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https://www.readbyqxmd.com/read/28722422/first-time-view-on-human-metabolome-changes-after-a-single-intake-of-3-4-methylenedioxymethamphetamine-mdma-in-healthy-placebo-controlled-subjects
#1
Martina I Boxler, Matthias E Liechti, Yasmin Schmid, Thomas Kraemer, Andrea E Steuer
3,4-methylenedioxymethamphetamine (MDMA; 'ecstasy') is widely consumed recreationally. Currently little is known about its effects on the human metabolome. Mapping biochemical changes after drug exposure can complement traditional approaches by revealing potential biomarkers of organ toxicity or discovering new metabolomic features in a time- and dose-dependent manner. We aimed to analyze for the first time plasma samples from a randomized, double-blind, placebo-controlled crossover study in healthy adults to explore changes in endogenous plasma metabolites following a single intake of MDMA...
July 19, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28716314/safety-and-efficacy-of-ebselen-for-the-prevention-of-noise-induced-hearing-loss-a-randomised-double-blind-placebo-controlled-phase-2-trial
#2
Jonathan Kil, Edward Lobarinas, Christopher Spankovich, Scott K Griffiths, Patrick J Antonelli, Eric D Lynch, Colleen G Le Prell
BACKGROUND: Noise-induced hearing loss is a leading cause of occupational and recreational injury and disease, and a major determinant of age-related hearing loss. No therapeutic agent has been approved for the prevention or treatment of this disorder. In animal models, glutathione peroxidase 1 (GPx1) activity is reduced after acute noise exposure. Ebselen, a novel GPx1 mimic, has been shown to reduce both temporary and permanent noise-induced hearing loss in preclinical studies. We assessed the safety and efficacy of ebselen for the prevention of noise-induced hearing loss in young adults in a phase 2 clinical trial...
July 14, 2017: Lancet
https://www.readbyqxmd.com/read/28714411/pharmacology-and-literature-review-based-on-related-death-and-non-fatal-case-reports-of-the-benzofurans-and-benzodifurans-designer-drugs
#3
Bernardino Barceló Martín, Isabel Gomila
BACKGROUND: Benzofurans and benzodifurans are two groups of psychoactive substances that had originally been synthesized for research purpose. Benzofurans' structure is quite similar to the known recreational drug 3,4-methylenedioxymethamphetamine together with its active metabolite 3,4-methylenedioxyamphetamine. Benzodifurans are closely related to phenethylamines, but have more hallucinogens effects and much longer duration of action. This study aims to review the accessible evidence-based literature on benzofurans and benzodifurans pharmacology and toxicology...
July 14, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28713291/an-expanding-world-of-novel-psychoactive-substances-opioids
#4
REVIEW
Jolanta B Zawilska
The abuse of novel psychoactive substances (NPS) has been increasing dramatically worldwide since late 2000s. By the end of 2015, more than 560 NPS had been reported to the European Monitoring Centre for Drugs and Drug Addiction. Although the most popular compounds are synthetic cannabinoids and psychostimulatory derivatives of cathinone (so-called β-keto-amphetamines), novel synthetic opioids have recently emerged on the recreational drug market. They include fentanyl (a potent narcotic analgesic) and its analogs (e...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28708873/impact-of-early-cart-on-hiv-blood-and-semen-compartments-at-the-time-of-primary-infection
#5
Antoine Chéret, Christine Durier, Adeline Mélard, Mickaël Ploquin, Julia Heitzmann, Camille Lécuroux, Véronique Avettand-Fenoël, Ludivine David, Gilles Pialoux, Jean-Marie Chennebault, Michaela Müller-Trutwin, Cécile Goujard, Christine Rouzioux, Laurence Meyer
BACKGROUND: HIV-infected cells in semen facilitate viral transmission. We studied the establishment of HIV reservoirs in semen and blood during PHI, along with systemic immune activation and the impact of early cART. METHODS: Patients in the ANRS-147-OPTIPRIM trial received two years of early cART. Nineteen patients of the trial were analyzed, out of which 8 had acute PHI (WB ≤1 Ab). We quantified total cell-associated (ca) HIV-DNA in blood and semen and HIV-RNA in blood and semen plasma samples, collected during PHI and at 24 months of treatment...
2017: PloS One
https://www.readbyqxmd.com/read/28708203/medical-treatment-of-erectile-dysfunction-too-many-medical-prescriptions
#6
Paolo Capogrosso, Eugenio Ventimiglia, Davide Oreggia, Andrea Salonia, Francesco Montorsi
Erectile dysfunction (ED) is a worldwide commonly reported condition; epidemiological data showed a prevalence ranging from 2.3 to 53.4% within different population subsets. In this context, the advent of phosphodiesterase type 5 inhibitors (PDE5is) in the second mid of 1990s has deeply changed the treatment scenario of this bothersome condition. Being user-friendly compounds with an excellent overall safety profile, PDE5is emerged as the first-line treatment for ED, thus overcoming topical alprostadil and intracavernous injections (ICIs)...
July 5, 2017: Urologia
https://www.readbyqxmd.com/read/28707583/cannabis-an-overview-of-its-adverse-acute-and-chronic-effects-and-their-implications
#7
Talitha C Ford, Amie C Hayley, Luke A Downey, Andrew C Parrott
In many communities, cannabis is perceived as a low-risk drug, leading to political lobbying to decriminalise its use. However, acute and chronic cannabis use has been shown to be harmful to several aspects of psychological and physical health, such as mood states, psychiatric outcomes, neurocognition, driving and general health. Furthermore, cannabis is highly addictive, and the adverse effects of withdrawal can lead to regular use. These in turn have adverse implications for public safety and health expenditure...
July 12, 2017: Current Drug Abuse Reviews
https://www.readbyqxmd.com/read/28704769/characterizing-marijuana-concentrate-users-a-web-based-survey
#8
Raminta Daniulaityte, Francois R Lamy, Monica Barratt, Ramzi W Nahhas, Silvia S Martins, Edward W Boyer, Amit Sheth, Robert G Carlson
AIMS: The study seeks to characterize marijuana concentrate users, describe reasons and patterns of use, perceived risk, and identify predictors of daily/near daily use. METHODS: An anonymous web-based survey was conducted (April-June 2016) with 673 US-based cannabis users recruited via the Bluelight.org web-forum and included questions about marijuana concentrate use, other drugs, and socio-demographics. Multivariable logistic regression analyses were conducted to identify characteristics associated with greater odds of lifetime and daily use of marijuana concentrates...
June 29, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28703616/the-protective-behavioral-strategies-for-marijuana-scale-further-examination-using-item-response-theory
#9
Eric R Pedersen, Wenjing Huang, Robert D Dvorak, Mark A Prince, Justin F Hummer
Given recent state legislation legalizing marijuana for recreational purposes and majority popular opinion favoring these laws, we developed the Protective Behavioral Strategies for Marijuana scale (PBSM) to identify strategies that may mitigate the harms related to marijuana use among those young people who choose to use the drug. In the current study, we expand on the initial exploratory study of the PBSM to further validate the measure with a large and geographically diverse sample (N = 2,117; 60% women, 30% non-White) of college students from 11 different universities across the United States...
July 13, 2017: Psychology of Addictive Behaviors: Journal of the Society of Psychologists in Addictive Behaviors
https://www.readbyqxmd.com/read/28686088/changing-epidemiology-of-aa-amyloidosis-clinical-observations-over-25-years-at-a-single-national-referral-centre
#10
Thirusha Lane, Jennifer H Pinney, Janet A Gilbertson, David F Hutt, Dorota M Rowczenio, Shameem Mahmood, Sajitha Sachchithanantham, Marianna Fontana, Taryn Youngstein, Candida C Quarta, Ashutosh D Wechalekar, Julian D Gillmore, Philip N Hawkins, Helen J Lachmann
OBJECTIVE: Systemic AA amyloidosis is a serious complication of chronic inflammation; however, there are relatively few published data on its incidence. We investigated the changing epidemiology of AA amyloidosis over a 25-year period at a single national referral centre. METHODS: We conducted a retrospective study of all patients diagnosed with AA amyloidosis who had attended the centre between 1990 and 2014 inclusive. Six hundred and twenty-five patients were studied in three cohorts: C1: 1990-1997; C2: 1998-2006; C3: 2007-2014...
July 7, 2017: Amyloid: the International Journal of Experimental and Clinical Investigation
https://www.readbyqxmd.com/read/28681613/the-toxicological-significance-of-post-mortem-drug-concentrations-in-bile
#11
Robin E Ferner, Jeffrey K Aronson
CONTEXT: Some authors have proposed that post-mortem drug concentrations in bile are useful in estimating concentrations in blood. Both The International Association of Forensic Toxicologists (TIAFT) and the US Federal Aviation Administration recommend that samples of bile should be obtained in some circumstances. Furthermore, standard toxicological texts compare blood and bile concentrations, implying that concentrations in bile are of forensic value. AIM: To review the evidence on simultaneous measurements of blood and bile drug concentrations reported in the medical literature...
July 6, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28680955/second-line-treatments-for-advanced-gastric-cancer-a-network-meta-analysis-of-overall-survival-using-parametric-modelling-methods
#12
Rebecca C Harvey
INTRODUCTION: Advanced gastric cancer (AGC) is one of the most common forms of cancer and remains difficult to cure. There is currently no recommended therapy for second-line AGC in the UK despite the availability of various interventions. This paper aims to compare different interventions for treatment of second-line AGC using more complex methods to estimate relative efficacy, fitting various parametric models and to compare results to those published adopting conventional methods of synthesis...
2017: Oncology and Therapy
https://www.readbyqxmd.com/read/28677876/human-urinary-metabolic-patterns-of-the-designer-benzodiazepines-flubromazolam-and-pyrazolam-studied-by-liquid-chromatography-high-resolution-mass-spectrometry
#13
Madeleine Pettersson Bergstrand, Markus R Meyer, Olof Beck, Anders Helander
Over the past ~8 years, hundreds of unregulated new psychoactive substances (NPS) of various chemical categories have been introduced as recreational drugs through mainly open online trade. This study was performed to further investigate the human metabolic pattern of the NPS, or designer benzodiazepines flubromazolam and pyrazolam, and to propose analytical targets for urine drug testing of these substances. The urine samples originated from patient samples confirmed by liquid chromatography-high-resolution tandem mass spectrometry (LC-HRMS/MS) analysis to contain flubromazolam or pyrazolam...
July 5, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28676005/opioids-in-the-frame-of-new-psychoactive-substances-network-a-complex-pharmacological-and-toxicological-issue
#14
Ludovic Ventura, Félix Carvalho, Ricardo Jorge Dinis-Oliveira
New psychoactive substances (NPS), often referred to as "legal highs" or "designer drugs", are derivatives and analogues of existing psychoactive drugs that are introduced in the recreational market to circumvent existing legislation on drugs of abuse. Due to inefficient monitoring techniques, as well as limited knowledge concerning long-time effects of NPS, further studies regarding such compounds are constantly required. This systematic review aims to gather the state of the art regarding chemical, molecular pharmacology and toxicological information of opioid class of NPS...
July 4, 2017: Current Molecular Pharmacology
https://www.readbyqxmd.com/read/28672699/qualitative-screening-for-new-psychoactive-substances-in-wastewater-collected-during-a-city-festival-using-liquid-chromatography-coupled-to-high-resolution-mass-spectrometry
#15
Ana Causanilles, Juliet Kinyua, Christoph Ruttkies, Alexander L N van Nuijs, Erik Emke, Adrian Covaci, Pim de Voogt
The inclusion of new psychoactive substances (NPS) in the wastewater-based epidemiology approach presents challenges, such as the reduced number of users that translates into low concentrations of residues and the limited pharmacokinetics information available, which renders the choice of target biomarker difficult. The sampling during special social settings, the analysis with improved analytical techniques, and data processing with specific workflow to narrow the search, are required approaches for a successful monitoring...
June 26, 2017: Chemosphere
https://www.readbyqxmd.com/read/28657185/patterns-of-use-and-toxicity-of-new-para-halogenated-substituted-cathinones-4-cmc-clephedrone-4-cec-4-chloroethcatinone-and-4-bmc-brephedrone
#16
Marc Grifell, Mireia Ventura, Xoán Carbón, Pol Quintana, Liliana Galindo, Álvaro Palma, Ivan Fornis, Cristina Gil, Magi Farre, Marta Torrens
OBJECTIVE: This paper aims to present results of the analysis of clephedrone (4-CMC), 4-chloroethcathinone (4-CEC), and brephedrone (4-BMC) on recreational drug markets and a systematic review of all the available information concerning these substances. MATERIAL AND METHODS: Samples collected by the drug checking service of the Spanish harm reduction NGO-Energy Control were analyzed and systematic research was conducted. Between June 2014 and October 2016, 1,471 samples with at least one NPS were analyzed, 397 of which contained cathinones...
May 2017: Human Psychopharmacology
https://www.readbyqxmd.com/read/28652086/commentary-navigating-the-complexities-of-marijuana
#17
Susan R B Weiss, Eric M Wargo
Science needs to drive our thinking as we navigate a new legislative environment in which many Americans have access to marijuana for therapeutic or recreational use. With the responsibility to fund, conduct, and make use of the research on marijuana, and understand the impacts of new policies, comes the obligation of not thinking in simplistic, black-and-white terms about this substance. The drug's unique harms include neurodevelopmental impacts that may be long lasting or permanent, yet some evidence suggests the drug may benefit people with certain medical conditions (e...
June 23, 2017: Preventive Medicine
https://www.readbyqxmd.com/read/28650230/get-real-evaluation-of-a-community-level-hiv-prevention-intervention-for-young-msm-who-engage-in-episodic-substance-use
#18
COMPARATIVE STUDY
Jennifer Lauby, Lin Zhu, Mary Milnamow, Heather Batson, Lisa Bond, William Curran-Groome, Lee Carson
Young men who have sex with men (YMSM) have high rates of recreational drug use and binge drinking that are related to increases in unprotected sex and HIV risk. We describe the development of a community-level intervention focused on MSM ages 15 to 29 who identify as Black or White and who reported episodic use of alcohol and/or drugs. Intervention content included culturally-relevant role model stories and peer outreach. Outcome measures, including number of partners and a risk score indicating risk for HIV from protected or unprotected insertive or receptive anal sex, were examined over 36 months in a sample of YMSM in Philadelphia, the intervention site, and Baltimore, the comparison site...
June 2017: AIDS Education and Prevention: Official Publication of the International Society for AIDS Education
https://www.readbyqxmd.com/read/28646702/alcohol-and-recreational-drug-use-in-young-adults-with-type-1-diabetes
#19
REVIEW
Adam Pastor, Jennifer Conn, Jessie Teng, Casey L O'Brien, Margaret Loh, Lisa Collins, Richard MacIsaac, Yvonne Bonomo
Alcohol and other recreational drug use reaches peak prevalence in young adulthood, including for those with chronic medical conditions such as type 1 diabetes. This review summarises the current literature on the patterns of substance use amongst young adults with type 1 diabetes and the mechanisms through which alcohol and recreational drugs may affect diabetes related health outcomes. These include the direct physical effect of intoxication, as well as the effects of alcohol and drugs on mental health and glucose metabolism...
June 11, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28632075/-is-marijuana-even-a-drug-a-qualitative-study-of-how-teens-view-marijuana-use-and-why-they-use-it
#20
Bettina Friese
This qualitative study examines how youth in the San Francisco Bay Area perceive marijuana and their motives for using or not using marijuana. Current regular users were more likely to perceive marijuana smoking as an enjoyable activity, comparable to a hobby or sport. Current occasional users commonly reported smoking marijuana when it was offered to them, on special occasions, and sometimes as a result of not wanting to be left out. Most former regular users reported quitting marijuana use due to getting into trouble, being ordered into drug treatment and/or being drug tested...
February 26, 2017: Journal of Psychoactive Drugs
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