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CB 1 is expressed on several types of cells in pituitary gland, thyroid gland, and possibly in the adrenal gland. [24] CB1 is also expressed in several cells relating to metabolism, such as fat cells, muscle cells, liver cells (and also in the endothelial cells, Kupffer cells and stellate cells of the liver), and in the digestive tract. [24]
Cannabinoid receptors are activated by three major groups of ligands: Endocannabinoids; Phytocannabinoids (plant-derived such as tetrahydrocannabinol (THC) produced by cannabis); Synthetic cannabinoids (such as HU-210). All endocannabinoids and phytocannabinoids are lipophilic. There are two known subtypes of cannabinoid receptors, termed CB 1 ...
The mixture of cannabinoids produced by a plant is known as the plant's cannabinoid profile. Selective breeding has been used to control the genetics of plants and modify the cannabinoid profile. For example, strains that are used as fiber (commonly called hemp ) are bred such that they are low in psychoactive chemicals like THC.
The cannabinoid receptor 2 (CB2), is a G protein-coupled receptor from the cannabinoid receptor family that in humans is encoded by the CNR2 gene. [5] [6] It is closely related to the cannabinoid receptor 1 (CB1), which is largely responsible for the efficacy of endocannabinoid-mediated presynaptic-inhibition, the psychoactive properties of tetrahydrocannabinol (THC), the active agent in ...
The table highlights several common cannabinoids along with putative receptor targets and therapeutic properties. Exogenous (plant-derived) phytocannabinoids are identified with an asterisk while remaining chemicals represent well-known endocannabinoids (i.e., endogenously produced cannabinoid receptor ligands).
Δ-8-tetrahydrocannabinol (delta-8-THC, [a] Δ 8-THC) is a psychoactive cannabinoid found in the cannabis plant. [1] It is an isomer of delta-9-tetrahydrocannabinol (delta-9-THC, Δ 9-THC), the compound commonly known as THC, with which it co-occurs in hemp; natural quantities of ∆ 8-THC found in hemp are low.
It is the principal psychoactive constituent of cannabis and one of at least 113 total cannabinoids identified on the plant. Although the chemical formula for THC (C 21 H 30 O 2 ) describes multiple isomers , [ 10 ] the term THC usually refers to the delta-9-THC isomer with chemical name (−)- trans -Δ 9 -tetrahydrocannabinol .
The most psychoactive cannabinoid found in the cannabis plant is tetrahydrocannabinol (or delta-9-tetrahydrocannabinol, commonly known as THC). [9] Other cannabinoids include delta-8-tetrahydrocannabinol , cannabidiol (CBD), cannabinol (CBN), cannabicyclol (CBL), cannabichromene (CBC) and cannabigerol (CBG); they have less psychotropic effects ...