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https://www.readbyqxmd.com/read/29677442/synthesis-and-pharmacological-evaluation-of-novel-c-8-substituted-tetrahydroquinolines-as-balanced-affinity-mu-delta-opioid-ligands-for-the-treatment-of-pain
#1
Anthony F Nastase, Nicholas W Griggs, Jessica P Anand, Thomas J Fernandez, Aubrie A Harland, Tyler J Trask, Emily M Jutkiewicz, John R Traynor, Henry I Mosberg
The use of opioids for the treatment of pain, while largely effective, is limited by detrimental side effects including analgesic tolerance, physical dependence, and euphoria, which may lead to opioid abuse. Studies have shown that compounds with a -opioid receptor (MOR) agonist/-opioid receptor (DOR) antagonist profile reduce or eliminate some of these side effects including development of tolerance and dependence. Herein we report the synthesis and pharmacological evaluation of a series of tetrahydroquinoline-based peptidomimetics with substitutions at the C-8 position...
April 20, 2018: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/29677062/opioid-oversupply-after-joint-and-spine-surgery-a-prospective-cohort-study
#2
Mark C Bicket, Elizabeth White, Peter J Pronovost, Christopher L Wu, Myron Yaster, G Caleb Alexander
BACKGROUND: Many patients receive prescription opioids at hospital discharge after surgery, yet little is known regarding how often these opioids go unused. We estimated the prevalence of unused opioids, use of nonopioid analgesics, and storage and disposal practices after same-day and inpatient surgery. METHODS: In this prospective cohort study at a large, inner-city tertiary care hospital, we recruited individuals ≥18 years of age undergoing elective same-day or inpatient joint and spine surgery from August to November 2016...
April 17, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29677019/mu-opioid-receptors-in-nociceptive-afferents-produce-a-sustained-suppression-of-hyperalgesia-in-chronic-pain
#3
Amie Severino, Wenling Chen, Joshua K Hakimian, Brigitte L Kieffer, Claire Gaveriaux-Ruff, Wendy Walwyn, Juan Carlos Marvizon
The latent sensitization model of chronic pain reveals that recovery from some types of long-term hyperalgesia is an altered state in which nociceptive sensitization persists but is suppressed by the ongoing activity of analgesic receptors such as µ-opioid receptors (MORs). To determine whether these MORs are the ones present in nociceptive afferents, we bred mice expressing Cre-recombinase under the Nav1.8 channel promoter (Nav1.8cre) with MOR-floxed mice (flMOR). These Nav1.8cre/flMOR mice had reduced MOR expression in primary afferents, as revealed by quantitative PCR, in situ hybridization and immunofluorescence colocalization with the neuropeptide CGRP...
April 17, 2018: Pain
https://www.readbyqxmd.com/read/29677001/impact-of-intravenous-acetaminophen-on-perioperative-opioid-utilization-and-outcomes-in-open-colectomies-a-claims-database-analysis
#4
Isaac Wasserman, Jashvant Poeran, Nicole Zubizarreta, Jason Babby, Stelian Serban, Andrew T Goldberg, Alexander J Greenstein, Stavros G Memtsoudis, Madhu Mazumdar, Andrew B Leibowitz
BACKGROUND: The value of intravenous acetaminophen in postoperative pain management remains debated. The authors tested the hypothesis that intravenous acetaminophen use, in isolation and in comparison to oral, would be associated with decreased opioid utilization (clinically significant reduction defined as 25%) and opioid-related adverse effects in open colectomy patients. METHODS: Using national claims data from open colectomy patients (Premier Healthcare Database, Premier Healthcare Solutions, Inc...
April 20, 2018: Anesthesiology
https://www.readbyqxmd.com/read/29676839/analgesic-consumption-trajectories-in-8-975-patients-1-year-after-fast-track-total-hip-or-knee-arthroplasty
#5
C C Jørgensen, M Petersen, H Kehlet, E K Aasvang
BACKGROUND: Persistent or increased long-term opioid consumption has previously been described following total hip- (THA) and knee arthroplasty (TKA). However, detailed information on postoperative analgesic consumption trajectories and risk factors associated with continued need of analgesics in fast-track THA and TKA is sparse. METHODS: Descriptive multicenter study in primary unilateral fast-track THA or TKA with prospective data on patient characteristics and information on reimbursement entitled dispensed prescriptions of paracetamol, non-steroidal anti-inflammatory drugs, opioids, anticonvulsants, and antidepressants one month preoperatively and one year postoperatively...
April 20, 2018: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/29676836/visually-induced-analgesia-in-a-deep-tissue-experimental-pain-model-a-randomised-cross-over-experiment
#6
M J van Selm, W I Gibson, M J Travers, G L Moseley, D Hince, B M Wand
BACKGROUND: Visualizing one's own painful body part appears to have an effect on reported pain intensity. Furthermore, it seems that manipulating the size of the viewed image can determine the direction and extent of this phenomenon. When visual distortion has been applied to clinical populations the analgesic effects have been in opposition to those observed in some experimental pain models. To help resolve this problem we explored the effect of visualisation and magnification of the visual image on reported pain using a delayed onset muscle soreness (DOMS) pain model...
April 20, 2018: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/29676689/intravenous-acetaminophen-for-postoperative-supratentorial-craniotomy-pain-a-prospective-randomized-double-blinded-placebo-controlled-trial
#7
Walavan Sivakumar, Michael Jensen, Julie Martinez, Michael Tanana, Nancy Duncan, Robert Hoesch, Jay K Riva-Cambrin, Craig Kilburg, Safdar Ansari, Paul A House
OBJECTIVE Acute pain control after cranial surgery is challenging. Prior research has shown that patients experience inadequate pain control post-craniotomy. The use of oral medications is sometimes delayed because of postoperative nausea, and the use of narcotics can impair the evaluation of brain function and thus are used judiciously. Few nonnarcotic intravenous (IV) analgesics exist. The authors present the results of the first prospective study evaluating the use of IV acetaminophen in patients after elective craniotomy...
April 20, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29676437/nerve-entrapment-syndromes-in-dermatology-review-and-practical-approach-to-treatment
#8
REVIEW
Samuel Zagarella
A good understanding of cutaneous nerve entrapment syndromes is important for physicians to provide early and accurate diagnosis and treatment. These syndromes have traditionally been managed with analgesics, antidepressants or antiepileptic medication but this approach is often inadequate and causes frequent adverse medication effects. With early diagnosis and treatment, many nerve entrapment syndromes can be successfully managed with physical, non-pharmacological approaches including stretches, exercises and physiotherapy...
April 20, 2018: Australasian Journal of Dermatology
https://www.readbyqxmd.com/read/29676095/-chemical-constituents-from-roots-of-pieris-formosa-and-their-bioactivity
#9
Shu-Meng Xiao, Chang-Shan Niu, Yong Li, Zhi-Shu Tang, Jing Qu
By the means of chromatographic methods and spectroscopic evidences, 7 diterpenoids were isolated and identified from the roots of Pieris formosa. These known compounds are elucidated as secorhodomollolide C(1), pierisoid B (2), secorhodomollolide B (3), secorhodomollolide A (4), pierisformotoxin G (5), pierisformotoxin B (6) and pierisformotoxin A (7). Compounds 3, 4 were obtained from this plant for the first time. The analgesic activities of compounds 1-7 were evaluated using an acetic acidinduced writhing test in mice...
March 2018: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29676050/part-2-current-prescribing-trends-of-dental-non-antibacterial-medicines-in-australia-from-2013-to-2016
#10
L Teoh, K Stewart, R J Marino, M J McCullough
BACKGROUND: There is limited literature regarding dental prescribing preferences for medicines other than antibiotics. This study aimed to describe the prescribing trends of dispensed prescription medicines by dentists in Australia from 2013 and 2016 and assess adherence to current guidelines. METHODS: Data was accessed from the Department of Health of all dental prescriptions dispensed under the Pharmaceutical Benefits Scheme (PBS) from 2013 to 2016 and prescribing patterns were analysed...
April 19, 2018: Australian Dental Journal
https://www.readbyqxmd.com/read/29675772/phase-i-ii-study-of-radiofrequency-ablation-for-painful-bone-metastases-japan-interventional-radiology-in-oncology-study-group-0208
#11
Noboru Tanigawa, Yasuaki Arai, Koichiro Yamakado, Takeshi Aramaki, Yoshitaka Inaba, Susumu Kanazawa, Osamu Matsui, Masaya Miyazaki, Yoshihisa Kodama, Hiroshi Anai, Akihiro Hamanaka
PURPOSE: A prospective multicenter phase I/II trial was performed to evaluate the clinical safety and efficacy of radiofrequency ablation (RFA) for metastatic bone tumors. MATERIALS AND METHODS: Thirty-three patients (27 men, 6 women, mean age 61 years) with metastatic bone tumors were enrolled. In phase I, nine patients were enrolled, and the safety of RFA was evaluated. In phase II, 23 patients were included, and an intent-to-treat analysis was performed. The primary endpoint was to evaluate the treatment's safety...
April 12, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29675431/tapentadol-prolonged-release-reduces-the-severe-chronic-ischaemic-pain-and-improves-the-quality-of-life-in-patients-with-type-2-diabetes
#12
Anna Tedeschi, Alessandra De Bellis, Piergiorgio Francia, Arianna Bernini, Marco Perini, Elisabetta Salutini, Roberto Anichini
This study has been performed in diabetic type 2 patients with pain due to peripheral artery disease (PAD) in order to evaluate the efficacy and tolerability of tapentadol prolonged release (PR). Methods . 25 patients with type 2 diabetes (13 F and 12 M) were admitted in the study. The evaluation of the analgesic efficacy of tapentadol PR was based on both the assessment of the intensity of the pain (NRS scale from 0 to 10) and the nature of the pain (DN4 questionnaire) and on assessment of the patient's quality of life and state of health (SF-12 Health Survey)...
2018: Journal of Diabetes Research
https://www.readbyqxmd.com/read/29675050/analgesic-and-anti-inflammatory-effects-of-80-methanol-extract-of-leonotis-ocymifolia-burm-f-iwarsson-leaves-in-rodent-models
#13
Asnakech Alemu, Wondmagegn Tamiru, Teshome Nedi, Workineh Shibeshi
Background: Pain and inflammation are the major health problems commonly treated with traditional remedies mainly using medicinal plants. Leonotis ocymifolia is one of such medicinal plants used in folkloric medicine of Ethiopia. However, the plant has not been scientifically evaluated. The aim of this study was to evaluate analgesic and anti-inflammatory effects of the 80% methanol leaves extract of Leonotis ocymifolia using rodent models. Method: The central and peripheral analgesic effect of the extract at 100, 200, and 400 mg/kg dose levels was evaluated using hot plate and acetic acid induced writhing rodent models, whereas carrageenan induced paw edema and cotton pellet granuloma methods were used to screen anti-inflammatory effect of the extract at the same dose levels...
2018: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29675049/administration-of-intravenous-morphine-for-acute-pain-in-the-emergency-department-inflicts-an-economic-burden-in-europe
#14
Montserrat Casamayor, Karen DiDonato, Marc Hennebert, Luca Brazzi, Gregor Prosen
Background: Acute pain is among the leading causes of referral to the emergency department (ED) in industrialized countries. Its management mainly depends on intensity. Moderate-to-severe pain is treated with intravenous (IV) administered opioids, of which morphine is the most commonly used in the ED. We have estimated the burden of IV administration of morphine in the five key European countries (EU5) using a micro-costing approach. Scope: A structured literature review was conducted to identify clinical guidelines for acute pain management in EU5 and clinical studies conducted in the ED setting...
2018: Drugs in Context
https://www.readbyqxmd.com/read/29674340/opioid-analgesics-and-adverse-outcomes-among-hemodialysis-patients
#15
Julie H Ishida, Charles E McCulloch, Michael A Steinman, Barbara A Grimes, Kirsten L Johansen
BACKGROUND AND OBJECTIVES: Patients on hemodialysis frequently experience pain and may be particularly vulnerable to opioid-related complications. However, data evaluating the risks of opioid use in patients on hemodialysis are limited. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Using the US Renal Data System, we conducted a cohort study evaluating the association between opioid use (modeled as a time-varying exposure and expressed in standardized oral morphine equivalents) and time to first emergency room visit or hospitalization for altered mental status, fall, and fracture among 140,899 Medicare-covered adults receiving hemodialysis in 2011...
April 19, 2018: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/29673620/effects-of-opioid-and-non-opioid-analgesics-on-responses-to-psychosocial-stress-in-humans
#16
Anya K Bershad, Melissa A Miller, Greg J Norman, Harriet de Wit
Both preclinical and clinical evidence suggests that the endogenous opioid system is involved in responses to stress. For example, in animal models opioid agonists reduce isolation distress whereas opioid antagonists increase isolation distress. We recently reported that the mixed mu agonist and kappa antagonist buprenorphine dampened responses to acute psychosocial stress in humans. Now we extend this to study the effects of a pure mu-opioid agonist, hydromorphone, and a non-opioid analgesic, acetaminophen, on response to social stress...
April 16, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29673383/radiotherapy-for-calcaneodynia-achillodynia-painful-gonarthrosis-bursitis-trochanterica-and-painful-shoulder-syndrome-early-and-late-results-of-a-prospective-clinical-quality-assessment
#17
Oliver Micke, Eyup Ugrak, Stefan Bartmann, Irenaeus A Adamietz, Ulrich Schaefer, Rebecca Bueker, Klaus Kisters, M Heinrich Seegenschmiedt, Khashayar Fakhrian, Ralph Muecke
BACKGROUND: The aim of this prospective clinical quality assessment was to evaluate the short-term and long-term efficacy of low dose radiotherapy (RT) for calcaneodynia, achillodynia, painful gonarthrosis, painful bursitis trochanterica, and painful shoulder syndrome. METHODS: Between October 2011 and October 2013, patients with calcaneodynia, achillodynia, painful gonarthrosis, painful bursitis trochanterica, and painful shoulder syndrome were recruited for this prospective clinical quality assessment...
April 19, 2018: Radiation Oncology
https://www.readbyqxmd.com/read/29673329/comparison-of-electroencephalographic-changes-in-response-to-acute-electrical-and-thermal-stimuli-with-the-tail-flick-and-hot-plate-test-in-rats-administered-with-opiorphin
#18
Preet Singh, Kavitha Kongara, David Harding, Neil Ward, Venkata Sayoji Rao Dukkipati, Craig Johnson, Paul Chambers
BACKGROUND: The objective of this study was to compare the changes in the electroencephalogram (EEG) in response to noxious stimuli with tail flick and hot plate responses of rats administered opiorphin. METHODS: Female Sprague -Dawley rats (n = 8 per group) randomly received intravenous (IV) injection of morphine (1 mg/kg,) or opiorphin (2 mg/kg,) or saline (0.5 ml,) in each of the three testing methods (EEG, tail flick and hot plate). Each type of test (n = 24 per test) was conducted in different population of rats on separate occasions...
April 19, 2018: BMC Neurology
https://www.readbyqxmd.com/read/29672774/overdose-epidemic-linked-to-the-prescription-of-opioid-analgesics-in-the-united-states
#19
Josep Guardia Serecigni
Editorial.
April 5, 2018: Adicciones
https://www.readbyqxmd.com/read/29672368/pectoral-i-block-does-not-improve-postoperative-analgesia-after-breast-cancer-surgery-a-randomized-double-blind-dual-centered-controlled-trial
#20
Jérôme Cros, Patrick Sengès, Suzan Kaprelian, Julie Desroches, Caroline Gagnon, Anaïs Labrunie, Benoît Marin, Sabrina Crépin, Nathalie Nathan, Pierre Beaulieu
BACKGROUND AND OBJECTIVES: General anesthesia for breast surgery may be supplemented by using a regional anesthetic technique. We evaluated the efficacy of the first pectoral nerve block (Pecs I) in treating postoperative pain after breast cancer surgery. METHODS: A randomized, double-blind, dual-centered, placebo-controlled trial was performed. One hundred twenty-eight patients scheduled for unilateral breast cancer surgery were recruited. A multimodal analgesic regimen and surgeon-administered local anesthetic infiltration were used for all patients...
April 18, 2018: Regional Anesthesia and Pain Medicine
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