15 articles for “Opioid”

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Research ArticleOpen accessIn the abstractBioanalytical Method Validation and Quantification of Flupirtine in Canine Plasma by HPLC with Spectrofluorimetric DetectionVirginia De Vito, Alessandro Saba, Helen Owen, Mario GiorgiFlupirtine (FLU) is a non-opioid analgesic drug belongs to the class of N-Methyl-D-Aspartate (NMDA) antagonist without antipyretic or antiphlogistic properties. No analytical method to detect FLU in canine plasma samples through a fluorimetric detector has been published to date. The analytical method described in this work provides a selective and accurate quantification of FLU. The mobile phase consisted of ACN:AcONH4 … …American Journal of Animal and Veterinary Sciences, Vol. 10, Issue 2 · 22 Jun 2015 · 7,982 accessesView PDF Cite

Research ArticleOpen accessIn the abstractBlockade of Group I Metabotropic Glutamate Receptors (mGluRs) Activation Inhibits Nociception Following Descending Colon Distension in SheepBogdan F. Kania, Danuta Wrońska, Mikołaj A. GralakExpression of mGluRs of groups I and II was found in structures of CNS closely related with nociception: spinal cord superficial fields, responsible for pain filling or modulation of neurotransmission in the peripheral receptors. The present study examined contribution of mGluRs to the development and maintenance of changes in behavioral and clinical symptoms caused by visceral pain. Experiments were carried … …American Journal of Animal and Veterinary Sciences, Vol. 9, Issue 4 · 24 Dec 2014 · 7,427 accessesView PDF Cite

Research ArticleOpen accessIn the abstractEffect of Intravenous Ketamine Administration on Blood Glucose Levels in Conscious RabbitsSuleiman I. Sharif, Hanan A. AbouazraProblem statement: The intravenous general anaesthetic ketamine has been shown to produce changes in blood glucose levels. It is important to study the pharmacological basis of such an effect. Approach: The influence of varying doses of ketamine administered intravenously was studied in conscious rabbits. Serum glucose was determined by blood glucose method using an enzymatic PAP250 kit. Results: Low doses … …American Journal of Pharmacology and Toxicology, Vol. 4, Issue 2 · 30 Jun 2009 · 9,945 accessesView PDF Cite

Research ArticleOpen accessIn the abstractSelective Lymphocyte Activation and Inhibition of In Vitro Tumor Cell Growth by Novel MorphinansRicardo Gomez-Flores, Kimberly R. Vietti, William J. Dunn et al.Opioids can suppress immune functions and increase susceptibility to developing cancer and infectious diseases. Recently, novel opioid compounds have been synthesized that lack immunosuppressive effects. We evaluated the effects of morphinans with substituted pyrimidine (methyl, phenyl, hydroxy, and amino groups) and pyrazole groups on in vitro rat thymic lymphocyte and splenic macrophage functions, and tumor cell growth. We observed that … …American Journal of Immunology, Vol. 2, Issue 1 · 5 Mar 2005 · 7,078 accessesView PDF Cite

Research ArticleOpen accessIn the abstractOpiates Upregulate Adhesion Molecule Expression in Brain MicroVascular Endothelial Cells (BMVEC): Implications for Altered Blood Brain Barrier (BBB) PermeabilityMadhavan P.N. Nair, Supriya D. Mahajan, Jessica L. ReynoldsThe blood-brain barrier (BBB) is an intricate cellular system composed of vascular endothelial cells and perivascular astrocytes that restrict the passage of immunocompetent cells into the central nervous system (CNS). Expression of the adhesion molecules, intercellular adhesion molecule 1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) on brain microvascular endothelial cells (BMVEC) and their interaction with human immunodeficiency virus (HIV-1) … …American Journal of Infectious Diseases, Vol. 2, Issue 2 · 30 Jun 2006 · 6,610 accessesView PDF Cite