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Molecules
Volume 24
Issue 9
10.3390/molecules24091694
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Article

Hepatotoxicity of a Cannabidiol-Rich Cannabis Extract in the Mouse Model

by
Laura E. Ewing
1,2,
Charles M. Skinner
1,3,
Charles M. Quick
4,
Stefanie Kennon-McGill
1,
Mitchell R. McGill
1,2,3,
Larry A. Walker
5,6,
Mahmoud A. ElSohly
5,6,7,
Bill J. Gurley
3,8 and
Igor Koturbash
1,3,*
1
Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
2
Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
3
Center for Dietary Supplements Research, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
4
Department of Pathology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
5
National Center for Natural Products Research, University of Mississippi, University, MS 38677, USA
6
ElSohly Laboratories, Inc. (ELI), Oxford, MS 38655, USA
7
Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS 38677, USA
8
Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR 72223, USA
*
Author to whom correspondence should be addressed.
Molecules 2019, 24(9), 1694; https://doi.org/10.3390/molecules24091694
Received: 11 April 2019 / Revised: 29 April 2019 / Accepted: 29 April 2019 / Published: 30 April 2019
(This article belongs to the Special Issue Plant Extracts: Biological and Pharmacological Activity)
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Abstract

The goal of this study was to investigate Cannabidiol (CBD) hepatotoxicity in 8-week-old male B6C3F1 mice. Animals were gavaged with either 0, 246, 738, or 2460 mg/kg of CBD (acute toxicity, 24 h) or with daily doses of 0, 61.5, 184.5, or 615 mg/kg for 10 days (sub-acute toxicity). These doses were the allometrically scaled mouse equivalent doses (MED) of the maximum recommended human maintenance dose of CBD in EPIDIOLEX® (20 mg/kg). In the acute study, significant increases in liver-to-body weight (LBW) ratios, plasma ALT, AST, and total bilirubin were observed for the 2460 mg/kg dose. In the sub-acute study, 75% of mice gavaged with 615 mg/kg developed a moribund condition between days three and four. As in the acute phase, 615 mg/kg CBD increased LBW ratios, ALT, AST, and total bilirubin. Hepatotoxicity gene expression arrays revealed that CBD differentially regulated more than 50 genes, many of which were linked to oxidative stress responses, lipid metabolism pathways and drug metabolizing enzymes. In conclusion, CBD exhibited clear signs of hepatotoxicity, possibly of a cholestatic nature. The involvement of numerous pathways associated with lipid and xenobiotic metabolism raises serious concerns about potential drug interactions as well as the safety of CBD. View Full-Text
Keywords: cannabidiol; hepatotoxicity; liver injury; natural products; phytochemical cannabidiol; hepatotoxicity; liver injury; natural products; phytochemical
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MDPI and ACS Style

Ewing, L.E.; Skinner, C.M.; Quick, C.M.; Kennon-McGill, S.; McGill, M.R.; Walker, L.A.; ElSohly, M.A.; Gurley, B.J.; Koturbash, I. Hepatotoxicity of a Cannabidiol-Rich Cannabis Extract in the Mouse Model. Molecules 2019, 24, 1694. https://doi.org/10.3390/molecules24091694

AMA Style

Ewing LE, Skinner CM, Quick CM, Kennon-McGill S, McGill MR, Walker LA, ElSohly MA, Gurley BJ, Koturbash I. Hepatotoxicity of a Cannabidiol-Rich Cannabis Extract in the Mouse Model. Molecules. 2019; 24(9):1694. https://doi.org/10.3390/molecules24091694

Chicago/Turabian Style

Ewing, Laura E., Charles M. Skinner, Charles M. Quick, Stefanie Kennon-McGill, Mitchell R. McGill, Larry A. Walker, Mahmoud A. ElSohly, Bill J. Gurley, and Igor Koturbash. 2019. "Hepatotoxicity of a Cannabidiol-Rich Cannabis Extract in the Mouse Model" Molecules 24, no. 9: 1694. https://doi.org/10.3390/molecules24091694

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