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Methamphetamine addiction

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https://www.readbyqxmd.com/read/29350320/ethical-implications-in-vaccine-pharmacotherapy-for-treatment-and-prevention-of-drug-of-abuse-dependence
#1
Anna Carfora, Paola Cassandro, Alessandro Feola, Francesco La Sala, Raffaella Petrella, Renata Borriello
Different immunotherapeutic approaches are in the pipeline for the treatment of drug dependence. "Drug vaccines" aim to induce the immune system to produce antibodies that bind to drugs and prevent them from inducing rewarding effects in the brain. Drugs of abuse currently being tested using these new approaches are opioids, nicotine, cocaine, and methamphetamine. In human clinical trials, "cocaine and nicotine vaccines" have been shown to induce sufficient antibody levels while producing few side effects. Studies in humans, determining how these vaccines interact in combination with their target drug, are underway...
January 19, 2018: Journal of Bioethical Inquiry
https://www.readbyqxmd.com/read/29343767/blockade-of-trpv1-inhibits-methamphetamine-induced-rewarding-effects
#2
Yu-Hua Tian, Shi-Xun Ma, Kwang-Wook Lee, Sunmee Wee, George F Koob, Seok-Yong Lee, Choon-Gon Jang
Methamphetamine (MAP) is the most widely used psychostimulant in the world, but the exact mechanisms underlying MAP addiction are not yet fully understood. Recent studies have identified the distribution of TRPV1 in several brain regions that are related to drug addiction, including nucleus accumbens (NAc) and dorsal striatum (DSt). In the present study, we performed conditioned place preference (CPP) and self-administration tests to examine the effects of capsazepine (CPZ) and SB366791 (SB) on MAP reward. We found that both CPZ and SB significantly inhibited MAP-induced CPP and self-administration; in contrast, TRPV1 knock-out (KO) mice did not develop MAP-induced CPP...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29340869/intervention-effect-of-repetitive-tms-on-behavioral-adjustment-after-error-commission-in-long-term-methamphetamine-addicts-evidence-from-a-two-choice-oddball-task
#3
Qiongdan Liang, Jia Lin, Jiemin Yang, Xiang Li, Yijiang Chen, Xianxin Meng, Jiajin Yuan
Behavioral adjustment plays an important role in the treatment and relapse of drug addiction. Nonetheless, few studies have examined behavioral adjustment and its plasticity following error commission in methamphetamine (METH) dependence, which is detrimental to human health. Thus, we investigated the behavioral adjustment performance following error commission in long-term METH addicts and how it varied with the application of repetitive transcranial magnetic stimulation (rTMS) of the left dorsolateral prefrontal cortex (DLPFC)...
January 16, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29338767/effect-of-exercise-versus-cognitive-behavioural-therapy-or-no-intervention-on-anxiety-depression-fitness-and-quality-of-life-in-adults-with-previous-methamphetamine-dependency-a-systematic-review
#4
REVIEW
Linzette Morris, Jessica Stander, Wardah Ebrahim, Stephanie Eksteen, Orissa Anna Meaden, Ané Ras, Annemarie Wessels
BACKGROUND: Methamphetamine (MA) is a highly addictive psychostimulant used by approximately 52 million people worldwide. Chronic MA abuse leads to detrimental physiological and neurological changes, as well as increases in anxiety and depression, and decreases in overall fitness and quality of life. Exercise has been reported to possibly reverse physiological and neurological damage caused by previous MA use, and to reduce anxiety and depression in this population. The aim of this systematic review was to identify, clinically appraise and synthesise the available evidence for the effectiveness of exercise, compared to cognitive behavioural therapy (CBT), standard care or no intervention, on decreasing anxiety and depression and improving fitness and quality of life in previous MA users...
January 16, 2018: Addiction Science & Clinical Practice
https://www.readbyqxmd.com/read/29338492/genetic-variation-of-gria3-gene-is-associated-with-vulnerability-to-methamphetamine-dependence-and-its-associated-psychosis
#5
Sri-Arun Iamjan, Samur Thanoi, Paritat Watiktinkorn, Gavin P Reynolds, Sutisa Nudmamud-Thanoi
Methamphetamine (METH) is an addictive psychostimulant drug commonly leading to schizophrenia-like psychotic symptoms. Disturbances in glutamatergic neurotransmission have been proposed as neurobiological mechanisms and the α-amino-3 hydroxy-5 methyl-4 isoxazole propionic acid (AMPA) glutamate receptor has been implicated in these processes. Moreover, genetic variants in GRIAs, genes encoding AMPA receptor subunits, have been observed in association with both drug dependence and psychosis. We hypothesized that variation of GRIA genes may be associated with METH dependence and METH-induced psychosis...
January 1, 2018: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/29334687/cognitive-deficits-in-methamphetamine-users-how-strong-is-the-evidence
#6
Lisa Proebstl, Felicia Kamp, Gabi Koller, Michael Soyka
Methamphetamine use has spread in many European countries and the United States. The current review provides a summary and critical analysis of research on cognitive deficits associated with methamphetamine, also known as "crystal meth." The literature search performed for this review led us to the hypothesis that methamphetamine use is associated with persistent changes in brain metabolism that result in various impairments, such as deficits in memory, attention, and concentration. The dopaminergic system in particular seems to be affected...
January 15, 2018: Pharmacopsychiatry
https://www.readbyqxmd.com/read/29288750/generalization-of-effects-of-environmental-enrichment-on-seeking-for-different-classes-of-drugs-of-abuse
#7
Magdalena Sikora, Céline Nicolas, Marine Istin, Nematollah Jaafari, Nathalie Thiriet, Marcello Solinas
BACKGROUND: Addiction is a chronic disease characterized by persistent vulnerability to relapse during abstinence. In animal models of addiction, accumulating evidence suggests that exposure to environmental enrichment (EE) during periods of abstinence can have curative effects on addiction and reduce the risks of relapse. However, until present most studies have mainly focused on cocaine. In this study, we investigated whether EE could have beneficial effects on cue-induced seeking for several psychoactive drugs belonging to different pharmacological classes such as methamphetamine (METH), heroin (HER) and nicotine (NIC)...
December 27, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/29247759/repeated-methamphetamine-and-modafinil-induce-differential-cognitive-effects-and-specific-histone-acetylation-and-dna-methylation-profiles-in-the-mouse-medial-prefrontal-cortex
#8
Betina González, Subramaniam Jayanthi, Natalia Gomez, Oscar V Torres, Máximo H Sosa, Alejandra Bernardi, Francisco J Urbano, Edgar García-Rill, Jean-Lud Cadet, Verónica Bisagno
Methamphetamine (METH) and modafinil are psychostimulants with different long-term cognitive profiles: METH is addictive and leads to cognitive decline, whereas modafinil has little abuse liability and is a cognitive enhancer. Increasing evidence implicates epigenetic mechanisms of gene regulation behind the lasting changes that drugs of abuse and other psychotropic compounds induce in the brain, like the control of gene expression by histones 3 and 4 tails acetylation (H3ac and H4ac) and DNA cytosine methylation (5-mC)...
December 13, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29231136/stability-of-drugs-of-abuse-in-urine-samples-at-room-temperature-by-use-of-a-salt-mixture
#9
Manuela Pellegrini, Silvia Graziano, Luisa Mastrobattista, Adele Minutillo, Francesco Paolo Busardo, Gianfranco Scarsella
BACKGROUND: It has been long recognized that ensuring analyte stability is of crucial importance in the use of any quantitative bioanalytical method. As analyses are usually not performed directly after collection of the biological samples, but after these have been processed and stored, it is essential that analyte stability be maintained over the relevant storage conditions in order to ensure that the obtained concentration results adequately reflect those directly after sampling. The conservation of urine samples in refrigerated/frozen conditions is strongly recommended; but not always feasible...
December 11, 2017: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/29228526/study-of-serum-malondialdehyde-level-in-opioid-and-methamphetamine-dependent-patients
#10
Khadije Najafi, Sajad Ahmadi, Mahdi Rahpeyma, Habibolah Khazaie, Asad Vaisi-Raygani, Ali Moini, Amir Kiani
Opioid compound and methamphetamine are commonly used in drug abuse; these can disrupt the normal function of cellular and molecular systems, leading to several events such as oxidative stress, aging, apoptosis, and necrosis. Malondialdehyde (MDA) is the most important biomarker for evaluation of oxidative stress and determination of lipid peroxidation. In this study, 42 drug abusers and 22 healthy persons participated as case and control groups, respectively. MDA in volunteer sera was determined by high-performance liquid chromatography (HPLC) with fluorescence detection after pre-column derivatization using thiobarbituric acid...
October 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/29217282/atypical-dopamine-transporter-inhibitors-attenuate-compulsive-like-methamphetamine-self-administration-in-rats
#11
Brendan J Tunstall, Chelsea P Ho, Jianjing Cao, Janaína C M Vendruscolo, Brooke E Schmeichel, Rachel D Slack, Gianluigi Tanda, Alexandra J Gadiano, Rana Rais, Barbara S Slusher, George F Koob, Amy H Newman, Leandro F Vendruscolo
Methamphetamine (METH) is a highly addictive drug, but no pharmacological treatment is yet available for METH use disorders. Similar to METH, the wake-promoting drug (R)-modafinil (R-MOD) binds to the dopamine transporter (DAT). Unlike METH, R-MOD is not a substrate for transport by DAT and has low abuse potential. We tested the hypothesis that the atypical DAT inhibitor R-MOD and compounds that are derived from Modafinil would decrease METH intake by reducing the actions of METH at the DAT. We tested the effects of systemic injections of R-MOD and four novel Modafinil-derived ligands with increased DAT affinity (JJC8-016, JJC8-088, JJC8-089, and JJC8-091) on intravenous (i...
December 4, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/29199843/motivational-interviewing-enhancement-and-brief-interventions-over-the-last-decade-a-review-of-reviews-of-efficacy-and-effectiveness
#12
Carlo C DiClemente, Catherine M Corno, Meagan M Graydon, Alicia E Wiprovnick, Daniel J Knoblach
Motivation is a well-established predictor of recovery for addictive behaviors. Treatments aimed at changing substance use and gambling frequently employ motivational enhancing strategies, based in the principles of Motivational Interviewing (MI). Evidence for these approaches across addictive behaviors does not always paint a clear picture. The purpose of this review was to examine existing reviews of motivational-based interventions for various substances of abuse and gambling in the last decade to gain a deeper understanding of the current evidence and implications for future research and clinical practice...
December 2017: Psychology of Addictive Behaviors: Journal of the Society of Psychologists in Addictive Behaviors
https://www.readbyqxmd.com/read/29189190/role-of-repetitive-transcranial-magnetic-stimulation-rtms-in-treatment-of-addiction-and-related-disorders-a-systematic-review
#13
Ramkrishna Makani, Basant Pradhan, Umang Shah, Tapan Parikh
BACKGROUND: Addiction and related disorders are devastating with their tremendous social, psychological, and physical consequences for which development of optimally effective treatments are long overdue. Repetitive transcranial magnetic stimulation (rTMS) is relatively safe and is becoming an emerging therapeutic tool for these conditions. METHODS: This systematic review was conducted using PubMed, PsycINFO, PsychiatryOnline and Cochrane Library ranging from year 2001 to 2017...
November 29, 2017: Current Drug Abuse Reviews
https://www.readbyqxmd.com/read/29185481/methamphetamine-induces-dopamine-release-in-the-nucleus-accumbens-through-a-sigma-receptor-mediated-pathway
#14
David M Hedges, J Daniel Obray, Jordan T Yorgason, Eun Young Jang, Vajira K Weerasekara, Joachim D Uys, Frederick P Bellinger, Scott C Steffensen
Methamphetamine (METH) is a drug with a high addictive potential that is widely abused across the world. While it is known that METH dysregulates both dopamine transmission and dopamine reuptake, the specific mechanism of action remains obscure. One promising target of METH is the sigma receptor, a chaperone protein located on the membrane of the endoplasmic reticulum. Using fast-scan cyclic voltammetry, we show that METH-enhancement of evoked dopamine release and basal efflux is dependent on sigma receptor activation...
November 29, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29183100/-access-to-inpatient-rehabilitation-of-methamphetamine-addiction-barriers-and-potential-for-improvement-from-the-experts-perspective
#15
Laura Hoffmann, Nadine Schumann, Matthias Richter
Objective The study explores central barriers impeding the access to inpatient rehabilitation of methamphetamine addicts and investigates how these barriers can be tackled. Methods The experiences and perspectives of experts from different healthcare sectors were explored within 39 semi-structured individual interviews. Subsequently, the results gathered in the course of the individual interviews were discussed within 2 inter-professional focus groups. All interviews and focus group discussions were analyzed according to the interpretive analysis method of Meuser & Nagel...
November 28, 2017: Die Rehabilitation
https://www.readbyqxmd.com/read/29175029/depletion-of-d3-dopamine-receptor-affects-methamphetamine-induced-expression-patterns-of-pde4b-and-atf3
#16
Yanjiong Chen, Cuo Yang, Li Zhu, Jiaqi Li, Fanglin Guan, Teng Chen
The role of the D3 dopamine receptor (D3R) and the specific molecular mechanisms underlying the regulation of D3R via the cAMP signaling pathway in methamphetamine (METH) addiction are still unclear. Here, we measured changes in Pde4b and Atf3 in the cAMP signaling pathway of dopaminergic system components, including the nucleus accumbens (NAc), caudate putamen (CPu) and hippocampus (Hip), in D3R knockout mice(D3R-/-) 1h and 24h after METH-induced behavioral sensitization. We found that knocking out D3R attenuated METH-induced behavioral sensitization, and Pde4b and Atf3 exhibited different expression patterns in brain regions in response to METH...
November 22, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/29174638/upregulation-of-ccl7-and-ccl2-in-reward-system-mediated-through-dopamine-d1-receptor-signaling-underlies-methamphetamine-induced-place-preference-in-mice
#17
Fumihiro Saika, Norikazu Kiguchi, Naoki Wakida, Daichi Kobayashi, Yohji Fukazawa, Shinsuke Matsuzaki, Shiroh Kishioka
We previously showed that the CC-chemokine ligand 2 (CCL2)-CC-chemokine receptor 2 (CCR2) system is responsible for conditioned place preference (CPP) by methamphetamine (Meth). In this study, we investigated the roles for other chemokines mediating Meth-induced CPP and the upstream factors upregulating chemokines in mice. We found that CCL7 mRNA level was upregulated in the prefrontal cortex (PFC) after Meth administration (3mg/kg, subcutaneous), and increased CCL7 immunoreactivity was localized to the PFC NeuN-positive neurons...
November 22, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/29167724/analysis-of-resting-state-fmri-topological-graph-theory-properties-in-methamphetamine-drug-users-applying-box-counting-fractal-dimension
#18
Meysam Siyah Mansoory, Mohammad Ali Oghabian, Amir Homayoun Jafari, Alireza Shahbabaie
Introduction: Graph theoretical analysis of functional Magnetic Resonance Imaging (fMRI) data has provided new measures of mapping human brain in vivo. Of all methods to measure the functional connectivity between regions, Linear Correlation (LC) calculation of activity time series of the brain regions as a linear measure is considered the most ubiquitous one. The strength of the dependence obligatory for graph construction and analysis is consistently underestimated by LC, because not all the bivariate distributions, but only the marginals are Gaussian...
September 2017: Basic and Clinical Neuroscience
https://www.readbyqxmd.com/read/29165617/selective-activation-of-striatal-ngf-trka-p75ntr-mapk-intracellular-signaling-in-rats-that-show-suppression-of-methamphetamine-intake-30-days-following-drug-abstinence
#19
Oscar V Torres, Subramanian Jayanthi, Michael T McCoy, Jean Lud Cadet
Background: The continuing epidemic of methamphetamine (METH) addiction has prompted research aimed at understanding striatal dysfunctions potentially associated with long-term METH use. Methods: Here, we investigated transcriptional and translational alterations in the expression of neurotrophic factors in the rat striatum at 30 days following METH SA and footshock punishment. Male Sprague-Dawley rats were trained to self-administer METH (0.1 mg/kg/injection, i...
November 20, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29147885/proceedings-of-the-2017-isev-symposium-on-hiv-neurohiv-drug-abuse-evs
#20
Guoku Hu, Sowmya Yelamanchili, Fatah Kashanchi, Norman Haughey, Vincent C Bond, Kenneth W Witwer, Lynn Pulliam, Shilpa Buch
Despite the success of combination antiretroviral therapy (cART), there is increased prevalence of HIV-associated neurocognitive disorders (HAND) in HIV-1-infected individuals on cART, which poses a major health care challenge. Adding further complexity to this long-term antiretroviral use is the comorbidity with drugs of abuse such as morphine, cocaine, and methamphetamine, which can in turn, exacerbate neurologic and cognitive deficits associated with HAND. Furthermore, HIV proteins, such as the transactivator of transcription (Tat) and the envelope protein (gp120), as well as antiretrovirals themselves can also contribute to the progression of neurodegeneration underlying HAND...
November 16, 2017: Journal of Neurovirology
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