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therapeutic uses of morphine

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https://www.readbyqxmd.com/read/27917339/morphine-versus-methylprednisolone-or-aminophylline-for-relieving-dyspnea-in-patients-with-advanced-cancer-in-china-a-retrospective-study
#1
Cong Tian, Jiong-Yi Wang, Mei-Ling Wang, Bin Jiang, Lu-Lu Zhang, Feng Liu
CONTEXT: Dyspnea is one of the most common and distressing symptoms that occurs in terminal cancer patients. However, there are no existing treatment guidelines for this condition in China. OBJECTIVE: This single-center, retrospective, observational study aimed to compare the efficacy of using morphine, methylprednisolone, or aminophylline to relieve the symptom of breathlessness in patients with advanced malignant tumors and to investigate the safety of these regimens during the treatment of dyspnea...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27914629/cytoplasmic-fmr1-interacting-protein-2-is-a-major-genetic-factor-underlying-binge-eating
#2
Stacey L Kirkpatrick, Lisa R Goldberg, Neema Yazdani, R Keith Babbs, Jiayi Wu, Eric R Reed, David F Jenkins, Amanda F Bolgioni, Kelsey I Landaverde, Kimberly P Luttik, Karen S Mitchell, Vivek Kumar, W Evan Johnson, Megan K Mulligan, Pietro Cottone, Camron D Bryant
BACKGROUND: Eating disorders are lethal and heritable; however, the underlying genetic factors are unknown. Binge eating is a highly heritable trait associated with eating disorders that is comorbid with mood and substance use disorders. Therefore, understanding its genetic basis will inform therapeutic development that could improve several comorbid neuropsychiatric conditions. METHODS: We assessed binge eating in closely related C57BL/6 mouse substrains and in an F2 cross to identify quantitative trait loci associated with binge eating...
October 25, 2016: Biological Psychiatry
https://www.readbyqxmd.com/read/27902847/food-deprivation-facilitates-reinstatement-of-morphine-induced-conditioned-place-preference-role-of-intra-accumbal-dopamine-d2-like-receptors-in-associating-reinstatement-of-morphine-cpp-with-stress
#3
Fatemeh Sadeghzadeh, Vahab Babapour, Abbas Haghparast
The high rate of relapse to drug use is one of the main problems in the treatment of addiction. Stress plays the essential role in drug abuse and relapse; nevertheless, little is known about the mechanisms underlying stress and relapse. Accordingly, the effects of intra-accumbal administration of Sulpiride, as a dopamine D2-like receptor antagonist, on an ineffective morphine dose+food deprivation(FD)- and morphine priming-induced reinstatement of conditioned place preference (CPP). 104 adult male albino Wistar rats weighing 200-280g were bilaterally implanted by cannula into the nucleus accumbens (NAc)...
November 30, 2016: Synapse
https://www.readbyqxmd.com/read/27900785/a-tryptoline-ring-distortion-strategy-leads-to-complex-and-diverse-biologically-active-molecules-from-the-indole-alkaloid-yohimbine
#4
Nicholas Paciaroni, Ranjala Ratnayake, James Matthews, Verrill Norwood, Austin Arnold, Long Dang, Hendrik Luesch, Robert William Huigens Iii
High-throughput screening (HTS) is the primary driver to current drug discovery efforts. New therapeutic agents that enter the market are a direct reflection of the structurally simple compounds that make up screening libraries. Unlike medically relevant natural products (e.g., morphine), small molecules currently being screened have low fraction sp3 character and few, if any, stereogenic centers. Although simple compounds have been useful in drugging certain biological targets (e.g., protein kinases), more sophisticated targets (e...
November 29, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27895265/gut-homeostasis-microbial-dysbiosis-and-opioids
#5
Fuyuan Wang, Sabita Roy
Gut homeostasis plays an important role in maintaining animal and human health. The disruption of gut homeostasis has been shown to be associated with multiple diseases. The mutually beneficial relationship between the gut microbiota and the host has been demonstrated to maintain homeostasis of the mucosal immunity and preserve the integrity of the gut epithelial barrier. Currently, rapid progress in the understanding of the host-microbial interaction has redefined toxicological pathology of opioids and their pharmacokinetics...
November 28, 2016: Toxicologic Pathology
https://www.readbyqxmd.com/read/27890603/a-novel-inhibitor-of-endocannabinoid-catabolic-enzymes-sheds-light-on-behind-the-scene-interplay-between-chronic-pain-analgesic-tolerance-and-heroin-dependence
#6
Josée Guindon
From the Aristotelian ancient Greece, pain has been associated with appetites or emotions and is opposite to pleasure. Reward and addiction is also linked to pleasure and compulsive drug seeking reinstates pleasure. Alleviation of chronic pain can induce a euphoric phase similar to what is found in addiction. Both chronic pain and addiction are recognized as a disease of the central nervous system. They share many characteristics and brain regions/mechanisms. Evidence points to the usefulness of cannabinoids as a new class of agents to add to the pharmaceutical toolbox in the management of chronic pain...
November 25, 2016: Neuropharmacology
https://www.readbyqxmd.com/read/27752976/pharmacogenomics-and-pharmacogenetics-for-the-intensive-care-unit-a-narrative-review
#7
Meghan MacKenzie, Richard Hall
PURPOSE: Knowledge of how alterations in pharmacogenomics and pharmacogenetics may affect drug therapy in the intensive care unit (ICU) has received little study. We review the clinically relevant application of pharmacogenetics and pharmacogenomics to drugs and conditions encountered in the ICU. SOURCE: We selected relevant literature to illustrate the important concepts contained within. PRINCIPAL FINDINGS: Two main approaches have been used to identify genetic abnormalities - the candidate gene approach and the genome-wide approach...
October 17, 2016: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/27746699/morphine-dependence-is-attenuated-by-red-ginseng-extract-and-ginsenosides-rh2-rg3-and-compound-k
#8
Taddesse Yayeh, Kyunghwa Yun, Soyong Jang, Seikwan Oh
BACKGROUND: Red ginseng and ginsenosides have shown plethoric effects against various ailments. However, little is known regarding the effect of red ginseng on morphine-induced dependence and tolerance. We therefore investigated the effect of red ginseng extract (RGE) and biotransformed ginsenosides Rh2, Rg3, and compound K on morphine-induced dependence in mice and rats. METHODS: While mice were pretreated with RGE and then morphine was injected intraperitoneally, rats were infused with ginsenosides and morphine intracranially for 7 days...
October 2016: Journal of Ginseng Research
https://www.readbyqxmd.com/read/27744679/identification-of-the-first-marine-derived-opioid-receptor-balanced-agonist-with-a-signaling-profile-that-resembles-the-endorphins
#9
Tyler A Johnson, Laura Milan-Lobo, Tao Che, Madeline Ferwerda, Eptisam Lambo, Nicole L McIntosh, Fei Li, Li He, Nicholas Lorig-Roach, Phillip Crews, Jennifer Lynne Whistler
Opioid therapeutics are excellent analgesics, whose utility is compromised by dependence. Morphine (1) and its clinically relevant derivatives such as OxyContin® (4), Vicodin® (5) and Dilaudid® (6) are "biased" agonists at the µ opioid receptor (OR), wherein they engage G-protein signaling but poorly engage β-arrestin and the endocytic machinery. In contrast, the endorphins, met-enkephalin (14) and β-endorphin (15), endogenous peptide agonists for ORs, are more potent analgesics then 1, show reduced liability for tolerance and dependence, and engage both G-protein and β-arrestin pathways as "balanced" agonists...
October 17, 2016: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/27742411/inhibition-of-reinforcing-hyperalgesic-and-motor-effects-of-morphine-by-buspirone-in-rats
#10
Darakhshan Jabeen Haleem, Shazia Nawaz
: Morphine and other opioids are among the most effective prescription medications for the treatment of pain. Addiction and hyperalgesia associated with their long-term use limits the clinical utility of these drugs. In view of a role of somatodendritic serotonin-1A receptors in addiction and analgesic effects of morphine, the present study concerns effects of co-use of buspirone, a partial agonist at the serotonin-1A receptor, on reinforcing, hyperalgesic, and motor effects of morphine in rats...
October 11, 2016: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/27734075/efficacy-of-prasugrel-administration-immediately-after-percutaneous-coronary-intervention-in-st-elevation-myocardial-infarction
#11
Ulrike Flierl, Florian Zauner, Jan-Thorben Sieweke, Christine Berliner, L Christian Napp, Jochen Tillmanns, Johann Bauersachs, Andreas Schäfer
Prasugrel, a potent thienopyridine, achieves stronger inhibition of platelet activation than clopidogrel. However, onset of inhibition is significantly delayed in patients with acute ST-elevation myocardial infarction (STEMI), as haemodynamic instability and morphine application seem to exhibit significant influence. Since rapid onset of effect was demonstrated in non-STEMI patients when prasugrel was administered only after percutaneous coronary intervention (PCI) without increasing cardiovascular event rates we assessed the efficacy of prasugrel loading immediately after PCI for STEMI instead of pre-loading before revascularisation...
October 13, 2016: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/27707973/t394a-mutation-at-the-%C3%AE-opioid-receptor-blocks-opioid-tolerance-and-increases-vulnerability-to-heroin-self-administration-in-mice
#12
Xiao-Fei Wang, Elisabeth Barbier, Yi-Ting Chiu, Yi He, Jia Zhan, Guo-Hua Bi, Hai-Ying Zhang, Bo Feng, Lee-Yuan Liu-Chen, Jia Bei Wang, Zheng-Xiong Xi
: The etiology and pathophysiology underlying opioid tolerance and dependence are still unknown. Because mu opioid receptor (MOR) plays an essential role in opioid action, many vulnerability-related studies have focused on single nucleotide polymorphisms of MOR, particularly on A118G. In this study, we found that a single-point mutation at the MOR T394 phosphorylation site could be another important susceptive factor in the development of opioid tolerance and dependence in mice. T394A mutation, in which a threonine at 394 was replaced by an alanine, did not alter agonist binding to MOR and opioid analgesia, but resulted in loss of etorphine-induced MOR internalization in spinal dorsal horn neurons and opioid analgesic tolerance induced by either morphine or etorphine...
October 5, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27685788/enhancement-of-orofacial-antinociceptive-effect-of-carvacrol-a-monoterpene-present-in-oregano-and-thyme-oils-by-%C3%AE-cyclodextrin-inclusion-complex-in-mice
#13
Juliane C Silva, Jackson R G S Almeida, Jullyana S S Quintans, Rajiv Gandhi Gopalsamy, Saravanan Shanmugam, Mairim Russo Serafini, Maria R C Oliveira, Bruno A F Silva, Anita O B P B Martins, Fyama F Castro, Irwin R A Menezes, Henrique D M Coutinho, Rita C M Oliveira, Parimelazhagan Thangaraj, Adriano A S Araújo, Lucindo J Quintans-Júnior
Orofacial pain is associated with diagnosis of chronic pain of head, face, mouth, neck and all the intraoral structures. Carvacrol, a naturally occurring isoprenoid with diverse class of biological activities including anti-inflammatory, analgesic, antitumor and antioxidant properties. Now, the antinociceptive effect was studied in mice pretreatment with carvacrol (CARV) and β-cyclodextrin complex containing carvacrol (CARV-βCD) in formalin-, capsaicin-, and glutamate- induced orofacial nociception. Mice were pretreated with vehicle (0...
September 26, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27676680/intrathecal-bupivacaine-monotherapy-with-a-retrograde-catheter-for-the-management-of-complex-regional-pain-syndrome-of-the-lower-extremity
#14
W Porter McRoberts, Catalina Apostol, Abdul Haleem
UNLABELLED: Complex regional pain syndrome (CRPS) presents a therapeutic challenge due to its many presentations and multifaceted pathophysiology. There is no approved treatment algorithm and clinical interventions are often applied empirically. In cases of CRPS where symptoms are localized to an extremity, a targeted treatment is indicated. We describe the use of intrathecal bupivacaine monotherapy, delivered through a retrograde catheter, in the treatment of CRPS affecting the lower extremity...
September 2016: Pain Physician
https://www.readbyqxmd.com/read/27636225/an-expert-review-of-pharmacogenomics-of-sickle-cell-disease-therapeutics-not-yet-ready-for-global-precision-medicine
#15
Khuthala Mnika, Gift D Pule, Collet Dandara, Ambroise Wonkam
Sickle cell disease (SCD) is a blood disease caused by a single nucleotide substitution (T > A) in the beta globin gene on chromosome 11. The single point mutation (Glu6Val) promotes polymerization of hemoglobin S (HbS) and causes sickling of erythrocytes. Vaso-occlusive painful crises are associated with recurrent and long-term use of analgesics/opioids and hydroxyurea (HU) by people living with SCD. The present analysis offers a state-of-the-art expert review of the effectiveness of pharmacogenomics/genetics of pain management in SCD, with specific focus on HU and opioids...
October 2016: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/27626479/metabolism-and-pharmacokinetics-of-morphine-in-neonates-a-review
#16
Gian Maria Pacifici
Morphine is an agonist of the µ and k receptors, whose activation results in analgesia. Morphine-like agonists act through the µ opioid receptors to cause pain relief, sedation, euphoria and respiratory depression. Morphine is glucuronidated and sulfated at positions 3 and 6; the plasma concentration ratios correlate positively with birth weight, which probably reflects increased liver weight with increasing birth weight. Moreover, morphine clearance correlates positively with gestational age and birth weight...
August 2016: Clinics
https://www.readbyqxmd.com/read/27578606/review-of-drug-utilization-patterns-in-nicus-worldwide
#17
N Krzyżaniak, I Pawłowska, B Bajorek
WHAT IS KNOWN AND OBJECTIVES: When considering acute care settings, such as the neonatal intensive care unit (NICU), the inappropriate use of medicines poses a great risk to vulnerable babies at the start of their lives. However, there is limited published literature that explores the current medication management practices in NICUs and where the main misuse issues lie. Therefore, the purpose of this review was to give an overview of medicine use in NICUs worldwide and identify therapeutic areas requiring more targeted pharmaceutical care...
August 31, 2016: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/27533032/structure-based-discovery-of-opioid-analgesics-with-reduced-side-effects
#18
Aashish Manglik, Henry Lin, Dipendra K Aryal, John D McCorvy, Daniela Dengler, Gregory Corder, Anat Levit, Ralf C Kling, Viachaslau Bernat, Harald Hübner, Xi-Ping Huang, Maria F Sassano, Patrick M Giguère, Stefan Löber, Da Duan, Grégory Scherrer, Brian K Kobilka, Peter Gmeiner, Bryan L Roth, Brian K Shoichet
Morphine is an alkaloid from the opium poppy used to treat pain. The potentially lethal side effects of morphine and related opioids-which include fatal respiratory depression-are thought to be mediated by μ-opioid-receptor (μOR) signalling through the β-arrestin pathway or by actions at other receptors. Conversely, G-protein μOR signalling is thought to confer analgesia. Here we computationally dock over 3 million molecules against the μOR structure and identify new scaffolds unrelated to known opioids...
August 17, 2016: Nature
https://www.readbyqxmd.com/read/27519154/morphine-amplifies-mechanical-allodynia-via-tlr4-in-a-rat-model-of-spinal-cord-injury
#19
Amanda Ellis, Peter M Grace, Julie Wieseler, Jacob Favret, Kendra Springer, Bryce Skarda, Monica Ayala, Mark R Hutchinson, Scott Falci, Kenner C Rice, Steven F Maier, Linda R Watkins
Central neuropathic pain (CNP) is a pervasive, debilitating problem that impacts thousands of people living with central nervous system disorders, including spinal cord injury (SCI). Current therapies for treating this type of pain are ineffective and often have dose-limiting side effects. Although opioids are one of the most commonly used CNP treatments, recent animal literature has indicated that administering opioids shortly after a traumatic injury can actually have deleterious effects on long-term health and recovery...
November 2016: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/27504514/mechanisms-of-corneal-pain-and-implications-for-postoperative-pain-after-laser-correction-of-refractive-errors
#20
REVIEW
Renato Garcia, Daniel C de Andrade, Manoel J Teixeira, Siro S Nozaki, Samir J Bechara
OBJECTIVE: The cornea is the target of most surgeries for refractive disorders, as myopia. It is estimated that almost 1 million patients undergo corneal refractive surgery each year in the United States. Refractive surgery includes photorefractive keratectomy (PRK) that produces intense postoperative pain. This review presents the main pain mechanisms behind PRK-related pain and the available therapeutic options for its management. METHODS: Data sources included literature of cornea anatomy, treatment of PRK postoperative pain, mechanisms of corneal pain, in 3 electronic databases: Pubmed, Scopus, and Web of Science...
May 2016: Clinical Journal of Pain
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