Results 31 to 40 of about 118,382 (307)

BmK-YA, an enkephalin-like peptide in scorpion venom. [PDF]

PLoS ONE, 2012
By screening extracts of venom from the Asian scorpion Buthus martensii Karsch (BmK) for their abilities to activate opioid receptors, we have identified BmK-YA, an amidated peptide containing an enkephalin-like sequence. BmK-YA is encoded by a precursor
Yan Zhang, Junyan Xu, Zhiwei Wang, Xiuli Zhang, Xinmiao Liang, Olivier Civelli   +5 more
doaj   +1 more source

Modulation of Neurally Mediated Vasodepression and Bradycardia by Electroacupuncture through Opioids in Nucleus Tractus Solitarius. [PDF]

, 2018
Stimulation of vagal afferent endings with intravenous phenylbiguanide (PBG) causes both bradycardia and vasodepression, simulating neurally mediated syncope.
Fu, Liang-Wu, Guo, Zhi-Ling, Longhurst, John C, Tjen-A-Looi, Stephanie C   +3 more
core   +3 more sources

Peripheral sensitization increases opioid receptor expression and activation by crotalphine in rats.

PLoS ONE, 2014
Inflammation enhances the peripheral analgesic efficacy of opioid drugs, but the mechanisms involved in this phenomenon have not been fully elucidated. Crotalphine (CRP), a peptide that was first isolated from South American rattlesnake C.d.
Vanessa Olzon Zambelli, Ana Carolina de Oliveira Fernandes, Vanessa Pacciari Gutierrez, Julio Cesar Batista Ferreira, Carlos Amilcar Parada, Daria Mochly-Rosen, Yara Cury   +6 more
doaj   +1 more source

In Vitro Analyses of Spinach-Derived Opioid Peptides, Rubiscolins: Receptor Selectivity and Intracellular Activities through G Protein- and β-Arrestin-Mediated Pathways

Molecules, 2021
Activated opioid receptors transmit internal signals through two major pathways: the G-protein-mediated pathway, which exerts analgesia, and the β-arrestin-mediated pathway, which leads to unfavorable side effects. Hence, G-protein-biased opioid agonists
Yusuke Karasawa, Kanako Miyano, Hideaki Fujii, Takaaki Mizuguchi, Yui Kuroda, Miki Nonaka, Akane Komatsu, Kaori Ohshima, Masahiro Yamaguchi, Keisuke Yamaguchi, Masako Iseki, Yasuhito Uezono, Masakazu Hayashida   +12 more
doaj   +1 more source

Molecular and cellular mechanisms of the age-dependency of opioid analgesia and tolerance

Molecular Pain, 2012
The age-dependency of opioid analgesia and tolerance has been noticed in both clinical observation and laboratory studies. Evidence shows that many molecular and cellular events that play essential roles in opioid analgesia and tolerance are actually age-
Zhao Jing, Xin Xin, Xie Guo-xi, Palmer Pamela, Huang Yu-guang   +4 more
doaj   +1 more source

The effects of pioglitazone, a PPARγ receptor agonist, on the abuse liability of oxycodone among nondependent opioid users [PDF]

, 2016
Aims: Activation of PPARγ by pioglitazone (PIO) has shown some efficacy in attenuating addictive-like responses in laboratory animals. The ability of PIO to alter the effects of opioids in humans has not been characterized in a controlled laboratory ...
Alonzo, Banks, Begelow, Beitner-Johnson, Berger, Bhargava, Bland, Bush, Bussiere, Carr, Chang, Cone, Cooper, de Guglielmo, de Guglielmo, Dhalla, Eisenstein, Eisenstein, Eisenstein, Eng, Ferguson, Fraser, Gagnon, Garrido, Gelinas, Gillies, Hopkins, Hutchinson, Hutchinson, Hutchinson, Jeanne M. Manubay, Jermaine D. Jones, Johnston, Katz, Kielian, Kreutzberg, Ledeboer, Levine, Maria A. Sullivan, Marie-Claire, Martin, Mellon, Moreno, Nakajima, Narita, Pacifici, Pelvig, Roberto Ciccocioppo, Sandra D. Comer, Sarruf, Shanthi Mogali, Song, SPSS, Stoll, Stopponi, Stopponi, Strain, Sweitzer, Tawfik, Tontonoz, Verena E. Metz, Verkhratsky, Walker, Walker, Walsh, Walsh, Watkins, Watkins, Wightman, Woods, Wybran, Zacny, Zacny, Zacny, Zhang   +74 more
core   +1 more source

Targeting peripheral opioid receptors to promote analgesic and anti-inflammatory actions

Frontiers in Pharmacology, 2013
Mechanisms of endogenous pain control are significant. Increasing studies have clearly produced evidence for the clinical usefulness of opioids in peripheral analgesia.
Katerina eIwaszkiewicz, Jennifer eSchneider, Susan eHua   +2 more
doaj   +1 more source

IUPHAR Review - Bivalent and bifunctional opioid receptor ligands as novel analgesics

Pharmacological Research, 2023
Though efficacious in managing chronic, severe pain, opioid analgesics are accompanied by significant adverse effects including constipation, tolerance, dependence, and respiratory depression.
Kyle J. Rehrauer, Christopher W. Cunningham   +1 more
doaj   +1 more source

BU10038 as a safe opioid analgesic with fewer side-effects after systemic and intrathecal administration in primates [PDF]

, 2019
© 2019 British Journal of Anaesthesia. Published by Elsevier Ltd. All rights reserved.Background: The marked increase in mis-use of prescription opioids has greatly affected our society. One potential solution is to develop improved analgesics which have
Cami-Kobeci, Gerta, Czoty, Paul W., DeLoid, Heather B., Ding, Huiping, Hsu, Fang Chi, Husbands, Stephen M., Kiguchi, Norikazu, Ko, Mei Chuan, Sukhtankar, Devki D., Toll, Lawrence   +9 more
core   +5 more sources

Delta-opioid receptor endocytosis in spinal cord after dermenkephalin activation

BMC Neuroscience, 2000
Background The delta(δ)-opioid receptors belong to the G protein-coupled receptors and in vitro studies have shown that δ-opioid receptors undergo an internalization process in response to agonist stimulation.
Gastard Myriam
doaj   +1 more source