Sarcoglycan A mutation in miniature dachshund dogs causes limb-girdle muscular dystrophy 2D.

ABSTRACT:

Background

A cohort of related miniature dachshund dogs with exercise intolerance, stiff gait, dysphagia, myoglobinuria, and markedly elevated serum creatine kinase activities were identified.

Methods

Muscle biopsy histopathology, immunofluorescence microscopy, and western blotting were combined to identify the specific pathologic phenotype of the myopathy, and whole genome SNP array genotype data and whole genome sequencing were combined to determine its genetic basis.

Results

Muscle biopsies were dystrophic. Sarcoglycanopathy, a form of limb-girdle muscular dystrophy, was suspected based on immunostaining and western blotting, where α, β, and γ-sarcoglycan were all absent or reduced. Genetic mapping and whole genome sequencing identified a premature stop codon mutat

SUBMITTER: Mickelson JR 

PROVIDER: S-EPMC7789357 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature