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Polydactyly and genes

Shubha R Phadke1, V H Sankar

  • 1Department of Medical Genetics, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India. shubha@sgpgi.ac.in

Indian Journal of Pediatrics
|February 24, 2010
PubMed

Insights

This review explores the genetics of polydactyly, a common congenital malformation. Understanding gene defects and their link to phenotypes is crucial for pediatricians managing these conditions.

Area of Science:

  • Developmental Biology
  • Medical Genetics

Background:

  • Congenital malformations and malformation syndromes are of significant interest to pediatricians.
  • Advances in developmental genetics provide insights into malformation etiologies.
  • Polydactyly is a frequent congenital malformation with known genetic underpinnings.

Purpose of the Study:

  • To review the genetics of hand development and polydactyly syndromes.
  • To illustrate how the genetics of malformations are studied using polydactyly as a model.
  • To discuss known genetic defects and genotype-phenotype correlations in polydactyly syndromes.

Main Methods:

  • Literature review of genetic and chromosomal defects associated with congenital malformations.
  • Focus on genes involved in hand development and polydactyly.
  • Analysis of genotype-phenotype correlations in polydactyly syndromes.

Main Results:

  • Genetic and chromosomal abnormalities are frequently linked to congenital malformations.
  • Numerous genetic defects underlying various polydactyly syndromes have been identified.
  • The relationship between specific genetic mutations and observable phenotypes in polydactyly is increasingly understood.

Conclusions:

  • Polydactyly serves as a valuable prototype for understanding the genetic basis of malformations.
  • Knowledge of genetic defects is essential for diagnosing and managing polydactyly syndromes.
  • Further research into genotype-phenotype correlations will improve clinical understanding and treatment.

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