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therapeutic uses of morphine

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https://www.readbyqxmd.com/read/29237389/venlafaxine-attenuates-the-development-of-morphine-tolerance-and-dependence-role-of-l-arginine-nitric-oxide-cgmp-pathway
#1
Mohammad Taghi Mansouri, Bahareh Naghizadeh, Behnam Ghorbanzadeh, Soheila Alboghobeish, Gholamreza Houshmand, Neda Amirgholami
BACKGROUND: Severe pain reduce quality of life in patients with various diseases, often because chronic morphine therapy results in reduced analgesic effectiveness, or tolerance, leading to escalating doses and distressing adverse effects. Nitric oxide (NO) play a role in morphine tolerance and dependence. OBJECTIVE: Venlafaxine, an antidepressant, is known to modulate nitric oxide (NO) pathway in nervous tissues. In the present study the effect of systemic venlafaxine (VLF) on the development of morphine tolerance and dependence, acute morphine-induced antinociception, and the probable involvement of the L-arginine/NO/cGMP pathway in these effects were investigated in mice...
December 13, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/29223722/the-effectiveness-of-intravenous-parecoxib-on-the-incidence-of-ipsilateral-shoulder-pain-after-thoracotomy-a-randomized-double-blind-placebo-controlled-trial
#2
Tanyong Pipanmekaporn, Yodying Punjasawadwong, Somrat Charuluxananan, Worawut Lapisatepun, Pavena Bunburaphong, Settapong Boonsri, Apichat Tantraworasin, Nutchanart Bunchungmongkol
OBJECTIVES: To determine the incidence of ipsilateral shoulder pain (ISP) with the therapeutic use of parecoxib compared with a placebo after thoracotomy. DESIGN: A prospective, randomized, double-blind, placebo-controlled trial. SETTING: A tertiary-care university hospital. PARTICIPANTS: Adult patients undergoing an elective thoracotomy between June 2011 and February 2015. INTERVENTIONS: Patients were allocated randomly into the parecoxib group (n = 80) and the control group (n = 80)...
June 1, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29223632/comparative-morbidity-of-cubital-tunnel-surgeries-a-prospective-cohort-study
#3
Robert Staples, Dan London, Agnes Z Dardas, Charles A Goldfarb, Ryan P Calfee
PURPOSE: Randomized controlled trials have not identified a superior surgical approach to cubital tunnel syndrome surgery. This study evaluates the early morbidity of open in situ decompression and transposition. METHODS: This prospective cohort study enrolled 125 adult patients indicated for cubital tunnel surgery at a tertiary institution. Exclusion criteria included preoperative use of narcotics and concurrent elbow procedures. In situ decompressions (n = 47) and ulnar nerve transpositions (n = 78) were performed...
December 6, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29189168/targeting-cytokines-for-morphine-tolerance-a-narrative-review
#4
Dai-Qiang Liu, Ya-Qun Zhou, Feng Gao
BACKGROUND: Despite its various side effects, morphine has been widely used in clinics for decades due to its powerful analgesic effect. Morphine tolerance is one of the major side effects which hinders its long-term usage for pain therapy. Currently, the thorough cellular and molecular mechanisms underlying morphine tolerance remain largely uncertain. METHODS: We searched the PubMed database with Medical subject headings (MeSH) including 'morphine tolerance', 'cytokines', 'interleukin 1', 'interleukin 1 beta', 'interleukin 6', 'tumor necrosis factor alpha', 'interleukin 10', 'chemokines'...
November 28, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/29187328/survey-of-the-prescription-of-step-2-analgesics-in-persons-aged-75-years-and-older-in-general-practitioners
#5
Adrien Brocard, Sofia Da Silva, Maurice Giroud, Alain Putot, Patrick Manckoundia
Although step-2 analgesics (S2A) are recommended when step-1 analgesics (S1A) are ineffective or in cases of moderate to severe pain, their efficacy varies. This study evaluated the place attributed by general practitioners (GPs) to S2A in the treatment of nociceptive pain in elderly persons (EP). Descriptive, transversal and declarative study conducted among GPs in Burgundy. In total, 115 GPs took part in the survey. Among these, 60.8% had at least one consultation/day for pain. After paracetamol, which was systematically preferred, 56...
December 1, 2017: Gériatrie et Psychologie Neuropsychiatrie du Vieillissement
https://www.readbyqxmd.com/read/29175519/a-new-tridecapeptide-with-an-octaarginine-vector-has-analgesic-therapeutic-potential-and-prevents-morphine-induced-tolerance
#6
Vladimir A Kashkin, Elena V Shekunova, Michail I Titov, Ivan I Eliseev, Maxim A Gureev, Yuri B Porozov, Marina N Makarova, Valery G Makarov
A growing body of evidence suggests that peptides may possess analgesic effects without tolerance development. The synthetic tetrapeptide Tyr-d-Arg-Phe-Gly-NH2 was modified with the inclusion of a (d-Arg)8 vector to prevent the action of endopeptidase and to increase the duration of the analgesic action of the tetrapeptide when administered orally. The aim of this study was to estimate the analgesic efficacy of the tetrapeptide with (d-Arg)8 (tridecapeptide, TDP) in experimental models of acute and chronic pain...
November 24, 2017: Peptides
https://www.readbyqxmd.com/read/29170340/43%C3%A2-management-of-acute-low-back-pain-in-the-ed-a-systematic-review
#7
Jane Ashbrook, Nikos Rodgdakis, Peter Goodwin, Gill Yeowell, Michael Callaghan
STUDY OBJECTIVE: There is no consensus on the management of low back pain in the ED and evidence suggests that these patients are likely to receive unwarranted imaging and inappropriate opioid prescription.The purpose of this study is to review the available literature pertaining to the clinical management of acute low back pain in the ED. METHODS: The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) and Realist And Meta-narrative Evidence Syntheses: Evolving Standards (RAMESES) guidelines were observed during this review...
December 2017: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/29158691/project-for-the-introduction-of-prehospital-analgesia-with-fentanyl-and-morphine-administered-by-specially-trained-paramedics-in-a-rural-service-area-in-germany
#8
Maximilian Scharonow, Timo Alberding, Wolfgang Oltmanns, Christian Weilbach
Background: In patients with serious illness or trauma, reduction of severe pain is a key therapeutic goal of emergency medical service (EMS) teams. In Germany, only physicians are allowed to use opioid analgesics. In the rural EMS area studied, the mean arrival time for paramedics is 8 minutes, 23 seconds, and for the rescue physician between 10 minutes, 30 seconds and 16 minutes, 59 seconds, depending on EMS site. In cases of parallel callouts, rescue-physician arrival times may be considerably longer...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/29153631/human-abuse-potential-of-brivaracetam-in-healthy-recreational-central-nervous-system-depressant-users
#9
Kerri A Schoedel, Armel Stockis, Edward M Sellers
BACKGROUND: Brivaracetam is a new antiepileptic drug indicated for adjunctive treatment of focal seizures in adults at a dose of 50-200mg/day taken in two equal doses. The objective of this study was to evaluate the abuse potential of brivaracetam compared with alprazolam (positive control), placebo, and levetiracetam. METHODS: This was a randomized, double-blind, triple-dummy, crossover study in healthy male and female recreational central nervous system (CNS) depressant users aged 18-55years, who could distinguish between the subjective effects of alprazolam 2mg and placebo...
November 15, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29147885/proceedings-of-the-2017-isev-symposium-on-hiv-neurohiv-drug-abuse-evs
#10
Guoku Hu, Sowmya Yelamanchili, Fatah Kashanchi, Norman Haughey, Vincent C Bond, Kenneth W Witwer, Lynn Pulliam, Shilpa Buch
Despite the success of combination antiretroviral therapy (cART), there is increased prevalence of HIV-associated neurocognitive disorders (HAND) in HIV-1-infected individuals on cART, which poses a major health care challenge. Adding further complexity to this long-term antiretroviral use is the comorbidity with drugs of abuse such as morphine, cocaine, and methamphetamine, which can in turn, exacerbate neurologic and cognitive deficits associated with HAND. Furthermore, HIV proteins, such as the transactivator of transcription (Tat) and the envelope protein (gp120), as well as antiretrovirals themselves can also contribute to the progression of neurodegeneration underlying HAND...
November 16, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/29121296/are-perioperative-therapeutic-doses-of-statins-associated-with-postoperative-pain-and-opioid-consumption-after-hip-surgery-under-spinal-anaesthesia
#11
W Saasouh, S Leung, H O Yilmaz, O Koyuncu, J You, N M Zimmerman, K Ruetzler, A Turan
Background: The anti-inflammatory effects of statins have been suggested to relieve postoperative pain. This retrospective study tested the association between the perioperative routine use of statins in therapeutic doses, and opioid requirements and pain scores, after hip replacement surgery. Methods: With IRB approval, data was obtained for adult patients who had elective hip replacement surgery under spinal anaesthesia at Cleveland Clinic between 2005 and 2015...
October 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29072187/substance-abuse-and-cancer
#12
G I Moussas, A G Papadopoulou
Substance abuse is a health problem with serious psychological and psychiatric dimensions and multiple social and economic consequences. Cancer is a disease that threatens not only life and physical integrity but mental health as well. Oncology patients suffer from mental disorders in high rates, especially from depression and anxiety. The role of substance abuse in the pathogenesis of cancer is studied systematically, since there are research data supporting the mutagenic effects of certain substances. It has been supported that a possible dysregulation of the immune system is linked to the oncogenic processes induced by substances of abuse...
July 2017: Psychiatrikē, Psychiatriki
https://www.readbyqxmd.com/read/29069579/blockade-of-endothelin-receptors-reduces-tumor-induced-ongoing-pain-and-evoked-hypersensitivity-in-a-rat-model-of-facial-carcinoma-induced-pain
#13
Caroline Machado Kopruszinski, Renata Cristiane Dos Reis, Eder Gambeta, Alexandra Acco, Giles Alexander Rae, Tamara King, Juliana Geremias Chichorro
Pain reported by patients with head and neck cancer is characterized as persistent pain with mechanical allodynia. Pain management is inadequate for many patients, highlighting the need for improved therapies. We examined the hypothesis that the mixed endothelin ETA and ETB receptor antagonist, bosentan, reduces tumor-induced ongoing pain and evoked hypersensitivity in a rat model of facial cancer pain. Facial cancer was induced by inoculating a suspension of Walker-256 cells into the rat's right vibrissal pad...
October 22, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29043488/hair-analysis-does-not-allow-to-discriminate-between-acute-and-chronic-administrations-of-a-drug-in-young-children
#14
Jean Claude Alvarez, Laetitia Lasne, Isabelle Etting, Gérard Chéron, Véronique Abadie, Nicolas Fabresse, Islam Amine Larabi
There are many differences between the hair from children and that of adult subjects, the hair being thinner, more porous with a different growth rate from the usual 1 cm/month observed in adults. In order to determine whether hair analysis could discriminate between chronic use and acute administration of a drug in children like in adults, we analyzed hair from 18 children aged between 1 day and 15 years in whom the administration of different drugs was known (single therapeutic administration or acute intoxication)...
October 18, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/29026331/poorly-controlled-postoperative-pain-prevalence-consequences-and-prevention
#15
REVIEW
Tong J Gan
This review provides an overview of the clinical issue of poorly controlled postoperative pain and therapeutic approaches that may help to address this common unresolved health-care challenge. Postoperative pain is not adequately managed in greater than 80% of patients in the US, although rates vary depending on such factors as type of surgery performed, analgesic/anesthetic intervention used, and time elapsed after surgery. Poorly controlled acute postoperative pain is associated with increased morbidity, functional and quality-of-life impairment, delayed recovery time, prolonged duration of opioid use, and higher health-care costs...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28991118/truncated-%C3%AE-opioid-receptors-with-6-transmembrane-domains-are-essential-for-opioid-analgesia
#16
Zhigang Lu, Jin Xu, Mingming Xu, Grace C Rossi, Susruta Majumdar, Gavril W Pasternak, Ying-Xian Pan
BACKGROUND: Most clinical opioids act through μ-opioid receptors. They effectively relieve pain but are limited by side effects, such as constipation, respiratory depression, dependence, and addiction. Many efforts have been made toward developing potent analgesics that lack side effects. Three-iodobenzoyl-6β-naltrexamide (IBNtxA) is a novel class of opioid active against thermal, inflammatory, and neuropathic pain, without respiratory depression, physical dependence, and reward behavior...
October 4, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28988976/role-of-endogenous-melatoninergic-system-in-development-of-hyperalgesia-and-tolerance-induced-by-chronic-morphine-administration-in-rats
#17
Yuchao Fan, Xiao Liang, Rurong Wang, Li Song
Morphine is a widely used analgesic for various types of pain. However, its efficacy is impeded by development of hyperalgesia and tolerance. Melatonin has antinociceptive effect and is involved in morphine-induced hyperalgesia and tolerance but the mechanism of its involvement remains to be defined. In this study, we established a rat model of morphine-induced hyperalgesia and tolerance. We determined the serum level of melatonin and expression of μ-opioid receptor (MOR), melatonin receptor (MT1, MT2) and protein kinase C γ(PKCγ) in the spinal dorsal horn of the rats with morphine-induced hyperalgesia and tolerance...
October 6, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28982207/transient-receptor-potential-vanilloid-1-inhibitors-block-laparotomy-and-opioid-induced-infarct-size-reduction-in-rats
#18
Helen M Heymann, Yun Wu, Yao Lu, Nir Qvit, Garrett J Gross, Eric R Gross
BACKGROUND AND PURPOSE: In light of the opioid epidemic, physicians are increasingly prescribing non-opioid analgesics to surgical patients. Transient receptor potential vanilloid 1 (TRPV1) inhibitors are potentially alternative pain therapeutics for surgery. Here we examined in rodents whether cardioprotection conferred by two occurrences during surgery, a laparotomy or morphine delivery, is mediated by TRPV1. We further tested whether an experimental analgesic peptide (known as P5) targeted against the TRPV1 C-terminus region interferes with laparotomy- or morphine-induced cardioprotection...
October 5, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28967123/antidepressant-like-effects-of-bu10119-a-novel-buprenorphine-analogue-with-mixed-kappa-mu-opioid-receptor-antagonist-properties-in-mice
#19
Abdulrahman Almatroudi, Mehrnoosh Ostovar, Christopher P Bailey, Stephen M Husbands, Sarah J Bailey
BACKGROUND AND PURPOSE: Κ-opioid receptor antagonists have potential for treating neuropsychiatric disorders. We have investigated the in vivo pharmacology of a novel buprenorphine analogue, BU10119, for the first time. EXPERIMENTAL APPROACH: To determine the opioid pharmacology of BU10119 (0.3-3 mg/kg, i.p.) in vivo, the warm-water tail withdrawal assay was used in adult male CD1 mice. A range of behavioural paradigms was used to investigate the locomotor effects, rewarding properties and antidepressant or anxiolytic potential of BU10119...
October 1, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28963507/peroxiredoxin-6-mediates-g%C3%AE-i-protein-coupled-receptor-inactivation-by-cjun-kinase
#20
Selena S Schattauer, Benjamin B Land, Kathryn L Reichard, Antony D Abraham, Lauren M Burgeno, Jamie R Kuhar, Paul E M Phillips, Shao En Ong, Charles Chavkin
Inactivation of opioid receptors limits the therapeutic efficacy of morphine-like analgesics and mediates the long duration of kappa opioid antidepressants by an uncharacterized, arrestin-independent mechanism. Here we use an iterative, discovery-based proteomic approach to show that following opioid administration, peroxiredoxin 6 (PRDX6) is recruited to the opioid receptor complex by c-Jun N-terminal kinase (JNK) phosphorylation. PRDX6 activation generates reactive oxygen species via NADPH oxidase, reducing the palmitoylation of receptor-associated Gαi in a JNK-dependent manner...
September 29, 2017: Nature Communications
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