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Evaluation of SORD mutations as a novel cause of Charcot-Marie-Tooth disease.


ABSTRACT: Biallelic mutations in the sorbitol dehydrogenase (SORD) encoding gene were recently identified as a common genetic cause in autosomal-recessive CMT patients. Here, we investigated the clinical, genetic, and electrophysiological characteristics of three CMT patients with biallelic SORD mutations from a Chinese cohort. Two patients harbored c.757delG (p.A253Qfs*27) homozygous mutations, and one patient carried both c.757delG (p.A253Qfs*27) and c.625C>T (p.R209X) compound heterozygous mutations. Interestingly, the two patients homozygous for the c.757delG mutation exhibited positive responses for pinprick test. In conclusion, we confirmed SORD mutations as causative for CMT and further expanded the mutational and phenotypic spectrum of SORD-related CMT.

SUBMITTER: Yuan RY 

PROVIDER: S-EPMC7818235 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature

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Evaluation of SORD mutations as a novel cause of Charcot-Marie-Tooth disease.

Yuan Ru-Ying RY   Ye Zi-Ling ZL   Zhang Xiao-Rong XR   Xu Liu-Qing LQ   He Jin J  

Annals of clinical and translational neurology 20201212 1


Biallelic mutations in the sorbitol dehydrogenase (SORD) encoding gene were recently identified as a common genetic cause in autosomal-recessive CMT patients. Here, we investigated the clinical, genetic, and electrophysiological characteristics of three CMT patients with biallelic SORD mutations from a Chinese cohort. Two patients harbored c.757delG (p.A253Qfs*27) homozygous mutations, and one patient carried both c.757delG (p.A253Qfs*27) and c.625C>T (p.R209X) compound heterozygous mutations. I  ...[more]

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