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A gene for hypospadias in a child with presumed tetrasomy 18p
Insights
This study identifies a genetic cause for severe developmental issues in two brothers, including intrauterine growth retardation and central nervous system defects. An autosomal dominant gene is linked to hypospadias, with one brother having an additional isochromosome 18p.
Area of Science:
- Human Genetics
- Developmental Biology
- Clinical Medicine
Background:
- The study examines a familial case presenting with a complex set of congenital anomalies.
- Key features include intrauterine growth retardation, hypospadias, cryptorchism, and central nervous system (CNS) dysfunction.
Abstract:
The proband and his elder brother had intrauterine growth retardation, hypospadias, cryptorchism, a high palate, distally placed axial triradii, and a functional and maturational CNS defect that improved with age and included the inability to suck, severe swallowing difficulties, and frequent vomiting. Their hypospadias is due to an autosomal dominant gene. The proband also had a small extra metacentric chromosome presumed to be an isochromosome 18p.