Challenges and new opportunities for detecting endogenous opioid peptides in reward [PDF]
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 +2 more sources
Avian opioid peptides: evolutionary considerations, functional roles and a challenge to address critical questions [PDF]
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.
Krystyna Pierzchała-Koziec +1 more
doaj +2 more sources
Peptidomimetics and Their Applications for Opioid Peptide Drug Discovery [PDF]
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
Effects of Central Administration of Opioid Peptides, Vasotocin, Mesotocin, and Corticotrophin-Releasing Factor on Water Intake in Chicks [PDF]
Freedom from thirst is an undeniable requirement of the poultry industry. However, the regulatory mechanisms underlying water intake in chicks are not yet fully understood.
Yuhui Zhang +4 more
doaj +2 more sources
The atypical chemokine receptor ACKR3/CXCR7 is a broad-spectrum scavenger for opioid peptides [PDF]
Opioids modulate pain, anxiety and stress by activating four subtypes of opioid receptors. The authors show that atypical chemokine receptor 3 (ACKR3) is a scavenger for various endogenous opioid peptides regulating their availability without activating ...
Max Meyrath +13 more
doaj +2 more sources
Many signal transduction systems have an apparent redundancy built into them, where multiple physiological agonists activate the same receptors. Whether this is true redundancy, or whether this provides an as-yet unrecognized specificity in downstream ...
Jennifer M Kunselman +4 more
doaj +2 more sources
Homeostatic scaling of dynorphin signaling by a non-canonical opioid receptor [PDF]
The endogenous opioid system provides powerful control over emotions, nociception, and motivation among many other fundamental nervous system functions.
Xiaona Li +10 more
doaj +2 more sources
Episodic Ethanol Exposure in Adolescent Rats Causes Residual Alterations in Endogenous Opioid Peptides. [PDF]
Granholm L, Segerström L, Nylander I.
europepmc +3 more sources
The Expressing Patterns of Opioid Peptides, Anti-opioid Peptides and Their Receptors in the Central Nervous System Are Involved in Electroacupuncture Tolerance in Goats. [PDF]
Wan J, Qiu Z, Ding Y, Nan S, Ding M.
europepmc +2 more sources
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 +4 more
doaj +1 more source

