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Methamphetamine treatment

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https://www.readbyqxmd.com/read/28421682/predicting-abstinence-from-methamphetamine-use-after-residential-rehabilitation-findings-from-the-methamphetamine-treatment-evaluation-study
#1
Rebecca McKetin, Astrid Kothe, Amanda L Baker, Nicole K Lee, Joanne Ross, Dan I Lubman
INTRODUCTION AND AIMS: We previously found that residential rehabilitation increased continuous abstinence from methamphetamine use 1 year after treatment. We examine what client and treatment characteristics predict this outcome. DESIGN AND METHODS: Participants (n = 176) were dependent on methamphetamine and entering residential rehabilitation for methamphetamine use. Simultaneous logistic regression was used to identify independent predictors of continuous abstinence from methamphetamine use at 1 year follow-up...
April 18, 2017: Drug and Alcohol Review
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
#2
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/28408317/involvement-of-puma-in-pericyte-migration-induced-by-methamphetamine
#3
Yanhong Zhang, Yuan Zhang, Ying Bai, Jie Chao, Gang Hu, Xufeng Chen, Honghong Yao
Mounting evidence indicates that methamphetamine causes blood-brain barrier damage, with emphasis on endothelial cells. The role of pericytes in methamphetamine-induced BBB damage remains unknown. Our study demonstrated that methamphetamine increased the migration of pericytes from the endothelial basement membrane. However, the detailed mechanisms underlying this process remain poorly understood. Thus, we examined the molecular mechanisms involved in methamphetamine-induced pericyte migration. The results showed that exposure of C3H/10T1/2 cells and HBVPs to methamphetamine increased PUMA expression via activation of the sigma-1 receptor, MAPK and Akt/PI3K pathways...
April 10, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28386520/behavioral-and-stereological-analysis-of-the-effects-of-intermittent-feeding-diet-on-the-orally-administrated-mdma-ecstasy-in-mice
#4
Zeinab Ebrahimian, Zeinab Karimi, Mohammad Javad Khoshnoud, Mohammad Reza Namavar, Bahram Daraei, Mohsen Raza Haidari
Background: 3,4-methylenedioxy-methamphetamine or MDMA (also known as "ecstasy" or "molly") is a commonly abused drug that affects behavior and can lead to neuronal damage. Intermittent feeding is an effective dietary protocol that promotes neuroprotection and improves behavioral outcomes in animal models of neurotoxicity and neurodegenerative diseases. In this study, we investigated the behavioral and histological outcomes of the effect of intermittent feeding on the orally administered MDMA in mice. Methods: The animals (male albino mice) were divided into four groups: ad libitum (AL), intermittent feeding (IF) (food given every other day), and AL and IF control groups...
January 2017: Innovations in Clinical Neuroscience
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
#5
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/28379107/gender-and-sex-trading-among-active-methamphetamine-users-in-cape-town-south-africa
#6
Ryan R Lion, Melissa H Watt, Wendee M Wechsberg, Christina S Meade
BACKGROUND: South Africa has experienced a tremendous rise in methamphetamine use since the year 2000. Sex trading is a global phenomenon that has been observed in active drug users and has been associated with risks for HIV infection and violence. OBJECTIVES: This paper describes and examines the correlates of sex trading among active methamphetamine users in Cape Town, South Africa. METHODS: Through peer referral, 360 (201 male; 159 female) active methamphetamine users were recruited in a peri-urban township...
May 12, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/28373066/role-of-d-amphetamine-and-d-methamphetamine-as-active-metabolites-of-benzphetamine-evidence-from-drug-discrimination-and-pharmacokinetic-studies-in-male-rhesus-monkeys
#7
Matthew L Banks, Rodney W Snyder, Timothy R Fennell, S Stevens Negus
Benzphetamine is a Schedule III anorectic agent that is a prodrug for d-amphetamine and d-methamphetamine and may have utility as an "agonist" medication for cocaine use disorder treatment. This study evaluated the pharmacokinetic-pharmacodynamic profile of benzphetamine using a drug discrimination procedure in rhesus monkeys. The potency and time course of cocaine-like discriminative stimulus effects were compared for benzphetamine (10-18mg/kg, intramuscular (IM)) and d-amphetamine (0.032-0.32mg/kg, IM) in monkeys (n=3-4) trained to discriminate IM cocaine (0...
March 31, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28363605/genetic-or-pharmacological-depletion-of-cannabinoid-cb1-receptor-protects-against-dopaminergic-neurotoxicity-induced-by-methamphetamine-in-mice
#8
Duy-Khanh Dang, Eun-Joo Shin, Anh-Thu Mai, Choon-Gon Jang, Seung-Yeol Nah, Ji Hoon Jeong, Catherine Ledent, Tsuneyuki Yamamoto, Toshitaka Nabeshima, Emmanuel S Onaivi, Hyoung-Chun Kim
Accumulating evidence suggests that cannabinoid ligands play delicate roles in cell survival and apoptosis decisions, and that cannabinoid CB1 receptors (CB1R) modulate dopaminergic function. However, the role of CB1R in methamphetamine (MA)-induced dopaminergic neurotoxicity in vivo remains elusive. Multiple high doses of MA increased phospho-ERK and CB1R mRNA expressions in the striatum of CB1R (+/+) mice. These increases were attenuated by CB1R antagonists (i.e., AM251 and rimonabant), an ERK inhibitor (U0126), or dopamine D2R antagonist (sulpiride)...
March 29, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28359886/sex-differences-in-the-strategies-of-spatial-learning-in-prenatally-exposed-rats-treated-with-various-drugs-in-adulthood
#9
Eva Macúchová, Kateryna Nohejlová, Mária Ševčíková, Ivana Hrebíčková, Romana Šlamberová
In the present study we investigated the sex differences in the effect of adult long-term drug treatment on cognitive functions of Wistar rats, which were prenatally exposed to MA (5mg/kg) or saline. Cognitive functions were tested as an ability of spatial learning in the Morris Water Maze (MWM), which consisted of three types of tests: "Place Navigation Test"; "Probe Test", and "Memory Recall Test". Adult animals were injected daily, after completion of the last trial, either with saline or cocaine (COC; 5mg/kg), MDMA (3,4-methylenedioxy-methamphetamine; 5mg/kg), morphine (MOR; 5mg/kg), or delta-9-tetrahydrocannabinol (THC; 2mg/kg)...
March 27, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28357460/naltrexone-moderates-the-relationship-between-cue-induced-craving-and-subjective-response-to-methamphetamine-in-individuals-with-methamphetamine-use-disorder
#10
Daniel J O Roche, Matthew J Worley, Kelly E Courtney, Spencer Bujarski, Edythe D London, Steven Shoptaw, Lara A Ray
RATIONALE: Reductions in cue-induced craving and subjective response to drugs of abuse are commonly used as initial outcome measures when testing novel medications for the treatment of addiction. Yet neither the relationship between these two measures at the individual level nor the moderating effects of pharmacotherapies on this relationship has been examined. OBJECTIVE: This secondary data analysis sought to examine (1) the predictive relationship between cue-induced craving and subsequent acute subjective response to methamphetamine (MA) and (2) whether the opioid-receptor antagonist naltrexone moderated this association in a sample of non-treatment-seeking individuals who met DSM-IV criteria for MA use disorder (abuse or dependence)...
March 29, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28351169/pharmacotherapeutic-agents-in-the-treatment-of-methamphetamine-dependence
#11
Kirsten C Morley, Jennifer L Cornish, Alon Faingold, Katie Wood, Paul S Haber
Methamphetamine use is a serious public health concern in many countries and is second to cannabis as the most widely abused illicit drug in the world. Effective management for methamphetamine dependence remains elusive and the large majority of methamphetamine users relapse following treatment. Areas covered: Progression in the understanding of the pharmacological basis of methamphetamine use has provided us with innovative opportunities to develop agents to treat dependence. The current review summarizes relevant literature on the neurobiological and clinical correlates associated with methamphetamine use...
May 2017: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/28348951/spontaneous-pneumomediastinum-a-rare-complication-of-methamphetamine-use
#12
Jessica Albanese, Cole Gross, Mohamed Azab, Sinziana Mahalean, Ranjit Makar
OBJECTIVE: To present an unusual case of spontaneous pneumomediastinum subsequent to recreational amphetamine use. CASE REPORT: A young African American adult male was admitted to internal medicine service for treatment of rhabdomyolysis secondary to methamphetamine use. On admission, he was complaining of chest pain in addition to nausea and generalized muscle aches. By his second hospital day, chest pain had resolved yet physical exam demonstrated crepitation of the anterior chest and left axilla...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28348387/a-synthetic-small-molecule-isoxazole-9-protects-against-methamphetamine-relapse
#13
M H Galinato, J W Lockner, M J Fannon-Pavlich, J C Sobieraj, M C Staples, S S Somkuwar, A Ghofranian, S Chaing, A I Navarro, A Joea, B W Luikart, K D Janda, C Heyser, G F Koob, C D Mandyam
Adult neurogenesis in the dentate gyrus (DG) is strongly influenced by drug-taking behavior and may have a role in the etiology of drug-seeking behavior. However, mechanistic studies on the relationship of neurogenesis on drug seeking are limited. Outbred Wistar rats experienced extended access methamphetamine self-administration and individual differences in drug taking defined animals with higher preferred and lower preferred levels of drug intake. Forced abstinence from higher preferred levels of drug taking enhanced neurogenesis and neuronal activation of granule cell neurons (GCNs) in the DG and produced compulsive-like drug reinstatement...
March 28, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28341135/methamphetamine-induces-hepatotoxicity-via-inhibiting-cell-division-arresting-cell-cycle-and-activating-apoptosis-in%C3%A2-vivo-and-in%C3%A2-vitro-studies
#14
Qi Wang, Li-Wen Wei, Huan-Qin Xiao, Ye Xue, Si-Hao Du, Yun-Gang Liu, Xiao-Li Xie
Methamphetamine (METH) resulted in acute hepatic injury. However, the underlying mechanisms have not been fully clarified. In the present study, rats were treated with METH (15 mg/kg B.W.) for 8 injections (i.p.), and the levels of alanine transaminase, asparatate transaminase and ammonia in serum were significantly elevated over those in the control group, suggesting hepatic injury, which was evidenced by histopathological observation. Analysis of the liver tissues with microarray revealed differential expressions of a total of 332 genes in METH-treated rats...
March 21, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28337798/latent-classes-of-polydrug-and-polyroute-use-and-associations-with-human-immunodeficiency-virus-risk-behaviours-and-overdose-among-people-who-inject-drugs-in-tijuana-baja-california-mexico
#15
Meredith C Meacham, Scott C Roesch, Steffanie A Strathdee, Suzanne Lindsay, Patricia Gonzalez-Zuniga, Tommi L Gaines
INTRODUCTION AND AIMS: Patterns of polydrug use among people who inject drugs (PWID) may be differentially associated with overdose and unique human immunodeficiency virus (HIV) risk factors. Subgroups of PWID in Tijuana, Mexico, were identified based on substances used, route of administration, frequency of use and co-injection indicators. DESIGN AND METHODS: Participants were PWID residing in Tijuana age ≥18 years sampled from 2011 to 2012 who reported injecting an illicit substance in the past month (n = 735)...
March 24, 2017: Drug and Alcohol Review
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
#16
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/28323108/chronic-methamphetamine-exposure-significantly-decreases-microglia-activation-in-the-arcuate-nucleus
#17
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 18, 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/28319198/methamphetamine-induces-shati-nat8l-expression-in-the-mouse-nucleus-accumbens-via-creb-and-dopamine-d1-receptor-dependent-mechanism
#18
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
#19
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/28301174/differential-characteristics-of-ketamine-self-administration-in-the-olfactory-bulbectomy-model-of-depression-in-male-rats
#20
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...
April 2017: Experimental and Clinical Psychopharmacology
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