Evidence map›Paper›PMID 22374253›Full record

ArticlePsychopharmacology2012

Interactions between dopamine transporter and cannabinoid receptor ligands in rhesus monkeys.

David R Schulze, F Ivy Carroll, Lance R McMahon

Open access · greenAbstract read
In one paragraph

Article in Psychopharmacology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 2 pooled it
1.6field-weighted citation impact, top 16% 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

8 citing papers in PubMed, 2 syntheses or guidelines pooled it, 20 citations in OpenAlex.

  1. Cannabinoid Hyperemesis Syndrome: Diagnosis, Pathophysiology, and Treatment-a Systematic Review.Journal of medical toxicology : official journal of the American College of Medical Toxicology · 2017
    Pooled it
  2. Pooled it
  3. Review
  4. Review
  5. Review
  6. In Response to: Cannabinoid Hyperemesis Syndrome: Diagnosis, Pathophysiology, and Treatment-a Systematic Review.Journal of medical toxicology : official journal of the American College of Medical Toxicology · 2017
    Article
  7. Article
  8. 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.

David R SchulzeDepartment of Pharmacology, The University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229-3900, USA.
F Ivy Carroll
Lance R McMahon
The University of Texas Health Science Center at San Antonio · USRTI International · US

Funding

Treatment of Cannabinoid Withdrawal in Rhesus MonkeysR01DA019222 · NIDA · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI MCMAHON, LANCE R. · 2004 to 2013
$3.6M
Pharmacotherapy of Cannabinoid Withdrawal: Pre-Clinical StudiesR01DA026781 · NIDA · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI MCMAHON, LANCE R. · 2009 to 2010
$718k
NIDA NIH HHS R01 DA019222NIDA NIH HHS R01 DA026781NIDA NIH HHS R01-DA19222NIDA NIH HHS R01-DA26781
6 · The paper itself

Abstract

rationaleΔ(9)-tetrahydrocannabinol (Δ(9)-THC) modifies dopamine efflux. However, the extent to which cannabinoid and dopamine drugs modify each other's behavioral effects has not been fully established.

objectivesThis study examined dopamine releasers and/or transport inhibitors alone and in combination with cannabinoids in two drug discrimination assays.

methodsExperimentally and pharmacologically experienced rhesus monkeys (n = 5) discriminated Δ(9)-THC (0.1 mg/kg i.v.) from vehicle while responding under a fixed ratio 5 schedule of stimulus-shock termination. A separate group (n = 6) of monkeys responded under the same schedule, received daily Δ(9)-THC (1 mg/kg/12 h s.c.), and discriminated the cannabinoid antagonist rimonabant (1 mg/kg i.v.), i.e., cannabinoid withdrawal, from vehicle. A sign of withdrawal sign (head shaking) was examined in monkeys receiving Δ(9)-THC daily.

resultsRimonabant antagonized the Δ(9)-THC discriminative stimulus and a dose of Δ(9)-THC greater than the daily treatment attenuated the rimonabant discriminative stimulus. In monkeys discriminating Δ(9)-THC, the dopamine transporter ligands cocaine, amphetamine, bupropion, RTI 113, and RTI 177 produced a maximum of 2% responding on the drug lever and blocked the discriminative stimulus effects of Δ(9)-THC. In Δ(9)-THC treated monkeys discriminating rimonabant, the dopamine transporter ligands partially substituted for and increased the potency of rimonabant to produce discriminative stimulus effects. The dopamine antagonist haloperidol enhanced the Δ(9)-THC discriminative stimulus without significantly modifying the rimonabant discriminative stimulus. Imipramine and desipramine, which have low affinity for dopamine transporters, were less effective in modifying either the Δ(9)-THC or rimonabant discriminations. The dopamine transporter ligands and haloperidol attenuated head shaking, whereas imipramine and desipramine did not.

conclusionsDopamine release and/or inhibition of dopamine transport blocks detection of Δ(9)-THC and is potentially the mechanism by which some therapeutics (e.g., bupropion) reduce the subjective effects of marijuana and enhance the subjective effects of marijuana withdrawal.

Indexed as

AmphetamineAnimalsCocaineDiscrimination LearningDopamine Plasma Membrane Transport ProteinsDose-Response Relationship, DrugDronabinolFemaleHaloperidolImipramineMacaca mulattaMalePiperidinesPyrazolesReceptors, CannabinoidRimonabant3-(4'-chlorophenyl)-2-(3'-phenylisoxazol-5'-yl)tropaneAmphetamineCocaineDopamine Plasma Membrane Transport ProteinsDronabinolHaloperidolImipraminePiperidinesPyrazolesReceptors, CannabinoidRimonabantTropanes

Identifiers

PMID22374253
PMCPMC3620032
OpenAlexW2117199052

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.