Results 1 to 10 of about 50,862 (338)

Mycobacteria attenuate nociceptive responses by formyl peptide receptor triggered opioid peptide release from neutrophils. [PDF]

open access: yesPLoS Pathogens, 2009
In inflammation, pain is regulated by a balance of pro- and analgesic mediators. Analgesic mediators include opioid peptides which are secreted by neutrophils at the site of inflammation, leading to activation of opioid receptors on peripheral sensory ...
Heike L Rittner   +9 more
doaj   +5 more sources

Involvement of the Opioid Peptide Family in Cancer Progression [PDF]

open access: yesBiomedicines, 2023
Peptides mediate cancer progression favoring the mitogenesis, migration, and invasion of tumor cells, promoting metastasis and anti-apoptotic mechanisms, and facilitating angiogenesis/lymphangiogenesis.
Manuel Lisardo Sánchez   +2 more
doaj   +2 more sources

Evaluation of [Cys(ATTO 488)8]Dermorphin-NH2 as a novel tool for the study of μ-opioid peptide receptors. [PDF]

open access: yesPLoS ONE, 2021
The μ-opioid peptide (MOP) receptor is a member of the opioid receptor family and an important clinical target for analgesia. Measuring MOP receptor location and tracking its turnover traditionally used radiolabels or antibodies with attendant problems ...
Despina Giakomidi   +9 more
doaj   +2 more sources

Peptidomimetics and Their Applications for Opioid Peptide Drug Discovery [PDF]

open access: yesBiomolecules, 2022
Despite various advantages, opioid peptides have been limited in their therapeutic uses due to the main drawbacks in metabolic stability, blood-brain barrier permeability, and bioavailability.
Yeon Sun Lee
doaj   +2 more sources

Mechanistic Understanding of Peptide Analogues, DALDA, [Dmt1]DALDA, and KGOP01, Binding to the Mu Opioid Receptor [PDF]

open access: yesMolecules, 2020
The mu opioid receptor (MOR) is the primary target for analgesia of endogenous opioid peptides, alkaloids, synthetic small molecules with diverse scaffolds, and peptidomimetics.
Maria Dumitrascuta   +4 more
doaj   +3 more sources

Challenges and new opportunities for detecting endogenous opioid peptides in reward [PDF]

open access: yesAddiction Neuroscience, 2022
The endogenous opioid peptide system, comprised of enkephalins, endorphins, dynorphins, and nociceptin, is a highly complex neurobiological system. Opioid peptides are derived from four precursor molecules and undergo several processing events yielding ...
Sineadh M. Conway   +2 more
doaj   +3 more sources

An opioid-like system regulating feeding behavior in C. elegans [PDF]

open access: yeseLife, 2015
Neuropeptides are essential for the regulation of appetite. Here we show that neuropeptides could regulate feeding in mutants that lack neurotransmission from the motor neurons that stimulate feeding muscles. We identified nlp-24 by an RNAi screen of 115
Mi Cheong Cheong   +3 more
doaj   +4 more sources

A Bicyclic Analog of the Linear Peptide Arodyn Is a Potent and Selective Kappa Opioid Receptor Antagonist [PDF]

open access: yesMolecules
Kappa opioid receptor (KOR) antagonists have potential therapeutic applications in the treatment of stress-induced relapse to substance abuse and mood disorders.
Solomon A. Gisemba   +3 more
doaj   +2 more sources

In vivo detection of optically-evoked opioid peptide release [PDF]

open access: yeseLife, 2018
Though the last decade has seen accelerated advances in techniques and technologies to perturb neuronal circuitry in the brain, we are still poorly equipped to adequately dissect endogenous peptide release in vivo.
Ream Al-Hasani   +8 more
doaj   +2 more sources

Insights into the interaction between hemorphins and δ-opioid receptor from molecular modeling [PDF]

open access: yesFrontiers in Molecular Biosciences
Hemorphins are short atypical opioid peptide fragments embedded in the β-chain of hemoglobin. They have received considerable attention recently due to their interaction with opioid receptors.
Priya Antony   +4 more
doaj   +2 more sources

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