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https://www.readbyqxmd.com/read/29333902/patterns-of-nps-use-and-risk-reduction-in-slovenia
#1
Matej Sande, Mina Paš, Klara Nahtigal, Simona Šabić
BACKGROUND: The following study presents factors influencing the decision to use/not to use new psychoactive substances (NPS), various patterns of NPS use, the problems experienced by users, and the methods for reducing the risks associated with NPS use. OBJECTIVES: The study seeks to provide an in-depth look into the characteristics of NPS use and support the planning of targeted interventions in the field of NPS. METHODS: The study involved 19 in-depth interviews carried out with 25 individuals divided into three subsamples in order to gain insight into the various experiences of NPS users...
January 15, 2018: Substance Use & Misuse
https://www.readbyqxmd.com/read/29330986/use-of-psychoactive-drugs-among-medical-undergraduates-in-abbottabad
#2
Haq Nawaz, Aftab Alam Khan, Saima Bukhari
BACKGROUND: Psychoactive substance abuse is prevalent among medical undergraduates of Pakistan, India & Western countries which can adversely affect the physical & psychological grooming of a medical undergraduate thus threatening to compromise their role as future physicians & health-care providers in the society. The objective of the present cross-sectional study was to explore the prevalence and patterns of psychoactive substance/drug consumption among undergraduate students of a public sector medical college in Abbottabad...
October 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/29329763/efficacy-and-safety-of-varenicline-for-smoking-cessation-in-people-living-with-hiv-in-france-anrs-144-inter-activ-a-randomised-controlled-phase-3-clinical-trial
#3
Patrick Mercié, Julie Arsandaux, Christine Katlama, Samuel Ferret, Aurélie Beuscart, Christian Spadone, Claudine Duvivier, Jacques Reynes, Nathalie Wirth, Laetitia Moinot, Antoine Bénard, David Zucman, Xavier Duval, Jean-Michel Molina, Bruno Spire, Catherine Fagard, Geneviève Chêne
BACKGROUND: Tobacco smoking is common in people living with HIV, but high-quality evidence on interventions for smoking cessation is not available in this population. We aimed to assess the efficacy and safety of varenicline with counselling to aid smoking cessation in people living with HIV. METHODS: The ANRS 144 Inter-ACTIV randomised, parallel, double-blind, multicentre, placebo-controlled phase 3 trial was done at 30 clinical hospital sites in France. People living with HIV who had smoked at least ten cigarettes per day for 1 year or longer, were motivated to stop smoking, were not dependent on another psychoactive substance, and had no history of depression or suicide attempt were eligible...
January 9, 2018: Lancet HIV
https://www.readbyqxmd.com/read/29323557/neuropsychological-assessment-of-412-hiv-infected-individuals-in-s%C3%A3-o-paulo-brazil
#4
Maria Rita Polo Gascón, José Ernesto Vidal, Yolanda Marques Mazzaro, Jerusa Smid, Rosa Maria Nascimento Marcusso, Claudio Garcia Capitão, Elizeu Macedo Coutinho, Glaucia Rosana Guerra Benute, Mara Cristina Souza De Lucia, Augusto César Penalva de Oliveira
HIV-associated neurocognitive disorders (HAND) remain frequent even among individuals receiving combined antiretroviral therapy (cART). In addition, HAND may adversely affect the quality of life and adherence to cART. There is scarce epidemiological information about HAND in Latin America. This cross-sectional study recruited HIV-infected patients from a tertiary teaching institution in São Paulo, Brazil, between May 2013 and February 2015. The patients were adults with at least 4 years of education and patients with current neurological or psychiatric diseases were excluded...
January 2018: AIDS Patient Care and STDs
https://www.readbyqxmd.com/read/29322265/the-role-of-sphingolipids-in-psychoactive-drug-use-and-addiction
#5
REVIEW
Liubov S Kalinichenko, Erich Gulbins, Johannes Kornhuber, Christian P Müller
Psychoactive drug use is a common behavior in many societies worldwide, frequently associated with drug instrumentalization. Regular use may develop into drug addiction, which is a severe psychiatric disorder with multiple pathological effects to virtually all organ systems. Treatment strategies for addiction are often insufficient with no broadly working pharmaco-treatment available. Recently, lipids, and particularly sphingolipids, have been considered as new mediators in the pathogenic pathways and as possible therapeutic targets for the treatment of addictive states...
January 10, 2018: Journal of Neural Transmission
https://www.readbyqxmd.com/read/29321937/marijuana-bong-pseudomonas-lung-infection-a-detrimental-recreational-experience
#6
Agni Nhirmal Kumar, Chun Ian Soo, Boon Hau Ng, Tidi Hassan, Andrea Yu-Lin Ban, Roslina Abdul Manap
The use of Cannabis sativa, also known as marijuana, is believed to have dated back to thousands of years B.C. More than 200 decades later, it remains a popular recreational psychoactive substance that can be smoked through a water pipe. We report a case of marijuana smoking via a "bong" device, which has resulted in severe Pseudomonas aeruginosa necrotizing pneumonia treated with conservative medical therapy. This case highlights the importance of recognizing that life-threatening pneumonia can potentially be linked to marijuana and "bong" usage...
February 2018: Respirology Case Reports
https://www.readbyqxmd.com/read/29317072/betacaryophyllene-a-phytocannabinoid-as-potential-therapeutic-modality-for-human-sepsis
#7
Angel Meza, Christian Lehmann
Sepsis is a clinical condition resulting from a dysregulated immune response to an infection that leads to organ dysfunction. Despite numerous efforts to optimize treatment, sepsis remains to be the main cause of death in most intensive care units. The endogenous cannabinoid system (ECS) plays an important role in inflammation. Cannabinoid receptor 2 (CB2R) activation is immunosuppressive, which might be beneficial during the hyper-inflammatory phase of sepsis. Beta-caryophyllene (BCP) is a non-psychoactive natural cannabinoid (phytocannabinoid) found in Cannabis sativa and in essential oils of spices and food plants, that acts as a selective agonist of CB2R...
January 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29314750/phase-i-metabolism-of-the-recently-emerged-synthetic-cannabinoid-cumyl-pegaclone-and-detection-in-human-urine-samples
#8
Lukas Mogler, Maurice Wilde, Laura M Huppertz, Georg Weinfurtner, Florian Franz, Volker Auwärter
Indole, indazole or azaindole based synthetic cannabinoids (SCs), bearing a cumyl substituent are a widespread, recreationally used subgroup of new psychoactive substances (NPS). The latest cumyl-derivative, CUMYL-PEGACLONE, emerged in December 2016 on the German drug market. The substance features a novel γ-carboline core structure, which is most likely synthesized to bypass generic legislative approaches to control SCs by prohibiting distinct core structures. Using liquid chromatography tandem mass spectrometry and liquid chromatography high resolution mass spectrometry techniques, the main in vivo phase I metabolites of this new substance were detected...
January 3, 2018: Drug Testing and Analysis
https://www.readbyqxmd.com/read/29314710/different-in-vitro-and-in-vivo-tools-for-elucidating-the-human-metabolism-of-alpha-cathinone-derived-drugs-of-abuse
#9
Sascha K Manier, Lilian H J Richter, Jan Schäper, Hans H Maurer, Markus R Meyer
In vitro and in vivo experiments are widely used for studying the metabolism of new psychoactive substances (NPS). The availability of such data is required for toxicological risk assessments and development of urine screening approaches. This study investigated the in vitro metabolism of the five pyrrolidinophenone-derived NPS alpha-pyrrolidinobutyrophenone (alpha-PBP), alpha-pyrrolidinopentiothiophenone (alpha-PVT), alpha-pyrrolidinohexanophenone (alpha-PHP), alpha-pyrrolidinoenanthophenone (alpha-PEP, PV8), and alpha-pyrrolidinooctanophenone (alpha-POP, PV9)...
January 4, 2018: Drug Testing and Analysis
https://www.readbyqxmd.com/read/29313245/effect-of-post-traumatic-stress-disorder-on-cognitive-function-and-covert-hepatic-encephalopathy-diagnosis-in-cirrhotic-veterans
#10
Thomas K Burroughs, James B Wade, Michael S Ellwood, Andrew Fagan, Douglas M Heuman, Michael Fuchs, Jasmohan S Bajaj
BACKGROUND: In veterans, post-traumatic stress disorder (PTSD) is often associated with substance abuse, which in turn can lead to cirrhosis. Cirrhotic patients are prone to cognitive impairment, which is typically due to covert hepatic encephalopathy (CHE), but can also be affected by PTSD. The aim was to define the impact of PTSD on cognitive performance and the diagnosis of CHE in cirrhotic patients. METHODS: Outpatient veterans with cirrhosis underwent two separate modalities for CHE cognitive testing [Psychometric Hepatic Encephalopathy Scale (PHES) and Inhibitory Control Test (ICT)]...
January 8, 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29313138/do-psychoactive-drugs-have-a-therapeutic-role-in-compulsivity-studies-on-schedule-induced-polydipsia
#11
Elena Martín-González, Ángeles Prados-Pardo, Santiago Mora, Pilar Flores, Margarita Moreno
RATIONALE: Clinical studies have shown that some psychoactive recreational drugs have therapeutic applications in anxiety, depression, and schizophrenia. However, to date, there are few studies on the therapeutic potential efficacy of recreational drugs in compulsive neuropsychiatric disorders. OBJECTIVES: We explored the therapeutic potential of different psychoactive and psychedelic drugs in a preclinical model of compulsive behavior. METHODS: Outbred male Wistar rats were selected as either high (HD) or low (LD) drinkers according to their behavior in schedule-induced polydipsia (SIP)...
January 8, 2018: Psychopharmacology
https://www.readbyqxmd.com/read/29311050/detecting-novel-and-emerging-drug-terms-using-natural-language-processing-a-social-media-corpus-study
#12
Sean S Simpson, Nikki Adams, Claudia M Brugman, Thomas J Conners
BACKGROUND: With the rapid development of new psychoactive substances (NPS) and changes in the use of more traditional drugs, it is increasingly difficult for researchers and public health practitioners to keep up with emerging drugs and drug terms. Substance use surveys and diagnostic tools need to be able to ask about substances using the terms that drug users themselves are likely to be using. Analyses of social media may offer new ways for researchers to uncover and track changes in drug terms in near real time...
January 8, 2018: JMIR Public Health and Surveillance
https://www.readbyqxmd.com/read/29309770/a-sub-set-of-psychoactive-effects-may-be-critical-to-the-behavioral-impact-of-ketamine-on-cocaine-use-disorder-results-from-a-randomized-controlled-laboratory-study
#13
REVIEW
E Dakwar, E V Nunes, C L Hart, M C Hu, R W Foltin, F R Levin
Efforts to translate sub-anesthetic ketamine infusions into widespread clinical use have centered around developing medications with comparable neurobiological activity, but with attenuated psychoactive effects so as to minimize the risk of behavioral toxicity and abuse liability. Converging lines of research, however, suggest that some of the psychoactive effects of sub-anesthetic ketamine may have therapeutic potential. Here, we assess whether a subset of these effects - the so-called mystical-type experience - mediates the effect of ketamine on craving and cocaine use in cocaine dependent research volunteers...
January 5, 2018: Neuropharmacology
https://www.readbyqxmd.com/read/29309651/suspect-screening-using-lc-qqtof-is-a-useful-tool-for-detecting-drugs-in-biological-samples
#14
Jennifer M Colby, Katie L Thoren, Kara L Lynch
High-resolution mass spectrometers (HRMS), including quadrupole time of flight mass analyzers (QqTOF), are becoming more prevalent as screening tools in clinical and forensic toxicology laboratories. Among other advantages, HRMS instruments can collect untargeted, full-scan mass spectra. These datasets can be analyzed retrospectively using a combination of techniques, which can extend the drug detection capabilities. Most laboratories using HRMS in production settings perform untargeted data collection, but analyze data in a targeted manner...
January 4, 2018: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/29308799/an-enzymatic-advance-in-nicotine-cessation-therapy
#15
Song Xue, Marsida Kallupi, Bin Zhou, Lauren C Smith, Pedro O Miranda, Olivier George, Kim D Janda
A nicotine-degrading enzyme termed NicA2 was altered (NicA2-J1) through fusion of an albumin binding domain to increase its half-life. Examination of NicA2-J1 in vivo demonstrated a complete blockade of brain nicotine access, which in turn blunted nicotine's psychoactive effects. These data further support development of pharmacokinetic nicotine cessation therapeutics.
January 8, 2018: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29307505/practical-considerations-in-medical-cannabis-administration-and-dosing
#16
REVIEW
Caroline A MacCallum, Ethan B Russo
Cannabis has been employed medicinally throughout history, but its recent legal prohibition, biochemical complexity and variability, quality control issues, previous dearth of appropriately powered randomised controlled trials, and lack of pertinent education have conspired to leave clinicians in the dark as to how to advise patients pursuing such treatment. With the advent of pharmaceutical cannabis-based medicines (Sativex/nabiximols and Epidiolex), and liberalisation of access in certain nations, this ignorance of cannabis pharmacology and therapeutics has become untenable...
January 4, 2018: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/29307079/functional-changes-of-orexinergic-reaction-to-psychoactive-substances
#17
REVIEW
Vincenzo Monda, Monica Salerno, Francesco Sessa, Renato Bernardini, Anna Valenzano, Gabriella Marsala, Christian Zammit, Roberto Avola, Marco Carotenuto, Giovanni Messina, Antonietta Messina
It is becoming increasingly apparent the importance of the central nervous system (CNS) as the major contributor to the regulation of systemic metabolism. Antipsychotic drugs are used often to treat several psychiatric disorders, including schizophrenia and bipolar disorder However, antipsychotic drugs prescription, particularly the second-generation ones (SGAs), such as clozapine and olanzapine, is related to a considerable weight gain which usually leads to obesity. The aim of this paper is to assess the influence of orexin A on sympathetic and hyperthermic reactions to several neuroleptic drugs...
January 6, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29306167/wastewater-based-epidemiology-and-enantiomeric-profiling-for-drugs-of-abuse-in-south-african-wastewaters
#18
E Archer, E Castrignanò, B Kasprzyk-Hordern, G M Wolfaardt
The current study is aimed to introduce a wastewater-based epidemiology (WBE) approach for the first time on the African continent where substance abuse data is limited. The study included the quantification of several drugs of abuse (DOA) in raw wastewater samples. Quantification of urinary metabolites as drug target residues (DTR), as well as enantiomeric profiling of chiral DOA was performed to distinguish between consumption and direct disposal into sewage. Monitoring campaigns were undertaken at two South African wastewater treatment works (WWTWs) located within two provinces of the country...
January 3, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29302228/cannabis-cannabinoids-and-health
#19
Genevieve Lafaye, Laurent Karila, Lisa Blecha, Amine Benyamina
Cannabis (also known as marijuana) is the most frequently used illicit psychoactive substance in the world. Though it was long considered to be a "soft" drug, studies have proven the harmful psychiatric and addictive effects associated with its use. A number of elements are responsible for the increased complications of cannabis use, including the increase in the potency of cannabis and an evolution in the ratio between the two primary components, Δ9-tetrahydrocannabinol (Δ9-THC) and cannabidiol (toward a higher proportion of Δ9-THC), Synthetic cannabinoid (SC) use has rapidly progressed over the last few years, primarily among frequent cannabis users, because SCs provide similar psychoactive effects to cannabis...
September 2017: Dialogues in Clinical Neuroscience
https://www.readbyqxmd.com/read/29302196/when-good-times-go-bad-managing-legal-high-complications-in-the-emergency-department
#20
REVIEW
Charles R Caffrey, Patrick M Lank
Patients can use numerous drugs that exist outside of existing regulatory statutes in order to get "legal highs." Legal psychoactive substances represent a challenge to the emergency medicine physician due to the sheer number of available agents, their multiple toxidromes and presentations, their escaping traditional methods of analysis, and the reluctance of patients to divulge their use of these agents. This paper endeavors to cover a wide variety of "legal highs," or uncontrolled psychoactive substances that may have abuse potential and may result in serious toxicity...
2018: Open Access Emergency Medicine: OAEM
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