A novel DOK7 mutation causing congenital myasthenic syndrome with limb-girdle weakness: case series of three family members

Autor: Mohammed S. Alsallum, Aysha Alshareef, Ahmad R. Abuzinadah, Ahmed K. Bamaga, Ashraf Dallol
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Heliyon, Vol 7, Iss 5, Pp e06869- (2021)
Druh dokumentu: article
ISSN: 2405-8440
DOI: 10.1016/j.heliyon.2021.e06869
Popis: Congenital myasthenia syndrome (CMS) is a group of heterogeneous diseases affecting the neuromuscular endplate. CMS has a considerably different phenotypic presentations, with the onset time ranging from early infancy to late adulthood. Here, we report a case of a CMS due to a new DOK7 mutation in a 28-year-old man and two of his sisters, who have a pure limb-girdle weakness. DOK7 CMS has a varying presentation. Typically, the onset occurs in childhood with ptosis, bulbar symptoms, difficulty walking, weakness, and gait abnormality. This case sheds light on a novel DOK7 gene mutation with a unique presentation of CMS and provides insight into its unique phenotypic presentation.
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