Results 1 to 10 of about 3,136 (222)

Biased, Bitopic, Opioid–Adrenergic Tethered Compounds May Improve Specificity, Lower Dosage and Enhance Agonist or Antagonist Function with Reduced Risk of Tolerance and Addiction

open access: yesPharmaceuticals, 2022
This paper proposes the design of combination opioid–adrenergic tethered compounds to enhance efficacy and specificity, lower dosage, increase duration of activity, decrease side effects, and reduce risk of developing tolerance and/or addiction ...
Robert Root-Bernstein
doaj   +1 more source

Opioid receptors [PDF]

open access: yesBJA Education, 2005
84670
McDonald, J, Lambert, DG
openaire   +4 more sources

Opioid Receptor-Mediated Regulation of Neurotransmission in the Brain

open access: yesFrontiers in Molecular Neuroscience, 2022
Opioids mediate their effects via opioid receptors: mu, delta, and kappa. At the neuronal level, opioid receptors are generally inhibitory, presynaptically reducing neurotransmitter release and postsynaptically hyperpolarizing neurons.
Kaitlin C. Reeves   +6 more
doaj   +1 more source

Computational Methods for Understanding the Selectivity and Signal Transduction Mechanism of Aminomethyl Tetrahydronaphthalene to Opioid Receptors

open access: yesMolecules, 2022
Opioid receptors are members of the group of G protein-couple receptors, which have been proven to be effective targets for treating severe pain. The interactions between the opioid receptors and corresponding ligands and the receptor’s activation by ...
Peng Xie   +8 more
doaj   +1 more source

Bidirectional Regulation of Opioid and Chemokine Function

open access: yesFrontiers in Immunology, 2020
The opioid family of GPCRs consists of the classical opioid receptors, designated μ-, κ-, and δ-opioid receptors, and the orphanin-FQ receptor, and these proteins are expressed on both neuronal and hematopoietic cells.
Thomas J. Rogers
doaj   +1 more source

Cocaine modulates the expression of opioid receptors and miR-let-7d in zebrafish embryos. [PDF]

open access: yesPLoS ONE, 2012
Prenatal exposure to cocaine, in mammals, has been shown to interfere with the expression of opioid receptors, which can have repercussions in its activity.
Roger López-Bellido   +3 more
doaj   +1 more source

Nucleus Tractus Solitarius Neurons Activated by Hypercapnia and Hypoxia Lack Mu Opioid Receptor Expression

open access: yesFrontiers in Molecular Neuroscience, 2022
Impaired chemoreflex responses are a central feature of opioid-induced respiratory depression, however, the mechanism through which mu opioid receptor agonists lead to diminished chemoreflexes is not fully understood.
Sebastian N. Maletz   +5 more
doaj   +1 more source

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

open access: yesFrontiers 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

Interactions between $β$-endorphin and kisspeptin neurons of the ewe arcuate nucleus are modulated by photoperiod [PDF]

open access: yesJournal of Neuroendocrinology, In press, 2023
Opioid peptides are well-known modulators of the central control of reproduction. Among them, dynorphin coexpressed in kisspeptin (KP) neurons of the arcuate nucleus (ARC) has been thoroughly studied for its autocrine effect on KP release through $\kappa$ opioid receptors.
arxiv   +1 more source

Mu Opioid Receptor Heterodimers Emerge as Novel Therapeutic Targets: Recent Progress and Future Perspective

open access: yesFrontiers in Pharmacology, 2020
Opioids are the most effective analgesics used in the clinical management of cancer pain or non-cancer pain. However, chronic opioids therapy can cause many side effects including respiratory depression, nausea, sedation, itch, constipation, analgesic ...
Li Zhang   +4 more
doaj   +1 more source

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