Results 41 to 50 of about 31,247 (253)

7‑hydroxymitragynine is an active metabolite of mitragynine and a key mediator of its analgesic effects [PDF]

, 2019
Mitragynina speciosa, more commonly known as kratom, is a plant native to Southeast Asia, the leaves of which have been used traditionally as a stimulant, analgesic, and treatment for opioid addiction.
Ansonoff, Michael, Gassaway, Madalee M., Grinnell, Steven G., Javitch, Jonathan A., Kruegel, Andrew C., Langreck, Cory, Le Rouzic, Valerie, Majumdar, Susruta, Pasternak, Gavril W., Pekarskaya, Elizabeth A., Pintar, John E., Sames, Dalibor, Uprety, Rajendra   +12 more
core   +3 more sources

Endogenous opioids regulate moment-to-moment neuronal communication and excitability

Nature Communications, 2017
The endogenous opioid system regulates fear and anxiety, but the underlying cellular mechanism is unclear. Winterset al. shows that in the intercalated cells (ITC) of the amygdala, endogenous opioids suppress glutamatergic inputs via the δ-opioid ...
Bryony L. Winters, Gabrielle C. Gregoriou, Sarah A. Kissiwaa, Oliver A. Wells, Danashi I. Medagoda, Sam M. Hermes, Neil T. Burford, Andrew Alt, Sue A. Aicher, Elena E. Bagley   +9 more
doaj   +1 more source

Contribution of CYP2D6 Functional Activity to Oxycodone Efficacy in Pain Management: Genetic Polymorphisms, Phenoconversion, and Tissue-Selective Metabolism

Pharmaceutics, 2021
Oxycodone is a widely used opioid for the management of chronic pain. Analgesic effects observed following the administration of oxycodone are mediated mostly by agonistic effects on the μ-opioid receptor.
Malavika Deodhar, Jacques Turgeon, Veronique Michaud   +2 more
doaj   +1 more source

Remifentanil post-conditioning attenuates cardiac ischemia-reperfusion injury via κ or δ opioid receptor activation [PDF]

, 2010
Background: Ischemic pre- or post-conditioning of the heart has been shown to involve opioid receptors. Remifentanil, an ultra-short-acting selective μ opioid receptor agonist in clinical use, pre-conditions the rat heart against ischemia-reperfusion ...
Irwin, MG, Jiang, LL, Li, R, Wong, GTC
core   +1 more source

The Efficacy of Peripheral Opioid Antagonists in Opioid-Induced Constipation and Postoperative Ileus: A Systematic Review of the Literature. [PDF]

, 2017
Opioid-induced constipation has a negative impact on quality of life for patients with chronic pain and can affect more than a third of patients. A related but separate entity is postoperative ileus, which is an abnormal pattern of gastrointestinal ...
Baratta, Jaime L., Grant, Alexander E., McNulty, Stephen E., Schwenk, Eric S., Torjman, Marc C., Viscusi, Eugene R.   +5 more
core   +1 more source

The Allosteric Mechanism of G‐Protein‐Coupled Receptors is Induced Fit, Not Conformational Selection

BioEssays, EarlyView.
Allosteric signaling of G‐protein‐coupled receptors (GPCRs) involves a population shift from inactive to active receptor conformations upon binding of ligand agonists. Kinetic and structural data indicate that this population shift is induced by ligand binding to inactive receptor conformations prior to the conformational change from inactive to active.
Kazem Asadollahi, Paul R. Gooley, Thomas R. Weikl   +2 more
wiley   +1 more source

UPLC–ESI–QToF–MS Profile of Hydroalcoholic Extract of Persea cordata (Meisn.) and its Antioedematogenic and Antinociceptive Effects in Mice

Chemistry &Biodiversity, EarlyView.
Hydroalcoholic crude extract of Persea cordata showed in its composition, the presence of lignans based on LCESIMS data. This crude extract displayed anti‐oedematogenic and antinociceptive activities in vivo. Abstract This study aimed to establish the chemical profile and evaluate the anti‐oedematogenic and analgesic activities of the hydroalcoholic ...
Valfredo Schlemper, Daniela Hemsing, Julia Elisabett K. Bolsonello, Susana R. de Mello Schlemper, Tiago Tizziani, Lutuima A. Capangue Neto, Louis P. Sandjo   +6 more
wiley   +1 more source

RESEARCH OF INFLUENCE OF POLYMORPHISM  Μ-OPIOID RECEPTOR  GENE ON THE TOTAL INTRAVENOUS ANAESTHESIA

Медицинский вестник Юга России, 2014
Purpose: To study the influence of polymorphism µ-opioid receptor for the total intravenous anesthesia.Materials and methods: The study included 100 patients, which were performed by various gynecological operations withthe entry into the abdominal ...
O. A. Maharin, Y. S. Maklyakov, V. M. Genilo   +2 more
doaj   +1 more source

Analgesic effectiveness and tolerability of oral oxycodone/naloxone and pregabalin in patients with lung cancer and neuropathic pain. An observational analysis [PDF]

, 2016
INTRODUCTION: Cancer-related pain has a severe negative impact on quality of life. Combination analgesic therapy with oxycodone and pregabalin is effective for treating neuropathic cancer pain.
Borghesi, Cristina, De Santis, Stefano, Fulvi, Alberto, Giovannoni, Daniele, Marcassa, Claudio, Migliorino, Maria Rita, Ricciardi, Serena   +6 more
core   +2 more sources

A Study on the Addictive Feature of Nonsuicidal Self‐Injury in Adolescents With Depression Disorders and Its Correlation With Serum Beta‐Endorphin Concentration and Neural Reward Responsiveness

iRADIOLOGY, EarlyView.
NSSI is addictive in adolescents with depression disorders. It may be related to the decrease of serum beta‐endorphin concentration and the activation of brain reward system. ABSTRACT Background Nonsuicidal self‐injury (NSSI) in adolescents with depression disorders often exhibits addictive patterns, potentially linked to serum beta‐endorphin levels ...
Jie Li, Xiaogang Zhu, Peiwen Zhang, Yuxing Wang, Jian Zhong, Yiming Wang, Lixia Yang   +6 more
wiley   +1 more source