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Cannabinoid-like effects of five novel carboxamide synthetic cannabinoids. | LitMetric

Cannabinoid-like effects of five novel carboxamide synthetic cannabinoids.

Neurotoxicology

Department of Pharmacology and Neuroscience, Center for Neuroscience Discovery, University of North Texas Health Science Center, 3500 Camp Bowie Blvd, Fort Worth, TX, 76107-2699, USA.

Published: January 2019

AI Article Synopsis

Article Abstract

A new generation of novel cannabinoid compounds have been developed as marijuana substitutes to avoid drug control laws and cannabinoid blood tests. 5F-MDMB-PINACA (also known as 5F-ADB, 5F-ADB-PINACA), MDMB-CHIMICA, MDMB-FUBINACA, ADB-FUBINACA, and AMB-FUBINACA (also known as FUB-AMB, MMB-FUBINACA) were tested for in vivo cannabinoid-like effects to assess their abuse liability. Locomotor activity in mice was tested to screen for locomotor depressant effects and to identify behaviorally-active dose ranges and times of peak effect. Discriminative stimulus effects were tested in rats trained to discriminate Δ-tetrahydrocannabinol (3 mg/kg, 30-min pretreatment). 5F-MDMB-PINACA (ED = 1.1 mg/kg) and MDMB-CHIMICA (ED = 0.024 mg/kg) produced short-acting (30 min) depression of locomotor activity. ADB-FUBINACA (ED = 0.19 mg/kg), and AMB- FUBINACA (ED = 0.19 mg/kg) depressed locomotor activity for 60-90 min; whereas MDMB-FUBINACA (ED = 0.04 mg/kg) depressed locomotor activity for 150 min. AMB-FUBINACA produced tremors at the highest dose tested. 5F-MDMB-PINACA (ED = 0.07), MDMB-CHIMICA (ED = 0.01 mg/kg), MDMB-FUBINACA (ED = 0.051 mg/kg), ADB-FUBINACA (ED = 0.075 mg/kg) and AMB-FUBINACA (ED = 0.029) fully substituted for the discriminative stimulus effects of Δ-THC following 15-min pretreatment. All 5 compounds decreased locomotor activity and produced discriminative stimulus effects similar to those of Δ-THC, which suggests they may have abuse liability similar to that of Δ-THC. AMB-FUBINACA may have an increased risk of toxicities in recreational users.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6342640PMC
http://dx.doi.org/10.1016/j.neuro.2018.11.004DOI Listing

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