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https://www.readbyqxmd.com/read/28430384/pharmacokinetics-of-concentrated-naloxone-nasal-spray-over-first-30%C3%A2-minutes-post-dosing-analysis-of-suitability-for-opioid-overdose-reversal
#1
Gill Mundin, Rebecca McDonald, Kevin Smith, Stephen Harris, John Strang
BACKGROUND AND AIMS: Lack of non-injectable naloxone formulations has impeded widespread take-home provision for the prevention of heroin/opioid overdose deaths. For non-injectable formulations that are finally being investigated, rapid onset of action and sufficient bioavailability will be vital. We present analysis of data from a study of concentrated naloxone nasal spray formulations. Our aims are: to assess 1) pharmacokinetic properties and 2) suitability for overdose reversal in terms of naloxone absorption within 30 minutes post-dosing...
April 21, 2017: Addiction
https://www.readbyqxmd.com/read/28429885/intravenous-self-administration-of-benzydamine-a-non-steroidal-anti-inflammatory-drug-with-a-central-cannabinoidergic-mechanism-of-action
#2
Riccardo Avvisati, Maria Meringolo, Emiliana Stendardo, Elisa Malavasi, Silvia Marinelli, Aldo Badiani
Benzydamine (BZY) is a non-steroidal anti-inflammatory drug used for the topical treatment of inflammations of the oral and vaginal mucosae. Virtually nothing is known about the central pharmacological actions of BZY. Yet there are reports of voluntary systemic overdosage of BZY in drug addicts, resulting in a euphoric, hallucinatory state. In the present study, we investigated the reinforcing properties of BZY in a rat self-administration paradigm. We found that BZY has a powerful reinforcing effect and that this effect is greatly facilitated in animals that already had substance experience, having previously self-administered heroin and cocaine, indicating cross sensitization between BZY and other common drugs of abuse...
April 21, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28428748/resting-state-neuroimaging-and-neuropsychological-findings-in-opioid-use-disorder-during-abstinence-a-review
#3
REVIEW
Hada Fong-Ha Ieong, Zhen Yuan
Dependence to opiates, including illicit heroin and prescription pain killers, and treatment of the opioid use disorder (OUD) have been longstanding problems over the world. Despite intense efforts to scientific investigation and public health care, treatment outcomes have not significantly improved for the past 50 years. One reason behind the continuing use of heroin worldwide despite such efforts is its highly addictive nature. Brain imaging studies over the past two decades have made significant contribution to the understanding of the addictive properties as to be due in part to biological processes, specifically those in the brain structure and function...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28426852/an-outbreak-of-endogenous-fungal-endophthalmitis-among-intravenous-drug-abusers-in-new-england
#4
Aubrey R Tirpack, Jay S Duker, Caroline R Baumal
Importance: Intravenous drug abuse (IVDA) is a known risk factor for endogenous fungal endophthalmitis (EFE), a severe intraocular infection caused by hematogenous seeding of mycotic organisms to the eye. Reporting significant increases in heroin-related deaths since 2014, the New England region is in the midst of an opioid crisis that has led to a substantial increase in patients at risk for this vision-threatening disease. Objective: To present an update on characteristics, management, and visual outcomes in patients with EFE...
April 20, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28422859/the-levels-of-triglyceride-and-total-cholesterol-in-methamphetamine-dependence
#5
Meijuan Zhang, Dezhao Lv, Wu Zhou, Lili Ji, Beibei Zhou, Han Chen, Yingying Gu, Jiyun Zhao, Jincai He
The serum triglyceride (TG) and total cholesterol (TC) levels have been reported altered in the traditional drug-dependence (such as marijuana and heroin). However, studies assessing the relationships among serum TC, TG, and methamphetamine (MA)-dependence have not been described well. In this study, our aim is to explore the serum TG and TC levels in large sample of MA-dependent patients. A retrospective study was conducted in 938 MA-dependent patients who were recruited between February 2, 2008 and March 11, 2013, with social characteristics and drug-dependence history (duration of MA use, routes of drug administration, and daily dose were collected)...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28422290/heroin-related-deaths-from-the-hennepin-county-medical-examiner-s-office-from-2004-through-2015
#6
Sara A Love, Jessica Lelinski, Julie Kloss, Owen Middleton, Fred S Apple
Over the past two decades, prescription and illicit opioid use has led to changes in public health policy to address the increasing number of opioid-related deaths. The purpose of this study was to review cases from Hennepin County Medical Examiner's Office between 2004 through 2015 where heroin was listed as a significant contributor or as the cause of death. We identified 322 heroin-related deaths, which were predominantly male (255; 79%). 6-Monoacetylmorphine (6-MAM) median (range) concentrations were as follows: blood (n = 7), 0...
April 19, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28422138/abnormal-resting-state-functional-connectivity-in-the-orbitofrontal-cortex-of-heroin-users-and-its-relationship-with-anxiety-a-pilot-fnirs-study
#7
Hada Fong-Ha Ieong, Zhen Yuan
Drug addiction is widely linked to the orbitofrontal cortex (OFC), which is essential for regulating reward-related behaviors, emotional responses, and anxiety. Over the past two decades, neuroimaging has provided significant contributions revealing functional and structural alternations in the brains of drug addicts. However, the underlying neural mechanism in the OFC and its correlates with drug addiction and anxiety still require further elucidation. We first presented a pilot investigation to examine local networks in OFC regions through resting-state functional connectivity (rsFC) using functional near-infrared spectroscopy (fNIRS) from eight abstinent addicts in a heroin-dependent group (HD) and seven subjects in a control group (CG)...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28421529/suppression-of-methamphetamine-self-administration-by-ketamine-pre-treatment-is-absent-in-the-methylazoxymethanol-mam-rat-model-of-schizophrenia
#8
Jana Ruda-Kucerova, Zuzana Babinska, Tibor Stark, Vincenzo Micale
Ketamine may prove to be a potential candidate in treating the widespread drug addiction/substance abuse epidemic among patients with schizophrenia. Clinical studies have shown ketamine to reduce cocaine and heroin cravings. However, the use of ketamine remains controversial as it may exacerbate the symptoms of schizophrenia. Therefore, the aim of this study is to characterize the effects of ketamine on drug addiction in schizophrenia using the methylazoxymethanol (MAM) acetate rat model on operant IV methamphetamine (METH) self-administration...
April 18, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28413168/prevalence-of-hiv-hbv-and-hcv-and-related-risk-factors-amongst-male-homeless-people-in-lorestan-province-the-west-of-iran
#9
Amin Doosti-Irani, Hamid Mokhaeri, Ali Chegini Sharafi, Mohammad Reza Aghasadeghi, Morteza Hajimiragha, Mohammad Saki, Mohammad Hassan Kayedi, Ehsan Mostafavi
BACKGROUND: Homeless people are at a higher risk of blood-born infectious diseases. The aim of this study was to estimate the prevalence of HIV, HBV, HCV and related risk factors among male homeless people. STUDY DESIGN: A cross-sectional study. METHODS: This study was conducted in Khorramabad City, western Iran from January to June 2015. A pre-designed validated questionnaire was used to collect the data on behavioral and other potential risk factors...
March 11, 2017: Journal of Research in Health Sciences
https://www.readbyqxmd.com/read/28410961/heroin
#10
Sophia Valesca Görgens
No abstract text is available yet for this article.
April 11, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28406320/underestimated-impact-of-novel-psychoactive-substances-laboratory-confirmation-of-recreational-drug-toxicity-in-oslo-norway
#11
Odd Martin Vallersnes, Per Sverre Persett, Elisabeth Leere Øiestad, Ritva Karinen, Fridtjof Heyerdahl, Knut Erik Hovda
CONTEXT: Recreational drug toxicity is frequent. Availability of new psychoactive substances is steadily increasing. However, data with verified analyses from clinical settings are limited. To evaluate the impact of novel psychoactive substances (NPS) on recreational drug toxicity in Oslo, Norway, we analysed samples from a selection of patients. METHODS: All the patients presenting with recreational drug toxicity at the Oslo Accident and Emergency Outpatient Clinic (OAEOC) and at the Oslo University Hospital (OUH) were registered from April through September 2014...
April 13, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28403087/increased-bdnf-may-not-be-associated-with-cognitive-impairment-in-heroin-dependent-patients
#12
Xiaoqian Luan, Jingyan Tao, Jie Zhang, Ying Xie, Xiangyang Zhang, Hang Su, Jincai He
A growing number of evidence suggests that brain-derived neurotrophic factor (BDNF) plays an important part in modulating the activities on the basis of hippocampus neural plasticity, such as learning and memory. Heroin addiction has a series of cognitive impairments that may be associated with BDNF. In this study, we explored the association of BDNF with cognitive function in heroin-dependent patients.We enrolled 86 heroin-dependent patients and 238 normal control subjects and examined their cognition by the repeatable battery for the assessment of neuropsychological status (RBANS) and serum BDNF levels in 2 groups...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28397708/effective-brain-network-analysis-with-resting-state-eeg-data-a-comparison-between-heroin-abstinent-and-non-addicted-subjects
#13
Bin Hu, Qunxi Dong, Yanrong Hao, Qinglin Zhao, Jian Shen, Fang Zheng
Abstract-Objective. Neuro-electrophysiological tools have been widely used in heroin addiction studies. Previous studies indicated that chronic heroin abuse would result in abnormal functional organization of the brain. While few heroin addiction studies apply the effective connectivity tool to analyze the brain functional system (BFS) alterations induced by heroin abuse. The present study aims to identify the abnormality of resting-state heroin abstinent BFS using source decomposition and effective connectivity tools...
April 11, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28396142/atypical-binding-at-dopamine-and-serotonin-transporters-contribute-to-the-discriminative-stimulus-effects-of-mephedrone
#14
Alyssa F DeLarge, Laura L Erwin, Peter J Winsauer
Mephedrone (4-methylmethcathinone), a constituent of the recreational substances known as "bath salts", is a synthetic cathinone that can produce auditory and visual hallucinations, as well as problematic cardiovascular effects. This study compared the discriminative stimulus effects of mephedrone (0.32-10 mg/kg) with other prototypical drugs of abuse: cocaine (0.56-32 mg/kg), d-amphetamine (0.18-3.2 mg/kg), ketamine (1.8-18 mg/kg), phencyclidine (PCP, 1-5.6 mg/kg), heroin (1-10 mg/kg), 2,5-dimethoxy-4-iodoamphetamine (R-DOI, 0...
April 7, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28394703/comparative-analysis-of-opioid-queries-on-erowid-org-an-opportunity-to-advance-harm-reduction
#15
Rachel S Wightman, Jeanmarie Perrone, Fire Erowid, Earth Erowid, Zachary F Meisel, Lewis S Nelson
BACKGROUND: Many individuals who use opioids turn to online resources to gather information on effects, availability, and safety. OBJECTIVE: Describe opioid index page views on Erowid.org to assess trends in public interest in particular opioids. METHODS: Retrospective analysis of Erowid.org site traffic was performed to identify unique average daily visits to opioid pages. All data was normalized to that of visits to the heroin index page...
April 10, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/28393896/effects-of-ibudilast-on-the-subjective-reinforcing-and-analgesic-effects-of-oxycodone-in-recently-detoxified-adults-with-opioid-dependence
#16
Verena E Metz, Jermaine D Jones, Jeanne Manubay, Maria Sullivan, Shanthi Mogali, Andrew Segoshi, Gabriela Madera, Kirk W Johnson, Sandra D Comer
Ibudilast, a non-selective phosphodiesterase inhibitor, is used clinically in Asia for the treatment of asthma and post-stroke dizziness. Recent preclinical studies have suggested that it also inhibits glial cell activation in rodents, and may alter opioid-mediated effects, including analgesia and withdrawal symptoms. The effects of ibudilast on the abuse potential of opioids in humans are largely unknown. The present study was designed to examine the influence of ibudilast on subjective (including drug craving), reinforcing, and analgesic effects of oxycodone in human volunteers diagnosed with opioid dependence (equivalent to moderate-severe opioid use disorder)...
April 10, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28384742/how-would-you-manage-opioid-use-in-these-three-patients-grand-rounds-discussion-from-beth-israel-deaconess-medical-center
#17
Daniel P Alford, Marc L Cohen, Eileen E Reynolds
The increase in overdose deaths from prescription opioids and heroin in the United States over the past 20 years is believed to have resulted from increases in prescription of opioids for management of acute and chronic pain. Managing chronic pain is challenging for primary care clinicians for many reasons, including the lack of evidence to guide practice. The Centers for Disease Control and Prevention published a comprehensive guideline in 2016 to help clinicians with opioid prescribing for chronic pain. In this Grand Rounds, the guideline is reviewed and an expert discusses its application to 3 patients prescribed opioids to treat chronic pain...
April 4, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28379111/lifetime-doctor-diagnosed-mental-health-conditions-and-current-substance-use-among-gay-and-bisexual-men-living-in-vancouver-canada
#18
Nathan J Lachowsky, Joshun J S Dulai, Zishan Cui, Paul Sereda, Ashleigh Rich, Thomas L Patterson, Trevor T Corneil, Julio S G Montaner, Eric A Roth, Robert S Hogg, David M Moore
BACKGROUND: Studies have found that gay, bisexual, and other men who have sex with men (GBM) have higher rates of mental health conditions and substance use than heterosexual men, but are limited by issues of representativeness. OBJECTIVES: To determine the prevalence and correlates of mental health disorders among GBM in Metro Vancouver, Canada. METHODS: From 2012 to 2014, the Momentum Health Study recruited GBM (≥16 years) via respondent-driven sampling (RDS) to estimate population parameters...
May 12, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/28376505/six-year-outcome-of-opioid-maintenance-treatment-in-heroin-dependent-patients-results-from-a-naturalistic-study-in-a-nationally-representative-sample
#19
Michael Soyka, Jens Strehle, Jürgen Rehm, Gerhard Bühringer, Hans-Ulrich Wittchen
BACKGROUND: In many countries, the opioid agonists, buprenorphine and methadone, are licensed for maintenance treatment of opioid dependence. Many short-term studies have been performed, but little is known about long-term effects. Therefore, this study described over 6 years (1) mortality, retention and abstinence rates and (2) changes in concomitant drug use and somatic and mental health. METHODS: A prevalence sample of n = 2,694 maintenance patients, recruited from a nationally representative sample of n = 223 substitution doctors, was evaluated in a 6-year prospective-longitudinal naturalistic study...
April 5, 2017: European Addiction Research
https://www.readbyqxmd.com/read/28376406/availability-of-dopamine-transporters-in-heroin-dependent-subjects-a-18-f-fecnt-pet-imaging-study
#20
Shasha Xu, Ying Liu, Yu Li, Yangping Deng, Jie Yuan, Rongbin Lv, Yuankai Wang, Guangming Zhang, Zhirui Guo, Daxu Fu, Hui Zeng, Mei Han, Xingdang Liu
This study was to reconfirm the reduced dopamine transporter (DAT) availability in heroin-dependent subjects and validate the use of 2β-carbomethoxy-3β-(4-chlorophenyl)-8-(2-fluoroethyl)-nortropane ((18)F-FECNT) as a PET radiotracer to assess the changes of striatal DAT in drug addicted subjects. Herein, we assessed DAT standardized uptake values (SUV) of (18)F-FECNT in the striatum and cerebellum of 20 heroin-dependent subjects and 10 healthy controls and analyzed the correlation between DAT availability and heroin withdrawal symptom scores and anxiety/depression rating scales in heroin-dependent subjects, as well as the relationship between the withdrawal symptoms scores and age...
March 25, 2017: Psychiatry Research
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