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https://www.readbyqxmd.com/read/29341829/climatic-modulation-of-neurotransmitter-release-in-amphibian-neuromuscular-junctions-role-of-dynorphin-a
#1
Dengyun Ge, Nickolas Anastasios Lavidis
Amphibian neuromuscular junctions become relatively more silent during the dry-winter season in Australia. Endogenous opioid peptides play an important role in the regulation of the physiological functions of active and dormant vertebrates. Previous findings suggest that dynorphin-A is more potent than other opiates in decreasing evoked neurotransmission in amphibian neuromuscular junctions. Dynorphin-A has been shown not to alter the amplitude or the frequency of spontaneous quantal neurotransmitter release...
January 17, 2018: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29339657/the-practical-management-of-chronic-pancreatitis-a-multidisciplinary-symposium-held-at-the-annual-meeting-of-the-pancreatic-society-of-great-britain-and-ireland-manchester-2016
#2
Santhalingam Jegatheeswaran, Joanne M Puleston, Sinead Duggan, Andrew Hart, Kevin C Conlon, Ajith K Siriwardena
AIM: This study is about a questionnaire survey of delegates attending the chronic pancreatitis symposium at the 2016 meeting of the Pancreatic Society of Great Britain and Ireland and seeks a multidisciplinary "snapshot" overview of practice. METHODS: A questionnaire was developed with multidisciplinary input. Questions on access to specialist care, methods of diagnosis and treatment including specific scenarios were incorporated. Eighty-three (66%) of 125 delegates effectively participated in this survey...
January 16, 2018: Digestive Surgery
https://www.readbyqxmd.com/read/29334921/a-pilot-feasibility-randomised-controlled-trial-of-an-adjunct-brief-social-network-intervention-in-opiate-substitution-treatment-services
#3
Ed Day, Alex Copello, Jennifer L Seddon, Marilyn Christie, Deborah Bamber, Charlotte Powell, Carmel Bennett, Shabana Akhtar, Sanju George, Andrew Ball, Emma Frew, Ilias Goranitis, Nick Freemantle
BACKGROUND: Approximately 3% of people receiving opioid substitution therapy (OST) in the UK manage to achieve abstinence from prescribed and illicit drugs within three years of commencing treatment. Involvement of families and wider social networks in supporting psychological treatment may be an effective strategy in facilitating recovery, and this pilot study aimed to evaluate the impact of a social network-focused intervention for patients receiving OST. METHODS: A two-site, open feasibility trial randomised patients receiving OST for at least 12 months but still reporting illicit opiate use in the past 28 days to one of three treatments: 1) treatment as usual (TAU), 2) Brief Social Behaviour and Network Therapy (B-SBNT) + TAU, or 3) Personal Goal Setting (PGS) + TAU...
January 15, 2018: BMC Psychiatry
https://www.readbyqxmd.com/read/29334500/overexpression-of-%C3%A2%C2%B5-opioid-receptors-in-peripheral-afferents-but-not-in-combination-with-enkephalin-decreases-neuropathic-pain-behavior-and-enhances-opioid-analgesia-in-mouse
#4
Amanda H Klein, Husam K Mohammad, Rabiah Ali, Brad Peper, Steven P Wilson, Srinivasa N Raja, Matthias Ringkamp, Sarah Sweitzer
BACKGROUND: The current study used recombinant herpes simplex virus type I to increase expression of µ-opiate receptors and the opioid ligand preproenkephalin in peripheral nerve fibers in a mouse model of neuropathic pain. It was predicted that viral vector delivery of a combination of genes encoding the µ-opioid receptor and preproenkephalin would attenuate neuropathic pain and enhance opioid analgesia. The behavioral effects would be paralleled by changes in response properties of primary afferent neurons...
January 15, 2018: Anesthesiology
https://www.readbyqxmd.com/read/29328000/conscious-sedation-with-dexmedetomidine-compared-with-asleep-awake-asleep-craniotomies-in-glioma-surgery-an-analysis-of-180-patients
#5
Eric Suero Molina, Stephanie Schipmann, Isabelle Mueller, Johannes Wölfer, Christian Ewelt, Matthias Maas, Benjamin Brokinkel, Walter Stummer
OBJECTIVE Awake craniotomies have become a feasible tool over time to treat brain tumors located in eloquent regions. Different techniques have been applied in neurooncology centers. Both "asleep-awake-asleep" (asleep) and "conscious sedation" were used subsequently at the authors' neurosurgical department. Since 2013, the authors have only performed conscious sedation surgeries, predominantly using the α2-receptor agonist dexmedetomidine as the anesthetic drug. The aim of this study was to compare both mentioned techniques and evaluate the clinical use of dexmedetomidine in the setting of awake craniotomies for glioma surgery...
January 12, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29317077/the-pruritus-of-cholestasis-from-bile-acids-to-opiate-agonists-relevant-after-all-these-years
#6
Nora V Bergasa
The pruritus of cholestasis is a maddening complication of liver disease. Increased opioidergic tone contributes to the pruritus of cholestasis, as evidenced by the amelioration of the symptom by opiate antagonists. Obeticholic acid, an agonist of the farnesoid receptor, has been approved for the treatment of primary biliary cholangitis, a disease characterized by cholestasis; this drug is associated with pruritus, the cause of which is unknown. In animal models, bile acids, which accumulate in the body as a result of cholestasis, have been reported to cause scratching behavior mediated by the TGR5 receptor, in an opioid-dependent manner, in laboratory animals...
January 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29308594/evaluating-the-abuse-potential-of-opioids-and-abuse-deterrent-opioid-formulations-a-review-of-clinical-study-methodology
#7
Beatrice Setnik, Kerri A Schoedel, Naama Levy-Cooperman, Megan Shram, Glenn C Pixton, Carl L Roland
With the development of opioid abuse-deterrent formulations (ADFs), there is a need to conduct well-designed human abuse potential studies to evaluate the effectiveness of their deterrent properties. Although these types of studies have been conducted for many years, largely to evaluate inherent abuse potential of a molecule and inform drug scheduling, methodological approaches have varied across studies. The focus of this review is to describe current "best practices" and methodological adaptations required to assess abuse-deterrent opioid formulations for regulatory submissions...
November 2017: Journal of Opioid Management
https://www.readbyqxmd.com/read/29307544/role-of-mglu7-receptor-in-morphine-rewarding-effects-is-uncovered-by-a-novel-orthosteric-agonist
#8
Zuzana Hajasova, Corinne Canestrelli, Francine Acher, Florence Noble, Nicolas Marie
Opiate dependence is a major health issue and despite the existence of opioid substitution treatment, relapse frequently occurs. Group III metabotropic glutamate (mGlu) receptors has received much attention as a putative target in ethanol and cocaine addiction, but no data on opiate addiction exist. So we investigated the role of group III mGlu receptor in morphine rewarding effects through the expression and the reinstatement of conditioned place preference (CPP) using a newly synthesized mGlu4/mGlu7 receptor orthosteric agonist, LSP2-9166...
January 4, 2018: Neuropharmacology
https://www.readbyqxmd.com/read/29301050/field-detection-of-drugs-of-abuse-in-oral-fluid-using-the-alere%C3%A2-dds%C3%A2-2-mobile-test-system-with-confirmation-by-liquid-chromatography-tandem-mass-spectrometry-lc-ms-ms
#9
Alex J Krotulski, Amanda L A Mohr, Melissa Friscia, Barry K Logan
The collection and analysis of drugs in oral fluid (OF) at the roadside has become more feasible with the introduction of portable testing devices such as the Alere™ DDS®2 Mobile Test System (DDS®2). The objective of this study was to compare the on-site results for the DDS®2 to laboratory-based confirmatory assays with respect to detection of drugs of abuse in human subjects. As part of a larger Institutional Review Board approved study, two OF samples were collected from each participant at a music festival in Miami, FL, USA...
December 28, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/29301012/diagnosis-of-heroin-overdose-in-an-8-year-old-boy-reliable-contribution-of-toxicological-investigations
#10
M Soichot, S Julliand, J Filatriau, A Hurbain, E Bourgogne, A Mihoubi, H Gourlain, B Delhotal-Landes
Toxicological investigations are often required by clinicians in comatose patients with suspected poisoning. However, the usefulness of toxicological analyses to support a diagnosis of acute poisoning is debated among clinicians and the interpretation of laboratory tests is challenging given the wide diversity of analytical techniques available. We report the case of an 8-year-old boy who was admitted to an intensive care unit with severe respiratory depression and neurological impairment. In order to formulate appropriate hypothesizes about the diagnosis and circumstances of intoxication, clinicians consulted toxicologists for a comprehensive toxicological screening...
December 28, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/29299212/risk-factors-of-mortality-due-to-acute-opium-poisoning-a-report-from-the-largest-intoxication-referral-center-in-iran
#11
Sahar Rismantab-Sani, Babak Soltani, Siamak Soltani, Azadeh Memarian
Background: Studies have shown that Iran has a high rate of opiate abuse and the most prevalently used is opium. This study was aimed to evaluate risk factors in patients with acute opium intoxication who referred to Loghman Hakim Hospital, Tehran, Iran, in 2011. Methods: A total number of 383 patients with acute opium overdose, who were referred to the Emergency Department of Loghman Hakim Hospital in Tehran during 2011, were enrolled into this descriptive, cross-sectional study...
April 2017: Addiction & Health
https://www.readbyqxmd.com/read/29294650/interpersonal-violence-exposure-and-chronic-pain-in-adult-sickle-cell-patients
#12
Julian D Ford, Damion J Grasso, Sasia Jones, Teresa Works, Biree Andemariam
Almost half of sickle cell disease (SCD) patients develop chronic, debilitating physical pain with uncertain genesis for which they primarily receive opiate-based palliative treatment. Psychological trauma exposure, especially interpersonal victimization, has been linked to the perception of pain in several medical diseases, but has yet to be examined in SCD patients. This study examines self-reported chronicity of pain and use of prescribed opiates in 50 adult SCD patients with and without a history of interpersonal violence exposure...
February 1, 2017: Journal of Interpersonal Violence
https://www.readbyqxmd.com/read/29291353/fluorescently-labelled-morphine-derivatives-for-bioimaging-studies
#13
Raymond Lam, Arisbel B Gondin, Meritxell Canals, Barrie Kellam, Stephen J Briddon, Bim Graham, Peter J Scammells
Opioids, like morphine, are the mainstay analgesics for the treatment and control of pain. Despite this, they often exhibit severe side effects that limit dose; patients often become tolerant and dependent on these drugs, which remains a major health concern. The analgesic actions of opioids are primarily mediated via the μ-opioid receptor, a member of the G protein-coupled receptor superfamily. Thus far, development of small molecule fluorescent ligands for this receptor has resulted in antagonists, somewhat limiting the use of these probes...
January 1, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29289387/our-35%C3%A2-years-experience-on-postburn-heterotopic-ossification-a-three-step-treatment
#14
N Malca, K Serror, M Mimoun, S Chatelain, J Kaplan, M Chaouat, O Marco, D Boccara
Our retrospective study of burn patients presents a three-step treatment of heterotopic ossification: excision surgery, early rehabilitation, and analgesia. We included patients admitted to the department for treatment of postburn heterotopic ossification between January 1, 1979, and September 30, 2015. The mean age at the time of the burn was 43.3 years. Men accounted for the majority of burn patients who developed an osteoma (70.8%). The mean total skin area burned was 38.4%. No osteoma justifying surgery was found for any patient with a total burned skin area less than 19%...
December 27, 2017: Annales de Chirurgie Plastique et Esthétique
https://www.readbyqxmd.com/read/29287237/a-novel-approach-of-substitution-therapy-with-inhalation-of-essential-oil-for-the-reduction-of-inhalant-craving-a-double-blinded-randomized-controlled-trial
#15
Rasmon Kalayasiri, Wanjaree Maneesang, Michael Maes
Inhalants, which are neurotoxic central nervous system (CNS) suppressants, are frequently abused by young adults. Unlike other CNS depressants, including alcohol and opiates, no treatment is currently approved for inhalant dependence. In this report, a novel approach of substitution treatment for inhalant addiction was explored in a double-blinded, randomized, controlled crossover design to examine the effects of inhalation of essential oil and perfume on the reduction of cue-induced craving for inhalant in thirty-four Thai males with inhalant dependence...
December 11, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/29284807/a-clinical-study-of-opioid-substitution-therapy-in-a-tertiary-care-center-of-eastern-india
#16
Satyakam Mohapatra, Mihir Ranjan Nayak, Manaswini Dash
Background: Opioid substitution therapy (OST) is an evidence-based intervention for opiate-dependent persons that replaces illicit drug use with medically prescribed, orally administered opiates such as buprenorphine and methadone. OST reduces HIV risk behaviors and harms associated with injecting opioid. Most of the evidence for OST effectiveness has been generated in middle- and high-income countries where programs are mostly located in dedicated health-care settings; evidence regarding the outcomes of OST programs in low-income countries where OST is often provided in grassroots settings such as drop-in centers is limited...
November 2017: Indian Journal of Psychological Medicine
https://www.readbyqxmd.com/read/29279787/acute-chest-syndrome-in-children-with-sickle-cell-disease
#17
REVIEW
Shilpa Jain, Nitya Bakshi, Lakshmanan Krishnamurti
Acute chest syndrome (ACS) is a frequent cause of acute lung disease in children with sickle cell disease (SCD). Patients may present with ACS or may develop this complication during the course of a hospitalization for acute vaso-occlusive crises (VOC). ACS is associated with prolonged hospitalization, increased risk of respiratory failure, and the potential for developing chronic lung disease. ACS in SCD is defined as the presence of fever and/or new respiratory symptoms accompanied by the presence of a new pulmonary infiltrate on chest X-ray...
December 1, 2017: Pediatric Allergy, Immunology, and Pulmonology
https://www.readbyqxmd.com/read/29275216/mdpv-in-forensic-routine-cases-psychotic-and-aggressive-behavior-in-relation-to-plasma-concentrations
#18
Marco Diestelmann, Anna Zangl, Inge Herrle, Eva Koch, Matthias Graw, Liane D Paul
The new psychoactive substance 3,4-methylenedioxypyrovalerone (MDPV) belongs to the group of synthetic cathinones and is purchased mainly as "research chemical" or "bath salt" on the illegal drug market, also in South Bavaria. MDPV was detected in blood and urine samples from 2010 on in 50 authentic routine cases in a forensic setting. Plasma concentrations in 46 cases with available blood specimens ranged from approximately 1.0 to 301μg/L (median 23.7; mean 47.9μg/L), detected by a fully validated LC-MS/MS method...
December 8, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29275046/plasma-testosterone-and-sexual-function-in-southeast-asian-men-receiving-methadone-and-buprenorphine-maintenance-treatment
#19
Anne Yee, Huai Seng Loh, Mahmoud Danaee, Shahrzad Riahi, Chong Guan Ng, Ahmad Hatim Sulaiman
BACKGROUND: Methadone has been recognized as an effective maintenance treatment for opioid dependence. However, its use is associated with several complications, including sexual dysfunction in men. AIM: To assess plasma testosterone and sexual function in Southeast Asian men on methadone maintenance treatment (MMT) or buprenorphine maintenance treatment (BMT). METHODS: 76 sexually active men on MMT (mean age = 43.30 ± 10.32 years) and 31 men on BMT (mean age = 41...
December 20, 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/29274731/simultaneous-analysis-of-opioid-analgesics-and-their-metabolites-in-municipal-wastewaters-and-river-water-by-liquid-chromatography-tandem-mass-spectrometry
#20
Ivona Krizman-Matasic, Petra Kostanjevecki, Marijan Ahel, Senka Terzic
Although published literature provides a clear demonstration of widespread occurrence of opioid analgesics (OAs) in the aquatic environment, analytical methods suitable for a systematic study of this pharmaceutical class, which would include a broad spectrum of opioid analgesics and their metabolites, are still missing. In this work, a comprehensive multiresidue method for quantitative analysis of 27 opioid analgesics and their metabolites, including 2 morphine glucuronide conjugates, was developed and validated for three matrices: raw wastewater (RW), secondary effluent (SE) and river water...
December 11, 2017: Journal of Chromatography. A
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