Evidence map›Paper›PMID 38631564›Full record

ArticleNeuropharmacology2024

β-caryophyllene inhibits heroin self-administration, but does not alter opioid-induced antinociception in rodents.

Ewa Galaj, Guo-Hua Bi, Zheng-Xiong Xi

Open access · greenAbstract read
In one paragraph

Article in Neuropharmacology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.3field-weighted citation impact, top 22% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 5 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Cannabinoid CB1 receptor and mu-opioid receptor interaction: new insights from conditional knockout mice.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Article
  5. Review
  6. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Ewa GalajDepartment of Psychological and Brain Sciences, Colgate University, Hamilton, NY, USA. Electronic address: egalaj@colgate.edu.
Guo-Hua BiAddiction Biology Unit, Molecular Targets and Medications Discovery Branch, National Institute on Drug Abuse, Intramural Research Program, Baltimore, MD, USA.
Zheng-Xiong XiAddiction Biology Unit, Molecular Targets and Medications Discovery Branch, National Institute on Drug Abuse, Intramural Research Program, Baltimore, MD, USA.
National Institute on Drug Abuse · USColgate University · US

Funding

Cannabinoid CB1 and CB2 receptors and drug abuseZIADA000633 · NIDA · NATIONAL INSTITUTE ON DRUG ABUSE · PI XI, ZHENG-XIONG · 2023 to 2025
$3.1M
The role of the nigrothalamic pathway in opioid-driven behaviorsR15DA057501 · NIDA · COLGATE UNIVERSITY · PI GALAJ, EWA JOANNA · 2023 to 2023
$405k
NIDA NIH HHS R15 DA057501
6 · The paper itself

Abstract

A growing body of research indicates that β-caryophyllene (BCP), a constituent present in a large number of plants, possesses significant therapeutic properties against CNS disorders, including alcohol and psychostimulant use disorders. However, it is unknown whether BCP has similar therapeutic potential for opioid use disorders. In this study, we found that systemic administration of BCP dose-dependently reduced heroin self-administration in rats under an FR2 schedule of reinforcement and partially blocked heroin-enhanced brain stimulation reward in DAT-cre mice, maintained by optical stimulation of midbrain dopamine neurons at high frequencies. Acute administration of BCP failed to block heroin conditioned place preference (CPP) in male mice, but attenuated heroin-induced CPP in females. Furthermore, repeated dosing with BCP for 5 days facilitated the extinction of CPP in female but not male mice. In the hot plate assay, pretreatment with the same doses of BCP failed to enhance or prolong opioid antinociception. Lastly, in a substitution test, BCP replacement for heroin failed to maintain intravenous BCP self-administration, suggesting that BCP itself has no reinforcing properties. These findings suggest that BCP may have certain therapeutic effects against opioid use disorders with fewer unwanted side-effects by itself.

Indexed as

HeroinPolycyclic SesquiterpenesSelf AdministrationAnalgesics, OpioidAnimalsConditioning, OperantDose-Response Relationship, DrugExtinction, PsychologicalFemaleMaleMiceMice, Inbred C57BLMice, TransgenicNociceptionRatsRats, Sprague-DawleyAnalgesics, OpioidcaryophylleneHeroinPolycyclic SesquiterpenesSesquiterpenesAnalgesiaBCP, β-caryophylleneConditioned place preferenceDrug self-administrationEndocannabinoidHeroinIntracranial self-stimulation

Identifiers

PMID38631564
PMCPMC11077898
OpenAlexW4394852365

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.