Catégorie : Dossiers scientifiques

Cannabis and mental illness : a review, Darby J. E. Lowe et al., 2018

Cannabis and mental illness : a review Darby J. E. Lowe · Julia D. Sasiadek · Alexandria S. Coles · Tony P. George European Archives of Psychiatry and Clinical Neuroscience, 2018, 1-14. Doi : 10.1007/s00406-018-0970-7   Abstract With the increasing push to legalize cannabis in Western nations, there is a need to gage the potential impact of this policy change on vulnerable populations, such as those with mental illness, including schizophrenia, mood, and anxiety disorders. This is particularly important as there are strong motives in these individuals to seek short-term reward (e.g., “getting high”). Nonetheless, data to support the beneficial effects of cannabis use in psychiatric [...]

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Supporting Future Cannabis Policy – Developing a Standard Joint Unit : A Brief Back-Casting Exercise, Hugo López-Pelayo et al.

Supporting Future Cannabis Policy – Developing a Standard Joint Unit : A Brief Back-Casting Exercise. Hugo López-Pelayo, Silvia Matrai, Mercè Balcells-Olivero, Eugènia Campeny, Fleur Braddick, Matthijs G. Bossong, Olga S. Cruz, Paolo Deluca, Geert Dom, Daniel Feingold, Tom P. Freeman, Pablo Guzman, Chandni Hindocha, Brian C. Kelly, Nienke Liebregts, Valentina Lorenzetti, Jakob Manthey, João Matias, Clara Oliveras, Maria Teresa Pons, Jürgen Rehm, Moritz Rosenkranz, Zoe Swithenbank, Luc van Deurse, Julian Vicente, Mike Vuolo, Marcin Wojnar and Antoni Gual Frontiers in  Psychiatry, 2021, 12, 675033. doi : 10.3389/fpsyt.2021.675033   The standardization of cannabis doses is a priority for research, policy-making, clinical and harm-reduction interventions and consumer security. Scientists [...]

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Fluorinated Cannabidiol Derivatives: Enhancement of Activity in Mice Models Predictive of Anxiolytic, Antidepressant and Antipsychotic Effects, Aviva Breuer et al., 2016

Fluorinated Cannabidiol Derivatives: Enhancement of Activity in Mice Models Predictive of Anxiolytic, Antidepressant and Antipsychotic Effects Aviva Breuer, Christeene G. Haj, Manoela V. Fogaça, Felipe V. Gomes, Nicole Rodrigues Silva, João Francisco Pedrazzi, Elaine A. Del Bel, Jaime C. Hallak, José A. Crippa, Antonio W. Zuardi, Raphael Mechoulam, Francisco S. Guimarães PLOS One, 2016, 11, (7), e0158779, 1-19. Doi : 10.1371/journal.pone.0158779   Abstract Cannabidiol (CBD) is a major Cannabis sativa constituent, which does not cause the typical marijuana psychoactivity. However, it has been shown to be active in a numerous pharma- cological assays, including mice tests for anxiety, obsessive-compulsive disorder, depres- sion and schizophrenia. In human [...]

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Editorial : Psychological Aspects of Cannabis Use and Cannabis Use Disorder, Daniel Feingold et al., 2021

Editorial: Psychological Aspects of Cannabis Use and Cannabis Use Disorder Daniel Feingold, Eva Hoch, Aviv Weinstein and Wayne Hall Frontiers in Psychiatry, 2021, Volume 12 | Article 789197 doi : 10.3389/fpsyt.2021.789197   Editorial on the Research Topic : Psychological Aspects of Cannabis Use and Cannabis Use Disorder   Keywords : cannabis, marijuana, cannabis use disorder, psychology, cognition, emotion An increasing global prevalence of cannabis use has produced increased treatment seeking for Cannabis Use Disorder (CUD) and an increased research effort to identify factors associated with initiation of cannabis use, transitions to regular cannabis use and the onset of CUD (1, 2). The majority of empirical studies focus on biological and [...]

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Cannabinoids and Endocannabinoids, and Prospective Modulation of EC Signaling in Neurodegenerative, Cardiovascular and Allied Disorders, Vinod Nikhra, 2019

Cannabinoids and Endocannabinoids, and Prospective Modulation of EC Signaling in Neurodegenerative, Cardiovascular and Allied Disorders Dr Vinod Nikhra Preprint, May 2019 Doi : 10.13140/RG.2.2.36649.24165   ABSTRACT CANNABIS USE AND AVAILABILITY: The Cannabis derivatives have been used for recreational and medicinal purposes since ancient times. Because of the additive potential of cannabis products, their sale, possession and use are variously regulated in different countries throughout the world. Still as a psychoactive drug, cannabis continues to find extensive favour among recreational and medical users in the USA and other countries having led to decriminalise cannabis use for recreational and medicinal purposes. ECS: RECEPTORS, LIGANDS AND SIGNALING: The endocannabinoid system comprises [...]

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The Effects of Cannabinoids on Sleep, Bhanu Prakash Kolla et al., 2022

The Effects of Cannabinoids on Sleep Bhanu Prakash Kolla, Lisa Hayes, Chaun Cox, Lindy Eatwell, Mark Deyo-Svendsen , and Meghna P. Mansukhani Journal of Primary Care & Community Health, 2022, Volume 13, 1–9. Doi : 10.1177/21501319221081277 Abstract The use of cannabis products to help with sleep and various other medical conditions by the public has increased significantly in recent years. Withdrawal from cannabinoids can lead to sleep disturbance. Here, we describe a patient who developed significant insomnia leading to worsening anxiety, mood, and suicidal ideation in the setting of medical cannabis withdrawal, prompting presentation to the Emergency Department and inpatient admission. There is a limited [...]

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Direct comparison of the acute effects of lysergic acid diethylamide and psilocybin in a double-blind placebo-controlled study in healthy subjects, Friederike Holze et al., 2022

Direct comparison of the acute effects of lysergic acid diethylamide and psilocybin in a double-blind placebo-controlled study in healthy subjects Friederike Holze, Laura Ley, Felix Müller, Anna M. Becker, Isabelle Straumann, Patrick Vizeli, Sebastian Silva Kuehne, Marc A. Roder, Urs Duthaler, Karolina E. Kolaczynska, Nimmy Varghese, Anne Eckert and Matthias E. Liechti Neuropsychopharmacology, 2022, 1-8. Doi : 10.1038/s41386-022-01297-2 Growing interest has been seen in using lysergic acid diethylamide (LSD) and psilocybin in psychiatric research and therapy. However, no modern studies have evaluated differences in subjective and autonomic effects of LSD and psilocybin or their similarities and dose equivalence. We used a double blind, randomized, placebo-controlled, [...]

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Contaminants of Concern in Cannabis : Microbes, Heavy Metals and Pesticides John M. McPartland and Kevin J. McKernan, 2017

Contaminants of Concern in Cannabis : Microbes, Heavy Metals and Pesticides John M. McPartland and Kevin J. McKernan in S. Chandra et al. (eds.), Cannabis sativa L. - Botany and Biotechnology, Chapter 22, 2017, 457-474. Doi : 10.1007/978-3-319-54564-6_22 Abstract Microbiological contaminants pose a potential threat to cannabis consumers. Bacteria and fungi may cause opportunistic infections in immuno-compromized individuals. Even dead organisms may trigger allergies and asthma. Toxins from microbial overloads, such as Shigla toxin and aflatoxins, may pose a problem—unlikely, but possible. The Cannabis plant hosts a robust microbiome; the identification of these organisms is underway. Cannabis bioaccumulates heavy metals in its tissues, so avidly [...]

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Efficacy and safety of psilocybin-assisted treatment for major depressive disorder : Prospective 12-month follow-up, Natalie Gukasyan et al., 2022

Efficacy and safety of psilocybin-assisted treatment for major depressive disorder : Prospective 12-month follow-up Natalie Gukasyan, Alan K Davis, Frederick S Barrett, Mary P Cosimano, Nathan D Sepeda, Matthew W Johnson and Roland R Griffiths Journal of Psychopharmacology, 2022, Vol. 36(2) 151–158. Doi : 10.1177/02698811211073759   Abstract Background : Preliminary data suggest that psilocybin-assisted treatment produces substantial and rapid antidepressant effects in patients with major depressive disorder (MDD), but little is known about long-term outcomes. Aims : This study sought to examine the efficacy and safety of psilocybin through 12 months in participants with moderate to severe MDD who received psilocybin. Methods : This randomized, waiting-list controlled study [...]

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Genomic and Chemical Diversity in Cannabis, C. Lynch et al., 2015

Genomic and Chemical Diversity in Cannabis Ryan C. Lyncha,e, Daniela Vergaraa, Silas Tittesa, Kristin Whitea, C. J. Schwartzb, Matthew J. Gibbsb, Travis C. Ruthenburgc,d, Kymron deCesarec, Donald P. Landc, and Nolan C. Kanea CRITICAL REVIEWS IN PLANT SCIENCES, 2016, VOL. 35, NOS. 5–6, 349–363 Doi : 10.1080/07352689.2016.1265363 ABSTRACT Plants of the Cannabis genus are the only prolific producers of phytocannabinoids, compounds that strongly interact with the evolutionarily ancient endocannabinoid receptors shared by most bilaterian taxa. For millennia, the plant has been cultivated not only for these compounds, but also for food, rope, paper, and clothing. Today, specialized varieties yielding high-quality textile fibers, nutritional seed oil, or high cannabinoid [...]

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