Mois : janvier 2020

Cannabis in Cancer Care, D.I. Abrams and M. Guzman, 2015

Cannabis in Cancer Care D.I. Abrams and M. Guzman Clinical Pharmacology & Therapeutics, 2015, 97, (6), 575-586. Doi : 10.1002/cpt.108   Cannabis has been used inmedicine for thousands of years prior to achieving its current illicit substance status. Cannabinoids, the active components of Cannabis sativa,mimic the effects of the endogenous cannabinoids (endocannabinoids), activating specific cannabinoid receptors, particularly CB1 found predominantly in the central nervous system and CB2 found predominantly in cells involved with immune function. Delta-9-tetrahydrocannabinol, themain bioactive cannabinoid in the plant, has been available as a prescriptionmedication approved for treatment of cancer chemotherapy-induced nausea and vomiting and anorexia associated with the AIDS wasting syndrome. Cannabinoidsmay [...]

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A behavioural comparison of acute and chronic D9-tetrahydrocannabinol and cannabidiol in C57BL/6JArc mice, Leonora E. Long et al., 2010

A behavioural comparison of acute and chronic D9-tetrahydrocannabinol and cannabidiol in C57BL/6JArc mice Leonora E. Long, Rose Chesworth, Xu-Feng Huang, Iain S. McGregor, Jonathon C. Arnold and Tim Karl International Journal of Neuropsychopharmacology, 2010, 13, 861–876. doi : 10.1017/S1461145709990605   Abstract Cannabis contains over 70 unique compounds and its abuse is linked to an increased risk of developing schizophrenia. The behavioural profiles of the psychotropic cannabis constituent D9 tetrahydro-cannabinol (D9-THC) and the non-psychotomimetic constituent cannabidiol (CBD) were investigated with a battery of behavioural tests relevant to anxiety and positive, negative and cognitive symptoms of schizophrenia. Male adult C57BL/6JArc mice were given 21 daily intraperitoneal injections of vehicle, [...]

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Are Your Patients Taking CBD? – Medscape – January 15, 2020

Are Your Patients Taking CBD? - Medscape - January 15, 2020 https://www.medscape.com/viewarticle/923801   Cannabidiol (CBD) is having its moment in the sun. A Gallup poll from last August found that 1 in 7 Americans use CBD, that 11% of users are 50 to 64 years of age, and that 8% are at least 65 years of age. Pain relief, anxiety, insomnia, and arthritis are the top reasons for use. Nearly 4 in 10 Americans think CBD oils should be legally available for adults to buy over the counter. Although the 2018 Farm Bill removed hemp (cannabis and cannabis derivatives such as CBD that contain less than 0.3% THC) [...]

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Cannabinoid Regulation of Fear and Anxiety : an Update, Eleni P. Papagianni & Carl W. Stevenson, 2019

Cannabinoid Regulation of Fear and Anxiety : an Update Eleni P. Papagianni & Carl W. Stevenson Current Psychiatry Reports, 2019, 21, 38 doi : 10.1007/s11920-019-1026-z   Abstract Purpose of Review : Anxiety- and trauma-related disorders are prevalent and debilitating mental illnesses associated with a significant socioeconomic burden. Current treatment approaches often have inadequate therapeutic responses, leading to symptom relapse. Here we review recent preclinical and clinical findings on the potential of cannabinoids as novel therapeutics for regulating fear and anxiety. Recent Findings : Evidence from preclinical studies has shown that the non-psychotropic phyto-cannabinoid cannabidiol and the endocannabinoid anandamide have acute anxiolytic effects and also regulate learned fear [...]

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Regulation of nausea and vomiting by cannabinoids, Linda A Parker et al., 2011

Regulation of nausea and vomiting by cannabinoids Linda A Parker, Erin M Rock and Cheryl L Limebeer British Journal of Pharmacology, 2011, 163, 1411-1422. Doi : 10.1111/j.1476-5381.2010.01176.x   Abstract Considerable evidence demonstrates that manipulation of the endocannabinoid system regulates nausea and vomiting in humans and other animals. The anti-emetic effect of cannabinoids has been shown across a wide variety of animals that are capable of vomiting in response to a toxic challenge. CB1 agonism suppresses vomiting, which is reversed by CB1 antagonism, and CB1 inverse agonism promotes vomiting. Recently, evidence from animal experiments suggests that cannabinoids may be especially useful in treating the more difficult to control [...]

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The cannabinoids : An overview. Therapeutic implications in vomiting and nausea after cancer chemotherapy, in appetite promotion, in multiple sclerosis and in neuroprotection, R. Mechoulam & L. Hanus, 2001

The cannabinoids : An overview. Therapeutic implications in vomiting and nausea after cancer chemotherapy, in appetite promotion, in multiple sclerosis and in neuroprotection R. Mechoulam PhD, L Hanušs PhD Pain Research Management, 2001, 6, (2), 67-73. Doi : 10.1155/2001/183057   The present paper describes the historical use of cannabis, starting with its use in Assyria and China. Recent advances in the understanding of the molecular basis of cannabis action are explained, including the identification of the cannabinoid receptors CB1 and CB2, as well as the isolation of endogenous cannabinoids from the brain and periphery. The use of delta9-tetrahydrocannabinol as an antivomiting and antinausea drug for cancer [...]

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Regulation of nausea and vomiting by cannabinoids and the endocannabinoid system, Keith A. Sharkey et al., 2014

Regulation of nausea and vomiting by cannabinoids and the endocannabinoid system Keith A. Sharkey, Nissar A. Darmani, and Linda A. Parker European Journal of Pharmacology, 2014 January 5; 722. doi : 10.1016/j.ejphar.2013.09.068.   Abstract Nausea and vomiting (emesis) are important elements in defensive or protective responses that animals use to avoid ingestion or digestion of potentially harmful substances. However, these neurally-mediated responses are at times manifested as symptoms of disease and they are frequently observed as side-effects of a variety of medications, notably those used to treat cancer. Cannabis has long been known to limit or prevent nausea and vomiting from a variety of causes.This has [...]

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A reliable and validated LC-MS/MS method for the simultaneous quantification of 4 cannabinoids in 40 consumer products, Qingfang Meng et al., 2018

A reliable and validated LC-MS/MS method for the simultaneous quantification of 4 cannabinoids in 40 consumer products Qingfang Meng, Beth Buchanan, Jonathan Zuccolo, Mathieu-Marc Poulin, Joseph Gabriele, David Charles Baranowski PLoS ONE, 2018, 13, (5), e0196396. https://doi.org/10.1371/journal.pone.0196396   Abstract In the past 50 years, Cannabis sativa (C. sativa) has gone from a substance essentially prohibited worldwide to one that is gaining acceptance both culturally and legally in many countries for medicinal and recreational use. As additional jurisdictions legalize Cannabis products and the variety and complexity of these products surpass the classical dried plant material, appropriate methods for measuring the biologically active constituents is paramount to ensure [...]

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Single Shot of Ketamine May Herald ‘Last Call’ for Problem Drinking, Deborah Brauser, 2019

Single Shot of Ketamine May Herald 'Last Call' for Problem Drinking Deborah Brauser Medscape, December 11, 2019 Medscape Medical News © 2019 https://www.medscape.com/viewarticle/922460?src=wnl_tp10n_200116_mscpedit&uac=292598PZ&impID=2238619&faf=1   An experimental treatment that includes a single infusion of ketamine may lead to long-term improvement in problem drinking, new research suggests. In an study of 90 heavy drinkers, those who received a single dose of intravenous (IV) ketamine plus cognitive behavioral therapy (CBT) that focused on reactivating drinking-related "maladaptive reward memories" (MRMs) significantly curbed the urge to drink and reduced alcohol intake  compared with those who received the ketamine alone or a placebo infusion. In addition, the combination group reduced their average weekly alcohol consumption by [...]

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Isolation of a High Affinity Cannabinoid for Human CB1 Receptor from a Medicinal Cannabis Variety: Δ9-Tetrahydrocannabutol, the Butyl Homologue of Δ9-Tetrahydrocannabinol, Pasquale Linciano et al., 2019

Isolation of a High Affinity Cannabinoid for Human CB1 Receptor from a Medicinal Cannabis Variety: Δ9-Tetrahydrocannabutol, the Butyl Homologue of Δ9-Tetrahydrocannabinol Pasquale Linciano, Cinzia Citti, Livio Luongo, Carmela Belardo, Sabatino Maione, Maria Angela Vandelli, Flavio Forni, Giuseppe Gigli, Aldo Laganà, Carmela Maria Montone, Giuseppe Cannazza Journal of Natural Products, 2019 Dec 31. doi: 10.1021/acs.jnatprod.9b00876.   Abstract The butyl homologues of Δ9-tetrahydrocannabinol, Δ9-tetrahydrocannabutol (Δ9-THCB), and cannabidiol, cannabidibutol (CBDB), were isolated from a medicinal Cannabis sativa variety (FM2) inflorescence. Appropriate spectroscopic and spectrometric characterization, including NMR, UV, IR, ECD, and HRMS, was carried out on both cannabinoids. The chemical structures and absolute configurations of the isolated cannabinoids were [...]

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