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'''11-Hydroxy-Δ<sup>9</sup>-tetrahydrocannabinol''' ('''11-OH-Δ<sup>9</sup>-THC''', alternatively numbered as '''7-OH-Δ<sup>1</sup>-THC'''), usually referred to |
'''11-Hydroxy-Δ<sup>9</sup>-tetrahydrocannabinol''' ('''11-OH-Δ<sup>9</sup>-THC''', alternatively numbered as '''7-OH-Δ<sup>1</sup>-THC'''), usually referred to as '''11-hydroxy-THC''' is the main active ] of ] (THC), which is formed in the body after Δ<sup>9</sup>-THC is consumed.<ref name=Kraemer2007>{{cite journal | vauthors = Kraemer T, Paul LD | title = Bioanalytical procedures for determination of drugs of abuse in blood | journal = Analytical and Bioanalytical Chemistry | volume = 388 | issue = 7 | pages = 1415–1435 | date = August 2007 | pmid = 17468860 | doi = 10.1007/s00216-007-1271-6 | s2cid = 32917584 }}</ref><ref name=Huestis2005>{{cite book | vauthors = Huestis MA | title = Cannabinoids | chapter = Pharmacokinetics and metabolism of the plant cannabinoids, delta9-tetrahydrocannabinol, cannabidiol and cannabinol | series = Handbook of Experimental Pharmacology | volume = 168 | pages = 657–690 | date = 2005 | issue = <!-- none --> | pmid = 16596792 | doi = 10.1007/3-540-26573-2_23 | isbn = 3-540-22565-X }}</ref> | ||
After ], THC is ] inside the body by ] enzymes such as ] and ] into 11-hydroxy-THC and then further metabolized by |
After ], THC is ] inside the body by ] enzymes such as ] and ] into 11-hydroxy-THC and then further metabolized by the ] and ] enzyme to form ] (THC-COOH) which is inactive at the CB<sub>1</sub> receptors;<ref name=Huestis2005/> and further ] to form 11-nor-Δ<sup>9</sup>-tetrahydrocannabinol-9-carboxylic acid glucuronide (Δ<sup>9</sup>-THC-COOH-glu)<ref name="Stout_2014">{{cite journal | vauthors = Stout SM, Cimino NM | title = Exogenous cannabinoids as substrates, inhibitors, and inducers of human drug metabolizing enzymes: a systematic review | journal = Drug Metabolism Reviews | volume = 46 | issue = 1 | pages = 86–95 | date = February 2014 | pmid = 24160757 | doi = 10.3109/03602532.2013.849268 | s2cid = 29133059 | url = https://zenodo.org/record/1093138 }}</ref> in the liver, from where it is subsequently excreted through feces and urine (via ] from the liver).<ref name="Grotenhermen_2003">{{cite journal | vauthors = Grotenhermen F | title = Pharmacokinetics and pharmacodynamics of cannabinoids | journal = Clinical Pharmacokinetics | volume = 42 | issue = 4 | pages = 327–360 | date = 2003 | pmid = 12648025 | doi = 10.2165/00003088-200342040-00003 | s2cid = 25623600 }}</ref> Both metabolites, along with THC, can be assayed in drug tests.<ref name=Kraemer2007/> | ||
11-hydroxy-THC can be formed after consumption of |
11-hydroxy-THC can be formed after consumption of THC from inhalation (vaping, smoking) and oral (by mouth, edible, sublingual) use, although levels of 11-hydroxy-THC are typically higher when eaten compared to inhalation.<ref name="Huestis_1992">{{cite journal | vauthors = Huestis MA, Henningfield JE, Cone EJ | title = Blood cannabinoids. I. Absorption of THC and formation of 11-OH-THC and THCCOOH during and after smoking marijuana | journal = Journal of Analytical Toxicology | volume = 16 | issue = 5 | pages = 276–282 | date = 1992 | pmid = 1338215 | doi = 10.1093/jat/16.5.276 }}</ref><ref name="Karschner_2009">{{cite journal | vauthors = Karschner EL, Schwilke EW, Lowe RH, Darwin WD, Herning RI, Cadet JL, Huestis MA | title = Implications of plasma Delta9-tetrahydrocannabinol, 11-hydroxy-THC, and 11-nor-9-carboxy-THC concentrations in chronic cannabis smokers | journal = Journal of Analytical Toxicology | volume = 33 | issue = 8 | pages = 469–477 | date = October 2009 | pmid = 19874654 | pmc = 3159863 | doi = 10.1093/jat/33.8.469 }}</ref> | ||
== Pharmacology == | == Pharmacology == | ||
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== Research == | == Research == | ||
In an '']'' analysis by the ] on ] it was found that 11-OH-Δ<sup>9</sup>-THC had the 3rd highest ] inhibitor activity against ] out of all the cannabinoids tested within that study but not as high as the |
In an '']'' analysis by the ] on ] it was found that 11-OH-Δ<sup>9</sup>-THC had the 3rd highest ] inhibitor activity against ] out of all the cannabinoids tested within that study but not as high as the ] ] (56% 11-OH-Δ<sup>9</sup>-THC vs 100% GC376).<ref>{{cite journal | vauthors = Liu C, Puopolo T, Li H, Cai A, Seeram NP, Ma H | title = Identification of SARS-CoV-2 Main Protease Inhibitors from a Library of Minor Cannabinoids by Biochemical Inhibition Assay and Surface Plasmon Resonance Characterized Binding Affinity | journal = Molecules | volume = 27 | issue = 18 | page = 6127 | date = September 2022 | pmid = 36144858 | pmc = 9502466 | doi = 10.3390/molecules27186127 | doi-access = free }}</ref> | ||
== See also == | == See also == |
Revision as of 03:37, 14 April 2024
Active metabolite of Δ9-THC For the isomer of this chemical inherited from Δ-tetrahydrocannabinol, see 11-Hydroxy-Delta-8-THC. Pharmaceutical compoundClinical data | |
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Drug class | Cannabinoid |
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ECHA InfoCard | 100.164.583 |
Chemical and physical data | |
Formula | C21H30O3 |
Molar mass | 330.468 g·mol |
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11-Hydroxy-Δ-tetrahydrocannabinol (11-OH-Δ-THC, alternatively numbered as 7-OH-Δ-THC), usually referred to as 11-hydroxy-THC is the main active metabolite of tetrahydrocannabinol (THC), which is formed in the body after Δ-THC is consumed.
After cannabis consumption, THC is metabolized inside the body by cytochrome P450 enzymes such as CYP2C9 and CYP3A4 into 11-hydroxy-THC and then further metabolized by the dehydrogenase and CYP2C9 enzyme to form 11-nor-9-carboxy-THC (THC-COOH) which is inactive at the CB1 receptors; and further glucuronidated to form 11-nor-Δ-tetrahydrocannabinol-9-carboxylic acid glucuronide (Δ-THC-COOH-glu) in the liver, from where it is subsequently excreted through feces and urine (via bile from the liver). Both metabolites, along with THC, can be assayed in drug tests.
11-hydroxy-THC can be formed after consumption of THC from inhalation (vaping, smoking) and oral (by mouth, edible, sublingual) use, although levels of 11-hydroxy-THC are typically higher when eaten compared to inhalation.
Pharmacology
Like Δ-THC, 11-hydroxy-THC is a partial agonist at the cannabinoid receptor CB1, but with significantly higher binding affinity (Ki = 0.37 nM compared to Δ-THC Ki = 35 nM). With respect to cAMP inhibition at CB1 it displays a similar efficacy to that of Δ-THC (EC50 = 11 nM vs. EC50 = 5.2 nM, respectively), but a lower maximum response (Emax = 28% vs. Emax = 70%).
Research
In an in vitro analysis by the University of Rhode Island on cannabinoids it was found that 11-OH-Δ-THC had the 3rd highest 3C-like protease inhibitor activity against COVID-19 out of all the cannabinoids tested within that study but not as high as the antiviral drug GC376 (56% 11-OH-Δ-THC vs 100% GC376).
See also
- 11-Hydroxy-Delta-8-THC
- 11-Hydroxyhexahydrocannabinol
- 3'-Hydroxy-THC
- 7-Hydroxycannabidiol
- 8,11-Dihydroxytetrahydrocannabinol
- 11-OH-CBN
- Cannabis edible
- Delta-11-Tetrahydrocannabinol
References
- ^ Kraemer T, Paul LD (August 2007). "Bioanalytical procedures for determination of drugs of abuse in blood". Analytical and Bioanalytical Chemistry. 388 (7): 1415–1435. doi:10.1007/s00216-007-1271-6. PMID 17468860. S2CID 32917584.
- ^ Huestis MA (2005). "Pharmacokinetics and metabolism of the plant cannabinoids, delta9-tetrahydrocannabinol, cannabidiol and cannabinol". Cannabinoids. Handbook of Experimental Pharmacology. Vol. 168. pp. 657–690. doi:10.1007/3-540-26573-2_23. ISBN 3-540-22565-X. PMID 16596792.
- Stout SM, Cimino NM (February 2014). "Exogenous cannabinoids as substrates, inhibitors, and inducers of human drug metabolizing enzymes: a systematic review". Drug Metabolism Reviews. 46 (1): 86–95. doi:10.3109/03602532.2013.849268. PMID 24160757. S2CID 29133059.
- Grotenhermen F (2003). "Pharmacokinetics and pharmacodynamics of cannabinoids". Clinical Pharmacokinetics. 42 (4): 327–360. doi:10.2165/00003088-200342040-00003. PMID 12648025. S2CID 25623600.
- Huestis MA, Henningfield JE, Cone EJ (1992). "Blood cannabinoids. I. Absorption of THC and formation of 11-OH-THC and THCCOOH during and after smoking marijuana". Journal of Analytical Toxicology. 16 (5): 276–282. doi:10.1093/jat/16.5.276. PMID 1338215.
- Karschner EL, Schwilke EW, Lowe RH, Darwin WD, Herning RI, Cadet JL, Huestis MA (October 2009). "Implications of plasma Delta9-tetrahydrocannabinol, 11-hydroxy-THC, and 11-nor-9-carboxy-THC concentrations in chronic cannabis smokers". Journal of Analytical Toxicology. 33 (8): 469–477. doi:10.1093/jat/33.8.469. PMC 3159863. PMID 19874654.
- ^ Zagzoog A, Cabecinha A, Abramovici H, Laprairie RB (26 August 2022). "Modulation of type 1 cannabinoid receptor activity by cannabinoid by-products from Cannabis sativa and non-cannabis phytomolecules". Frontiers in Pharmacology. 13: 956030. doi:10.3389/fphar.2022.956030. PMC 9458935. PMID 36091813.
- Liu C, Puopolo T, Li H, Cai A, Seeram NP, Ma H (September 2022). "Identification of SARS-CoV-2 Main Protease Inhibitors from a Library of Minor Cannabinoids by Biochemical Inhibition Assay and Surface Plasmon Resonance Characterized Binding Affinity". Molecules. 27 (18): 6127. doi:10.3390/molecules27186127. PMC 9502466. PMID 36144858.
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