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Related Experiment Videos

The human obesity gene map: the 2000 update.

L Pérusse1, Y C Chagnon, S J Weisnagel

  • 1Department of Social and Preventive Medicine, Faculty of Medicine, Laval University, Sainte-Foy, Québec, Canada. Louis.Perusse@kin.msp.ulaval.ca

Obesity Research
|April 24, 2001
PubMed
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The human obesity gene map has been updated, revealing over 250 genes, markers, and regions linked to obesity. This comprehensive update includes single-gene mutations, Mendelian disorders, and quantitative trait loci, highlighting genetic factors in obesity.

Area of Science:

  • Genetics
  • Obesity Research
  • Human Genomics

Background:

  • Obesity is a complex multifactorial condition with a significant genetic component.
  • Understanding the genetic basis of obesity is crucial for developing effective interventions.
  • Previous updates have cataloged genetic factors contributing to obesity.

Purpose of the Study:

  • To provide the seventh update of the human obesity gene map.
  • To incorporate published findings on obesity genetics up to October 2000.
  • To consolidate evidence from various genetic study designs.

Main Methods:

  • Review of published literature on human and rodent obesity genetics.
  • Inclusion of data from single-gene mutations and Mendelian disorders.

Related Experiment Videos

  • Analysis of quantitative trait loci (QTLs) from genome-wide scans and animal models.
  • Examination of association and linkage studies with candidate genes and markers.

    • Main Results:

    • 47 human obesity cases from single-gene mutations in 6 genes identified.
    • 24 Mendelian disorders with obesity as a feature have been mapped.
    • 115 QTLs reported from animal models.
    • 130 studies reported positive associations with 48 candidate genes.
    • 59 loci linked to obesity indicators in genomic scans.
    • 54 new loci added in the past year, totaling over 250 associated loci.
    • Associated loci found on all chromosomes except Y.

    Conclusions:

    • The human obesity gene map is continually expanding with new genetic loci.
    • A wide array of genetic factors contribute to obesity phenotypes.
    • Ongoing research continues to identify and map genes and regions associated with obesity.