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[Obesity studies in candidate genes].

María del Carmen Ochoa1, Amelia Martí, J Alfredo Martínez

  • 1Departamento de Fisiología y Nutrición, Universidad de Navarra, Pamplona, Spain.

Medicina Clinica
|May 1, 2004
PubMed
Summary

Genetic variants in numerous genes influence body weight and obesity. Obesity risk arises from gene variations and environmental factors like diet and lifestyle, necessitating further research into their interactions.

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Area of Science:

  • Genetics and Obesity Research
  • Molecular Biology and Metabolism

Context:

  • Over 430 chromosomal regions contain gene variants linked to body weight regulation and obesity.
  • Specific gene polymorphisms in energy expenditure (uncoupling proteins), adipogenesis, insulin resistance (hormone-sensitive lipase, PPAR gamma, beta adrenergic receptors, TNF-alpha), and food intake (ghrelin) are associated with obesity phenotypes.

Purpose:

  • To explore the genetic underpinnings of obesity development.
  • To highlight the interplay between genetic predisposition and environmental influences on obesity risk.

Summary:

  • Obesity risk is a multifactorial trait influenced by genetic variations in key regulatory genes and environmental exposures.
  • Gene variants affecting energy balance, fat cell development, insulin sensitivity, and appetite control are implicated in obesity.
  • Understanding the combined effects of genetic factors and environmental exposures (diet, lifestyle) is crucial for effective obesity management.

Impact:

  • Identifies specific genes and pathways involved in obesity, providing targets for future research and potential interventions.
  • Emphasizes the need for studies examining gene-environment interactions to fully understand obesity etiology.
  • Informs the development of personalized approaches to obesity prevention and treatment based on genetic profiles and environmental factors.

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