Results 11 to 20 of about 21,048 (272)

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

Frontiers 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, Bincy Baby, Ranjit Vijayan, Ranjit Vijayan, Ranjit Vijayan   +4 more
doaj   +2 more sources

Design and development of novel, short, stable dynorphin-based opioid agonists for safer analgesic therapy

Frontiers in Pharmacology, 2023
Kappa opioid receptors have exceptional potential as an analgesic target, seemingly devoid of many problematic Mu receptor side-effects. Kappa-selective, small molecule pharmaceutical agents have been developed, but centrally mediated side-effects limit ...
Rink-Jan Lohman, Karnaker Reddy Tupally, Ajit Kandale, Peter J. Cabot, Harendra S. Parekh   +4 more
doaj   +1 more source

Opioidergic pathways and kisspeptin in the regulation of female reproduction in mammals

Frontiers in Neuroscience, 2022
Endogenous opioid peptides have attracted attention as critical neuropeptides in the central mechanism regulating female reproduction ever since the discovery that arcuate dynorphin neurons that coexpress kisspeptin and neurokinin B (NKB), which are also
Yoshihisa Uenoyama, Hitomi Tsuchida, Mayuko Nagae, Naoko Inoue, Hiroko Tsukamura   +4 more
doaj   +1 more source

Crosstalk between Opioid and Anti-Opioid Systems: An Overview and Its Possible Therapeutic Significance

Biomolecules, 2020
Opioid peptides and receptors are broadly expressed throughout peripheral and central nervous systems and have been the subject of intense long-term investigations.
Ewa Gibula-Tarlowska, Jolanta H. Kotlinska   +1 more
doaj   +1 more source

Anticholinesterase Inhibition, Drug-Likeness Assessment, and Molecular Docking Evaluation of Milk Protein-Derived Opioid Peptides for the Control of Alzheimer’s Disease

Dairy, 2022
The drug-likeness and pharmacokinetic properties of 23 dairy-protein-derived opioid peptides were studied using SwissADME and ADMETlab in silico tools. All the opioid peptides had poor drug-like properties based on violations of Lipinski’s rule-of-five ...
Dawei Ji, Jingying Ma, Junyi Dai, Min Xu, Paul W. R. Harris, Margaret A. Brimble, Dominic Agyei   +6 more
doaj   +1 more source

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

PLoS 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, Dagmar Hackel, Philipp Voigt, Shaaban Mousa, Andrea Stolz, Dominika Labuz, Michael Schäfer, Michael Schaefer, Christoph Stein, Alexander Brack   +9 more
doaj   +1 more source

Involvement of the Opioid Peptide Family in Cancer Progression

Biomedicines, 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, Francisco D. Rodríguez, Rafael Coveñas   +2 more
doaj   +1 more source

Peptidomimetics and Their Applications for Opioid Peptide Drug Discovery

Biomolecules, 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   +1 more source

Opioid Receptors in Immune and Glial Cells—Implications for Pain Control

Frontiers in Immunology, 2020
Opioid receptors comprise μ (MOP), δ (DOP), κ (KOP), and nociceptin/orphanin FQ (NOP) receptors. Opioids are agonists of MOP, DOP, and KOP receptors, whereas nociceptin/orphanin FQ (N/OFQ) is an agonist of NOP receptors.
Halina Machelska, Melih Ö. Celik
doaj   +1 more source

The role of respiratory failure caused by congenital central nervous system abnormalities and the effect of β-casomorphins in sudden infant death syndrome pathogenesis

Archives of Forensic Medicine and Criminology, 2015
The aim of the paper is to discuss the role of respiratory failure caused by endogenous (both structural and functional) abnormalities in the central nervous system and exogenous food-derived opioid-like peptides in the pathogenesis of sudden infant ...
Barbara Sumińska-Ziemann, Tomasz Gos, Zbigniew Jankowski   +2 more
doaj   +1 more source