Hearing loss is the most common sensory nervous system defect in humans. Approximately half of hearing loss cases have a genetic etiology. At present, more than 300 genes and 1000 mutations have been identified that cause hereditary hearing loss (HHL). However, there are still a large number of unknown genes related to hearing loss....
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Discussion
Signed responses from readers of the wire.
No immediate clinical practice change is warranted; this finding expands the known variant spectrum of ACTG1-related nonsyndromic hearing loss and may be useful for genetic counseling panels targeting Chinese Han populations if confirmed in larger cohorts.
Expanding the catalog of pathogenic variants in hearing-loss genes like ACTG1 is essential for improving the sensitivity of genetic diagnostic panels used globally.
- 01Novel ACTG1 gene mutation identified as probable cause of nonsyndromic (isolated) hearing loss.
- 02Study cohort drawn from the Chinese Han population.
- 03Published in Neural Plasticity; genetic variant requires independent replication.
- 04ACTG1 encodes gamma-actin, a structural protein critical to inner ear hair cell function.
- 05Finding may enhance genetic counseling accuracy for affected families.
A novel ACTG1 mutation is the probable genetic cause of nonsyndromic hearing loss in the studied Chinese Han cohort.
studypartially supported- PMID
- 42657483
- DOI
- 10.1155/np/4050645.
- Journal
- Neural Plasticity
- Publication type
- research_article
- Evidence level
- 4
- Population
- Chinese Han population individuals with nonsyndromic hearing loss
- Intervention
- Genetic sequencing and variant analysis of ACTG1 gene
Primary outcomes
Identification of novel ACTG1 pathogenic mutation; Association with nonsyndromic hearing loss phenotype