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Updated: Aug 5, 2026
10:23
Urinary Tract Infection in a Small Animal Model: Transurethral Catheterization of Male and Female Mice
Published on: December 1, 2017
Summary
Genetic family studies reveal inheritance patterns for isolated renal malformations like renal agenesis and hypospadias. Data suggests multifactorial inheritance or dominant models with reduced penetrance for these congenital conditions.
Area of Science:
- Medical Genetics
- Developmental Biology
- Urology
Background:
- Genetic factors in congenital kidney and urinary tract malformations are complex.
- Previous studies have focused on specific conditions, but a comprehensive genetic overview of isolated malformations is needed.
Purpose of the Study:
- To review available family studies on isolated renal malformations.
- To discuss potential genetic inheritance models for these conditions.
Main Methods:
- Review of systematic family studies on renal agenesis, ureter duplication, vesico-ureteral reflux, bladder exstrophy, and hypospadias.
- Analysis of reported birth frequencies and familial recurrence risks.
Main Results:
- Renal agenesis: 1.2/10,000 birth frequency, 3% sib recurrence.
- Ureter duplication: 1% birth frequency, 12% sib/parent recurrence.
- Vesico-ureteral reflux: 1% childhood prevalence, 10% sib recurrence.
- Bladder exstrophy: 1/20,000 birth frequency, ~1% sib recurrence.
- Hypospadias: 1/300 male birth frequency, ~10% brother recurrence.
Conclusions:
- Inheritance patterns for isolated renal malformations vary.
- Multifactorial threshold model or dominant inheritance with reduced penetrance are plausible genetic models.
- Further family studies are recommended for isolated malformations.
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