Evidence map›Paper›PMID 22983145›Full record

ArticlePsychopharmacology2013

Long-term cognitive impairments induced by chronic cannabinoid exposure during adolescence in rats: a strain comparison.

Justine Renard, Marie-Odile Krebs, Thérèse M Jay, Gwenaëlle Le Pen

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Psychopharmacology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
6.2field-weighted citation impact, top 3% 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

36 citing papers in PubMed, 79 citations in OpenAlex.

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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

4 authors at 2 institutions in 1 country.

Justine RenardLaboratoire de "Physiopathologie des maladies Psychiatriques", Centre de Psychiatrie et Neurosciences U894, INSERM, Paris, France.
Marie-Odile Krebs
Thérèse M Jay
Gwenaëlle Le Pen
Institut de Psychiatrie et Neurosciences de Paris · FRInserm · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleDuring cerebral development, adolescence is a critical phase in which the endocannabinoid system plays an important role in regulating various neurotransmitters. Moreover, evidence from both human and animal studies suggests that chronic cannabinoid exposure during this vulnerable period can induce persistent brain and behavioural alterations.

objectivesThe aim of this study was to compare the long-term cognitive consequences of chronic adolescence cannabinoid exposure between Lister Hooded rats and Wistar rats.

methodsRats of both strains were injected daily throughout their adolescent or adult periods with vehicle or with incremental doses of the synthetic cannabinoid CB1 receptor agonist CP55,940 (CP). Short-term and spatial working memories were assessed using the object recognition and object location, tasks respectively. For both tasks, the effect of a 30- or 120-min delay between the learning and the testing phase was investigated.

resultsIn the object recognition task, adolescent CP exposure impaired short-term memory after both delays in both strains. In contrast, in the object location task, adolescent CP exposure impaired spatial working memory in the Wistar rats after a 30-min delay, whereas the Lister Hooded rats exhibited a similar effect only after a 120-min delay. In these tests, no long-term deleterious effects were found following adult CP exposure in either strain.

conclusionsOur results confirm that adolescence is a critical period for the deleterious effects of cannabinoids on cognition and that these deleterious effects on spatial working memory are more strain-dependent than the effects observed on short-term memory.

Indexed as

Age FactorsAnimalsCannabinoidsCognition DisordersCyclohexanolsMaleMemory, Short-TermRatsRats, WistarSpatial BehaviorSpecies SpecificityTime Factors3-(2-hydroxy-4-(1,1-dimethylheptyl)phenyl)-4-(3-hydroxypropyl)cyclohexanolCannabinoidsCyclohexanols

Identifiers

PMID22983145
OpenAlexW2020745755

What OpenQuestion holds

Textmetadata
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.