Journal
NUTRIENTS
Volume 14, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/nu14102101
Keywords
CBD; cannabidiol; cannabis; cannabinoids; pharmacokinetics; muscle; liver; adipose; fat; metabolism
Categories
Funding
- cbdMD [55472]
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This study investigated the pharmacokinetics and tissue accumulation of orally consumed CBD in adult rats. The results showed that CBD levels were higher in adipose tissue compared to liver and muscle, and there was a moderate correlation between CBD levels in adipose and muscle tissue. CBD feeding also resulted in gender-specific effects and alterations in pharmacokinetics.
Oral cannabidiol (CBD) consumption is widespread in North America and Europe, as it has analgesic, neuroprotective and antitumor effects. Although oral CBD consumption in humans affords beneficial effects in epileptic and inflammatory states, its pharmacokinetics and subsequent uptake into tissue are largely unknown. This study investigated plasma pharmacokinetics and accumulation of CBD in gastrocnemius muscle, liver and adipose tissue in adult rats following oral gavage. CBD was fed relative to body mass at 0 (control), 30, 115, or 230 mg/Kg/day for 28 days; with 6 males and 6 females per dosing group. Pharmacokinetics were assessed on day 1 and day 28 in the group receiving CBD at 115 mg/Kg/day. The rise in tissue CBD was closely related to specific pharmacokinetic parameters, and adipose tissue levels were --10 to --100 fold greater than liver or muscle. Tissue CBD levels were moderately correlated between adipose and muscle, and adipose and liver, but were highly correlated for liver and muscle. CBD feeding resulted in several gender-specific effects, including changes in pharmacokinetics, relationships between pharmacokinetic parameters and tissue CBD and differences in tissue CBD levels. CBD accumulation in mammalian tissues has the potential to influence receptor binding and metabolism; therefore, the present findings may have relevance for developing oral dosing regimens.
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