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Pharmacological treatment of addiction

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https://www.readbyqxmd.com/read/28551713/atomoxetine-effects-on-attentional-bias-to-drug-related-cues-in-cocaine-dependent-individuals
#1
Luca Passamonti, M Luijten, H Ziauddeen, I T S Coyle-Gilchrist, T Rittman, S A E Brain, R Regenthal, I H A Franken, B J Sahakian, E T Bullmore, T W Robbins, K D Ersche
RATIONALE: Biased attention towards drug-related cues and reduced inhibitory control over the regulation of drug-intake characterize drug addiction. The noradrenaline system has been critically implicated in both attentional and response inhibitory processes and is directly affected by drugs such as cocaine. OBJECTIVES: We examined the potentially beneficial effects of the noradrenaline reuptake inhibitor atomoxetine in improving cognitive control during two tasks that used cocaine- and non-cocaine-related stimuli...
May 27, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28534263/n-acetylaspartylglutamate-inhibits-heroin-self-administration-and-heroin-seeking-behaviors-induced-by-cue-or-priming-in-rats
#2
Huaqiang Zhu, Miaojun Lai, Weisheng Chen, Disen Mei, Fuqiang Zhang, Huifeng Liu, Wenhua Zhou
Activation of presynaptic group II metabotropic glutamate receptors (mGluR2/3) inhibits drug reward and drug-seeking behavior, but the role of N-acetylaspartylglutamate (NAAG), an agonist of endogenous mGluR2/3, in heroin reward and heroin-seeking behavior remained unclear. Here, we aimed to explore the effects of exogenous NAAG on heroin self-administration and heroin-seeking behavior. First, rats were trained to self-administer heroin under a fixed ratio 1 (FR1) schedule for 10 days, then received NAAG (50 or 100 μg/10 μL in each nostril) in the absence or presence of LY341495 (1 mg/kg, i...
May 22, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28531265/utility-of-nonhuman-primates-in-substance-use-disorders-research
#3
Matthew L Banks, Paul W Czoty, Sidney S Negus
Substance use disorders (i.e., drug addiction) constitute a global and insidious public health issue. Preclinical biomedical research has been invaluable in elucidating the environmental, biological, and pharmacological determinants of drug abuse and in the process of developing innovative pharmacological and behavioral treatment strategies. For more than 70 years, nonhuman primates have been utilized as research subjects in biomedical research related to drug addiction. There are already several excellent published reviews highlighting species differences in both pharmacodynamics and pharmacokinetics between rodents and nonhuman primates in preclinical substance abuse research...
May 20, 2017: ILAR Journal
https://www.readbyqxmd.com/read/28523544/drug-addiction-and-histone-code-alterations
#4
Hee-Dae Kim, Tanessa Call, Samantha Magazu, Deveroux Ferguson
Acute and prolonged exposure to drugs of abuse induces changes in gene expression, synaptic function, and neural plasticity in brain regions involved in reward. Numerous genes are involved in this process, and persistent changes in gene expression coincide with epigenetic histone modifications and DNA methylation. Histone modifications are attractive regulatory mechanisms, which can encode complex environmental signals in the genome of postmitotic cells, like neurons. Recently, it has been demonstrated that specific histone modifications are involved in addiction-related gene regulatory mechanisms, by a diverse set of histone-modifying enzymes and readers...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28502978/the-opioid-receptor-triple-agonist-dpi-125-produces-analgesia-with-less-respiratory-depression-and-reduced-abuse-liability
#5
Shou-Pu Yi, Qing-Hong Kong, Yu-Lei Li, Chen-Ling Pan, Jie Yu, Ben-Qiang Cui, Ying-Fei Wang, Guan-Lin Wang, Pei-Lan Zhou, Li-Li Wang, Ze-Hui Gong, Rui-Bin Su, Yue-Hai Shen, Gang Yu, Kwen-Jen Chang
Opioid analgesics remain the first choice for the treatment of moderate to severe pain, but they are also notorious for their respiratory depression and addictive effects. This study focused on the pharmacology of a novel opioid receptor mixed agonist DPI-125 and attempted to elucidate the relationship between the δ-, μ- and κ-receptor potency ratio and respiratory depression and abuse liability. Five diarylmethylpiperazine compounds (DPI-125, DPI-3290, DPI-130, KUST202 and KUST13T02) were selected for this study...
May 15, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28501425/the-effects-of-kratom-on-restraint-stress-induced-analgesia-and-its-mechanisms-of-action
#6
José Luis Vázquez López, Lorenz Schild, Thomas Günther, Stefan Schulz, Hartmud Neurath, Axel Becker
ETHNOPHARMACOLOGICAL RELEVANCE: Mitragyna speciosa and its extracts are called kratom (dried leaves, extract). They contain several alkaloids with an affinity for different opioid receptors. They are used in traditional medicine for the treatment of different diseases, as a substitute by opiate addicts, and to mitigate opioid withdrawal symptoms. Apart from their medical properties, they are used to enhance physical endurance and as a means of overcoming stress. PURPOSE: The aim of this study was to determine the mechanisms underlying the effects of kratom on restraint-stress-induced analgesia which occurs during or following exposure to a stressful or fearful stimulus...
May 10, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28495013/the-acttion-aps-aapm-pain-taxonomy-aaapt-multidimensional-approach-to-classifying-acute-pain-conditions
#7
Michael L Kent, Patrick J Tighe, Inna Belfer, Timothy J Brennan, Stephen Bruehl, Chad M Brummett, Chester C Buckenmaier, Asokumar Buvanendran, Robert I Cohen, Paul Desjardins, David Edwards, Roger Fillingim, Jennifer Gewandter, Debra B Gordon, Robert W Hurley, Henrik Kehlet, John D Loeser, Sean Mackey, Samuel A McLean, Rosemary Polomano, Siamak Rahman, Srinivasa Raja, Michael Rowbotham, Santhanam Suresh, Bernard Schachtel, Kristin Schreiber, Mark Schumacher, Brett Stacey, Steven Stanos, Knox Todd, Dennis C Turk, Steven J Weisman, Christopher Wu, Daniel B Carr, Robert H Dworkin, Gregory Terman
OBJECTIVE: With the increasing societal awareness of the prevalence and impact of acute pain, there is a need to develop an acute pain classification system that both reflects contemporary mechanistic insights and helps guide future research and treatment. Existing classifications of acute pain conditions are limiting, with a predominant focus on the sensory experience (eg, pain intensity) and pharmacologic consumption. Consequently, there is a need to more broadly characterize and classify the multidimensional experience of acute pain...
May 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28494249/evaluation-of-problematic-psychoactive-substances-use-in-people-placed-in-police-custody
#8
Marie Gérardin, Gabriel Guigand, Laura Wainstein, Pascale Jolliet, Caroline Victorri-Vigneau, Renaud Clément
INTRODUCTION AND AIMS: In France, the law states that any person held in custody could be examined by a doctor. The main objective of the medical examination is to give medical evidence of health compatibility with custody. This review identifies health risks such as addictive behaviour. We wanted to know which psychoactive substances are used in this particular population, and how problematic these uses are. DESIGN AND METHODS: A prospective, monocentric, open-ended study conducted via a structured questionnaire was carried out on detainees who reported having taken drugs or illegal substances...
May 2, 2017: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/28492960/dual-diagnosis-in-depression-treatment-recommendations
#9
Judit Tirado Muñoz, Adriana Farré, Joan Mestre-Pintó, Nestor Szerman, Marta Torrens
Comorbidity between substance use disorders (SUD) and major depression (MD) is the most common dual pathology in the field of addiction to substances and has prevalence rates ranging between 12% and 80%, which complicates the response to treatment and worsens the prognosis of patients. Differentiating between diagnoses of induced depressive episodes and primary depressive episodes concurrent to substance use is especially relevant for therapeutic management. This article presents the state of the art of the currently available pharmacologic treatments of comorbid depression in patients with SUD, taking into account the safety and risk of abuse of antidepressant drugs...
April 12, 2017: Adicciones
https://www.readbyqxmd.com/read/28492416/cannabinoid-1-receptor-blockade-in-the-dorsal-hippocampus-prevents-the-reinstatement-but-not-acquisition-of-morphine-induced-conditioned-place-preference-in-rats
#10
Xin Zhao, Li Yao, Fang Wang, Han Zhang, Li Wu
The cannabinoid 1 receptors (CB1Rs) signaling is strongly linked to conditioned rewarding effects of opiates. Learned associations between environmental contexts and discrete cues and drug use play an important role in the maintenance and/or relapse of morphine addiction. Although previous studies suggest that context-dependent morphine treatment alters endocannabinoid signaling and synaptic plasticity in the hippocampus, the role of endocannabinoid in morphine conditioned place preference (CPP) and reinstatement remains unknown...
May 10, 2017: Neuroreport
https://www.readbyqxmd.com/read/28492129/codeine-misuse-and-dependence-in-south-africa-perspectives-of-addiction-treatment-providers
#11
Charles D H Parry, Eileen Rich, Marie Claire Van Hout, Paolo Deluca
BACKGROUND: General practitioners are referring patients with codeine-related problems to specialist treatment facilities, but little is known about the addiction treatment providers, the kinds of treatment they provide, and whether training or other interventions are needed to strengthen this sector. OBJECTIVES: To investigate the perspectives of addiction treatment providers regarding treatment for codeine misuse or dependence. METHOD: Twenty addiction treatment providers linked to the South African Community Epidemiology Network on Drug Use and the South African Addiction Medicine Society were contacted telephonically and asked 20 questions...
April 25, 2017: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
https://www.readbyqxmd.com/read/28489501/smoking-cessation-treatment-for-patients-with-mental-disorders-using-cbt-and-combined-pharmacotherapy
#12
Aline Rodrigues Loreto, Carlos Felipe Cavalcanti Carvalho, Fernanda Piotto Fralonardo, Flavia Ismael, Arthur Guerra de Andrade, João Maurício Castaldelli-Maia
OBJECTIVES: To investigate smoking treatment effectiveness and retention in a population with and without mental disorders (MD). Participants received cognitive-behavioral therapy (CBT) plus nicotine patch alone or in combination with other medications (i.e., gum, bupropion, or nortriptyline) for smoking cessation treatment in a Brazilian Psychosocial Care Center unit (CAPS), taking into account sociodemographics and smoking profile covariates. METHODS: Comparison of treatment success (7-day point prevalence abstinence at the end of the treatment) and retention (presence of the individual in all of the 4 medical consultations and 6 group sessions) in two subsamples of patients with MD (n = 267) and without MD (n = 397) who were included in a 6-week treatment provided by a CAPS from 2007 to 2013...
May 10, 2017: Journal of Dual Diagnosis
https://www.readbyqxmd.com/read/28482098/the-acttion-aps-aapm-pain-taxonomy-aaapt-multidimensional-approach-to-classifying-acute-pain-conditions
#13
Michael L Kent, Patrick J Tighe, Inna Belfer, Timothy J Brennan, Stephen Bruehl, Chad M Brummett, Chester C Buckenmaier, Asokumar Buvanendran, Robert I Cohen, Paul Desjardins, David Edwards, Roger Fillingim, Jennifer Gewandter, Debra B Gordon, Robert W Hurley, Henrik Kehlet, John D Loeser, Sean Mackey, Samuel A McLean, Rosemary Polomano, Siamak Rahman, Srinivasa Raja, Michael Rowbotham, Santhanam Suresh, Bernard Schachtel, Kristin Schreiber, Mark Schumacher, Brett Stacey, Steven Stanos, Knox Todd, Dennis C Turk, Steven J Weisman, Christopher Wu, Daniel B Carr, Robert H Dworkin, Gregory Terman
Objective: With the increasing societal awareness of the prevalence and impact of acute pain, there is a need to develop an acute pain classification system that both reflects contemporary mechanistic insights and helps guide future research and treatment. Existing classifications of acute pain conditions are limiting, with a predominant focus on the sensory experience (e.g., pain intensity) and pharmacologic consumption. Consequently, there is a need to more broadly characterize and classify the multidimensional experience of acute pain...
May 1, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28479264/role-of-nitric-oxide-pathway-in-the-conditioned-rewarding-effects-of-mdma-in-mice
#14
M P García-Pardo, M Rodríguez-Arias, J Miñarro, M A Aguilar
It is estimated that 2.1 million young adults used MDMA/Ecstasy in the last year in Europe. Vulnerable subjects can develop dependence after MDMA abuse but currently there does not exist an effective treatment for this disorder. The nitric oxide (NO) pathway seems to have an important role on the rewarding effects of different drugs and has been proposed as a new pharmacological treatment for psychostimulant addiction. In the present study, we intend to evaluate whether the blockade of the NO synthesis (NOS) interferes with the rewarding effects of MDMA in the conditioned preference place (CPP) paradigm in young adult male mice...
May 4, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28477247/why-psychiatry-needs-3-4-methylenedioxymethamphetamine-a-child-psychiatrist-s-perspective
#15
REVIEW
Ben Sessa
Since the late 1980s the psychoactive drug 3,4-methylenedioxymethamphetamine (MDMA) has had a well-known history as the recreationally used drug ecstasy. What is less well known by the public is that MDMA started its life as a therapeutic agent and that in recent years an increasing amount of clinical research has been undertaken to revisit the drug's medical potential. MDMA has unique pharmacological properties that translate well to its proposed agent to assist trauma-focused psychotherapy. Psychological trauma-especially that which arises early in life from child abuse-underpins many chronic adult mental disorders, including addictions...
May 5, 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/28473458/effects-of-acute-and-chronic-treatments-with-d2-and-d3-receptor-ligands-on-cocaine-vs-food-choice-in-rats
#16
Morgane Thomsen, Andrew C Barrett, Paul Butler, S Stevens Negus, S Barak Caine
Dopamine D3 receptor ligands are potential medications for psychostimulant addiction. Medication assessment may benefit from preclinical studies that evaluate chronic medication effects on choice between an abused drug and an alternative, non-drug reinforcer. This study compared acute and chronic effects of dopamine D2- and D3-preferring ligands on choice between intravenous cocaine and palatable food in rats. Under baseline conditions, cocaine maintained dose-dependent increases in cocaine choice and reciprocal decreases in food choice...
May 4, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28462472/role-of-the-agranular-insular-cortex-in-contextual-control-over-cocaine-seeking-behavior-in-rats
#17
Amy A Arguello, Rong Wang, Carey M Lyons, Jessica A Higginbotham, Matthew A Hodges, Rita A Fuchs
RATIONALE: Environmental stimulus control over drug relapse requires the retrieval of context-response-cocaine associations, maintained in long-term memory through active reconsolidation processes. Identifying the neural substrates of these phenomena is important from a drug addiction treatment perspective. OBJECTIVES: The present study evaluated whether the agranular insular cortex (AI) plays a role in drug context-induced cocaine-seeking behavior and cocaine memory reconsolidation...
May 2, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28446883/in-vitro-and-in-vivo-profile-of-ppl-101-and-ppl-103-mixed-opioid-partial-agonist-analgesics-with-low-abuse-potential
#18
Taline V Khroyan, Andrea Cippitelli, Nicholas Toll, John A Lawson, William Crossman, Willma E Polgar, Lawrence Toll
Opiates are still the most effective and widely used treatments for acute and chronic pain. However, the problems associated with morphine and other standard opioid analgesics severely limit their effectiveness in the clinic. PPL-101 and PPL-103 derived from morphine and morphinan ring systems contain a chiral N-substituent, which confers it with a unique combination of high-binding affinities and partial agonist activities at mu, delta, and kappa opioid receptors, leading to unique in vivo pharmacology compared to other conventional opioids...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28444659/new-psychoactive-substances-nps-a-challenge-for-the-addiction-treatment-services
#19
Norbert Scherbaum, F Schifano, Udo Bonnet
Over the last few years, hundreds of new psychoactive substances (NPS) have been identified in Europe. Apart from some herbal compounds, NPS mainly include synthetic cannabinoids and a range of new synthetic stimulants (e. g., cathinones). Synthetic NPS are often developed whilst modifying the basic chemical (e. g., phenethylamine or tryptamine) structure. Although the pharmacology and toxicology of most NPS are hardly known, they are being offered, especially online, as "bath salts," as "incense mixtures," or under other misleading labels...
May 2017: Pharmacopsychiatry
https://www.readbyqxmd.com/read/28441678/the-addiction-recovery-clinic-a-novel-primary-care-based-approach-to-teaching-addiction-medicine
#20
Stephen R Holt, Nora Segar, Dana A Cavallo, Jeanette M Tetrault
PROBLEM: Substance use is highly prevalent in the United States, but little time in the curriculum is devoted to training internal medicine residents in addiction medicine. APPROACH: In 2014, the authors developed and launched the Addiction Recovery Clinic (ARC) to address this educational gap while also providing outpatient clinical services to patients with substance use disorders. The ARC is embedded within the residency primary care practice and is staffed by three to four internal medicine residents, two board-certified addiction medicine specialists, one chief resident, and one psychologist...
May 2017: Academic Medicine: Journal of the Association of American Medical Colleges
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