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https://www.readbyqxmd.com/read/29353292/harm-reduction-program-use-psychopathology-and-medical-severity-in-patients-with-methadone-maintenance-treatment
#1
Nieves Gudelia Martínez-Luna, Laia Rodríguez-Cintas, Abderraman Esojo, Raúl Felipe Palma-Álvarez, María Robles-Martínez, Lara Grau-López, Marta Perea, Carlos Roncero
Methadone maintenance programs (MMP) for opioid dependence treatment have been widely used due to their effective therapeutic outcomes. Harm reduction programs (HRP) are complementary programs for severe patients with high risk behaviors and when abstinence is not possible. This study aims to compare patients in MMP that use HRP (MMP-HRP) and patients in MMP who do not use HRP (MMP-NO HRP). The sample was composed of 143 patients (MMP-HRP = 42 vs. MMP-NO HRP = 101). An additional subanalysis was performed with patients under 45 years of age (n = 116; MMP-HRP = 38 vs...
January 15, 2018: Adicciones
https://www.readbyqxmd.com/read/29352503/in-vivo-effects-of-%C3%AE-opioid-receptor-agonist-%C3%AE-opioid-receptor-antagonist-peptidomimetics-following-acute-and-repeated-administration
#2
Jessica P Anand, Kelsey E Kochan, Anthony F Nastase, Deanna Montgomery, Nicholas W Griggs, John R Traynor, Henry I Mosberg, Emily M Jutkiewicz
BACKGROUND AND PURPOSE: Mu opioid receptor (μ-receptor) agonists are used for pain management, but produce adverse effects including tolerance, dependence, and euphoria. The co-administration of a μ-receptor agonist with a delta opioid receptor (δ-receptor) antagonist has been shown to produce antinociception with reduced development of some side effects. We characterized the effects of three μ-receptor agonist/δ-receptor antagonist peptidomimetics in vivo after acute and repeated administration to determine if this profile provides a viable alternative to traditional opioid analgesics...
January 19, 2018: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29352328/attenuation-of-serotonin-induced-itch-by-sumatriptan-possible-involvement-of-endogenous-opioids
#3
Nazgol-Sadat Haddadi, Arash Foroutan, Saeed Shakiba, Khashayar Afshari, Sattar Ostadhadi, Maryam Daneshpazhooh, Ahmad-Reza Dehpour
Serotonin (5-hydroxytryptamine or 5-HT) is a neurotransmitter in itch and impaired serotonin signaling has been linked to a variety of itch conditions. Intradermal injection of 5-HT induces scratching behavior in mice through stimulation of 5-HT receptors. Previous studies have demonstrated that selective 5-HT1B/1D receptors agonists, including sumatriptan, inhibits neurotransmission. We have also reported that sumatriptan suppresses chloroquine-induced itch. Therefore, we investigated if sumatriptan has inhibitory effects on serotonin-induced itch in mice...
January 19, 2018: Archives of Dermatological Research
https://www.readbyqxmd.com/read/29349283/is-self-rated-health-in-adolescence-a-predictor-of-prescribed-medication-in-adulthood-findings-from-the-nord-tr%C3%A3-ndelag-health-study-and-the-norwegian-prescription-database
#4
Tina Lokke Vie, Karl Ove Hufthammer, Turid Lingaas Holmen, Eivind Meland, Hans Johan Breidablik
Self-rated health (SRH) is a commonly used health indicator predicting morbidity and mortality in a range of populations. However, the relationship between SRH and medication is not well established. The aim of this study was to examine adolescent SRH as a predictor for prescribed medication later in young adulthood. Eighteen years' prospective data from the Nord-Trøndelag Health Study (HUNT) and the Norwegian Prescription Database (NorPD) were analyzed. Baseline data, gathered from 8982 adolescents (mean age 16...
April 2018: SSM—Population Health
https://www.readbyqxmd.com/read/29347984/the-effects-of-state-rules-on-opioid-prescribing-in-indiana
#5
Morhaf Al Achkar, Shaun Grannis, Debra Revere, Palmer MacKie, Meredith Howard, Sumedha Gupta
BACKGROUND: Prescription opioids have been linked to over half of the 28,000 opioid overdose deaths in 2014. High rates of prescription opioid non-medical use have continued despite nearly all states implementing large-scale prescription drug monitoring programs (PDMP), which points to the need to examine the impact of state PDMP's on curbing inappropriate opioid prescribing. In the short-term, PDMPs have been associated with short-term prescribing declines. Yet little is known about how such policies differentially impact patient subgroups or are interpreted by prescribing providers...
January 18, 2018: BMC Health Services Research
https://www.readbyqxmd.com/read/29346444/social-and-structural-barriers-for-adherence-to-methadone-maintenance-treatment-among-vietnamese-opioid-dependence-patients
#6
Bach Xuan Tran, Long Hoang Nguyen, Tung Thanh Tran, Carl A Latkin
INTRODUCTION: Methadone maintenance treatment (MMT) services may reduce the risk of HIV transmission if patients completely adhere to the treatment. Identifying adherence patterns and potential related factors is vital for the sustainability of MMT program in Vietnam. This study examined social and structural factors associated with adherence to MMT among patients in different service delivery models. MATERIALS AND METHODS: A total of 510 patients at three MMT clinics in Hanoi were interviewed...
2018: PloS One
https://www.readbyqxmd.com/read/29346228/analgesia-of-combined-femoral-triangle-and-obturator-nerve-blockade-is-superior-to-local-infiltration-analgesia-after-total-knee-arthroplasty-with-high-dose-intravenous-dexamethasone
#7
Charlotte Runge, Jan Mick Jensen, Louise Clemmesen, Henriette Bach Knudsen, Carsten Holm, Jens Børglum, Thomas Fichtner Bendtsen
BACKGROUND AND OBJECTIVES: High-dose intravenous dexamethasone reduces the postoperative opioid requirement and is often included in the multimodal analgesia strategy after total knee arthroplasty (TKA). Combined obturator nerve and femoral triangle blockade (OFB) reduces the opioid consumption and pain after TKA better than local infiltration analgesia (LIA). The question is whether preoperative high-dose intravenous dexamethasone would cancel out the superior analgesic effect of OFB compared with LIA...
January 17, 2018: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/29344826/phytochemical-analysis-and-evaluation-of-the-antioxidant-anti-inflammatory-and-antinociceptive-potential-of-phlorotannin-rich-fractions-from-three-mediterranean-brown-seaweeds
#8
Amal Abdelhamid, Meriem Jouini, Haifa Bel Haj Amor, Zeineb Mzoughi, Mehdi Dridi, Rafik Ben Said, Abderrahman Bouraoui
Phlorotannins, phenolic compounds produced exclusively by seaweeds, have been reported to possess various pharmacological properties. However, there have been few works on these compounds from Mediterranean seaweeds. In this study, we investigated the phytochemical analysis and pharmacological potential of phlorotannin-rich fractions from three brown seaweeds collected along the Tunisia coast: Cystoseira sedoides (PHT-SED), Cladostephus spongeosis (PHT-CLAD), and Padina pavonica (PHT-PAD). Phytochemical determinations showed considerable differences in total phenolic content (TPC) and phlorotannin content (PHT)...
January 18, 2018: Marine Biotechnology
https://www.readbyqxmd.com/read/29344736/predictors-of-analgesic-efficacy-of-neurolytic-celiac-plexus-block-in-patients-with-unresectable-pancreatic-cancer-the-importance-of-timing
#9
Duck Mi Yoon, Kyung Bong Yoon, In Chan Baek, Seo Hee Ko, Shin Hyung Kim
BACKGROUND: Neurolytic celiac plexus block (NCPB) is a safe and effective method for reducing abdominal cancer pain. However, the analgesic efficacy of NCPB is not always guaranteed. The aim of this retrospective study was to identify predictors for the analgesic efficacy of NCPB in patients with unresectable pancreatic cancer. METHODS: Patients with unresectable pancreatic cancer who underwent NCPB from 2006 to 2015 were enrolled. Good analgesia after NCPB was defined as ≥ 50% reduction in pain score at day 30...
January 17, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29341826/mu-opioid-receptors-inhibit-the-exercise-pressor-reflex-by-closing-n-type-calcium-channels-but-not-by-opening-girk-channels-in-rats
#10
Juan A Estrada, Marc P Kaufman
Mu opioid G-protein coupled receptors (MOR) interact with ion channels to decrease neuronal excitability. In humans, intrathecal administration of the MOR agonist, fentanyl, inhibits the exercise pressor reflex, an effect that can be attributed to either the opening of inward rectifying potassium channels (GIRK) or the closing of N-type calcium channels. The purpose of this study was to determine if the highly selective MOR agonist DAMGO attenuates the exercise pressor reflex, and which of these two channels are responsible for this effect...
January 17, 2018: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29334921/a-pilot-feasibility-randomised-controlled-trial-of-an-adjunct-brief-social-network-intervention-in-opiate-substitution-treatment-services
#11
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/29334864/pain-assessment-documentation-after-opioid-administration-at-a-community-teaching-hospital
#12
Megan E Phillips, Rod A Gilmore, Melody C Sheffield, Stephanie V Phan
PURPOSE: To compare pain assessment documentation postopioid administration in hospitalized patients before and after implementing nurse education. METHODS: Patients 18 years and older were randomly selected for inclusion if they received 1 opioid dose while admitted to the hospital. Through retrospective chart review, opioid data, including date and time, were collected for each opioid administered. Pain score data, including time and date of documentation, were recorded for analysis...
January 1, 2018: Journal of Pharmacy Practice
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
#13
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/29333880/pharmacogenetic-analysis-of-opioid-dependence-treatment-dose-and-dropout-rate
#14
Richard C Crist, James Li, Glenn A Doyle, Alex Gilbert, Bryan M Dechairo, Wade H Berrettini
BACKGROUND: Currently, no pharmacogenetic tests for selecting an opioid-dependence pharmacotherapy have been approved by the US Food and Drug Administration. OBJECTIVES: Determine the effects of variants in 11 genes on dropout rate and dose in patients receiving methadone or buprenorphine/naloxone (ClinicalTrials.gov Identifier: NCT00315341). METHODS: Variants in six pharmacokinetic genes (CYP1A2, CYP2B6, CYP2C19, CYP2C9, CYP2D6, CYP3A4) and five pharmacodynamic genes (HTR2A, OPRM1, ADRA2A, COMT, SLC6A4) were genotyped in samples from a 24-week, randomized, open-label trial of methadone and buprenorphine/naloxone for the treatment of opioid dependence (n = 764; 68...
January 15, 2018: American Journal of Drug and Alcohol Abuse
https://www.readbyqxmd.com/read/29332567/nociceptin-orphanin-fq-peptide-nop-receptor-modulators-an-update-in-structure-activity-relationships
#15
Carlo Mustazza, Stefano Pieretti, Francesca Marzoli
Nociceptin /Orphanin FQ Peptide" receptor (NOPr) is a G-protein-coupled receptor with the nociceptin/orphanin FQ peptide (N/OFQ) as endogenous agonist. It is expressed in the nervous system as well as in some non-neural tissues. Its activation has pronociceptive effect at the supraspinal level, whereas at the spinal level it produces nociceptive effects at low doses and antinociceptive effects at higher doses. NOPr is also involved in mood and blood pressure regulation, immunoregulation, airway constriction, feeding, urination, bowel motility, learning and memory...
January 10, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29330240/structured-management-of-chronic-nonmalignant-pain-with-opioids-in-a-rural-primary-care-office
#16
Kevin S McCann, Shawndra Barker, Raymond Cousins, Adam Franks, Clinton McDaniel, Stephen Petrany, Eric Riley
INTRODUCTION: The use of opioid medication for nonmalignant chronic pain (NMCP) increased dramatically during the last 20 years. There have been regulatory changes implemented to reduce the risk of harm to both patients and society. Much of the burden of monitoring these patients is falling on primary care physicians (PCPs), who do not have the time or resources to handle what is entailed in a best-practice approach to NMCP. METHODS: A retrospective study was conducted with all patients on opioid medication for NMCP who were enrolled onto an individual PCP's practice...
January 2018: Journal of the American Board of Family Medicine: JABFM
https://www.readbyqxmd.com/read/29330156/application-of-receptor-theory-to-the-design-and-use-of-fixed-proportion-mu-opioid-agonist-and-antagonist-mixtures-in-rhesus-monkeys
#17
Jeremy C Cornelissen, Samuel Obeng, Kenner C Rice, Yan Zhang, S Stevens Negus, Matthew Banks
Receptor theory predicts that fixed-proportion mixtures of a competitive, reversible agonist (e.g. fentanyl) and antagonist (e.g. naltrexone) at a common receptor (e.g. mu opioid receptors; MOR) will result in antagonist proportion-dependent decreases in apparent efficacy of the mixtures and downward shifts in mixture dose-effect functions. The present study tested this hypothesis by evaluating behavioral effects of fixed-proportion fentanyl/naltrexone mixtures in a warm-water tail-withdrawal procedure in rhesus monkeys (n=4)...
January 12, 2018: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/29327341/combined-thoracic-paravertebral-and-pectoral-nerve-blocks-for-breast-surgery-under-sedation-a-prospective-observational-case-series
#18
A Pawa, J Wight, D N Onwochei, R Vargulescu, I Reed, L Chrisman, E Pushpanathan, A Kothari, K El-Boghdadly
Avoidance of general anaesthesia for breast surgery may be because of clinical reasons or patient choice. There is emerging evidence that the use of regional anaesthesia and the avoidance of volatile anaesthetics and opioid analgesia may have beneficial effects on oncological outcomes. We conducted a prospective observational case series of 16 breast cancer surgeries performed under thoracic paravertebral plus pectoral nerve block with propofol sedation to demonstrate feasibility of technique, patient acceptability and surgeon satisfaction...
January 12, 2018: Anaesthesia
https://www.readbyqxmd.com/read/29326369/successful-treatment-of-postural-orthostatic-tachycardia-and-mast-cell-activation-syndromes-using-naltrexone-immunoglobulin-and-antibiotic-treatment
#19
Leonard B Weinstock, Jill B Brook, Trisha L Myers, Brent Goodman
A patient with severe postural orthostatic tachycardia syndrome (POTS) and mast cell activation syndrome (MCAS) received immunotherapy with low-dose naltrexone (LDN) and intravenous immunoglobulin (IVIg) and antibiotic therapy for small intestinal bacterial overgrowth (SIBO). A dramatic and sustained response was documented. The utility of IVIg in autoimmune neuromuscular diseases has been published, but clinical experience with POTS is relatively unknown and has not been reported in MCAS. As a short-acting mu-opioid antagonist, LDN paradoxically increases endorphins which then bind to regulatory T cells which regulate T-lymphocyte and B-lymphocyte production and this reduces cytokine and antibody production...
January 11, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29322659/integrating-dose-estimation-into-a-decision-making-framework-for-model-based-drug-development
#20
James Dunyak, Patrick Mitchell, Bengt Hamrén, Gabriel Helmlinger, James Matcham, Donald Stanski, Nidal Al-Huniti
Model-informed drug discovery and development offers the promise of more efficient clinical development, with increased productivity and reduced cost through scientific decision making and risk management. Go/no-go development decisions in the pharmaceutical industry are often driven by effect size estimates, with the goal of meeting commercially generated target profiles. Sufficient efficacy is critical for eventual success, but the decision to advance development phase is also dependent on adequate knowledge of appropriate dose and dose-response...
January 10, 2018: Pharmaceutical Statistics
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