Data Management And Sharing System of China National Clinical Research Center for Neurological Diseases
A novel homozygous NDRG1 mutation in a Chinese patient with Charcot-Marie-Tooth disease 4D.
First author：bin chen
Corresponding author：zaiqiang zhang
essential_information
2018-04-30
Published articles
Journal：Journal of Clinical Neuroscience
Publication type: Original Contributions
IF(IF): 1.961
PMID: 29724652 Link To Pubmed Full text Download
Background And Purpose
Charcot-Marie-Tooth disease 4D (CMT4D) is characterized by severe peripheral neuropathy and deafness. It is caused by mutations in the N-myc downstream-regulated gene 1 (NDRG1).
Method
We report a Chinese man with a homozygous mutation c.675C > T of NDRG1 that resulted in Q185X, representing the third known CMT4D patient of non-European ancestry.
Conclusion
Q185X of NDRG1 is a novel mutation with CMT4D, which are demonstrated in Asian population. Q185X of the NDRG1 expands the clinical and mutational spectrum of CMT4D.
Main results
The patient presented with a 15-year-long history of progressive limb weakness accompanied by hearing loss and dysarthria. There was abnormal differentiation and increased interpeak latencies in brainstem auditory evoked potentials. Compound muscle action potentials (CMAP) of the peripheral nerves were not elicited in distal segments, while prolonged distal latencies and decreased CMAP were present in proximal nerves. A mild enlargement of the lateral ventricles showed in brain magnetic resonance imaging studies