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Takahiro Doi, Akiko Asada, Akihiro Takeda, Takaomi Tagami, Munehiro Katagi, Hiroe Kamata, Yoshiyuki Sawabe
Synthetic cannabinoids, recently used as alternatives to Cannabis sativa, are among the most frequently abused drugs. Identified in 2014, the synthetic cannabinoids N-(1-amino-3-methyl-1-oxobutan-2-yl)-1-(5-fluoropentyl)-1H-indazole-3-carboxamide (5F-AB-PINACA) and methyl [1-(5-fluoropentyl)-1H-indazole-3-carbonyl]-valinate (5F-AMB) are carboxamides composed of 1-(5-fluoropentyl)-1H-indazole-3-carboxylic acid and valine amide/methyl ester. Because of their composition, these molecules have pairs of enantiomers derived from the chiral center of their amino acid structures...
October 19, 2016: Journal of Chromatography. A
Sonia Johnson, Luke Sheridan Rains, Steven Marwaha, John Strang, Thomas Craig, Tim Weaver, Paul McCrone, Michael King, David Fowler, Stephen Pilling, Louise Marston, Rumana Z Omar, Meghan Craig, Mark Hinton
BACKGROUND: Around 35-45 % of people in contact with services for a first episode of psychosis are using cannabis. Cannabis use is associated with delays in remission, poorer clinical outcomes, significant increases in the risk of relapse, and lower engagement in work or education. While there is a clear need for effective interventions, so far only very limited benefits have been achieved from psychological interventions. Contingency management (CM) is a behavioural intervention in which specified desired behavioural change is reinforced through financial rewards...
October 22, 2016: Trials
James A Cranford, Kipling M Bohnert, Brian E Perron, Carrie Bourque, Mark Ilgen
PURPOSE: To examine the prevalence and correlates of vaporization (i.e., "vaping") as a route of cannabis administration in a sample of medical cannabis patients. PROCEDURES: Adults ages 21 and older (N=1485M age=45.1) who were seeking medical cannabis certification (either for the first time or as a renewal) at medical cannabis clinics in southern Michigan completed a screening assessment. Participants completed measures of route of cannabis administration, cannabis use, alcohol and other substance use...
October 15, 2016: Drug and Alcohol Dependence
Tian Hua, Kiran Vemuri, Mengchen Pu, Lu Qu, Gye Won Han, Yiran Wu, Suwen Zhao, Wenqing Shui, Shanshan Li, Anisha Korde, Robert B Laprairie, Edward L Stahl, Jo-Hao Ho, Nikolai Zvonok, Han Zhou, Irina Kufareva, Beili Wu, Qiang Zhao, Michael A Hanson, Laura M Bohn, Alexandros Makriyannis, Raymond C Stevens, Zhi-Jie Liu
Cannabinoid receptor 1 (CB1) is the principal target of Δ(9)-tetrahydrocannabinol (THC), a psychoactive chemical from Cannabis sativa with a wide range of therapeutic applications and a long history of recreational use. CB1 is activated by endocannabinoids and is a promising therapeutic target for pain management, inflammation, obesity, and substance abuse disorders. Here, we present the 2.8 Å crystal structure of human CB1 in complex with AM6538, a stabilizing antagonist, synthesized and characterized for this structural study...
October 20, 2016: Cell
Christian Lehmann, Nicholas B Fisher, Barna Tugwell, Anna Szczesniak, Mel Kelly, Juan Zhou
BACKGROUND: Destruction of the insulin-producing beta cells in type 1 diabetes (T1D) is induced by invasion of immune cells causing pancreatic inflammation. Cannabidiol (CBD), a phytocannabinoid, derived from the plant, Cannabis sativa, was shown to lower the incidence of diabetes in non-obese diabetic (NOD) mice, an animal model of spontaneous T1D development. OBJECTIVE: The goal of this study was to investigate the impact of experimental CBD treatment on early pancreatic inflammation in T1D by intravital microscopy (IVM) in NOD mice...
October 18, 2016: Clinical Hemorheology and Microcirculation
Erik David Storholm, Michael J Silverberg, Derek D Satre
Access to substance use disorder (SUD) treatment is a critical issue for women with HIV. This study examined differences in SUD diagnoses, comorbid psychiatric diagnoses, and predictors of SUD treatment initiation among a diverse sample of HIV-positive women (n = 228) and a demographically similar cohort of HIV-negative women (n = 693). Diagnoses and service utilization data were obtained from electronic health records of members of a large integrated healthcare system in Northern California. HIV-positive women were less likely to initiate SUD treatment...
October 21, 2016: Journal of Psychoactive Drugs
Benjamin H Han, Scott Sherman, Pia M Mauro, Silvia S Martins, James Rotenberg, Joseph J Palamar
BACKGROUND AND AIMS: The ageing United States (US) population is providing an unprecedented population of older adults who use recreational drugs. We aimed to estimate the trends in the prevalence of past-year use of cannabis, describe the patterns and attitudes, and determine correlates of cannabis use by adults age 50 and older. DESIGN: Secondary analysis of the National Survey on Drug Use and Health survey from 2006 to 2013, a cross-sectional survey given to a nationally representative probability sample of populations living in US households...
October 21, 2016: Addiction
Alessandro Minarini, Silvia Ferrari, Martina Galletti, Nina Giambalvo, Daniela Perrone, Giulia Rioli, Gian Maria Galeazzi
N-acetylcysteine (NAC) is widely known for its role as a mucolytic and as an antidote to paracetamol overdose. There is increasing interest in the use of NAC in the treatment of several psychiatric disorders. The rationale for the administration of NAC in psychiatric conditions is based on its role as a precursor to the antioxidant glutathione, and its action as a modulating agent of glutamatergic, dopaminergic, neurotropic and inflammatory pathways. Areas covered: This study reviews the available data regarding the use of NAC in different psychiatric disorders including substance use disorders, autism, obsessive-compulsive spectrum disorders, schizophrenia, depression, bipolar disorder...
October 21, 2016: Expert Opinion on Drug Metabolism & Toxicology
Sivakumar Sanjeev, Deepti Zutshi, Navid Seraji-Bozorgzad, Aashit Shah
Marijuana-based treatment for refractory epilepsy shows promise in surveys, case series and clinical trials. However, literature on their electroencephalography (EEG) effects is sparse. Our objective is to analyze the effect of marijuana on EEG in a 24-year-old patient with idiopathic generalized epilepsy (IGE) treated with cannabis. We blindly reviewed three long-term EEGs-a 24-hour study while only on antiepileptic drugs (AEDs), a 72-hour EEG with Cannabis indica smoked on days one and three in addition to AEDs and a 48-hour EEG with combination C...
October 18, 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
George Mammen, Jürgen Rehm, Sergio Rueda
No abstract available.
October 20, 2016: Canadian Journal of Public Health. Revue Canadienne de Santé Publique
Luis Ig Ribeiro, Philip W Ind
As cannabis use increases, physicians need to be familiar with the effects of both cannabis and tobacco on the lungs. However, there have been very few long-term studies of cannabis smoking, mostly due to legality issues and the confounding effects of tobacco. It was previously thought that cannabis and tobacco had similar long-term effects as both cause chronic bronchitis. However, recent large studies have shown that, instead of reducing forced expiratory volume in 1 s and forced vital capacity (FVC), marijuana smoking is associated with increased FVC...
October 20, 2016: NPJ Primary Care Respiratory Medicine
Naveen Kumar Tirkey, Shashank Gupta
Cannabis is a frequently used illicit recreational drug that is known to be associated with a variety of psychopharmacological effects. Negative somatic effects such as myocardial infarction and stroke have been reported, though, less frequently. Most of the literature available has focused on the complications due to smoked forms of cannabis (ganja and charas). Here we report a case of acute myocardial ischaemia with acute ischaemic stroke developing after oral ingestion of 'Bhang', a preparation of cannabis...
September 2016: Journal of the Association of Physicians of India
(no author information available yet)
[This corrects the article DOI: 10.1371/journal.pone.0076635.].
2016: PloS One
Ester Pagano, Raffaele Capasso, Fabiana Piscitelli, Barbara Romano, Olga A Parisi, Stefania Finizio, Anna Lauritano, Vincenzo Di Marzo, Angelo A Izzo, Francesca Borrelli
Anecdotal and scientific evidence suggests that Cannabis use may be beneficial in inflammatory bowel disease (IBD) patients. Here, we have investigated the effect of a standardized Cannabis sativa extract with high content of cannabidiol (CBD), here named CBD BDS for "CBD botanical drug substance," on mucosal inflammation and hypermotility in mouse models of intestinal inflammation. Colitis was induced in mice by intracolonic administration of dinitrobenzenesulfonic acid (DNBS). Motility was evaluated in the experimental model of intestinal hypermotility induced by irritant croton oil...
2016: Frontiers in Pharmacology
Gordon D Ko, Sara L Bober, Sean Mindra, Jason M Moreau
Cannabis has been widely used as a medicinal agent in Eastern medicine with earliest evidence in ancient Chinese practice dating back to 2700 BC. Over time, the use of medical cannabis has been increasingly adopted by Western medicine and is thus a rapidly emerging field that all pain physicians need to be aware of. Several randomized controlled trials have shown a significant and dose-dependent relationship between neuropathic pain relief and tetrahydrocannabinol - the principal psychoactive component of cannabis...
2016: Journal of Pain Research
Daniel Fuster, Arantza Sanvisens, Ferran Bolao, Paola Zuluaga, Inmaculada Rivas, Magi Farré, Jordi Tor, Robert Muga
BACKGROUND: The health burden of cannabis use in patients with other substance dependencies is not fully understood. OBJECTIVE: To assess the impact of cannabis use as secondary drug on mortality of patients with other major substance use disorders. PARTICIPANTS: Patients with opiate, cocaine, or alcohol dependence admitted to detoxification from 2001 to 2010 at a teaching hospital in Badalona, Spain. MAIN MEASUREMENTS: Sociodemographic characteristics, drug use, medical comorbidities, and urine drug screens were obtained at admission...
October 6, 2016: Journal of Addiction Medicine
Rayna B Hirst, Kaitlyn R Young, Louise M Sodos, Robert E Wickham, Mitch Earleywine
INTRODUCTION: While many studies suggest that regular cannabis use leads to deficits in cognitive functioning, particularly in memory, few have measured effort put forth during testing, and none have examined this as a potential mediator. Both age of onset of regular cannabis use and frequency of use have been linked to increased risk of memory deficits. The present study sought to determine whether effort mediated the relationship between frequency or age of onset of cannabis use and learning and memory performance...
October 18, 2016: Journal of Clinical and Experimental Neuropsychology
Torbjörn U C Järbe, Jimit Girish Raghav
The phenomenon of consuming synthetic cannabinoids ("Spice") for recreational purposes is a fairly recent trend. However, consumption of cannabis dates back millennia, with numerous accounts written on the experience of its consumption, and thousands of scientific reports published on the effects of its constituents in laboratory animals and humans. Here, we focus on consolidating the scientific literature on the effects of "Spice" compounds in various behavioral assays, including assessing abuse liability, tolerance, dependence, withdrawal, and potential toxicity...
October 18, 2016: Current Topics in Behavioral Neurosciences
Cristina Casajuana, Hugo López-Pelayo, María Mercedes Balcells, Laia Miquel, Lídia Teixidó, Joan Colom, Antoni Gual
INTRODUCTION: Assessing cannabis consumption remains complex due to no reliable registration systems. We tested the likelihood of establishing a Standard Joint Unit (SJU) which considers the main cannabinoids with implication on health through a naturalistic approach.  Methodology. Pilot study with current cannabis users of four areas of Barcelona: universities, nightclubs, out-patient mental health service, and cannabis associations. We designed and administered a questionnaire on cannabis use-patterns and determined the willingness to donate a joint for analysis...
October 7, 2016: Adicciones
Arturo Álvarez, Juan F Gamella, Iván Parra
First, this paper estimates the dimensions of the market for cannabis in Spain using data on the extent of consumption and the main patterns of use of consumers. Then the paper reviews the hypothetical production and distribution costs of these drugs in different production regimes under different legal conditions. The review shows that current prices of cannabis in the illegal market could be notably reduced if production and distribution of cannabis were decriminalized and even more if they were performed by legal enterprises...
October 7, 2016: Adicciones
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