Key result
Biallelic POMT1 mutations leading to premature protein termination caused severe Walker-Warburg syndrome, whereas the presence of at least one missense mutation was associated with milder limb girdle muscular dystrophy.
Why the study?
The phenotypic severity of POMT1-related dystroglycanopathies depends on residual enzyme activity, and a genotype-phenotype correlation can be assumed across a spectrum ranging from Walker-Warburg syndrome to limb girdle muscular dystrophy.
Population
35 patients with biallelic POMT1 mutations from 27 independent families
Design
Cohort study
Authors
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May guide prognostic counseling in POMT1 dystroglycanopathies; supports genotype-phenotype correlations but requires validation in larger cohorts.
Cohort (n=35)
Yes
Geis et al. (2019) conducted a cohort in POMT1-related disorders (n=35). POMT1 mutations was evaluated on Clinical manifestation and genotype-phenotype correlation. Biallelic POMT1 mutations leading to premature protein termination caused severe Walker-Warburg syndrome, whereas the presence of at least one missense mutation was associated with milder limb girdle muscular dystrophy.
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