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Knockout mouse models of Hirschsprung's disease
1National Children's Research Centre, Our Lady's Children's Hospital, Crumlin, Dublin, Ireland.
Pediatric Surgery International
|July 4, 2015
Summary
Knockout mouse models are crucial for understanding Hirschsprung
Area of Science:
- Developmental biology
- Genetics
- Gastroenterology
Background:
- Hirschsprung's disease (HSCR) is a congenital disorder affecting the enteric nervous system due to failed neural crest cell migration.
- Rodent models of aganglionosis are vital for elucidating the genetic underpinnings of HSCR.
- Mutations in genes regulating neural crest cell development are implicated in HSCR.
Purpose of the Study:
- To review existing knockout mouse models of HSCR.
- To enhance understanding of the molecular basis of HSCR through these models.
Main Methods:
- Literature review using keywords: "Hirschsprung's disease", "aganglionosis", "megacolon", "knockout mice model".
- Screening of publications and reference lists for relevant aganglionosis mouse models.
Main Results:
- Identified 16 gene knockout mouse models relevant to human HSCR.
- Observed diverse phenotypes in knockout models, including small bowel dilatation, muscular hypertrophy, and total intestinal aganglionosis.
Conclusions:
- Aganglionosis mouse models have significantly aided in discovering HSCR-causative genes.
- Future research using these models will help identify unknown susceptibility genes for HSCR.
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