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Opiate dependence

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https://www.readbyqxmd.com/read/28206989/il-4-mediated-by-hsv-vector-suppresses-morphine-withdrawal-response-through-decreasing-tnf%C3%AE-nr2b-and-pc-ebp%C3%AE-in-the-periaqueductal-gray-in-rats
#1
H Yi, T Iida, S Liu, D Ikegami, Q Liu, A Iida, D A Lubarsky, S Hao
Chronic opiates induce the development of physical dependence. Opioid physical dependence characterized by withdrawal symptoms, may have very long-lasting effects on the motivation for reward, including the incubation of cue-induced drug-seeking behavior. Elucidation of the mechanisms involved in physical dependence is crucial to developing more effective treatment strategies for opioid dependence. Chronic morphine induces production of proinflammatory cytokines in regional-specific sites of the brain. Interleukin-4 (IL-4) is a prototypical anti-inflammatory cytokine that globally suppresses proinflammatory cytokines...
February 16, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28199203/neurogenetics-of-acute-and-chronic-opiate-opioid-abstinence-treating-symptoms-and-the-cause
#2
Kenneth Blum, Mark S Gold, William Jacobs, William Vaughn McCall, Marcelo Febo, David Baron, Kristina Dushaj, Zsolt Demetrovics, Rajendra D Badgaiyan
This review begins with a comprehensive history of opioid dependence and treatment in the United States. The focus is an evidence-based treatment model for opioid/opiate dependent individuals. The role of reward genetic polymorphisms and the epigenetic modifications that lead to vulnerability to use and misuse of opiates/opioid to treat pain are reviewed. The neurochemical mechanisms of acute opiate withdrawal and opiate/opioid reward mechanisms are explored with a goal of identifying specific treatment targets...
March 1, 2017: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/28185645/mu-opioid-receptors-in-gamma-aminobutyric-acidergic-forebrain-neurons-moderate-motivation-for-heroin-and-palatable-food
#3
Pauline Charbogne, Olivier Gardon, Elena Martín-García, Helen L Keyworth, Aya Matsui, Anna E Mechling, Thomas Bienert, Taufiq Nasseef, Anne Robé, Luc Moquin, Emmanuel Darcq, Sami Ben Hamida, Patricia Robledo, Audrey Matifas, Katia Befort, Claire Gavériaux-Ruff, Laura-Adela Harsan, Dominik von Elverfeldt, Jurgen Hennig, Alain Gratton, Ian Kitchen, Alexis Bailey, Veronica A Alvarez, Rafael Maldonado, Brigitte L Kieffer
BACKGROUND: Mu opioid receptors (MORs) are central to pain control, drug reward, and addictive behaviors, but underlying circuit mechanisms have been poorly explored by genetic approaches. Here we investigate the contribution of MORs expressed in gamma-aminobutyric acidergic forebrain neurons to major biological effects of opiates, and also challenge the canonical disinhibition model of opiate reward. METHODS: We used Dlx5/6-mediated recombination to create conditional Oprm1 mice in gamma-aminobutyric acidergic forebrain neurons...
December 26, 2016: Biological Psychiatry
https://www.readbyqxmd.com/read/28183374/experiences-of-codeine-use-misuse-and-dependence-application-of-liese-and-franz-s-cognitive-developmental-model-of-substance-abuse
#4
Marie Claire Van Hout, Ian Norman, Eileen Rich, Michael Bergin
BACKGROUND: Misuse of codeine-containing medicines is an emerging public health issue. AIMS: We present the application of Liese and Franz's (1996) cognitive developmental model of substance abuse to the trajectory from legitimate codeine use for pain, towards that of therapeutic and other forms of misuse, and physical and psychological dependence. It illustrates a cognitive behavioural analysis of the experiences of codeine misusers - which 'surfaces' the specific beliefs, thoughts, emotions and behaviours of this group of hidden codeine dependent individuals, who are distinct and unique from other opioid-dependent cohorts...
February 10, 2017: Behavioural and Cognitive Psychotherapy
https://www.readbyqxmd.com/read/28167137/deletion-of-rictor-in-catecholaminergic-neurons-alters-locomotor-activity-and-ingestive-behavior
#5
Sophia Kaska, Rebecca Brunk, Vedrana Bali, Megan Kechner, Michelle S Mazei-Robison
While the etiology of depression is not fully understood, increasing evidence from animal models suggests a role for the ventral tegmental area (VTA) in pathogenesis. In this paper, we investigate the potential role of VTA mechanistic target of rapamycin 2 (TORC2) signaling in mediating susceptibility to chronic social defeat stress (CSDS), a well-established mouse model of depression. Utilizing genetic and viral knockout of Rictor (rapamycin-insensitive companion of target of rapamycin), a requisite component of TORC2, we demonstrate that decreasing Rictor-dependent TORC2 signaling in catecholaminergic neurons, or within the VTA specifically, does not alter susceptibility to CSDS...
February 3, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28161142/factors-associated-with-using-opiates-while-under-extended-release-naltrexone-blockade-a-descriptive-pilot-study
#6
Brantley P Jarvis, Anthony DeFulio, Lauren Long, August F Holtyn, Annie Umbricht, Michael Fingerhood, George E Bigelow, Kenneth Silverman
BACKGROUND AND AIM: Extended-release naltrexone (XR-NTX) blocks the effects of opioids for 4weeks, yet many patients continue to use them. To learn more about why this occurs, we collected self-reports on subjective effects and drug use factors from participants' most recent heroin/opiate use while under XR-NTX blockade. METHODS: Participants (n=38) were unemployed, heroin-dependent adults enrolled in a randomized controlled trial evaluating employment-based incentives to promote adherence to XR-NTX...
December 24, 2016: Journal of Substance Abuse Treatment
https://www.readbyqxmd.com/read/28134928/blocking-microglial-pannexin-1-channels-alleviates-morphine-withdrawal-in-rodents
#7
Nicole E Burma, Robert P Bonin, Heather Leduc-Pessah, Corey Baimel, Zoe F Cairncross, Michael Mousseau, Jhenkruthi Vijaya Shankara, Patrick L Stemkowski, Dinara Baimoukhametova, Jaideep S Bains, Michael C Antle, Gerald W Zamponi, Catherine M Cahill, Stephanie L Borgland, Yves De Koninck, Tuan Trang
Opiates are essential for treating pain, but termination of opiate therapy can cause a debilitating withdrawal syndrome in chronic users. To alleviate or avoid the aversive symptoms of withdrawal, many of these individuals continue to use opiates. Withdrawal is therefore a key determinant of opiate use in dependent individuals, yet its underlying mechanisms are poorly understood and effective therapies are lacking. Here, we identify the pannexin-1 (Panx1) channel as a therapeutic target in opiate withdrawal...
January 30, 2017: Nature Medicine
https://www.readbyqxmd.com/read/28104434/effects-of-human-opiorphin-on-food-intake-and-water-intake-in-mice-following-central-administration
#8
Yong Chen, Xiao-Zhu Tian, Lu Bai, Ze-Qi Liu, Xing-Peng Xiao, Pu Liu, Xiang-Kai Li
Human opiorphin plays an important pharmacological functions in rats or mice. The present study was performed to investigate effects and underlying mechanism of central injected opiorphin on food intake and water intake in mice. Intracerebroventricularly (i.c.v.) administered opiorphin (5-20μg/kg) dose-dependently suppressed food intake in fasted mice, but had no influence on food intake in freely feeding mice. The cumulative food intake was significantly decreased at 60min after injection of 10 and 20μg/kg opiorphin and the food intake was significantly reduced during the 20-60min period after treatment...
January 16, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28081197/morphine-withdrawal-modifies-prion-protein-expression-in-rat-hippocampus
#9
Vincenzo Mattei, Stefano Martellucci, Francesca Santilli, Valeria Manganelli, Tina Garofalo, Niccolò Candelise, Alessandra Caruso, Maurizio Sorice, Sergio Scaccianoce, Roberta Misasi
The hippocampus is a vulnerable brain structure susceptible to damage during aging and chronic stress. Repeated exposure to opioids may alter the brain so that it functions normally when the drugs are present, thus, a prolonged withdrawal might lead to homeostatic changes headed for the restoration of the physiological state. Abuse of morphine may lead to Reacting Oxygen Species-induced neurodegeneration and apoptosis. It has been proposed that during morphine withdrawal, stress responses might be responsible, at least in part, for long-term changes of hippocampal plasticity...
2017: PloS One
https://www.readbyqxmd.com/read/28072037/benzodiazepine-maintenance-in-opiate-substitution-treatment-good-or-bad-a-retrospective-primary-care-case-note-review
#10
Adam Bakker, Emmanuel Streel
BACKGROUND: Co-prescribing benzodiazepines to patients in opiate substitution treatment is controversial and often alleged to increase mortality. In an inner-London general practice, patients with problematic benzodiazepine co-dependence were allowed benzodiazepine maintenance treatment (BMT) since 1994, providing an opportunity for analysis. METHOD: 1) Case-note review of all 278 opiate substitution treatment patients, accruing 1289 patient treatment years; 46% had concurrent BMT...
January 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28059434/assessment-of-abuse-liability-of-tramadol-among-experienced-drug-users-double-blind-crossover-randomized-controlled-trial
#11
Mrinmay Das, Raka Jain, Anju Dhawan, Amandeep Kaur
BACKGROUND: Tramadol is a widely used opioid analgesic. Different preclinical, clinical, and postmarketing surveillance studies show conflicting results regarding abuse potential of this drug. METHODS: A randomized double-blind complete crossover study was conducted at National Drug Dependence Treatment Centre, All India Institute of Medical Sciences, New Delhi. Total subjects were 10, comprising total 120 observations (each subject assessed at baseline, 5, 45, and 240 minutes)...
November 2016: Journal of Opioid Management
https://www.readbyqxmd.com/read/28050185/comparing-acceptance-and-commitment-group-therapy-and-12-steps-narcotics-anonymous-in-addict-s-rehabilitation-process-a-randomized-controlled-trial
#12
Manoochehr Azkhosh, Ali Farhoudianm, Hemn Saadati, Fateme Shoaee, Leila Lashani
Objective: Substance abuse is a socio-psychological disorder. The aim of this study was to compare the effectiveness of acceptance and commitment therapy with 12-steps Narcotics Anonymous on psychological well-being of opiate dependent individuals in addiction treatment centers in Shiraz, Iran. Method: This was a randomized controlled trial. Data were collected at entry into the study and at post-test and follow-up visits. The participants were selected from opiate addicted individuals who referred to addiction treatment centers in Shiraz...
October 2016: Iranian Journal of Psychiatry
https://www.readbyqxmd.com/read/28042871/acute-d3-antagonist-gsk598809-selectively-enhances-neural-response-during-monetary-reward-anticipation-in-drug-and-alcohol-dependence
#13
Anna Murphy, Liam J Nestor, John McGonigle, Louise Paterson, Venkataramana Boyapati, Karen D Ersche, Remy Flechais, Shankar Kuchibatla, Antonio Metastasio, Csaba Orban, Filippo Passetti, Laurence Reed, Dana Smith, John Suckling, Eleanor Taylor, Trevor W Robbins, Anne Lingford-Hughes, David J Nutt, John Fw Deakin, Rebecca Elliott
: Evidence suggests that disturbances in neurobiological mechanisms of reward and inhibitory control maintain addiction and provoke relapse during abstinence. Abnormalities within the dopamine system may contribute to these disturbances and pharmacologically targeting the D3 dopamine receptor (DRD3) is therefore of significant clinical interest. We used functional magnetic resonance imaging to investigate the acute effects of the DRD3 antagonist GSK598809 on anticipatory reward processing, using the monetary incentive delay task (MIDT), and response inhibition using the go/no-go task (GNGT)...
January 2, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28012859/endogenous-opiates-and-behavior-2015
#14
REVIEW
Richard J Bodnar
This paper is the thirty-eighth consecutive installment of the annual review of research concerning the endogenous opioid system. It summarizes papers published during 2015 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior, and the roles of these opioid peptides and receptors in pain and analgesia, stress and social status, tolerance and dependence, learning and memory, eating and drinking, drug abuse and alcohol, sexual activity and hormones, pregnancy, development and endocrinology, mental illness and mood, seizures and neurologic disorders, electrical-related activity and neurophysiology, general activity and locomotion, gastrointestinal, renal and hepatic functions, cardiovascular responses, respiration and thermoregulation, and immunological responses...
February 2017: Peptides
https://www.readbyqxmd.com/read/28009632/anti-nerve-growth-factor-therapy-increases-spontaneous-day-night-activity-in-mice-with-orthopedic-surgery-induced-pain
#15
Lisa A Majuta, Jean-Marc G Guedon, Stefanie A T Mitchell, Michael H Ossipov, Patrick W Mantyh
Total knee arthroplasty (TKA) and total hip arthroplasty (THA) are two of the most common and successful surgical interventions to relieve osteoarthritis pain. Control of postoperative pain is critical for patients to fully participate in the required physical therapy which is the most influential factor in effective postoperative knee rehabilitation. Currently opiates are a mainstay for managing postoperative orthopedic surgery pain including TKA/THA pain. Recently, issues including efficacy, dependence, overdose and death from opiates have made clinicians and researchers more critical of use of opioids for treating non-malignant skeletal pain...
December 15, 2016: Pain
https://www.readbyqxmd.com/read/28007501/synergistic-attenuation-of-chronic-pain-using-mu-opioid-and-cannabinoid-receptor-2-agonists
#16
Shaness A Grenald, Madison A Young, Yue Wang, Michael H Ossipov, Mohab M Ibrahim, Tally M Largent-Milnes, Todd W Vanderah
The misuse of prescription opiates is on the rise with combination therapies (e.g. acetaminophen or NSAIDs) resulting in severe liver and kidney damage. In recent years, cannabinoid receptors have been identified as potential modulators of pain and rewarding behaviors associated with cocaine, nicotine and ethanol in preclinical models. Yet, few studies have identified whether mu opioid agonists and CB2 agonists act synergistically to inhibit chronic pain while reducing unwanted side effects including reward liability...
December 20, 2016: Neuropharmacology
https://www.readbyqxmd.com/read/27984493/anti-nerve-growth-factor-therapy-increases-spontaneous-day-night-activity-in-mice-with-orthopedic-surgery-induced-pain
#17
Lisa A Majuta, Jean-Marc G Guedon, Stefanie A T Mitchell, Michael H Ossipov, Patrick W Mantyh
Total knee arthroplasty (TKA) and total hip arthroplasty (THA) are two of the most common and successful surgical interventions to relieve osteoarthritis pain. Control of postoperative pain is critical for patients to fully participate in the required physical therapy which is the most influential factor in effective postoperative knee rehabilitation. Currently opiates are a mainstay for managing postoperative orthopedic surgery pain including TKA/THA pain. Recently, issues including efficacy, dependence, overdose and death from opiates have made clinicians and researchers more critical of use of opioids for treating non-malignant skeletal pain...
December 15, 2016: Pain
https://www.readbyqxmd.com/read/27979929/comparative-evaluation-of-drug-deposition-in-hair-samples-collected-from-different-anatomical-body-sites
#18
Manolis N Tzatzarakis, Athanasios K Alegakis, Matthaios P Kavvalakis, Elena Vakonaki, Polychronis D Stivaktakis, Katerina Kanaki, Alexander I Vardavas, Emmanouil G Barbounis, Aristidis M Tsatsakis
In this study, we focused on the validation of a method for the simultaneous detection and quantification of cannabinoids, cocaine and opiates in hair as well as on the distribution of the drugs deposition in hair collected from different anatomical body sites. The proposed analytical procedure was validated for various parameters such as selectivity, linearity, limit of quantification, precision, accuracy, matrix effect and recovery. Four hundred and eighty-one samples were collected during 2010-2015 from 231 drug abusers...
December 15, 2016: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/27974903/morphine-antidependence-of-erythroxylum-cuneatum-miq-kurz-in-neurotransmission-processes-in-vitro
#19
Noor Azuin Suliman, Mohamad Aris Mohd Moklas, Che Norma Mat Taib, Mohd Ilham Adenan, Mohamad Taufik Hidayat Baharuldin, Rusliza Basir, Zulkhairi Amom
Opiate abuse has been studied to cause adaptive changes observed in the presynaptic release and the mediated-synaptic plasticity proteins. The involvement of neuronal SNARE proteins reveals the role of the neurotransmitter release in expressing the opioid actions. The present study was designed to determine the effect of the alkaloid extract of Erythroxylum cuneatum (E. cuneatum) against chronic morphine and the influences of E. cuneatum on neurotransmission processes observed in vitro. The human neuroblastoma cell line, SK-N-SH, was treated with the morphine, methadone, or E...
2016: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/27974484/buprenorphine-norbuprenorphine-r-methadone-and-s-methadone-upregulate-bcrp-abcg2-expression-by-activating-aryl-hydrocarbon-receptor-in-human-placental-trophoblasts
#20
Naveen K Neradugomma, Michael Z Liao, Qingcheng Mao
Opioid dependence during pregnancy is a rising concern. Maintaining addicted pregnant women on long-acting opioid receptor agonist is the most common strategy to manage drug abuse in pregnant women. Methadone (MET) and buprenorphine (BUP) are widely prescribed for opiate maintenance therapy. Norbuprenorphine (NBUP) is the primary active metabolite of BUP. These medications can cross the placenta to the fetus, leading to postpartum neonatal abstinence syndrome. Despite their use during pregnancy, little is known about the cellular changes in the placenta brought about by these drugs...
March 2017: Molecular Pharmacology
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