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Related Experiment Videos

Mouse models of altered CRH-binding protein expression.

A F Seasholtz1, H L Burrows, I J Karolyi

  • 1Department of Biological Chemistry, University of Michigan, Ann Arbor, MI 48109, USA. aseashol@umich.edu

Peptides
|May 5, 2001
PubMed
Summary

The CRH-binding protein (CRH-BP) modulates stress responses by regulating corticotropin-releasing hormone (CRH) levels. Mouse models reveal CRH-BP

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Area of Science:

  • Neuroendocrinology
  • Stress Physiology
  • Behavioral Neuroscience

Background:

  • Corticotropin-releasing hormone (CRH) mediates stress responses.
  • Urocortin is a CRH-like ligand, adding complexity to the CRH system.
  • CRH and urocortin bind to CRH receptors and CRH-binding protein (CRH-BP).

Purpose of the Study:

  • To investigate the in vivo role of CRH-BP.
  • To examine physiological and behavioral changes in mouse models with altered CRH-BP expression.

Main Methods:

  • Review of three mouse models: CRH-BP overexpression and deficiency.
  • Analysis of physiological changes in the HPA axis and energy balance.
  • Assessment of alterations in anxiogenic behavior.

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Main Results:

  • CRH-BP influences the HPA axis and energy balance.
  • Altered CRH-BP expression leads to changes in anxiogenic behavior.
  • CRH-BP regulates free CRH and related peptide levels in the brain.

Conclusions:

  • CRH-BP plays a significant in vivo modulatory role in the CRH system.
  • CRH-BP impacts stress, energy homeostasis, and anxiety.
  • Mouse models are crucial for understanding CRH-BP's in vivo functions.