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Cannabinoids as hippocampal network administrators.

Carl R Lupica1, Yuhan Hu2, Orrin Devinsky3

  • 1U.S. Department of Health and Human Services, National Institutes of Health, National Institute on Drug Abuse Intramural Research Program, Electrophysiology Research Section, Baltimore, MD, USA.

Neuropharmacology
|April 11, 2017
PubMed
Summary
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This review explores the hippocampal cannabinoid system, detailing its role in cognition, behavior, and epilepsy. It examines how cannabinoids influence brain activity and contribute to disorders like schizophrenia.

Area of Science:

  • Neurobiology
  • Neuroscience
  • Pharmacology

Background:

  • The hippocampus is crucial for memory and learning.
  • The endogenous cannabinoid system processes endocannabinoids and cannabinoid receptors.
  • Cannabinoids influence hippocampal function in normal and pathological states.

Purpose of the Study:

  • To provide a historical overview of hippocampal cannabinoid system research.
  • To understand the hippocampus's role in cognition, behavior, and epilepsy.
  • To examine cannabinoid effects on dysfunctional behaviors and psychotic disorders.

Main Methods:

  • Literature review of pioneering studies.
  • Analysis of research on hippocampal circuits and synaptic plasticity.
  • Examination of cannabinoid-sensitive cellular mechanisms.
Keywords:
Cannabinoid CB(2) receptorsCholecystokininGABAGamma oscillationNeuroregulinParvalbumin

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Main Results:

  • The hippocampus is central to processing cannabinoid effects.
  • Cannabinoids, including Δ9-THC and cannabidiol, impact hippocampal function.
  • Disordered hippocampal activity is linked to cannabinoid exposure and psychiatric conditions.

Conclusions:

  • The hippocampal cannabinoid system is implicated in cognition, behavior, and neurological disorders.
  • Cannabinoid actions on hippocampal networks may contribute to schizophrenia and epilepsy.
  • Further research is needed to elucidate cannabinoid roles in brain function and dysfunction.