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Pharmacological treatment of addiction

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https://www.readbyqxmd.com/read/27933094/the-newer-opioid-agonist-treatment-with-lower-substitutive-opiate-doses-is-associated-with-better-toxicology-outcome-than-the-older-harm-reduction-treatment
#1
Jacopo V Bizzarri, Valentina Casetti, Livia Sanna, Angelo Giovanni Icro Maremmani, Luca Rovai, Silvia Bacciardi, Daria Piacentino, Andreas Conca, Icro Maremmani
BACKGROUND: Charge-free heroin use disorder treatment in Italy follows two main approaches, i.e., harm reduction treatment (HRT) strategy in community low-threshold facilities for drug addiction and opioid agonist treatment (OAT) in high-threshold facilities for opioid addiction, focusing on pharmacological maintenance according to the Dole and Nyswander strategy. We aimed to compare the impact of HRT and OAT on patient outcome, as assessed through negativity for drugs on about 1-year urinalyses...
2016: Annals of General Psychiatry
https://www.readbyqxmd.com/read/27927042/pharmacological-treatments-for-methamphetamine-addiction-current-status-and-future-directions
#2
Javier Ballester, Gerald Valentine, Mehmet Sofuoglu
Methamphetamine (MA) abuse remains a global health challenge despite intense research interest in the development of pharmacological treatments. This review provides a summary of clinical trials and human studies on the pharmacotherapy of methamphetamine use disorder (MUD). Areas Covered: We summarize published clinical trials that tested candidate medications for MUD and also conducted PubMed and Google Scholar searches to identify recently completed clinical trials using the keywords "methamphetamine" "addiction" "pharmacotherapy" and "clinical trial...
December 7, 2016: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/27903793/the-serotonin-5-ht2c-receptor-and-the-non-addictive-nature-of-classic-hallucinogens
#3
REVIEW
Clinton E Canal, Kevin S Murnane
Classic hallucinogens share pharmacology as serotonin 5-HT2A, 5-HT2B, and 5-HT2C receptor agonists. Unique among most other Schedule 1 drugs, they are generally non-addictive and can be effective tools in the treatment of addiction. Mechanisms underlying these attributes are largely unknown. However, many preclinical studies show that 5-HT2C agonists counteract the addictive effects of drugs from several classes, suggesting this pharmacological property of classic hallucinogens may be significant. Drawing from a comprehensive analysis of preclinical behavior, neuroanatomy, and neurochemistry studies, this review builds rationale for this hypothesis, and also proposes a testable, neurobiological framework...
November 15, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27898427/cocaine-withdrawal-reduces-gamma-aminobutyric-acid-ergic-transmission-and-gephyrin-expression-at-medial-prefrontal-cortex-in-cocaine-conditioned-place-preference-rats-which-shows-increased-cocaine-seeking
#4
Wenqiong Yang, Hongsheng He, Yan Pan, Falan Duan, Dan Zhao, Bo Hu, Qingzhen Zhou, Wanhong Liu
AIMS: Chronic cocaine abuse decreases the inhibitory synaptic transmission via unknown mechanisms, while pharmacologically augmenting gamma-aminobutyric acid-ergic (GABAergic) transmission attenuates cocaine craving. Here, we propose that prolonged cocaine withdrawal downregulates GABAergic transmission and its important regulator gephyrin in medial prefrontal cortex (mPFC), in cocaine-conditioned place-preference (CPP) rats. METHODS: CPP test, patch clamp, and Western blot analysis are engaged to test this proposal...
November 30, 2016: European Addiction Research
https://www.readbyqxmd.com/read/27875549/the-synthetic-%C3%AE-nitrostyrene-derivative-cyt-rx20-inhibits-esophageal-tumor-growth-and-metastasis-via-pi3k-akt-and-stat3-pathways
#5
Wen-Chin Chiu, Yi-Chen Lee, Yu-Han Su, Yen-Yun Wang, Chun-Hao Tsai, Yi-An Hou, Chie-Hong Wang, Ying-Fong Huang, Chih-Jen Huang, Shah-Hwa Chou, Pei-Wen Hsieh, Shyng-Shiou F Yuan
The β-nitrostyrene family have been implicated for anti-cancer property. However, the pharmacological role of β-nitrostyrene in esophageal cancer remain unclear. Here, a β-nitrostyrene derivative, CYT-Rx20, was synthesized and assessed for its anti-cancer activities and underlying mechanism in esophageal cancer. CYT-Rx20 induced cytotoxicity in esophageal cancer cells by promoting apoptosis through activation of caspase cascade and poly(ADP-ribose) polymerase (PARP) cleavage. Besides, CYT-Rx20 inhibited esophageal cancer cell migration and invasion by regulating the expression of epithelial to mesenchymal transition (EMT) markers...
2016: PloS One
https://www.readbyqxmd.com/read/27852970/-food-addiction-as-a-new-behavioral-addiction
#6
Erika Eördögh, Mária Hoyer, Gábor Szeleczky
: Aim of review: To overview the new studies on food addiction and highlighting the analogies and differences between food and drug addiction. RESULTS: Recent studies on food addiction have demonstrated that the neurobiological circuits involved in the development of drug addiction also play a role in food consumption, and that the uptake of nutrients by the organism is under the control of numerous complicated peripheral and central signal-transducing networks...
2016: Psychiatria Hungarica: A Magyar Pszichiátriai Társaság Tudományos Folyóirata
https://www.readbyqxmd.com/read/27847973/metabotropic-glutamate-receptor-5-as-a-potential-target-for-smoking-cessation
#7
REVIEW
Cristiano Chiamulera, Claudio Marcello Marzo, David J K Balfour
RATIONALE: Most habitual smokers find it difficult to quit smoking because they are dependent upon the nicotine present in tobacco smoke. Tobacco dependence is commonly treated pharmacologically using nicotine replacement therapy or drugs, such as varenicline, that target the nicotinic receptor. Relapse rates, however, remain high, and there remains a need to develop novel non-nicotinic pharmacotherapies for the dependence that are more effective than existing treatments. OBJECTIVE: The purpose of this paper is to review the evidence from preclinical and clinical studies that drugs that antagonise the metabotropic glutamate receptor 5 (mGluR5) in the brain are likely to be efficacious as treatments for tobacco dependence...
November 16, 2016: Psychopharmacology
https://www.readbyqxmd.com/read/27846654/-synthetic-drugs-an-overview-of-important-and-newly-emerging-substances
#8
F Betzler, A Heinz, S Köhler
Background: Synthetic drug use and abuse are on the rise. Governmental institutions report a shift in consumption from natural drugs to synthetic drugs, and show an increase in confiscation, particularly of methamphetamine and newly identified psychoactive substances. In addition, the media report an alarming increase in the rate of consumption and casualties resulting from the use of drugs such as "crystal meth" and warn against a flood of this and other designer drugs from eastern European countries. Objectives: The present article gives an overview of current popular and widely used synthetic drugs, both classical substances (amphetamine, methamphetamine, MDMA) and new psychoactive substances ("designer drugs", "legal highs")...
November 2016: Fortschritte der Neurologie-Psychiatrie
https://www.readbyqxmd.com/read/27836553/how-much-alcohol-is-in-ketamine-s-antidepressant-action
#9
REVIEW
Udo Bonnet
Ketamine is approved to start and maintain anaesthesia or analgesia. Ketamine is also known to be neurotoxic and an old drug of abuse. Numerous studies have proven a rapid and strong antidepressant response (AR) following parenteral sub-anaesthetic ketamine doses when applied the first time to patients with treatment resistant unipolar or bipolar major depression. This rapid and robust AR is encouraging, though short-lived (usually up to seven days). There is growing evidence that repeated und escalating ketamine administrations exert longer-lasting AR than single infusions...
November 8, 2016: Life Sciences
https://www.readbyqxmd.com/read/27832755/experience-of-the-use-of-ketamine-to-manage-opioid-withdrawal-in-an-addicted-woman-a-case-report
#10
Laurence Lalanne, Chloe Nicot, Jean-Philippe Lang, Gilles Bertschy, Eric Salvat
BACKGROUND: Opioids are good painkillers, but many patients treated with opioids as painkillers developed a secondary addiction. These patients need to stop misusing opioids, but the mild-to-severe clinical symptoms associated with opioid withdrawal risk increasing their existing pain. In such cases, ketamine, which is used by anaesthetists and pain physicians to reduce opioid medication, may be an effective agent for managing opioid withdrawal. CASE PRESENTATION: We describe the case of a woman who developed a severe secondary addiction to opioids in the context of lombo-sciatic pain...
November 10, 2016: BMC Psychiatry
https://www.readbyqxmd.com/read/27802545/association-between-prescription-of-major-psychotropic-medications-and-violent-reoffending-after-prison-release
#11
Zheng Chang, Paul Lichtenstein, Niklas Långström, Henrik Larsson, Seena Fazel
Importance: Individuals released from prison have high rates of violent reoffending, and there is uncertainty about whether pharmacological treatments reduce reoffending risk. Objective: To investigate the associations between major classes of psychotropic medications and violent reoffending. Design, Setting, and Participants: This cohort study included all released prisoners in Sweden from July 1, 2005, to December 31, 2010, through linkage of population-based registers...
November 1, 2016: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/27744406/long-lasting-impairment-of-mglur5-activated-intracellular-pathways-in-the-striatum-after-withdrawal-of-cocaine-self-administration
#12
Hanne Mette Hoffmann, Nadine Crouzin, Estefanía Moreno, Noora Raivio, Silvia Fuentes, Peter J McCormick, Jordi Ortiz, Michel Vignes
BACKGROUND: Cocaine addiction continues to be a major heath concern, and despite public health intervention there is a lack of efficient pharmacological treatment options. A newly identified potential target are the group I metabotropic glutamate receptors (mGluR1/5), with allosteric modulators showing particular promise. METHODS: We evaluated the capacity of mGluR1/5 receptors to induce functional responses in ex vivo striatal slices from rats with 1) acute cocaine self-administration (CSA), 2) chronic CSA and 3) 60 days CSA withdrawal by westernblot and extracellular recordings of synaptic transmission...
October 15, 2016: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27729121/assessment-and-management-of-pain-in-pediatric-otolaryngology
#13
Maria Claudia Rodríguez, Perla Villamor, Tatiana Castillo
INTRODUCTION: Pain is a disease by itself and it's a public health concern of major implication in children, not just because of the emotional component of the child and his family, but also due to the potential morbidity and mortality involving it. A proper assessment of pain it's a challenge in the pediatric population, due to their lack of understanding and verbalization of hurt. Additionally, a satisfactory treatment of pediatric pain can be arduous due to a lack of clinical knowledge, insufficient pediatric research, and the fear to opioid side effects and addiction...
November 2016: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/27723910/neonatal-abstinence-syndrome-twelve-years-of-experience-at-a-regional-referral-center
#14
S Mücke, M Nagel, J P Siedentopf, C Bührer, D Hüseman
Background: Infants exposed to opiates antenatally display withdrawal symptoms after birth referred to as neonatal abstinence syndrome (NAS). Patients: A total of 366 newborns (166 females, 10 twins) from 361 mothers were diagnosed with NAS from 2000 to 2011 at a single large metropolitan referral center. Methods: Retrospective chart review of all newborn infants exposed to opiates in utero. Results: 20% were premature (gestational age<37 weeks), 32% were small-for-gestational-age (<10(th) percentile)...
October 10, 2016: Klinische Pädiatrie
https://www.readbyqxmd.com/read/27718509/role-of-wnt-%C3%AE-catenin-pathway-in-the-nucleus-accumbens-in-long-term-cocaine-induced-neuroplasticity-a-possible-novel-target-for-addiction-treatment
#15
S Cuesta, J Batuecas, M J Severin, A Funes, S B Rosso, A M Pacchioni
Cocaine addiction is a chronic relapsing disorder characterized by the loss of control over drug-seeking and taking, and continued drug use regardless of adverse consequences. Despite years of research, effective treatments for psychostimulant addiction have not been identified. Persistent vulnerability to relapse arises from a number of long lasting adaptations in the reward circuitry that mediate the enduring response to the drug. Recently, we reported that the activity of the canonical or Wnt/β-catenin pathway in the Prefrontal Cortex (PFC) is very important in the early stages of cocaine-induced neuroadaptations...
October 8, 2016: Journal of Neurochemistry
https://www.readbyqxmd.com/read/27711047/the-trace-amine-associated-receptor-1-agonist-ro5256390-blocks-compulsive-binge-like-eating-in-rats
#16
Antonio Ferragud, Adam D Howell, Catherine F Moore, Tina L Ta, Marius C Hoener, Valentina Sabino, Pietro Cottone
Compulsive, binge eating of highly palatable food constitutes a core feature of some forms of obesity and eating disorders, as well as of the recently proposed disorder of food addiction. Trace amine-associated receptor 1 (TAAR1) is a highly conserved G-protein-coupled receptor bound by endogenous trace amines. TAAR1 agonists have been shown to reduce multiple behavioral effects of drugs of abuse through their actions on the mesocorticolimbic system. In this study, we hypothesized that TAAR1 may have a role in compulsive, binge-like eating; we tested this hypothesis by assessing the effects of a TAAR1 agonist, RO5256390, in multiple excessive feeding-related behaviors induced by limiting access to a highly palatable diet in rats...
November 2, 2016: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27670244/psychostimulant-drugs-for-cocaine-dependence
#17
Xavier Castells, Ruth Cunill, Clara Pérez-Mañá, Xavier Vidal, Dolors Capellà
BACKGROUND: Cocaine dependence is a severe disorder for which no medication has been approved. Like opioids for heroin dependence, replacement therapy with psychostimulants could be an effective therapy for treatment. OBJECTIVES: To assess the effects of psychostimulants for cocaine abuse and dependence. Specific outcomes include sustained cocaine abstinence and retention in treatment. We also studied the influence of type of drug and comorbid disorders on psychostimulant efficacy...
September 27, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27648372/pet-imaging-reveals-sex-differences-in-kappa-opioid-receptor-availability-in-humans-in-vivo
#18
Aishwarya Vijay, Shuo Wang, Patrick Worhunsky, Ming-Qiang Zheng, Nabeel Nabulsi, Jim Ropchan, Suchitra Krishnan-Sarin, Yiyun Huang, Evan D Morris
Opioid receptors may play critical roles in alcoholism and other addictions, addiction withdrawal, and depression and are considered pharmacological targets for treatment of these conditions. Sex differences have been demonstrated in mu (MOR) and delta (DOR) opioid receptors in humans, in vivo. In addition, sex differences have been observed in efficacy of treatment targeting kappa opioid receptors (KOR). Our goal in the present study was to compare the availability of KOR (1) between healthy control (HC) men and women...
2016: American Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/27640177/toward-early-estimation-and-treatment-of-addiction-vulnerability-radial-arm-maze-and-n-acetyl-cysteine-before-cocaine-sensitization-or-nicotine-self-administration-in-neonatal-ventral-hippocampal-lesion-rats
#19
Kalyan N Rao, Alena M Sentir, Eric A Engleman, Richard L Bell, Leslie A Hulvershorn, Alan Breier, R Andrew Chambers
RATIONAL: Prefrontal cortical (PFC)-hippocampal-striatal circuits, interconnected via glutamatergic signaling, are dysfunctional in mental illnesses that involve addiction vulnerability. OBJECTIVES: In healthy and neurodevelopmentally altered rats, we examined how Radial Arm Maze (RAM) performance estimates addiction vulnerability, and how starting a glutamatergic modulating agent, N-acetyl cysteine (NAC) in adolescence alters adult mental illness and/or addiction phenotypes...
December 2016: Psychopharmacology
https://www.readbyqxmd.com/read/27623834/-cocaine-characteristics-and-addiction
#20
REVIEW
Katarzyna Girczys-Połedniok, Robert Pudlo, Magdalena Jarząb, Agnieszka Szymlak
Cocaine use leads to health, social and legal problems. The aim of this paper is to discuss cocaine action, addicts characteristics, use patterns and consequences, as well as addiction treatment methods. A literature review was based on the Medline, PubMed, Polish Medical Bibliography databases and the Silesian Library resources. The Police and Central Statistical Office statistics, as well as the World Health Organization, the European Monitoring Centre for Drugs and Drug Addiction and the National Office for Combating Drug Addiction reports were used...
2016: Medycyna Pracy
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