Open AccessGenotype–phenotype characteristics of Vietnamese patients diagnosed with Charcot–Marie–Tooth disease
Author(s) -
NguyenLe TrungHieu,
Do Minh Duc,
Le Linh Hoang Gia,
Nhat Quynh Nhu Nguyen,
Hoang Nghia Trong Tien,
Van Le Tuan,
Mai Thao Phuong
Publication year - 2022
Publication title -
brain and behavior
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.915
H-Index - 41
ISSN - 2162-3279
DOI - 10.1002/brb3.2744
Subject(s) - vietnamese , multiplex ligation dependent probe amplification , disease , mutation , gene duplication , genetics , phenotype , gene , genotype phenotype distinction , genotype , biology , medicine , bioinformatics , pathology , philosophy , linguistics , exon
Background Charcot–Marie‐Tooth (CMT) disease is one of the most common hereditary neuropathies. Identifying causative mutations in CMT is essential as it provides important information for genetic diagnosis and counseling. However, genetic information of Vietnamese patients diagnosed with CMT is currently not available. Methods In this study, we described the clinical profile and determined the mutation spectrum of CMT in a cohort of Vietnamese patients with CMT by using a combination of multiplex ligation‐dependent probe amplification and next‐generation sequencing targeting 11 genes PMP22, MPZ, EGR2, NEFL, MFN2, GDAP1, GARS, MTMR2, GJB1, RAB7A, LITAF . Results In 31 CMT cases, the mutation detection rate was 42% and the most common genetic aberration was PMP22 duplication. The pedigree analysis showed two de novo mutations c.64C > A (p.P22T) and c.281delG (p.G94Afs*17) in the NEFL and PMP22 genes, respectively. Conclusion The results of this study once again emphasize the important role of molecular diagnosis and provide preliminary genetic data on Vietnamese patients with CMT.