Results 51 to 60 of about 448,610 (243)

Perspectives on Endogenous Opioids in Birds

open access: yesFrontiers in Physiology, 2018
The present review summarizes the state of knowledge of endogenous opioids in birds. Endogenous opioid peptides acts in a neuromodulatory, hormonal and paracrine manner to mediate analgesic and other physiological functions.
Colin G. Scanes   +1 more
doaj   +1 more source

Concomitant duplications of opioid peptide and receptor genes before the origin of jawed vertebrates. [PDF]

open access: yesPLoS ONE, 2010
BACKGROUND: The opioid system is involved in reward and pain mechanisms and consists in mammals of four receptors and several peptides. The peptides are derived from four prepropeptide genes, PENK, PDYN, PNOC and POMC, encoding enkephalins, dynorphins ...
Görel Sundström   +2 more
doaj   +1 more source

Histamine and the mechanisms of nausea and vomiting: Translating the uncertain pharmacology of cyclizine

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
Abstract Cyclizine is a long‐established, short‐acting drug, registered for preventing motion sickness, post‐operative nausea and vomiting (PONV) and ‘vomiting of known cause’. The latter is not defined but may include pregnancy and patients receiving palliative care, historically accepted without large, controlled trials.
Gareth J. Sanger, Paul L. R. Andrews
wiley   +1 more source

Hemorphins—From Discovery to Functions and Pharmacology

open access: yesMolecules, 2021
During the last three decades, a variety of different studies on bioactive peptides that are opioid receptor ligands, have been carried out, with regard to their isolation and identification, as well as their molecular functions in living organisms. Thus,
Przemyslaw Mielczarek   +7 more
doaj   +1 more source

Glycosylated dendrimer nanoamplifiers hijack DNA damage‐immune crosstalk for enhanced dual‐track therapy of orthotopic glioblastoma

open access: yesBMEMat, EarlyView.
A glycosylated dendrimer nanoamplifier hijacks DNA damage‐immune crosstalk for enhanced radio‐immunotherapy of glioblastoma. The responsive release of demethylcantharidin simultaneously blocks repair‐mediated resistance by inhibiting DNA repair and overcomes adaptive immune resistance.
Cong Song   +10 more
wiley   +1 more source

Involvement of the endogenous opioid system in the psychopharmacological actions of ethanol: the role of acetaldehyde

open access: yesFrontiers in Behavioral Neuroscience, 2013
Significant evidence implicates the endogenous opioid system (opioid peptides and receptors) in the mechanisms underlying the psychopharmacological effects of ethanol.
Laura eFont   +2 more
doaj   +1 more source

Estradiol and Mu opioid-mediated reward: The role of estrogen receptors in opioid use

open access: yesAddiction Neuroscience, 2023
Opioid use and opioid use disorder are characterized by sex and gender differences, and some of these differences may be mediated by differences in the hormonal milieu within and across individuals.
Sarah B. Ethridge, Mark A. Smith
doaj   +1 more source

DataSheet3_Avian opioid peptides: evolutionary considerations, functional roles and a challenge to address critical questions.DOCX

open access: yes, 2023
The present review considers the putative hormonal opioid peptides in birds. In birds and all other vertebrates, there are four opioid related genes encoding a series of peptides.
Colin G. Scanes (12344602)   +1 more
core   +1 more source

Antimicrobial Peptides and Peptidomimetics in Foods – A Synthetic Foray

open access: yesChemFoodChem, EarlyView.
This Review discusses AMPs in foods and their syntheses. It espouses facile methods to make them accessible and suggests their utility in the mitigation and eradication of the burgeoning maladies of antimicrobial and multidrug resistance (AMR and MDR).
Josephat U. Izunobi   +2 more
wiley   +1 more source

Tryptophan Substitution in CJ-15,208 (cyclo[Phe-D-Pro-Phe-Trp]) Introduces δ-Opioid Receptor Antagonism, Preventing Antinociceptive Tolerance and Stress-Induced Reinstatement of Extinguished Cocaine-Conditioned Place Preference

open access: yesPharmaceuticals, 2023
The macrocyclic tetrapeptide CJ-15,208 (cyclo[Phe-D-Pro-Phe-Trp]) and its D-Trp isomer exhibit kappa opioid receptor (KOR) antagonism which prevents stress-induced reinstatement of extinguished cocaine-conditioned place preference. Here, we evaluated the
Kristen H. Scherrer   +7 more
doaj   +1 more source

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