Effects of vapourized THC and voluntary alcohol drinking during adolescence on cognition, reward, and anxiety-like behaviours in rats

Copyright © 2020 Elsevier Inc. All rights reserved..

Cannabis and alcohol co-use is prevalent in adolescence, but the long-term behavioural effects of this co-use remain largely unexplored. The aim of this study is to investigate the effects of adolescent alcohol and Δ9-tetrahydracannabinol (THC) vapour co-exposure on cognitive- and reward-related behaviours. Male Sprague-Dawley rats received vapourized THC (10 mg vapourized THC/four adolescent rats) or vehicle every other day (from post-natal day (PND) 28-42) and had continuous voluntary access to ethanol (10% volume/volume) in adolescence. Alcohol intake was measured during the exposure period to assess the acute effects of THC on alcohol consumption. In adulthood (PND 56+), rats underwent behavioural testing. Adolescent rats showed higher alcohol preference, assessed using the two-bottle choice test, on days on which they were not exposed to THC vapour. In adulthood, rats that drank alcohol as adolescents exhibited short-term memory deficits and showed decreased alcohol preference; on the other hand, rats exposed to THC vapour showed learning impairments in the delay-discounting task. Vapourized THC, alcohol or their combination had no effect on anxiety-like behaviours in adulthood. Our results show that although adolescent THC exposure acutely affects alcohol drinking, adolescent alcohol and cannabis co-use may not produce long-term additive effects.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:106

Enthalten in:

Progress in neuro-psychopharmacology & biological psychiatry - 106(2021) vom: 02. März, Seite 110141

Sprache:

Englisch

Beteiligte Personen:

Hamidullah, Shahnaza [VerfasserIn]
Lutelmowski, Claudia D [VerfasserIn]
Creighton, Samantha D [VerfasserIn]
Luciani, Karling R [VerfasserIn]
Frie, Jude A [VerfasserIn]
Winters, Boyer D [VerfasserIn]
Khokhar, Jibran Y [VerfasserIn]

Links:

Volltext

Themen:

7J8897W37S
Cannabis
Co-use
Dronabinol
Ethanol
Journal Article
Neurodevelopment
Research Support, Non-U.S. Gov't
Substance use

Anmerkungen:

Date Completed 31.12.2021

Date Revised 31.12.2021

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.pnpbp.2020.110141

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM316392472