c.631_632delAT, p.Met211ValfsX38) was found. The other pedigree was detected with a new compound heterozygous mutation in TH (tyrosine hydroxylase) gene [(NM_000360.3: c.911C>T, p.Ala304Val) and (NM_000360.3: c.1358G>A, p.Arg453His)], whose proband, a pregnant woman, required a rapid and less-biased genetic diagnosis. In conclusion, we demonstrated that exome sequencing could provide a precise and rapid genetic testing in the diagnosis of Mendelian diseases, especially for diseases with wide phenotypes.http://europepmc.org/articles/PMC4152247?pdf=render
spellingShingle Zhan-fang Sun
Yu-han Zhang
Ji-feng Guo
Qi-ying Sun
Jun-pu Mei
Han-lin Zhou
Li-ping Guan
Jin-yong Tian
Zheng-mao Hu
Jia-da Li
Kun Xia
Xin-xiang Yan
Bei-sha Tang
Genetic diagnosis of two dopa-responsive dystonia families by exome sequencing.
PLoS ONE
title Genetic diagnosis of two dopa-responsive dystonia families by exome sequencing.
title_full Genetic diagnosis of two dopa-responsive dystonia families by exome sequencing.
title_fullStr Genetic diagnosis of two dopa-responsive dystonia families by exome sequencing.
title_full_unstemmed Genetic diagnosis of two dopa-responsive dystonia families by exome sequencing.
title_short Genetic diagnosis of two dopa-responsive dystonia families by exome sequencing.
title_sort genetic diagnosis of two dopa responsive dystonia families by exome sequencing
url http://europepmc.org/articles/PMC4152247?pdf=render
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