Evidence map›Paper›PMID 26118897›Full record

ArticleNeuroscience letters2015

Sex-specific alterations in hippocampal cannabinoid 1 receptor expression following adolescent delta-9-tetrahydrocannabinol treatment in the rat.

Lindsay Silva, Lauren Harte-Hargrove, Sari Izenwasser, Ashley Frank, Dean Wade, Diana Dow-Edwards

Abstract read
In one paragraph

Article in Neuroscience letters, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
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

19 citing papers in PubMed.

  1. Trial
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  11. Persistent Exposure to ΔThe Journal of pharmacology and experimental therapeutics · 2021
    Article
  12. Pharmacokinetic, behavioral, and brain activity effects of ΔNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2021
    Article
  13. Sex, species and age: Effects of rodent demographics on the pharmacology of ∆Progress in neuro-psychopharmacology & biological psychiatry · 2021
    Article
  14. Article
  15. Article
  16. Vaporized Cannabis Extracts Have Reinforcing Properties and Support Conditioned Drug-Seeking Behavior in Rats.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
    Article
  17. Article
  18. Article
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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

6 authors.

Lindsay SilvaDepartment of Physiology and Pharmacology, SUNY Downstate Medical Center, 450Clarkson Ave, Mail Stop 29, Brooklyn, NY 11203, USA.
Lauren Harte-HargroveDepartment of Physiology and Pharmacology, SUNY Downstate Medical Center, 450Clarkson Ave, Mail Stop 29, Brooklyn, NY 11203, USA.
Sari IzenwasserDepartment of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, 1600 NW 10th Avenue, Room 4113A (D-80), Miami, FL 33136 USA.
Ashley FrankDepartment of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, 1600 NW 10th Avenue, Room 4113A (D-80), Miami, FL 33136 USA.
Dean WadeDepartment of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, 1600 NW 10th Avenue, Room 4113A (D-80), Miami, FL 33136 USA.
Diana Dow-EdwardsDepartment of Physiology and Pharmacology, SUNY Downstate Medical Center, 450Clarkson Ave, Mail Stop 29, Brooklyn, NY 11203, USA. Electronic address: diana.dow-edwards@downstate.edu.

Funding

THC Affects the Development of Executive FunctionR01DA019348 · NIDA · SUNY DOWNSTATE MEDICAL CENTER · PI DOW-EDWARDS, DIANA L · 2004 to 2008
$1.6M
NIDA NIH HHS P50 DA04584-0001NIDA NIH HHS P50 DA04584-0002NIDA NIH HHS R01 DA019348
6 · The paper itself

Abstract

Marijuana use by adolescents has been on the rise since the early 1990s. With recent legalization and decriminalization acts passed, cannabinoid exposure in adolescents will undoubtedly increase. Human studies are limited in their ability to examine underlying changes in brain biochemistry making rodent models valuable. Studies in adult and adolescent animals show region and sex specific downregulation of the cannabinoid 1 (CB1) receptor following chronic cannabinoid treatment. However, although sex-dependent changes in behavior have been observed during the drug abstinence period following adolescent cannabinoid exposure, little is known about CB1 receptor expression during this critical time. In order to characterize CB1 receptor expression following chronic adolescent Δ-9-tetrahydrocannabinol (THC) exposure, we used [(3)H] CP55,940 binding to assess CB1 receptor expression in the dentate gyrus and areas CA1, CA2, and CA3 of the hippocampus in both male and female adolescent rats at both 24h and 2 weeks post chronic THC treatment. Consistent with other reported findings, we found downregulation of the CB1 receptor in the hippocampal formation at 24h post treatment. While this downregulation persisted in both sexes following two weeks of abstinence in the CA2 region, in females, this downregulation also persisted in areas CA1 and CA3. Expression in the dentate gyrus returned to the normal range by two weeks. These data suggest that selective regions of the hippocampus show persistent reductions in CB1 receptor expression and that these reductions are more widespread in female compared to male adolescents.

Indexed as

Age FactorsAnimalsAutoradiographyCyclohexanolsDronabinolFemaleHippocampusMalePsychotropic DrugsRats, Sprague-DawleyReceptor, Cannabinoid, CB1Sex Factors3-(2-hydroxy-4-(1,1-dimethylheptyl)phenyl)-4-(3-hydroxypropyl)cyclohexanolCyclohexanolsDronabinolPsychotropic DrugsReceptor, Cannabinoid, CB1AdolescenceCB1 receptor expressionDelta-9-TetrahydrocannabinolHippocampusSex differences

Identifiers

PMID26118897
PMCPMC4551506

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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.