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Related Experiment Videos

[Beta 3 adrenergic receptor polymorphism and obesity]

T Yoshida1, T Umekawa

  • 1First Department of Internal Medicine, Kyoto Prefectural University of Medicine.

Nihon Rinsho. Japanese Journal of Clinical Medicine
|August 14, 1998
PubMed
Summary

A genetic variant in the beta 3-adrenoceptor (Trp64Arg) is linked to weight gain and metabolic issues. This study explores its functional impact and prevalence in different populations.

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Area of Science:

  • Endocrinology and Metabolism
  • Pharmacogenetics
  • Adrenergic Receptor Research

Context:

  • The beta 3-adrenoceptor regulates lipolysis and thermogenesis in brown adipose tissue.
  • A common human variant, Trp64Arg, in the beta 3-adrenoceptor gene has been identified.
  • This variant is associated with increased adiposity and metabolic dysfunction.

Purpose:

  • To investigate the functional mechanism of the Trp64Arg beta 3-adrenoceptor variant.
  • To review the clinical correlations and population frequencies of this genetic variation.
  • To provide an update on the development of beta 3-adrenoceptor agonists.

Summary:

  • The Trp64Arg substitution in the beta 3-adrenoceptor is associated with weight gain, insulin resistance, and worsened diabetes.
  • Higher frequencies of this mutation are observed in Pima Indians and Japanese populations.
  • Functional studies using HEK293 cells expressing wild-type and variant receptors elucidate the mechanism of Trp64Arg.

Impact:

  • Understanding the Trp64Arg variant's role in metabolic diseases can inform personalized medicine approaches.
  • This research highlights the importance of beta 3-adrenoceptor function in energy homeostasis.
  • Findings contribute to the ongoing development of targeted therapies for obesity and diabetes.

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