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Related Experiment Videos

Directed drug distribution: adding controlled brain activity to a drug.

M S Myslobodsky1, M Weiner

  • 1NIMH/NIH, Neuropsychiatry Branch, St. Elizabeths Hospital, Washington, DC.20032.

The International Journal of Neuroscience
|September 1, 1988
PubMed
Summary

Environmental factors significantly impact drug responses by altering brain pharmacokinetics. Manipulating these environmental influences offers a novel approach to enhance drug efficacy and reduce side effects.

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Area of Science:

  • Neuroscience
  • Pharmacology
  • Environmental Health

Background:

  • Environmental factors are known to influence organismal drug responses.
  • Mechanisms underlying these influences are complex and poorly understood.
  • The impact of environmental factors on local drug pharmacokinetics is often overlooked.

Purpose of the Study:

  • To explore how environmental factors affect regional brain pharmacokinetics.
  • To identify opportunities for enhancing centrally acting drug efficacy.
  • To investigate the potential of psychotherapy in modulating environmental influences on drug disposition.

Main Methods:

  • Review of existing literature on environmental influences, brain pharmacokinetics, and drug action.
  • Analysis of factors affecting drug localization in the brain, including blood flow, neurohumor concentrations, and receptor density.

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  • Consideration of asymmetric brain representation and laterality-dependent drug effects.

    • Main Results:

    • Environmental factors can alter vascular blood flow, neurohumor concentrations, and receptor density in specific brain regions.
    • These alterations lead to asymmetric drug distribution and laterality-dependent effects.
    • Targeting regional brain pharmacokinetics offers a way to improve drug efficacy without increasing systemic toxicity.

    Conclusions:

    • Environmental influences on regional brain pharmacokinetics are a critical, yet underutilized, therapeutic target.
    • Psychotherapy may serve as a tool to manipulate environmental factors, optimizing drug disposition.
    • Combined pharmacotherapy and psychotherapy could yield superior therapeutic outcomes.