Cannabinoids Block Cellular Entry of SARS-CoV‑2 and the Emerging Variants Richard B. van Breemen, Ruth N. Muchiri, Timothy A. Bates, Jules B. Weinstein, Hans C. Leier, Scotland Farley, and Fikadu G. Tafesse Journal of Natural Products, 2022, 85, 176−184. Doi : 10.1021/acs.jnatprod.1c00946 ABSTRACT : As a complement to vaccines, small-molecule therapeutic agents are needed to treat or prevent infections by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) and its variants, which cause COVID-19. Affinity selection−mass spectrometry was used for the discovery of botanical ligands to the SARS-CoV-2 spike protein. Cannabinoid acids from hemp (Cannabis sativa) were found to be allosteric as well as orthosteric ligands [...]
Lire la suiteCannabidiol as a Therapeutic Alternative for Post-traumatic Stress Disorder : From Bench Research to Confirmation in Human Trials Rafael M. Bitencourt and Reinaldo N. Takahashi Frontiers in Neuroscience, 2018, 12, 502, 1-10. Doi : 10.3389/fnins.2018.00502 Post-traumatic stress disorder (PTSD) is characterized by poor adaptation to a traumatic experience. This disorder affects approximately 10% of people at some point in life. Current pharmacological therapies for PTSD have been shown to be inefficient and produce considerable side effects. Since the discovery of the involvement of the endocannabinoid (eCB) system in emotional memory processing, pharmacological manipulation of eCB signaling has become a therapeutic possibility for the treatment of [...]
Lire la suiteIntegrating Endocannabinoid Signaling and Cannabinoids into the Biology and Treatment of Posttraumatic Stress Disorder Matthew N. Hill, Patrizia Campolongo, Rachel Yehuda and Sachin Pate Neuropsychopharmacology REVIEWS, 2018, 43, 80–102. doi : 10.1038/npp.2017.162 Exposure to stress is an undeniable, but in most cases surmountable, part of life. However, in certain individuals, exposure to severe or cumulative stressors can lead to an array of pathological conditions including posttraumatic stress disorder (PTSD), characterized by debilitating trauma-related intrusive thoughts, avoidance behaviors, hyperarousal, as well as depressed mood and anxiety. In the context of the rapidly changing political and legal landscape surrounding use of cannabis products in the USA, [...]
Lire la suiteBibliographie : Cannabis et Cannabinoides en Psychiatrie Docteur Christian Sueur, GRECC, janvier 2022. (5e version, janvier 2022....) 1 - Généralités : 1 - 11 2 -Cannabinoïdes et anxiété : 12 3 - Cannabidiol anxiolytique : 13 - 15 4 - Cannabidiol antipsychotique : 16 - 21 5 - Cannabinoïdes et dépression : 22 - 28 6 - Cannabidiol antidépresseur : 28 7 - Cannabinoïdes et Sommeil : 29 - 30 8 - Cannabinoïdes et addiction / Substance Use Disorders : 31 - 33 9 - Cannabinoïdes et addiction au Cannabis : 34 - 43 10 - Cannabinoïdes et addictions (cocaine, opiacés, amphétamines, alcool, tabac) : 44 - 57 11 - Cannabinoides et syndrome de Gilles [...]
Lire la suiteEarly Consumption of Cannabinoids : From Adult Neurogenesis to Behavior Citlalli Netzahualcoyotzi, Luis Miguel Rodríguez-Serrano, María Elena Chávez-Hernández and Mario Humberto Buenrostro-Jáuregui International Journal of Molecular Sciences, 2021, 22, 7450. doi : 10.3390/ijms22147450 Abstract The endocannabinoid system (ECS) is a crucial modulatory system in which interest has been increasing, particularly regarding the regulation of behavior and neuroplasticity. The adolescent–young adulthood phase of development comprises a critical period in the maturation of the nervous system and the ECS. Neurogenesis occurs in discrete regions of the adult brain, and this process is linked to the modulation of some behaviors. Since marijuana (cannabis) is the most consumed illegal [...]
Lire la suiteCannabinoid Addiction: Behavioral Models and Neural Correlates Rafael Maldonado and Fernando Rodriguez de Fonseca The Journal of Neuroscience, 2002, 22, (9), 3326–3331. Abstract The use of cannabis sativa preparations as recreational drugs can be traced back to the earliest civilizations. However, animal models of cannabinoid addiction allowing the exploration of neural correlates of cannabinoid abuse have been developed only recently. We review these models and the role of the CB1 cannabinoid receptor, the main target of natural cannabinoids, and its interaction with opioid and dopamine transmission in reward circuits. Extensive reviews on the molecular basis of cannabinoid action are available elsewhere (Piomelli et al., [...]
Lire la suite”State of the art on psychedelic research" Iker Puente, PhD Integral European Conference (IEC) Siófok, Hungary, 27 May 2018 Psychedelic psychotherapy and research: history 1st Phase: 1947-1970. First studies and beginning of research. 2nd Phase: 1971-1989. Prohibition of studies and other uses. 3nd Phase: 1990-2005. Beginning of new studies and research. 4rd Phase: 2006-2016. Positive outcomes, change of social perception, blossoming of research, publications and positive media coverage. Today: many studies in some of the most prestigious universities of the world: Johns Hopkins, Harvard, NYU, UCLA, Imperial College London… using MDMA, psilocybin, ketamine, LSD… (...)
Lire la suiteCannabinoid modulation of drug reward and the implications of marijuana legalization Dan P. Covey, Jennifer M. Wenzel, and Joseph F. Cheer Brain Research, 2015 1628, 233–243. doi : 10.1016/j.brainres.2014.11.034. Abstract Marijuana is the most popular illegal drug worldwide. Recent trends indicate that this may soon change; not due to decreased marijuana use, but to an amendment in marijuana’s illegal status. The cannabinoid type 1 (CB1) receptor mediates marijuana’s psychoactive and reinforcing properties. CB1 receptors are also part of the brain endocannabinoid (eCB) system and support numerous forms of learning and memory, including the conditioned reinforcing properties of cues predicting reward or punishment. This is accomplished [...]
Lire la suiteOn the Archetypal Nature of Bad Trips and Freakouts A Review of : "Confrontation With the Unconscious: Jungian Depth Psychology and Psychedelic Experience" by Scott J. Hill Danny Wedding, Peter H Addy PsycCRITIQUES, June 16, 2014, Vol. 59, No. 24, Article 4 © 2014 American Psychological Association In 1967 Scott J. Hill had a terrifying and traumatic experience after taking LSD, experiencing “the depths of madness and hell” (p. xiii). He became suicidal and dissociated, and he wondered whether he had gone insane. Over the next four decades, he struggled with the terror he felt during that experience; he could not come to terms with [...]
Lire la suiteCannabinoids and the endocannabinoid system in reward processing and addiction: from mechanisms to interventions Rainer Spanagel, PhD Dialogues in Clinical Neuroscience, 2020, 22, (3), 241-250. doi : 10.31887/DCNS.2020.22.3/rspanagel The last decades have seen a major gain in understanding the action of cannabinoids and the endocannabinoid system in reward processing and the development of addictive behavior. Cannabis-derived psychoactive compounds such as Δ9-tetrahydrocannabinol and synthetic cannabinoids directly interact with the reward system and thereby have addictive properties. Cannabinoids induce their reinforcing properties by an increase in tonic dopamine levels through a cannabinoid type 1 (CB1) receptor–dependent mechanism within the ventral tegmental area. Cues that are conditioned [...]
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