Psychopharmacology
September 2018
Mehrak Javadi-Paydar, Jacques D. Nguyen, Tony M Kerr et al.
Previous studies report sex differences in some, but not all, responses to cannabinoids in rats. The majority of studies use parenteral injection; however, most human use is via smoke inhalation and, increasingly, vapor inhalation. To compare thermoregulatory and locomotor responses to inhaled ∆9-tetrahydrocannabinol (THC), cannabidiol (CBD), and their combination using an e-cigarette-based...
Pharmacology, Biochemistry, and Behavior
September 2018
Jacques D. Nguyen, Yanabel Grant, Tony M Kerr et al.
A reduced effect of a given dose of ∆9-tetrahydrocannabinol (THC) emerges with repeated exposure to the drug. This tolerance can vary depending on THC dose, exposure chronicity and the behavioral or physiological measure of interest. A novel THC inhalation system based on e-cigarette technology has been recently shown to produce the hypothermic and antinociceptive effects of THC in rats. To...
Learning & Memory
September 2018
Rimas A Kubilius, Paul M Kaplick, Carsten T. Wotjak
preprint
The prerequisites for responsible cannabis use are at the heart of current inquiries into cannabis decriminalization by policy makers as well as academic and nonacademic stakeholders at a global scale. Δ9-tetrahydrocannabinol (Δ9-THC), the prime psychoactive compound of the cannabis sativa, as well as cannabimimetics that resemble the pharmacological properties and psychological effects of...
Biological Psychiatry
August 16, 2018
Yan Jouroukhin, Xiaolei Zhu, Alexey V Shevelkin et al.
Background: Although several studies have linked adolescent cannabis use to long-term cognitive dysfunction, there are negative reports as well. The fact that not all users develop cognitive impairment suggests a genetic vulnerability to adverse effects of cannabis, which are attributed to action of Δ9-tetrahydrocannabinol (Δ9-THC), a cannabis constituent and partial agonist of brain...
Journal of Affective Disorders
August 1, 2018
Carrie Cuttler, Alexander Spradlin, Ryan J Mclaughlin
Cannabis is commonly used to alleviate symptoms of negative affect. However, a paucity of research has examined the acute effects of cannabis on negative affect in everyday life. The current study provides a naturalistic account of perceived changes in symptoms of depression, anxiety, and stress as a function of dose and concentration of Δ9tetrahydrocannabinol (THC) and cannabidiol (CBD). Data...
August 1, 2018
Josiane Bourque
Cette thèse fait la promotion d’une nouvelle approche ciblant le risque de psychose qui consiste à identifier les enfants et les jeunes adolescents de la communauté appartenant à différentes trajectoires développementales d’expériences psychotiques. Une identification très précoce du risque de psychose chez des jeunes de la communauté pourrait ainsi diminuer la période où les symptômes...
Frontiers in Pharmacology
July 23, 2018
Kitti Rusznák, Kata Csekő, Zsófia Varga et al.
23 citations
Marijuana is a widely used recreational drug with increasing legalization worldwide for medical purposes. Most experimental studies use either synthetic or plant-derived cannabinoids to investigate the effect of cannabinoids on anxiety and cognitive functions. The aim of this study was to mimic real life situations where young people smoke cannabis regularly to relax from everyday stress....
Neuropharmacology
July 15, 2018
Daniel G Barrus, Timothy W Lefever, Jenny L Wiley
Edible cannabis-infused products are an increasingly popular method of using cannabis in the United States. Yet, preclinical research to determine mechanisms underlying abuse of Δ9-tetrahydrocannabinol (THC), the primary psychoactive constituent of cannabis, has focused primarily on the effects of parenteral administration. The purpose of this study was to examine the rewarding and aversive...
Journal of Food and Drug Analysis
July 3, 2018
V. Cardenia, Tullia Gallina Toschi, Simona Scappini et al.
A routine method for determining cannabinoids in Cannabis sativa L. inflorescence, based on Fast gas chromatography coupled to mass spectrometry (Fast GC/MS), was developed and validated. To avoid the decarboxylation of carboxyl group of cannabinoids, different derivatization approaches, i.e. silylation and esterification (diazomethane-mediated), reagents and solvents (pyridine or ethyl...
Pediatric Emergency Care
July 2018
Justin W Heizer, Laura M Borgelt, Ferras Bashqoy et al.
This study aimed to explore a dose-response relationship of delta-9-tetrahydrocannabinol (THC) in THC-naïve children after unintentional acute exposure and compare clinical outcomes with non-naïve children. A retrospective review was performed on children aged 31 days to 20 years who presented to Children's Hospital Colorado for care related to acute THC toxicity. The children were divided into...