Cited by 76Cannabis and Cannabinoid ResearchSchizophrenia research and treatmentPsychedelics and Drug Studies

Cannabidiol effects in the prepulse inhibition disruption induced by amphetamine

Pedrazzi, J. F. C., Issy, A. C., Gomes, F. V., Guimarães, F. S., Del-Bel, E. A.·2015·Psychopharmacology

Abstract

Rationale The information processing appears to be deficient in schizophrenia. Prepulse inhibition (PPI), which measures the inhibition of a motor response by a weak sensory event, is considered particularly useful to understand the biology of information processing in schizophrenia patients. Drugs that facilitate dopaminergic neurotransmission such as amphetamine induce PPI disruption in human and rodents. Clinical and neurobiological findings suggest that the endocannabinoid system and cannabinoids may be implicated in the pathophysiology and treatment of schizophrenia. Cannabidiol (CBD), a non-psychotomimetic constituent of the Cannabis sativa plant, has also been reported to have potential as an antipsychotic.Objective Our aim was to investigate if CBD pretreatment was able to prevent PPI disruption induced by amphetamine. Since one possible mechanism of CBD action is the facilitation of endocannabinoid-mediated neurotransmission through anandamide, we tested the effects of an anandamide hydrolysis inhibitor (URB597) in the amphetamine-induced PPI disruption.Methods Male Swiss mice were treated with CBD systemic or intra-accumbens, or URB597 (systemic) prior to amphetamine and were exposed to PPI test.Results Amphetamine (10 mg/kg) disrupted PPI while CBD (15-60 mg/kg) or URB597 (0.1-1 mg/kg) administered alone had no effect. Pretreatment with CBD attenuated the amphetamine-disruptive effects on PPI test after systemic or intra-accumbens administration. Similar effects were also found with the inhibitor of anandamide hydrolysis.Conclusion These results corroborate findings indicating that CBD induces antipsychotic-like effects. In addition, they pointed to the nucleus accumbens as a possible site of these effects. The increase of anandamide availability may be enrolled in the CBD effects.

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Crossref · 10.1007/s00213-015-3945-7

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Authors
Pedrazzi, J. F. C., Issy, A. C., Gomes, F. V., Guimarães, F. S., & Del-Bel, E. A.
Affiliations
Universidade de São Paulo (BR)
Corresponding author
Del-Bel, E. A.
Venue
Psychopharmacology
Published
2015-05-06
Volume
232
Issue
16
Pages
3057-3065
ISSN
  • 0033-3158 (ISSN-L)
  • 1432-2072
OpenAlex
W802881471
Cited by
76
References
65
Citations by year
2026: 2 · 2025: 3 · 2024: 7 · 2023: 4 · 2022: 7 · 2021: 10 · 2020: 7 · 2019: 9 · 2018: 9 · 2017: 10 · 2016: 7
FWCI
6.24
Type
journal article
Language
en
Open access
closed
Locations
  • Psychopharmacology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Universidade de São Paulo
Topics
  • Health Sciences › Medicine › Pharmacology › Cannabis and Cannabinoid Research
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Social Sciences › Psychology › Clinical Psychology › Psychedelics and Drug Studies
Keywords
cannabidiol, prepulse inhibition, amphetamine, schizophrenia, endocannabinoid system, anandamide, URB597, nucleus accumbens, antipsychotic effects, dopamine signaling, information processing deficits
MeSH terms
Amphetamine, Animals, Benzamides, Cannabidiol, Carbamates, Inhibition, Psychological, Male, Nucleus Accumbens, Reflex, Startle, Mice, Prepulse Inhibition

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