About Bioline  All Journals  Testimonials  Membership  News

Iranian Journal of Pediatrics
Tehran University of Medical Sciences Press
ISSN: 1018-4406
EISSN: 1018-4406
Vol. 27, No. 2, 2017, pp. 1-3
Bioline Code: pe17026
Full paper language: English
Document type: Case Report
Document available free of charge

Iranian Journal of Pediatrics, Vol. 27, No. 2, 2017, pp. 1-3

 en Novel Gene LAMA2 Mutation and Exonic Deletion Underline Merosin-Deficient Congenital Muscular Dystrophy 1A in a Chinese Family
Liang, Lili; Zhang, Qigang & Gu, Xuefan


Introduction: Merosin Deficient Congenital muscular dystrophy type 1A (MDC1A) is a rare kind of congenital muscular dystrophy.
Case Presentation: Here we report a Chinese case with a genetic diagnosis exposing a novel point mutation and a novel exonic deletion in the causative gene LAMA2. We collected the medical history and did physical examination for the case. A set of auxiliary examination was performed for the diagnosis. The patient exhibited notable proximal weakness and was severely hypotonic. The CK increased slightly. The brain MRI exposed leukodystrophy. The electromyogram suggested myogenic muscle damage. Merosin was completely absent in the visual field of muscle biopsy. Gene testing exposed that the proband was a compound heterozygote with a heterozygous nonsense mutation c.817A > T in exon 5 and a deletion involved exon 4 of LAMA2 gene. The point mutation derived from the mother while the exonic deletion derived from the father. The asymptomatic sister carried the point mutation c.817A > T.
Conclusions: This case expands the mutation spectrum of MDC1A and highlights that the diagnosis of MDC1A should be suspected in the presence of an elevated CK and abnormal white matter.

Congenital Muscular Dystrophy; Leukodystrophy; Mutation Analysis

© Copyright 2017 - Growth & Development Research Center
Alternative site location:

Home Faq Resources Email Bioline
© Bioline International, 1989 - 2024, Site last up-dated on 01-Sep-2022.
Site created and maintained by the Reference Center on Environmental Information, CRIA, Brazil
System hosted by the Google Cloud Platform, GCP, Brazil