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Related Experiment Videos

Gallstones: genetics versus environment.

Attila Nakeeb1, Anthony G Comuzzie, Lisa Martin

  • 1Department of Surgery, Medical College of Wisconsin, Milwaukee 53226, USA. anakeeb@mcw.edu

Annals of Surgery
|May 30, 2002
PubMed
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Genetics play a significant role in symptomatic gallstone disease, accounting for at least 30% of cases. Family history and specific risk factors like female gender and obesity contribute to gallstone formation.

Area of Science:

  • Gastroenterology and Genetics

Background:

  • Gallstones are a common polygenic disorder affecting millions annually, with known risk factors including age, gender, obesity, and diabetes.
  • A family history of gallstones suggests a genetic predisposition, but the precise genetic contribution to gallstone pathogenesis remains undetermined.

Purpose of the Study:

  • To investigate the genetic component in the development of symptomatic gallstones.
  • To quantify the heritability of symptomatic gallstone disease.

Main Methods:

  • An association study surveyed 904 adults using a gallbladder disease questionnaire to identify risk factors.
  • A family study analyzed 1,038 individuals from 358 families using variance decomposition to estimate additive genetic heritability.

Main Results:

Related Experiment Videos

  • Significant risk factors for symptomatic gallstones included female gender, obesity, age over 50, and a positive family history.
  • The additive genetic heritability for symptomatic gallstones was estimated at 29%, with age and gender explaining 9.3% of phenotypic variation.

    • Conclusions:

    • Genetic factors contribute significantly to symptomatic gallstone disease, accounting for at least 30% of cases.
    • The actual heritability may be higher, as symptomatic disease likely underestimates the full prevalence and genetic influence.