Key result
In Chinese patients with dystrophinopathies, nonsense mutations with a splicing classification grade of 0 were strongly associated with severe Duchenne or intermediate phenotypes (OR 12.000).
Why the study?
To present the characteristics of small mutations in Chinese patients with dystrophinopathies and explore genotype-phenotype correlations.
Population
115 Chinese patients with dystrophinopathies and small mutations
Design
Cohort study
Authors
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May aid phenotype prediction in Chinese dystrophinopathy patients; hypothesis-generating for splicing grade in exon-skipping decisions.
Observational (n=115)
No
Odds Ratio: 12 (95% CI 2.332–61.758)
p-value: p=<0.001
This study details the spectrum of small DMD mutations in Chinese patients, highlighting that nonsense mutations are most common and their splicing grades correlate with clinical phenotypes, which may guide exon-skipping therapies.
Wang et al. (2019) conducted an observational in Dystrophinopathies (n=115). Nonsense mutations with splicing classification grade 0 vs. Nonsense mutations with splicing classification grade 1 was evaluated on Presentation of Duchenne or intermediate muscular dystrophy (DMD/IMD) phenotype (OR 12.000, 95% CI 2.332-61.758, p=<0.001). In Chinese patients with dystrophinopathies, nonsense mutations with a splicing classification grade of 0 were strongly associated with severe Duchenne or intermediate phenotypes (OR 12.000).
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