Results 41 to 50 of about 729,259 (302)
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 +5 more
doaj +1 more source
Atypical opioid receptors: unconventional biology and therapeutic opportunities [PDF]
, 2022 Endogenous opioid peptides and prescription opioid drugs modulate pain, anxiety and stress by activating four opioid receptors, namely μ (mu, MOP), δ (delta, DOP), κ (kappa, KOP) and the nociceptin/orphanin FQ receptor (NOP). Interestingly, several other
Canals, Meritxell +11 more
core +1 more source
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 +6 more
doaj +1 more source
The opioid receptor: emergence through millennia of pharmaceutical sciences
Frontiers in Pain Research, 2023 Throughout history humanity has searched for an optimal approach to the use of opioids that maximizes analgesia while minimizing side effects. This review reflects upon the conceptualization of the opioid receptor and the critical role that the ...
Carolyn A. Fairbanks +4 more
doaj +1 more source
Biased ligands at opioid receptors: Current status and future directions [PDF]
, 2021 The opioid crisis represents a major worldwide public health crisis that has accelerated the search for safer and more effective opioids. Over the past few years, the identification of biased opioid ligands capable of eliciting selective functional ...
Che T +3 more
core +2 more sources
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 +4 more
doaj +1 more source
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
Receptors for morphine and opioids
General Pharmacology: The Vascular System, 1976 Two points concerning enzymatic systems acting on disposal of morphine are discussed, namely the multiplicity of glucuronyltransferase and the effect of nalorphine on N-demethylation of morphine. Evidences of the presence of at least two different glucuronyltransferases in microsomes of rat liver, kidney and intestine are presented. These evidences are
Sánchez, Emílio +2 more
openaire +3 more sources
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 +2 more
doaj +1 more source