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Opiate abuse

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https://www.readbyqxmd.com/read/28212516/sex-disparities-in-substance-abuse-research-evaluating-23-years-of-structural-neuroimaging-studies
#1
Kimberly E Lind, Eric J Gutierrez, Dorothy J Yamamoto, Michael F Regner, Sherry A McKee, Jody Tanabe
BACKGROUND: Sex differences in brain structure and clinical course of substance use disorders underscores the need to include women in structural brain imaging studies. The NIH has supported the need for research to address sex differences. We evaluated female enrollment in substance abuse structural brain imaging research and the methods used to study sex differences in substance effects. METHODS: Structural brain imaging studies published through 2016 (n=230) were evaluated for number of participants by sex and substance use status and methods used to evaluate sex differences...
January 31, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28196306/effects-of-isoflurane-anesthesia-and-intravenous-morphine-self-administration-on-regional-glucose-metabolism-18-f-fdg-pet-of-male-sprague-dawley-rats
#2
Thomas Y Park, Kevin S Nishida, Colin M Wilson, Shalini Jaiswal, Jessica Scott, Andrew R Hoy, Reed G Selwyn, Bernard J Dardzinski, Kwang H Choi
Although certain drugs of abuse are known to disrupt brain glucose metabolism (BGluM), the effects of opiates on BGluM are not well characterized. Moreover, preclinical positron emission tomography (PET) studies anesthetize animals during the scan, which limits clinical applications. We investigated the effects of 1) isoflurane anesthesia and 2) intravenous morphine self-administration (MSA) on BGluM in rats. Jugular vein cannulated adult male Sprague-Dawley rats self-administered either saline (SSA) or morphine (0...
February 14, 2017: European Journal of Neuroscience
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
#3
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/28167156/eluxadoline-demonstrates-a-lack-of-abuse-potential-in-phase-2-and-3-studies-of-patients-with-irritable-bowel-syndrome-with-diarrhea
#4
Reginald V Fant, Jack E Henningfield, Brooks D Cash, Leonard S Dove, Paul S Covington
BACKGROUND & AIMS: Eluxadoline is approved by the Food and Drug Administration for the treatment of adults with irritable bowel syndrome with diarrhea (IBS-D). Eluxadoline is a locally acting mixed μ- and κ-opioid receptor agonist and δ-opioid receptor antagonist. The abuse potential of eluxadoline was evaluated as part of the Phase 2 and 3 clinical trials assessing the efficacy, safety, and tolerability of the drug. METHODS: One Phase 2 (IBS-2001) and 2 Phase 3 (IBS-3001 and IBS-3002) randomized controlled trials enrolled patients meeting Rome III criteria for IBS-D...
February 3, 2017: Clinical Gastroenterology and Hepatology
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/28135387/the-opioid-epidemic-what-does-it-mean-for-nurses
#6
Laura G Leahy
The United States is facing a major crisis with the current opioid epidemic. Tens of thousands of individuals are dying each year due to abuse and misuse of heroin and prescription opiate drugs. Nurses play an integral role in these aspects of health care and offer solutions by providing education; preventive measures; treatments, including medication-assisted treatments (MATs); and ongoing recovery options for individuals with opioid use disorders. Nurses provide education, issue prescriptions and dispense medications, and provide overall physical and mental health care to patients struggling with this "disease of the brain," and with the signing of the Comprehensive Addiction and Recovery Act, advanced practice RNs will soon be able to include MATs related to buprenorphine as part of their treatment plan...
January 1, 2017: Journal of Psychosocial Nursing and Mental Health Services
https://www.readbyqxmd.com/read/28130543/monitoring-intravenous-abuse-of-methadone-or-buprenorphine-in-opiate-maintenance-treatment-omt-a-simple-and-fast-lc-ms-ms-method-for-the-detection-of-disaccharides-in-urine-samples
#7
REVIEW
Hilke Jungen, Hilke Andresen-Streichert, Alexander Müller, Stefanie Iwersen-Bergmann
The detection of disaccharides in urine is under investigation to act as a marker for intravenous abuse of disaccharide formulations, like liquid methadone with syrup (sucrose), methadone tablets (lactose and sucrose), or buprenorphine tablets (lactose). As the detection time in urine has not yet been investigated and a routine method for detecting disaccharides is still lacking, a study was performed to estimate the window of detection in urine after intravenous consumption of disaccharides. Furthermore, an analytical LC-MSMS method for the quantification of sucrose and lactose in urine was validated...
January 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28129435/presence-of-alcohol-cocaine-and-other-drugs-in-suicide-and-motor-vehicle-crash-decedents-ages-18-to-54
#8
Kenneth R Conner, Sarah Lathrop, Raul Caetano, Timothy Wiegand, Kimberly Kaukeinen, Kurt B Nolte
BACKGROUND: Use of alcohol and select other drugs confer risk for injury deaths, yet how such use compares in different types of injury deaths including suicide and fatal motor vehicle collisions (MVCs) is unclear. METHODS: Individuals in New Mexico ages 18 to 54 that died in 2012 by suicide or MVC were analyzed. Toxicology results were used to code the presence of alcohol and the presence of 1 or more drugs including cocaine, opiate (oxycodone, heroin, etc.), or amphetamine or methamphetamine, yielding a 4-category variable: Alcohol + Drug, Alcohol (without drug), Drug (without alcohol), and Neither (ref)...
January 27, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28100012/characterization-and-management-of-patients-with-heroin-versus-non-heroin-opioid-overdoses-experience-at-an-academic-medical-center
#9
Kate M Morizio, Regan A Baum, Adam Dugan, Julia E Marin, Abby M Bailey
STUDY OBJECTIVES: To characterize the differences between patients who had heroin and non-heroin opioid overdoses and to determine whether there were any significant differences in their management with regard to the naloxone use. DESIGN: Retrospective cohort study. SETTING: Large, academic medical center. PATIENTS: A total of 923 patients admitted to the medical center who were identified for overdose by heroin or other opiate-related narcotics between January 2010 and September 2015; 480 patients experienced a non-heroin opioid overdose event, and 443 patients experienced a heroin overdose event...
January 18, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28081197/morphine-withdrawal-modifies-prion-protein-expression-in-rat-hippocampus
#10
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/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/28012859/endogenous-opiates-and-behavior-2015
#13
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/27979929/comparative-evaluation-of-drug-deposition-in-hair-samples-collected-from-different-anatomical-body-sites
#14
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
#15
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
#16
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
https://www.readbyqxmd.com/read/27959349/an-unusual-cause-of-falls-in-a-young-woman
#17
I Sleeman, L Wiblin, D Burn
Nitrous oxide is commonly used as an analgesic and anaesthetic agent. Nitrous oxide is also in use in industry as an aerosol propellant and is now recognised as a recreational drug whose use is growing, especially among the young. Nitrous oxide from whipped cream canisters is inhaled to produce a dissociative, intoxicated state. Nitrous oxide is known to inactivate vitamin B12 via oxidation, which can precipitate a demyelinating myelopathy akin to the classical B12 deficiency syndrome, subacute combined degeneration of the spinal cord...
September 2016: Journal of the Royal College of Physicians of Edinburgh
https://www.readbyqxmd.com/read/27936337/alcohol-use-in-an-older-adult-referred-to-a-consultation-liaison-psychiatry-service-a-case-report
#18
Adam Searby, Natalie van Swet, Phil Maude, Ian McGrath
Alcohol use disorder in older adults is associated with a number of substantial medical complications, including cognitive decline. Due to limited success and application of screening approaches in this cohort, older adults are more likely to present to general hospital settings with undiagnosed problematic alcohol use. Consultation-liaison psychiatry services operating in general hospital settings are likely to be referred older adults with alcohol use disorders for assessment and management. A 77-year-old female presented to a metropolitan hospital with symptoms including frequent falls, slurred speech, difficulty judging distance, hypersomnia, poor reasoning, and odd behaviours...
January 2017: Issues in Mental Health Nursing
https://www.readbyqxmd.com/read/27901585/a-review-of-positron-emission-tomography-studies-exploring-the-dopaminergic-system-in-substance-use-with-a-focus-on-tobacco-as-a-co-variate
#19
Thulasi Thiruchselvam, Saima Malik, Bernard Le Foll
With the evolving sensitivity of positron emission tomography (PET) and the emergence of novel radiotracers, greater insight has been gained into the dopaminergic system as it relates to substance use. In this review, we summarize PET investigations from the last ten years that explore the dopaminergic system in tobacco, alcohol, stimulant, opiates, and cannabis addiction. In light of the prevalence of substance co-use, this review will also explore the effect of tobacco and other substance abuse co-morbidity on the dopaminergic system across study samples in the reviewed literature...
March 2017: American Journal of Drug and Alcohol Abuse
https://www.readbyqxmd.com/read/27888955/emotion-dysregulation-mediates-between-childhood-emotional-abuse-and-motives-for-substance-use
#20
Usha Barahmand, Ali Khazaee, Goudarz Sadeghi Hashjin
The purpose of this study is to assess the relative mediating effects of impulsivity and emotion dysregulation in the relationship between childhood maltreatment and motives for opiate use. Seventy four adolescent users of Tramadol, a synthetic opiate, were recruited from a boot camp for de-addiction and rehabilitation services for the study. Data were collected between May, 2014 and November, 2014. Participants completed assessments of childhood abuse history, difficulties regulating emotions, impulsiveness and motives for substance use as well as a socio-demographic information sheet...
December 2016: Archives of Psychiatric Nursing
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