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https://www.readbyqxmd.com/read/28332037/comparing-self-reported-demographic-and-sexual-behavioral-factors-among-men-who-have-sex-with-men-recruited-through-mechanical-turk-qualtrics-and-a-hiv-sti-clinic-based-sample-implications-for-researchers-and-providers
#1
Matthew R Beymer, Ian W Holloway, Christian Grov
Recruitment for HIV research among gay, bisexual, and other men who have sex with men (MSM) has increasingly moved to the online sphere. However, there are limited data comparing the characteristics of clinic-based respondents versus those recruited via online survey platforms. MSM were recruited from three sampling sites (STI clinic, MTurk, and Qualtrics) to participate in a survey from March 2015 to April 2016. Respondents were compared between each of the sampling sites on demographics, sexual history, substance use, and attention filter passage...
March 22, 2017: Archives of Sexual Behavior
https://www.readbyqxmd.com/read/28330826/the-influence-of-methamphetamine-on-maternal-behavior-and-development-of-the-pups-during-the-neonatal-period
#2
Mária Ševčíková, Ivana Hrebíčková, Eva Macúchová, Romana Šlamberová
Since it enters breast milk, methamphetamine (MA) abuse during lactation can not only affect the quality of maternal behavior but also postnatal development of pups. The aim of the present study was to examine the effect of injected MA (5mg/kg) on maternal behavior of rats and the differences in postnatal development, during postnatal days (PD) 1-11, of pups when the pups were directly exposed (i.e., injected) to MA or received MA indirectly via breast milk. Maternal behavior was examined using observation test (PD 1-22) and pup retrieval test (PD 1-12)...
March 18, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28329719/drug-involvement-during-and-after-college-estimates-of-opportunity-and-use-given-opportunity
#3
Hannah K Allen, Kimberly M Caldeira, Brittany A Bugbee, Kathryn B Vincent, Kevin E O'Grady, Amelia M Arria
BACKGROUND: College students perceive widespread availability of drugs and prescription medications for non-medical use on campus, but less is known about the relationship between opportunity to use, use, and use given opportunity of these drugs during and after college. The current study describes annual trends in (1) opportunity to use, (2) use, and (3) use given opportunity of eight drugs and three prescription medications used non-medically over seven years. METHODS: Data were derived from a longitudinal cohort study of 1253 first-year college students (52% female, 72% non-Hispanic white) at one large, public university...
March 7, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28324119/the-impact-of-cognitive-training-in-substance-use-disorder-the-effect-of-working-memory-training-on-impulse-control-in-methamphetamine-users
#4
Samantha J Brooks, L Wiemerslage, K H Burch, S A Maiorana, E Cocolas, H B Schiöth, K Kamaloodien, D J Stein
OBJECTIVES: Impulsivity is a vulnerability trait for poor self-regulation in substance use disorder (SUD). Working memory (WM) training improves impulsivity and self-regulation in psychiatric disorders. Here we test WM training in methamphetamine use disorder (MUD). METHODS: There are 15 MUD patients receiving inpatient treatment as usual (TAU) and 20 who additionally completed WM cognitive training (CT) and 25 healthy controls (HC). MANCOVA repeated measures analyses examined changes in impulsivity and self-regulation at baseline and after 4 weeks...
March 21, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28323507/heroin-and-methamphetamine-injection-an-emerging-drug-use-pattern
#5
Alia Al-Tayyib, Stephen Koester, Sig Langegger, Lisa Raville
OBJECTIVE: We sought to describe an emerging drug use pattern characterized by injection of both methamphetamine and heroin. We examined differences in drug injection patterns by demographics, injection behaviors, HIV and HCV status, and overdose. METHODS: Persons who inject drugs (PWID) were recruited as part of the National HIV Behavioral Surveillance (NHBS) system in Denver, Colorado. We used chi-square statistics to assess differences between those who reported only heroin injection, only methamphetamine injection, and combined heroin and methamphetamine injection...
March 21, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/28323108/chronic-methamphetamine-exposure-significantly-decreases-microglia-activation-in-the-arcuate-nucleus
#6
Steven A Lloyd, Beau Corkill, Matthew C Bruster, Rick L Roberts, Ryan A Shanks
Methamphetamine is a powerful psychostimulant drug and its use and abuse necessitates a better understanding of its neurobiobehavioral effects. The acute effects of binge dosing of methamphetamine on the neurons in the CNS are well studied. However, the long-term effects of chronic, low-dose methamphetamine are less well characterized, especially in other cell types and areas outside of the major dopamine pathways. Mice were administered 5mg/kg/day methamphetamine for ten days and brain tissue was analyzed using histochemistry and image analysis...
March 16, 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/28322983/the-relationship-between-fear-extinction-and-resilience-to-drug-dependence-in-rats
#7
Masaharu Ueno, Kazuo Yamada, Yukio Ichitani
Some individuals recover quickly from stressful events, while others do not; this suggests that there are individual differences in stress resilience. Previous studies in rats have shown that an animal's ability to extinguish conditioned fear can predict their stress resilience. In the present study, we investigated whether rats who are resilient or vulnerable to fear conditioning would consistently show resilient or vulnerable behaviors in other behavioral tests. Male Wistar-Imamichi rats were subjected to a series of behavioral tests, including open field, conditioned place-preference (CPP), forced swim and auditory fear conditioning...
March 18, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/28319198/methamphetamine-induces-shati-nat8l-expression-in-the-mouse-nucleus-accumbens-via-creb-and-dopamine-d1-receptor-dependent-mechanism
#8
Kyosuke Uno, Toh Miyazaki, Kengo Sodeyama, Yoshiaki Miyamoto, Atsumi Nitta
Shati/Nat8L significantly increased in the nucleus accumbens (NAc) of mice after repeated methamphetamine (METH) treatment. We reported that Shati/Nat8L overexpression in mouse NAc attenuated METH-induced hyperlocomotion, locomotor sensitization, and conditioned place preference. We recently found that Shati/Nat8L overexpression in NAc regulates the dopaminergic neuronal system via the activation of group II mGluRs by elevated N-acetylaspartylglutamate following N-acetylaspartate increase due to the overexpression...
2017: PloS One
https://www.readbyqxmd.com/read/28315272/sigma-receptors-and-substance-use-disorders
#9
Valentina Sabino, Callum Hicks, Pietro Cottone
Thanks to advances in neuroscience, addiction is now recognized as a chronic brain disease with genetic, developmental, and cultural components. Drugs of abuse, including alcohol, are able to produce significant neuroplastic changes responsible for the profound disturbances shown by drug addicted individuals. The current lack of efficacious pharmacological treatments for substance use disorders has encouraged the search for novel and more effective pharmacotherapies. Growing evidence strongly suggests that Sigma Receptors are involved in the addictive and neurotoxic properties of abused drugs, including cocaine , methamphetamine , and alcohol...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28303170/tbhq-alleviated-endoplasmic-reticulum-stress-apoptosis-and-oxidative-stress-by-perk-nrf2-crosstalk-in-methamphetamine-induced-chronic-pulmonary-toxicity
#10
Yun Wang, Yu-Han Gu, Ming Liu, Yang Bai, Li-Ye Liang, Huai-Liang Wang
Methamphetamine (MA) leads to cardiac and pulmonary toxicity expressed as increases in inflammatory responses and oxidative stress. However, some interactions may exist between oxidative stress and endoplasmic reticulum stress (ERS). The current study is designed to investigate if both oxidative stress and ERS are involved in MA-induced chronic pulmonary toxicity and if antioxidant tertiary butylhydroquinone (TBHQ) alleviated ERS-apoptosis and oxidative stress by PERK-Nrf2 crosstalk. In this study, the rats were randomly divided into control group, MA-treated group (MA), and MA plus TBHQ-treated group (MA + TBHQ)...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28302577/methamphetamine-effects-on-the-brain-gut-and-immune-system
#11
REVIEW
Monica D Prakash, Kathy Tangalakis, Juliana Antonipillai, Lily Stojanovska, Kulmira Nurgali, Vasso Apostolopoulos
Methamphetamine (METH) is a powerful central nervous system stimulant which elevates mood, alertness, energy levels and concentration in the short-term. However, chronic use and/or at higher doses METH use often results in psychosis, depression, delusions and violent behavior. METH was formerly used to treat conditions such as obesity and attention deficit hyperactivity disorder, but now is primarily used recreationally. Its addictive nature has led to METH abuse becoming a global problem. At a cellular level, METH exerts a myriad of effects on the central and peripheral nervous systems, immune system and the gastrointestinal system...
March 13, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28301174/differential-characteristics-of-ketamine-self-administration-in-the-olfactory-bulbectomy-model-of-depression-in-male-rats
#12
Zuzana Babinska, Jana Ruda-Kucerova
Ketamine has been extensively studied for its antidepressant potential, with promising results in both preclinical and clinical studies. However, concerns regarding its abuse liabilities greatly limit its potential to become an approved treatment for depression. Therefore, a better understanding the risks and benefits of ketamine use in depression is needed. This study aimed to assess the characteristics of operant intravenous (IV) ketamine self-administration and relapse-like behavior in the olfactory bulbectomy (OBX) model of depression in male rats...
March 16, 2017: Experimental and Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28297728/evidence-based-guidelines-for-the-pharmacological-management-of-acute-methamphetamine-related-disorders-and-toxicity
#13
Norbert Wodarz, Anne Krampe-Scheidler, Michael Christ, Heribert Fleischmann, Winfried Looser, Katharina Schoett, Frank Vilsmeier, Lydia Bothe, Corinna Schaefer, Euphrosyne Gouzoulis-Mayfrank
No abstract text is available yet for this article.
March 15, 2017: Pharmacopsychiatry
https://www.readbyqxmd.com/read/28297025/association-of-stimulant-use-with-dopaminergic-alterations-in-users-of-cocaine-amphetamine-or-methamphetamine-a-systematic-review-and-meta-analysis
#14
Abhishekh H Ashok, Yuya Mizuno, Nora D Volkow, Oliver D Howes
Importance: Stimulant use disorder is common, affecting between 0.3% and 1.1% of the population, and costs more than $85 billion per year globally. There are no licensed treatments to date. Several lines of evidence implicate the dopamine system in the pathogenesis of substance use disorder. Therefore, understanding the nature of dopamine dysfunction seen in stimulant users has the potential to aid the development of new therapeutics. Objective: To comprehensively review the in vivo imaging evidence for dopaminergic alterations in stimulant (cocaine, amphetamine, or methamphetamine) abuse or dependence...
March 15, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/28295787/an-exploratory-wastewater-analysis-study-of-drug-use-in-auckland-new-zealand
#15
Foon Yin Lai, Chris Wilkins, Phong Thai, Jochen F Mueller
INTRODUCTION AND AIMS: New Zealand is considered to have unusual drug use patterns by international standards. However, this understanding has largely been obtained from social surveys where respondents self-report use. The aim of this paper is to conduct the first wastewater study of drug use in Auckland. DESIGN AND METHODS: Wastewater sampling was completed from 2 May to 18 July 2014 at 2 Auckland wastewater treatment plants which service 1.3 million people. Samples were analysed for 17 drug residues by using liquid chromatography-tandem mass spectrometry...
March 12, 2017: Drug and Alcohol Review
https://www.readbyqxmd.com/read/28294443/health-service-utilisation-attributable-to-methamphetamine-use-in-australia-patterns-predictors-and-national-impact
#16
Rebecca McKetin, Louisa Degenhardt, Marian Shanahan, Amanda L Baker, Nicole K Lee, Dan I Lubman
AIM AND BACKGROUND: We estimated health service utilisation attributable to methamphetamine use, its national impact and examined other predictors of health service utilisation among dependent methamphetamine users. METHOD: Past year rates of health service utilisation (number of attendances for general hospitals, psychiatric hospitals, emergency departments, general practitioners, psychiatrists, counsellors or psychologists, and dentists) were estimated for three levels of methamphetamine use (no use, < weekly, ≥ weekly) using panel data from a longitudinal cohort of 484 dependent methamphetamine users from Sydney and Brisbane, Australia...
March 12, 2017: Drug and Alcohol Review
https://www.readbyqxmd.com/read/28293389/exploring-the-effect-of-intravenous-lipid-emulsion-in-acute-methamphetamine-toxicity
#17
Ameneh Ghadiri, Leila Etemad, Mohammad Moshiri, Seyed Adel Moallem, Amir Hossein Jafarian, Farzin Hadizadeh, Mahmoud Seifi
OBJECTIVES: The increasing use of methamphetamine (METH) in the last decades has made it the second most abused drug. Advancs in the area of intravenous lipid emulsion (ILE) have led to its potential application in the treatment of poisoning. The present study aims to investigate the potential role of ILE as an antidote for acute METH poisoning. MATERIALS AND METHODS: Two groups of six male rats were treated by METH (45 mg/kg), intraperitoneally. Five to seven min later, they received an infusion of 18...
February 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28287691/effects-of-housing-on-methamphetamine-induced-neurotoxicity-and-spatial-learning-and-memory
#18
Arnold Gutierrez, Sarah A Jablonski, Robyn M Amos-Kroohs, Anna C Barnes, Michael T Williams, Charles V Vorhees
Severe stress potentiates methamphetamine (MA) neurotoxicity. However, whether moderate stress increases or decreases the neurotoxic effects of MA is unknown. We assessed the effects of MA (4 x 10 mg/kg at 2 h intervals) in combination with prior barren-cage housing in adult male Sprague-Dawley rats on monoamines and glial fibrillary acid protein (GFAP) in one cohort and spatial learning and memory in the Morris water maze in another cohort. MA reduced dopamine (DA) and serotonin (5-HT) in the neostriatum and nucleus accumbens, 5-HT in the hippocampus, and increased GFAP in neostriatum and nucleus accumbens compared with saline controls...
March 13, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28286929/cannabis-use-and-bone-mineral-density-nhanes-2007-2010
#19
Donald Bourne, Wesley Plinke, Elizabeth R Hooker, Carrie M Nielson
Cannabis use is rising in the USA. Its relationship to cannabinoid signaling in bone cells implies its use could affect bone mineral density (BMD) in the population. In a national survey of people ages 20-59, we found no association between self-reported cannabis use and BMD of the hip or spine. INTRODUCTION: Cannabis is the most widely used illegal drug in the USA, and its recreational use has recently been approved in several US states. Cannabinoids play a role in bone homeostasis. We aimed to determine the association between cannabis use and BMD in US adults...
December 2017: Archives of Osteoporosis
https://www.readbyqxmd.com/read/28286854/recurrent-syncope-following-substance-abuse-a-case-report
#20
Forod Salehi, Mohammad Mehdi Hassanzadeh Taheri, HamidReza Riasi, Omid Mehrpour
Drug abuse is considered as the most common poisoning in the world. Stimulants agent especially amphetamines and methamphetamines are among important abused substances. Different types of neurologic, psychiatric, respiratory, gastrointestinal, and cardiogenic complications have been reported to be related to methamphetamine consumption. Some of these substances could cause dysrhythmias which is the most prevalent etiology of cardiogenic syncope. Ecstasy, as one of the most commonly abused drugs, is known as a cause of cardiac dysrhythmias...
2017: Emergency (Tehran, Iran)
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