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Related Experiment Videos

Neurotensin and dopamine interactions.

E B Binder1, B Kinkead, M J Owens

  • 1Laboratory of Neuropsychopharmacology, Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, 1639 Pierce Drive, Atlanta, GA 30322, USA. cnemero@emory.edu

Pharmacological Reviews
|December 6, 2001
PubMed
Summary

Dopamine (DA) and neurotensin (NT) interactions in the brain are crucial for understanding schizophrenia and drug abuse. Recent advances in NT research provide new insights into these central nervous system (CNS) connections.

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Area of Science:

  • Neuroscience
  • Neuropharmacology

Background:

  • Dopamine (DA) and neurotensin (NT) interactions in the central nervous system (CNS) have been studied for over 20 years.
  • Clinical relevance to schizophrenia and drug abuse drives sustained interest in DA-NT signaling.
  • Recent advances include cloning of additional NT receptors and refined techniques for mapping the CNS NT system.

Purpose of the Study:

  • To review the anatomical, electrophysiologic, neurochemical, and behavioral interactions between dopamine and neurotensin systems within the CNS.
  • To focus on NT/DA interactions in midbrain-to-striatum pathways, which represent the majority of DA innervation.
  • To synthesize findings primarily from rat studies due to extensive available literature.

Main Methods:

  • Review of existing literature on neurotensin and dopamine interactions in the CNS.

Related Experiment Videos

  • Focus on anatomical distribution, electrophysiologic effects, neurochemical changes, and behavioral outcomes.
  • Utilizing data primarily from rodent models, particularly rats.

    • Main Results:

    • Detailed anatomical descriptions of CNS NT systems have emerged.
    • Novel NT receptor antagonists facilitate in vivo investigation of endogenous NT.
    • Studies highlight the significance of NT/DA interactions in specific brain regions like the striatum.

    Conclusions:

    • Understanding NT/DA interactions is vital for potential therapeutic strategies targeting CNS disorders.
    • Advances in NT receptor pharmacology and CNS NT system mapping enhance research capabilities.
    • The review synthesizes current knowledge on NT/DA signaling, emphasizing its clinical implications.