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Autosomal dominant onychodystrophy and congenital sensorineural deafness
T Kondoh1, A Tsuru, T Matsumoto
1Department of Pediatrics, Nagasaki University School of Medicine, Japan.
Journal of Human Genetics
|February 4, 1999
Summary
Deafness and onychodystrophy (DOD) is a genetic disorder affecting hearing, nails, and teeth. This study confirms its autosomal dominant inheritance pattern in a new family, establishing it as a distinct clinical entity.
Area of Science:
- Genetics
- Medical Genetics
- Ophthalmology
Background:
- Deafness and onychodystrophy (DOD) is a rare genetic disorder.
- It is characterized by congenital hearing loss, nail dystrophy, and dental abnormalities.
Observation:
- A family with three affected members across three generations presented with DOD.
- The affected individuals exhibited congenital hearing impairment, dystrophic nails, and absent teeth.
Findings:
- The observed inheritance pattern in this family is consistent with autosomal dominant inheritance.
- This confirms autosomal dominant DOD (DDOD, MIM *124480) as a recognizable clinical entity.
Implications:
- This finding expands the known prevalence of autosomal dominant DOD.
- Recognizing DDOD as a distinct entity aids in diagnosis and genetic counseling.