Cannabis Domestication, Breeding History, Present-day Genetic Diversity, and Future Prospects Robert C. Clarke and Mark D. Merlin CRITICAL REVIEWS IN PLANT SCIENCES, 2016, VOL. 35, NOS. 5–6, 293–327 Doi : 10.1080/07352689.2016.1267498 ABSTRACT Humans and the Cannabis plant share an intimate history spanning millennia. Humans spread Cannabis from its Eurasian homelands throughout much of the world, and, in concert with local climatic and human cultural parameters, created traditional landrace varieties (cultivars resulting from a combination of natural and farmer selection) with few apparent signs of domestication. Cannabis breeders combined populations from widely divergent geographical regions and gene pools to develop economically valuable fiber, seed, and drug cultivars, [...]
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 suiteAdolescent treatment admissions for marijuana following recreational legalization in Colorado and Washington Jeremy Mennis, Gerald J. Stahler Drug and Alcohol Dependence, 2020, 210, 107960 Doi : 10.1016/j.drugalcdep.2020.107960 A B S T R A C T Introduction : There is concern that recreational marijuana legalization (RML) may lead to increased cannabis use disorder (CUD) among youth due to increased marijuana use. This study investigates whether adolescent substance use disorder treatment admissions for marijuana use increased in Colorado and Washington following RML. Methods : Annual data on 2008–2017 treatment admissions for marijuana use from the SAMHSA TEDS-A dataset for adolescents age 12–17 were used to model state treatment [...]
Lire la suiteAdolescent Treatment Admissions for Marijuana Following Recreational Legalization in Colorado and Washington Jeremy Mennis, Gerald J Stahler Drug and Alcohol Dependence, 2020 May 1, 210, 107960. doi : 10.1016/j.drugalcdep.2020.107960 Abstract Introduction : There is concern that recreational marijuana legalization (RML) may lead to increased cannabis use disorder (CUD) among youth due to increased marijuana use. This study investigates whether adolescent substance use disorder treatment admissions for marijuana use increased in Colorado and Washington following RML. Methods : Annual data on 2008-2017 treatment admissions for marijuana use from the SAMHSA TEDS-A dataset for adolescents age 12-17 were used to model state treatment admissions trends. [...]
Lire la suiteCannabis use and the course and outcome of major depressive disorder : A population based longitudinal study FEINGOLD D., REHM J., LEV-RAN S. Psychiatry Research, 2017, 251, 225-234. Doi : 10.1016/j.psychres.2017.02.027 Highlights • Individuals with baseline major depressive disorder were followed over a three-year time period. • Cannabis users and individuals with cannabis use disorders were compared to nonusers. • No differences were found in rates of remission between the groups. • Level of cannabis use was associated with significantly more depressive symptoms at follow-up. • These findings did not retain significance after adjusting for baseline confounding factors. Abstract Cannabis use has been reported to affect [...]
Lire la suiteMedical cannibus as an alternative for opioids for chronic pain : A case report Franklin E. Caldera SAGE Open Medical Case Reports, 2020, Volume 8, 1–3 DOI : 10.1177/2050313X20907015 Abstract Opioid medication–related deaths have increased to epidemic proportions in the last decade. This report describes a case of 43-year-old female with a traumatic brain injury who developed chronic pain and opioid dependence. The patient expressed concerns and wanted weaning off opioids. Recent legalization of medical marijuana in Pennsylvania allows us to try it as an alternative to opioids for chronic pain. Medical cannibus has risks associated with administration but is safer than opioids. Our patient [...]
Lire la suiteInteraction of maternal choline levels and prenatal Marijuana's effects on the offspring Camille Hoffman, Sharon K. Hunter, Angelo D'Alessandro, KathleenNoonan et al. Psychological Medicine, 2019 Doi : https://doi.org/10.1017/S003329171900179X Published online by Cambridge University Press: 31 July 2019 Abstract Background : This study investigated whether higher maternal choline levels mitigate effects of marijuana on fetal brain development. Choline transported into the amniotic fluid from the mother activates α7-nicotinic acetylcholine receptors on fetal cerebro-cortical inhibitory neurons, whose development is impeded by cannabis blockade of their cannabinoid-1(CB1) receptors. Methods : Marijuana use was assessed during pregnancy from women who later brought their newborns for study. Mothers were informed about [...]
Lire la suitePatient-reported use of medical cannabis for pain, anxiety, and depression symptoms : Systematic review and meta-analysis Jesse D. Kosiba, Stephen A. Maisto, Joseph W. Ditre Social Science & Medicine, 2019, 181-192. https://doi.org/10.1016/j.socscimed.2019.06.005 This study is the first to conduct a systematic review and meta-analysis of empirical studies that assess patient-reported reasons for using medical cannabis to alleviate pain, anxiety, and depression. The present review further assessed the quality of studies and identified several methodological flaws in extant research. Highlights •Systematically reviewed studies why patients use medical cannabis. •Pain was a common reason for medical cannabis use (64%). •Anxiety (50%) and depression (34%) were [...]
Lire la suiteTwo-thirds of Americans support marijuana legalization By Andrew Daniller Pew Research Center, FactTank, November 14, 2019 https://www.pewresearch.org/fact-tank/2019/11/14/americans-support-marijuana-legalization/?utm_source=AdaptiveMailer&utm_medium=email&utm_campaign=19-11-07%20Marijuana%20Legalization%20Heads-up&org=982&lvl=100&ite=4914&lea=1115963&ctr=0&par=1&trk= Two-thirds of Americans say the use of marijuana should be legal, reflecting a steady increase over the past decade, according to a new Pew Research Center survey. The share of U.S. adults who oppose legalization has fallen from 52% in 2010 to 32% today. Meanwhile, an overwhelming majority of U.S. adults (91%) say marijuana should be legal either for medical and recreational use (59%) or that it should be legal just for medical use (32%). Fewer than one-in-ten (8%) prefer to keep marijuana illegal in all circumstances, according [...]
Lire la suiteAssociations of Parental Marijuana Use With Offspring Marijuana, Tobacco, and Alcohol Use and Opioid Misuse Bertha K. Madras, Beth Han, Wilson M. Compton, Christopher M. Jones, Elizabeth I. Lopez, Elinore F. McCance-Katz JAMA Network Open, 2019, 2, (11), e1916015. doi : 10.1001/jamanetworkopen.2019.16015 Abstract IMPORTANCE : Marijuana use is increasing among adults and often co-occurs with other substance use; therefore, it is important to examine whether parental marijuana use is associated with elevated risk of substance use among offspring living in the same household. OBJECTIVE : To examine associations of parental marijuana use with offspring marijuana, tobacco, and alcohol use and opioid misuse. DESIGN, SETTING, AND PARTICIPANTS : [...]
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