keyword
MENU ▼
Read by QxMD icon Read
search

Opioid tolerance

keyword
https://www.readbyqxmd.com/read/28933336/bioavailability-of-oxycodone-after-administration-of-a-new-prolonged-release-once-daily-tablet-formulation-in-healthy-subjects-in-comparison-to-an-established-twice-daily-tablet%C3%A2
#1
Bernhard Scheidel, Martina A Maritz, Yves J Gschwind, Kerstin Steigerwald, Volker Guth, Peter Kovacs, Helene Rey
OBJECTIVE: To evaluate and to compare the bioavailability, the influence of food intake on the bioavailability, and the safety and tolerability of a newly-developed oxycodone once-daily (OOD) prolonged-release tablet with an established oxycodone twice-daily (OTD) prolonged-release tablet after single-dose administration under fasting or fed conditions as well as after multiple-dose administration. MATERIALS AND METHODS: Three single-center, open-label, randomized, balanced, two-treatment, two-period, two-sequence crossover studies were conducted...
September 21, 2017: International Journal of Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28930612/genetic-addiction-risk-score-gars-%C3%A2-a-predictor-of-vulnerability-to-opioid-dependence
#2
Kenneth Blum, Amanda L C Chen, Panayotis K Thanos, Marcelo Febo, Zsolt Demetrovics, Kristina Dushaj, Abraham Kovoor, David Baron, David E Smith, Alphonso Kenison Roy Iii, Lyle Fried, Thomas J H Chen, Edwin Chapman, Edward Modestino, Bruce Steinberg, Rajendra D Badgaiyan
The interaction of neurotransmitters and genes that control the release of dopamine is the Brain Reward Cascade (BRC). Variations within the BRC, whether genetic or epigenetic, may predispose individuals to addictive behaviors and altered pain tolerance. This discussion authored by a group of concerned scientists and clinicians examines the Genetic Addiction Risk Score (GARS), the first test to accurately predict vulnerability to pain, addiction, and other compulsive behaviors, defined as Reward Deficiency Syndrome (RDS)...
January 1, 2018: Frontiers in Bioscience (Elite Edition)
https://www.readbyqxmd.com/read/28926159/randomized-controlled-feasibility-trial-of-intranasal-ketamine-compared-to-intranasal-fentanyl-for-analgesia-in-children-with-suspected-extremity-fractures
#3
Stacy L Reynolds, Kathleen K Bryant, Jonathan R Studnek, Melanie Hogg, Connell Dunn, Megan A Templin, Charity G Moore, James R Young, Katherine Rivera Walker, Michael S Runyon
OBJECTIVE: We compared the tolerability and efficacy of intranasal sub-dissociative ketamine to intranasal fentanyl for analgesia of children with acute traumatic pain and investigated the feasibility of a larger non-inferiority trial that could investigate the potential opioid sparing effects of intranasal ketamine. METHODS: This randomized controlled trial compared intranasal ketamine 1 mg/kg to intranasal fentanyl 1.5 μg/kg in children 4-17 years old with acute pain from suspected, isolated extremity fractures presenting to an urban level II pediatric trauma center from December 2015 to November 2016...
September 19, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28924009/site-specific-regulation-of-p2x7-receptor-function-in-microglia-gates-morphine-analgesic-tolerance
#4
Heather Leduc-Pessah, Nicholas L Weilinger, Churmy Y Fan, Nicole E Burma, Roger J Thompson, Tuan Trang
Tolerance to the analgesic effects of opioids is a major problem in chronic pain management. Microglia are implicated in opioid tolerance, but the core mechanisms regulating their response to opioids remain obscure. By selectively ablating microglia in the spinal cord using a saporin-conjugated antibody to Mac1, we demonstrate a causal role for microglia in the development, but not maintenance, of morphine tolerance in male rats. Increased P2X7 receptor (P2X7R) activity is a cardinal feature of microglial activation, and in this study we found that morphine potentiates P2X7R-mediated Ca(2+) responses in resident spinal microglia acutely isolated from morphine tolerant rats...
September 18, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28922338/does-the-%C3%AE-receptor-antagonist-esmolol-have-analgesic-effects-a-randomised-placebo-controlled-cross-over-study-on-healthy-volunteers-undergoing-the-cold-pressor-test
#5
Fredrik Ander, Anders Magnuson, Alex de Leon, Rebecca Ahlstrand
BACKGROUND: Esmolol may attenuate the sympathetic response to pain and reduce postoperative opioid consumption. It is not clear whether esmolol has an analgesic effect per se. OBJECTIVES: The aim of this study was to evaluate the analgesic effect of esmolol in the absence of anaesthetics and opioids. We tested the hypothesis that esmolol would reduce the maximum pain intensity perceived during the cold pressor test (CPT) by 2 points on a 0 to 10 numeric pain rating scale (NRS) compared to placebo...
September 15, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28919771/the-challenge-of-perioperative-pain-management-in-opioid-tolerant-patients
#6
REVIEW
Flaminia Coluzzi, Francesca Bifulco, Arturo Cuomo, Mario Dauri, Claudio Leonardi, Rita Maria Melotti, Silvia Natoli, Patrizia Romualdi, Gennaro Savoia, Antonio Corcione
The increasing number of opioid users among chronic pain patients, and opioid abusers among the general population, makes perioperative pain management challenging for health care professionals. Anesthesiologists, surgeons, and nurses should be familiar with some pharmacological phenomena which are typical of opioid users and abusers, such as tolerance, physical dependence, hyperalgesia, and addiction. Inadequate pain management is very common in these patients, due to common prejudices and fears. The target of preoperative evaluation is to identify comorbidities and risk factors and recognize signs and symptoms of opioid abuse and opioid withdrawal...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28914697/are-we-ready-to-treat-hepatitis-c-virus-in-individuals-with-opioid-use-disorder-assessment-of-readiness-in-european-countries-on-the-basis-of-an-expert-generated-model
#7
Nat Wright, Jens Reimer, Lorenzo Somaini, Carlos Roncero, Icro Maremmani, Nicolas Simon, Peter Krajci, Richard Littlewood, Oscar D'Agnone, Hannu Alho, Benjamin Rolland
Individuals with a history of injecting drugs have a high prevalence of chronic hepatitis C (HCV) infection. Many have a history of opioid use disorder (OUD). Despite novel treatments with improved efficacy and tolerability, treatment is limited in the group. A faculty of experts shared insights from clinical practice to develop an HCV care-readiness model. Evidence and expert knowledge was collected. Ten experts developed a model of three factors (with measures): 'healthcare engagement', 'guidance' and 'place'...
September 13, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28913486/the-switch-from-buprenorphine-to-tapentadol-is-it-worth
#8
REVIEW
Adriana Miclescu
Opioid analgesia continues to be the primary pharmacologic intervention for managing acute pain and malignant pain in both hospitalized and ambulatory patients. The increasing use of opioids in chronic nonmalignant pain is more problematic. Opioid treatment is complicated with the risks raised by adverse effects, especially cognitive disturbance, respiratory depression but also the risk of tolerance, opioid abuse and drug-disease interactions. Despite the growing number of available opioids within the last years, adequate trials of opioid rotation are lacking and most of the information is anecdotal...
October 2016: Rom J Anaesth Intensive Care
https://www.readbyqxmd.com/read/28906155/the-role-of-tapentadol-as-a-strong-opioid-in-cancer-pain-management-a-systematic-and-critical-review
#9
Sebastiano Mercadante
AIM: The aim of this review was to assess the role of tapentadol given at medium-high doses in opioid-tolerant patients for cancer pain management in place of step-3 analgesics. METHODS AND RESULTS: A systematic literature search was performed out of which six studies and one secondary analysis provided data regarding tapentadol used as a step-3 analgesic for this review. Tapentadol, when used at ≥60 mg of oral morphine equivalents in opioid-tolerant patients with cancer pain, or passing from step-2 doses to ≥60 mg of oral morphine equivalents, was well tolerated and effective and could be considered as a flexible drug to be used for the management of moderate-to-severe cancer pain...
September 21, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28902183/patient-characteristics-affect-the-response-to-ketamine-and-opioids-during-the-treatment-of-vaso-occlusive-episode-related-pain-in-sickle-cell-disease
#10
Raissa Nobrega, Kathy A Sheehy, Caroline Lippold, Amy L Rice, Julia C Finkel, Zenaide M N Quezado
BackgroundN-methyl-D-aspartate receptor activation has been implicated in the pathobiology of inflammatory, nociceptive and neuropathic pain, opioid tolerance, opioid-induced hyperalgesia, and central sensitization. Some of those mechanisms underlie sickle cell disease(SCD)-associated pain.MethodsWe conducted an exploratory cohort study of SCD patients who during vaso-occlusive episodes (VOEs) received subanesthetic doses of the N-methyl-D-aspartate receptor antagonist, ketamine, as an adjunct to opioids. We sought to identify predictors of changes in pain scores and of the percentage of ketamine infusions associated with meaningful changes (≥20% reduction) in pain and opioid consumption...
September 13, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28892721/glial-and-neuroinflammatory-targets-for-treating-substance-use-disorders
#11
REVIEW
Ryan K Bachtell, Jermaine D Jones, Keith G Heinzerling, Patrick M Beardsley, Sandra D Comer
BACKGROUND: The plenary session at the 2016 Behavior, Biology and Chemistry: Translational Research in Addiction Conference focused on glia as potential players in the development, persistence and treatment of substance use disorders. Glia partake in various functions that are important for healthy brain activity. Drugs of abuse alter glial cell activity producing several perturbations in brain function that are thought to contribute to behavioral changes associated with substance use disorders...
August 31, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28888771/c-terminal-hydrazide-modification-changes-the-spinal-antinociceptive-profiles-of-endomorphins-in-mice
#12
Chang-Lin Wang, Dai-Jun Yang, Bi-Yu Yuan, Yu Wang
Previously, we have demonstrated that endomorphins (EMs) analogs with C-terminal hydrazide modification retained the μ-opioid receptor affinity and selectivity, and exhibited potent antinociception after intracerebroventricular (i.c.v.) administration. In the present study, we extended our studies to evaluate the antinociceptive profiles of EMs and their analogs EM-1-NHNH2, EM-2-NHNH2 given spinally in the radiant heat paw withdrawal test. Following intrathecal (i.t.) administration, EM-1, EM-2, EM-1-NHNH2 and EM-2-NHNH2 dose-dependently increased the latency for paw withdrawal response...
September 6, 2017: Peptides
https://www.readbyqxmd.com/read/28888299/principles-of-burn-pain-management
#13
REVIEW
Dominika Lipowska James, Maryam Jowza
This article describes pathophysiology of burn injury-related pain and the basic principles of burn pain management. The focus is on concepts of perioperative and periprocedural pain management with extensive discussion of opioid-based analgesia, including patient-controlled analgesia, challenges of effective opioid therapy in opioid-tolerant patients, and opioid-induced hyperalgesia. The principles of multimodal pain management are discussed, including the importance of psychological counseling, perioperative interventional pain procedures, and alternative pain management options...
October 2017: Clinics in Plastic Surgery
https://www.readbyqxmd.com/read/28885516/treating-acute-pain-in-the-opiate-dependent-patient
#14
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/28879802/anti-nociceptive-interactions-between-opioids-and-a-cannabinoid-receptor-2-agonist-in-inflammatory-pain
#15
Matthew B Yuill, David E Hale, Josée Guindon, Daniel J Morgan
The cannabinoid 1 receptor and cannabinoid 2 receptor can both be targeted in the treatment of pain; yet, they have some important differences. Cannabinoid 1 receptor is expressed at high levels in the central nervous system, whereas cannabinoid 2 receptor is found predominantly, although not exclusively, outside the central nervous system. The objective of this study was to investigate potential interactions between cannabinoid 2 receptor and the mu-opioid receptor in pathological pain. The low level of adverse side effects and lack of tolerance for cannabinoid 2 receptor agonists are attractive pharmacotherapeutic traits...
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28877966/t-cell-mediation-of-pregnancy-analgesia-affecting-chronic-pain-in-mice
#16
Sarah F Rosen, Boram Ham, Shannon Drouin, Nadia Boachie, Anne-Julie Chabot-Dore, Jean-Sebastien Austin, Luda Diatchenko, Jeffrey S Mogil
It has been consistently reported that many female chronic pain sufferers have an attenuation of symptoms during pregnancy. Rats display increased pain tolerance during pregnancy, due to an increase in opioid receptors in the spinal cord. These past studies did not consider the role of non-neuronal cells, now appreciated to play an important role in chronic pain processing. Using an inflammatory (complete Freund's adjuvant) or neuropathic (spared nerve injury) model of persistent pain, we observe that young adult female mice in early pregnancy switch from a micgrolia-independent to a microglia-dependent pain hypersensitivity mechanism...
September 6, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28871199/morphine-induced-hyperalgesia-involves-mu-opioid-receptors-and-the-metabolite-morphine-3-glucuronide
#17
Laurie-Anne Roeckel, Valérie Utard, David Reiss, Jinane Mouheiche, Hervé Maurin, Anne Robé, Emilie Audouard, John N Wood, Yannick Goumon, Frédéric Simonin, Claire Gaveriaux-Ruff
Opiates are potent analgesics but their clinical use is limited by side effects including analgesic tolerance and opioid-induced hyperalgesia (OIH). The Opiates produce analgesia and other adverse effects through activation of the mu opioid receptor (MOR) encoded by the Oprm1 gene. However, MOR and morphine metabolism involvement in OIH have been little explored. Hence, we examined MOR contribution to OIH by comparing morphine-induced hyperalgesia in wild type (WT) and MOR knockout (KO) mice. We found that repeated morphine administration led to analgesic tolerance and hyperalgesia in WT mice but not in MOR KO mice...
September 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28864447/use-of-parecoxib-by-continuous-subcutaneous-infusion-for-cancer-pain-in-a-hospice-population
#18
Peter Armstrong, Pauline Wilkinson, Noleen K McCorry
OBJECTIVES: To characterise the use of the parenteral non-steroidal anti-inflammatory drug parecoxib when given by continuous subcutaneous infusion (CSCI) in a hospice population. Clinical experience suggests parecoxib CSCI may be of benefit in this population, but empirical evidence in relation to its safety and efficacy is lacking. METHODS: Retrospective chart review of patients with a cancer diagnosis receiving parecoxib CSCI from 2008 to 2013 at the Marie Curie Hospice, Belfast...
September 1, 2017: BMJ Supportive & Palliative Care
https://www.readbyqxmd.com/read/28862903/medication-assisted-treatment-for-opioid-addiction-in-the-united-states-critique-and-commentary
#19
Karen McElrath
In the United States, buprenorphine products (namely buprenorphine/naloxone combination) and methadone are the primary forms of medication-assisted treatment (MAT) that are authorized for addressing opioid addiction. Although treatment ideologies differentiate MAT programs, much of the provision in the US reflects a model of "high threshold, low tolerance." This model is discussed with a focus on structural and programmatic barriers that shape access to and retention in MAT. The critique continues with a discussion of multifaceted stigma that reinforces spoiled identities and diffuses into treatment settings...
September 1, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/28860712/a-comparison-of-oral-controlled-release-morphine-and-oxycodone-with-transdermal-formulations-of-buprenorphine-and-fentanyl-in-the-treatment-of-severe-pain-in-cancer-patients
#20
Krzysztof Nosek, Wojciech Leppert, Hanna Nosek, Jerzy Wordliczek, Dariusz Onichimowski
AIM OF THE STUDY: To compare analgesia and adverse effects during oral morphine and oxycodone and transdermal fentanyl and buprenorphine administration in cancer patients with pain. PATIENTS AND METHODS: Cancer patients treated at home and in outpatient clinics with severe pain (numerical rating scale score 6-10) fail to respond to non-opioids and/or weak opioids. All patients were randomized to either morphine, oxycodone, fentanyl or buprenorphine and divided into subgroups with predominant neuropathic and nociceptive pain component...
2017: Drug Design, Development and Therapy
keyword
keyword
11395
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"