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Opiate dependence

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https://www.readbyqxmd.com/read/29141650/neuropsychological-function-is-improved-among-opioid-dependent-adults-who-adhere-to-opiate-agonist-treatment-with-buprenorphine-naloxone-a-preliminary-study
#1
Travis M Scott, Monica Rivera Mindt, Chinazo O Cunningham, Franchesca Arias, Kelly Coulehan, Aprille Mangalonzo, Pat Olsen, Julia H Arnsten
BACKGROUND: Among persons with opioid use disorder (OUD), neuropsychological dysfunction is associated with depression, and better neuropsychological function is associated with opioid abstinence. However, it is unknown whether depressive symptomatology or adherence to opiate agonist treatment are associated with neuropsychological change over time. METHODS: We recruited 20 buprenorphine/naloxone-treated adults with OUD (M Age = 45.2 years [SD = 8.1]; 25% female) to complete baseline and 6 month visits containing a neuropsychological test battery and self-reported measures of depressive symptomatology and medication adherence...
November 15, 2017: Substance Abuse Treatment, Prevention, and Policy
https://www.readbyqxmd.com/read/29112770/interactive-effects-of-morphine-and-dopamine-receptor-agonists-on-spatial-recognition-memory-in-mice
#2
Yanmei Chen, Yu Fu, Yingjie Ann, Jianhong Wang, Jichuan Zhang
Both opiates and dopamine play important roles in learning and memory. Although synergistic action between these two neurotransmitters has been found, their functional roles remain unclear. Here, low dose morphine (2.5 mg/kg) and low dose dopamine receptor agonists (apomorphine: 0.05 mg/kg; SKF38393: 0.01 mg/kg; bromocriptine: 0.05 mg/kg), which have no effects on spatial recognition memory, were injected intraperitoneally into mice 30 min before a memory test in a two-trial recognition Y-maze. The Y-maze is based on the innate tendency of rodents to explore novel environments and is therefore suitable for exploring the effects of morphine on learning and memory...
November 7, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29111854/the-effect-of-morphine-upon-dna-methylation-in-ten-regions-of-the-rat-brain
#3
Timothy M Barrow, Hyang-Min Byun, Xinyan Li, Chris Smart, Yong-Xiang Wang, Yacong Zhang, Andrea A Baccarelli, Liqiong Guo
Morphine is one of the most effective analgesics in medicine. However, its use is associated with the development of tolerance and dependence. Recent studies demonstrating epigenetic changes in the brain after exposure to opiates have provided insight into mechanisms possibly underlying addiction. In this study, we sought to identify epigenetic changes in ten regions of the rat brain following acute and chronic morphine exposure. We analyzed DNA methylation of six nuclear-encoded genes implicated in brain function (Bdnf, Comt, Il1b, Il6, Nr3c1, and Tnf) and three mitochondrially-encoded genes (Mtco1, Mtco2, and Mtco3), and measured global 5-methylcytosine (5mC) and 5-hydroxymethylcytosine (5hmC) levels...
November 7, 2017: Epigenetics: Official Journal of the DNA Methylation Society
https://www.readbyqxmd.com/read/29111148/effects-of-opioid-and-nonopioid-analgesics-on-canine-wheal-formation-and-cultured-human-mast-cell-degranulation
#4
Eric Schmidt-Rondon, Zhenping Wang, Shelle A Malkmus, Anna Di Nardo, Keith Hildebrand, Linda Page, Tony L Yaksh
Mast cell (MC) degranulation has been implicated in the side effect profile of a variety of clinically useful agents. Thus, after intrathecal delivery, formation of space-occupying, meningeally-derived masses may be related to local MC degranulation. We systematically characterized degranulating effects of opioid and nonopioid analgesics on cutaneous flares in the dog and in primary human MC (hMC) cultures. METHODS: Dogs were anesthetized with IV propofol and received intradermal (ID) injections (50μL)...
October 27, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29104320/earning-spending-and-drug-use-in-a-therapeutic-workplace
#5
Shrinidhi Subramaniam, Anthony DeFulio, Brantley P Jarvis, August F Holtyn, Kenneth Silverman
Drug addiction is a chronic, relapsing health problem that is associated with the degree to which individuals choose small, immediate monetary outcomes over larger, delayed outcomes. This study was a secondary analysis exploring the relation between financial choices and drug use in opioid-dependent adults in a therapeutic workplace intervention. Sixty-seven participants were randomly assigned to a condition in which access to paid job training was contingent upon naltrexone adherence (N = 35) or independent of naltrexone adherence (N = 32)...
June 2017: Psychological Record
https://www.readbyqxmd.com/read/29103663/takotsubo-cardiomyopathy-precipitated-by-opiate-withdrawal
#6
Peter C Olson, Vratika Agarwal, James C Lafferty, Soad Bekheit
INTRODUCTION: Takotsubo Cardiomyopathy is a transient non-ischemic cardiomyopathy usually characterized by apical ballooning of the left ventricle, with electrocardiographic changes and enzyme release, without evidence of obstructive coronary artery disease. Typically seen in stress induced situations, in post-menopausal females, this condition may have a predilection for patients with dependency disorders. CASE: The following is a case in which Takotsubo Cardiomyopathy was induced by withdrawal from opiate medications...
November 2, 2017: Heart & Lung: the Journal of Critical Care
https://www.readbyqxmd.com/read/29064909/pexacerfont-as-a-crf1-antagonist-for-the-treatment-of-withdrawal-symptoms-in-men-with-heroin-methamphetamine-dependence-a-randomized-double-blind-placebo-controlled-clinical-trial
#7
Mohammad-Javad Morabbi, Emran Razaghi, Ehsan Moazen-Zadeh, Hamideh Safiaghdam, Mohamad R Zarrindast, Nasim Vousoghi, Shahin Akhondzadeh
We assessed the efficacy of pexacerfont, a CRF1 antagonist, for the treatment of withdrawal symptoms. In this randomized, double-blind, placebo-controlled clinical trial, male patients with amphetamine or opioid dependence, on the basis of the Diagnostic and Statistical Manual of Mental Disorders, 4th ed., Text Revision (DSM-IV-TR), in the age range 18-55 years, received either pexacerfont or placebo (300, 200, and 100 mg/day in the first, second, and third week, respectively). No antidepressants, behavioral interventions, or substitution therapy were administered...
October 23, 2017: International Clinical Psychopharmacology
https://www.readbyqxmd.com/read/29051703/buprenorphine-naloxone-maintenance-therapy-an-observational-retrospective-report-on-the-effect-of-dose-on-18%C3%A2-months-retention-in-an-office-based-treatment-program
#8
Theodore V Parran, A G Mace, Yael J Dahan, Christopher A Adelman, Mykola Kolganov
CONTEXT AND OBJECTIVE: Buprenorphine has been available with few reports of the dose range necessary to adequately maintain patients. We report on the effect of 8 mg/d versus 16 mg/d of buprenorphine on long-term patient retention in office-based opioid maintenance (OBOMT). DESIGN SETTING AND PARTICIPANTS: Case series, at an urban hospital-based primary care clinic providing OBOMT to 157 opiate-dependent, low socioeconomic status, uninsured, nonhomeless patients...
2017: Substance Abuse: Research and Treatment
https://www.readbyqxmd.com/read/29044798/the-impact-of-substance-use-disorders-on-clinical-outcomes-in-older-adult-psychiatric-inpatients
#9
Scott D Lane, Sabrina C da Costa, Antonio L Teixeira, Charles F Reynolds, Breno S Diniz
OBJECTIVE: To examine associations among substance use disorder (SUD) and measures of length of stay (LOS) and non-psychiatric medical comorbidity (MEDCO) in older-adult inpatients with serious mental illness (SMI), hypothesizing SUD would be related to worse clinical outcomes. METHODS: A cross-sectional study analyzed medical records from 2010 to 2016 of 7258 inpatients with SMI ≥ age 50, obtained from a 274-bed psychiatric hospital. Descriptive analyses examined prevalence rates for SUD status (+/-), individual drug classes, and total number of SUDs (polysubstance use disorders)...
October 18, 2017: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/29035706/serious-suicide-attempts-in-outpatients-with-multiple-substance-use-disorders
#10
R Icick, E Karsinti, J-P Lépine, V Bloch, G Brousse, F Bellivier, F Vorspan
BACKGROUND: Suicide is a major public health concern and suicide attempts (SA) are frequent and burdensome in people suffering from substance use disorders (SUDs). In particular, serious SAs are a preoccupying form of attempt, which remain largely overlooked in these populations, especially regarding basic risk factors such as gender, addictive comorbidity and substance use patterns. Thus, we undertook a gender-specific approach to identify the risk factors for serious SAs in outpatients with multiple SUDs...
September 23, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28986608/opiate-dependence-induces-cell-type-specific-plasticity-of-intrinsic-membrane-properties-in-the-rat-juxtacapsular-bed-nucleus-of-stria-terminalis-jcbnst
#11
Walter Francesconi, Attila Szücs, Fulvia Berton, George F Koob, Leandro F Vendruscolo, Pietro Paolo Sanna
RATIONALE: Drugs of abuse can alter circuit dynamics by modifying synaptic efficacy and/or the intrinsic membrane properties of neurons. The juxtacapsular subdivision of the bed nucleus of stria terminalis (jcBNST) has unique connectivity that positions it to integrate cortical and amygdala inputs and provide feed-forward inhibition to the central nucleus of the amygdala (CeA), among other regions. In this study, we investigated changes in the synaptic and intrinsic properties of neurons in the rat jcBNST during protracted withdrawal from morphine dependence using a combination of conventional electrophysiological methods and the dynamic clamp technique...
December 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28958905/-uro-and-nephrotoxic-effects-of-drugs-of-abuse-literature-review-and-pharmaco-epidemiological-survey-in-france-and-in-the-marseille-area
#12
Marion Gully, Élisabeth Frauger, Michel Spadari, Liselotte Pochard, Vanessa Pauly, Fanny Romain, Bertrand Gondouin, Marion Sallée, Julie Moussi-Frances, Stéphane Burtey, Bertrand Dussol, Laurent Daniel, Joëlle Micallef, Noémie Jourde-Chiche
A great diversification of drugs of abuse has been observed in recent years, both in the populations using them and in the types of drugs. Although dependency and psychiatric disorders associated with the abuse of these substances is well known, somatic complications, uro-nephrotoxicity in particular, are less recognized. We propose here an overview of the products used by drugs abusers in France, through the analysis of the national pharmaco-epidemiological study Observation des produits psychotropes illicites ou détournés de leur utilisation médicamenteuse (OPPIDUM)...
September 25, 2017: Néphrologie & Thérapeutique
https://www.readbyqxmd.com/read/28936080/maintainence-treatment-of-opioid-dependence-with-tramadol
#13
Siddharth Sarkar, Mohit Varshney, Vaibhav Patil, Rakesh Lal
BACKGROUND: Although tramadol has been used in the management of acute withdrawal in patients with opioid dependence, its use for maintenance treatment as a harm reduction approach has not been assessed systematically. This case series describes patients with opioid dependence who were treated with tramadol for long-term maintenance. METHODS: Patients with opioid dependence who received treatment at the National Drug Dependence Treatment Centre of All India Institute of Medical Sciences, New Delhi, were included in the study...
August 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28932964/treatment-strategies-for-the-opioid-dependent-patient
#14
REVIEW
Shweta Teckchandani, Meredith Barad
PURPOSE OF REVIEW: This review is intended to help the headache physician think through and plan for management issues concerning the use of opioids. We ask the headache physician to consider if there are instances where prescribing or continuing prescriptions of opiates is plausible, and if so, how can the physician proceed as safely as possible. Our goal is to start a conversation regarding the inevitable encounter with a patient on opiates or requesting opiates. RECENT FINDINGS: The use of opiates in our society has reached a crisis in staggering death and addiction rates...
September 20, 2017: Current Pain and Headache Reports
https://www.readbyqxmd.com/read/28893589/leptin-status-alters-buprenorphine-induced-antinociception-in-obese-mice-with-dysfunctional-leptin-receptors
#15
Zachary Glovak, Sara Mihalko, Helen A Baghdoyan, Ralph Lydic
Buprenorphine is an opiate used for pain management and to treat opiate addiction. The cytokine leptin can modulate nociception, but the extent to which buprenorphine-induced antinociception varies as a function of leptin signaling has not been characterized. Four congenic mouse lines with phenotypes that include differences in body weight and leptin status were used to test the hypothesis that the antinociceptive effects of buprenorphine vary as function of sex and leptin signaling. Each mouse line was comprised of males (n=12) and females (n=12) for a total of 96 animals...
November 1, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28885516/treating-acute-pain-in-the-opiate-dependent-patient
#16
Coleen Dever
Opioid drugs, including prescription as well as heroin, have come to the national spotlight due to the unprecedented rate of overdose and addiction. The Centers for Disease Control and Prevention (CDC) has termed this problem as an "epidemic" that has reached record numbers of deaths in 2014. Approximately half of these deaths are the result from prescribed opioids. Also on the rise are the numbers of individuals who are diagnosed with chronic pain and are treated with opioids, methadone and buprenorphine. Individuals currently taking opioids for chronic pain confound the treatment of acute pain after traumatic injury...
September 2017: Journal of Trauma Nursing: the Official Journal of the Society of Trauma Nurses
https://www.readbyqxmd.com/read/28861516/cannabis-as-a-substitute-for-opioid-based-pain-medication-patient-self-report
#17
Amanda Reiman, Mark Welty, Perry Solomon
Introduction: Prescription drug overdoses are the leading cause of accidental death in the United States. Alternatives to opioids for the treatment of pain are necessary to address this issue. Cannabis can be an effective treatment for pain, greatly reduces the chance of dependence, and eliminates the risk of fatal overdose compared to opioid-based medications. Medical cannabis patients report that cannabis is just as effective, if not more, than opioid-based medications for pain. Materials and Methods: The current study examined the use of cannabis as a substitute for opioid-based pain medication by collecting survey data from 2897 medical cannabis patients...
2017: Cannabis and Cannabinoid Research
https://www.readbyqxmd.com/read/28861501/palmitoylethanolamide-modulates-gpr55-receptor-signaling-in-the-ventral-hippocampus-to-regulate-mesolimbic-dopamine-activity-social-interaction-and-memory-processing
#18
Cecilia Kramar, Michael Loureiro, Justine Renard, Steven R Laviolette
Introduction: The GPR55 receptor has been identified as an atypical cannabinoid receptor and is implicated in various physiological processes. However, its functional role in the central nervous system is not currently understood. The presence of GPR55 receptor in neural regions such as the ventral hippocampus (vHipp), which is critical for cognition, recognition memory, and affective processing, led us to hypothesize that intra-vHipp GPR55 transmission may modulate mesolimbic activity states and related behavioral phenomena...
2017: Cannabis and Cannabinoid Research
https://www.readbyqxmd.com/read/28837946/insights-into-the-link-between-drug-use-and-criminality-lifetime-offending-of-criminally-active-opiate-users
#19
Matthias Pierce, Karen Hayhurst, Sheila M Bird, Matthew Hickman, Toby Seddon, Graham Dunn, Tim Millar
BACKGROUND: We test whether the offending trajectory of those who test positive for opiates is greater than test-negative controls and whether the relationship is constant both prior to, and post, opiate initiation. We consider whether these relationships differ according to gender and offence type. METHODS: The study provides an analysis of historical offending records in adults linked to test results for opiate and cocaine metabolites. Those testing positive for opiates were linked to treatment records to retrieve data on age of opiate initiation...
October 1, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28828225/quantifying-absolute-glutamate-concentrations-in-nucleus-accumbens-of-prescription-opioid-addicts-by-using-1-h-mrs
#20
Xi-Long Liu, Long Li, Jian-Neng Li, Ji-Hua Tang, Jia-Hui Rong, Bo Liu, Ze-Xuan Hu
INTRODUCTION: The diagnosis of psychoactive substance use disorders has been based primarily on descriptive, symptomatic checklist criteria. In opioid addiction, there are no objective biological indicators specific enough to guide diagnosis, monitor disease status, and evaluate efficacy of therapeutic interventions. Proton magnetic resonance spectroscopy ((1)H MRS) of the brain has potential to identify and quantify biomarkers for the diagnosis of opioid dependence. The purpose of this study was to detect the absolute glutamate concentration in the nucleus accumbens (NAc) of patients with prescription opioid dependence using (1)H MRS, and to analyze its clinical associations...
August 2017: Brain and Behavior
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