Results 31 to 40 of about 81,908 (215)
Cellular Tolerance Induced by Chronic Opioids in the Central Nervous System
Frontiers in Systems Neuroscience, 2022 Opioids are powerful analgesics that elicit acute antinociceptive effects through their action the mu opioid receptor (MOR). However opioids are ineffective for chronic pain management, in part because continuous activation of MORs induces adaptive ...
Sweta Adhikary, John T. Williams
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Bidirectional Regulation of Opioid and Chemokine Function
Frontiers 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
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Opioid and cannabinoid receptors
Current Opinion in Neurobiology, 1994 Opioids and cannabinoids are two major classes of drugs with important clinical uses as well as significant side effects. Recently, the three major subtypes of opioid receptors, delta, kappa and mu, have been cloned. Both the endogenous cannabinoids and their receptors have also recently been cloned.
Terry Reisine, Michael J. Brownstein
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BiomedicinesThe development of opioid tolerance in patients on long-term opioid analgesic treatment is an unsolved matter in clinical practice thus far. Dose escalation is required to restore analgesic efficacy, but at the price of side effects.
Anna Rita Galambos +6 more
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Experimental and Molecular Medicine, 2018 Pain medicine: Boosting the potency of opioid analgesics A hormone known to weaken the pain-relieving effects of opioid drugs does so because of interaction between the hormone receptor and the opioid receptor.
Yin Yang +5 more
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Journal of Pharmacological Sciences, 2005 The effect of loperamide on tachykinin NK2- and NK3-receptor-mediated 5-HT outflow from guinea pig colonic mucosa was investigated in vitro. The selective tachykinin NK2-receptor agonist [β-Ala8]-neurokinin A4–10 (βAla-NKA) or the selective NK3-receptor ...
Shu-ichi Kojima +2 more
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GRKs as Key Modulators of Opioid Receptor Function
Cells, 2020 Understanding the link between agonist-induced phosphorylation of the mu-opioid receptor (MOR) and the associated physiological effects is critical for the development of novel analgesic drugs and is particularly important for understanding the ...
Laura Lemel +2 more
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Heteromerization Modulates mu Opioid Receptor Functional Properties in vivo
Frontiers in Pharmacology, 2018 Mu opioid receptors modulate a large number of physiological functions. They are in particular involved in the control of pain perception and reward properties.
Muzeyyen Ugur +2 more
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Opposite effects of neuropeptide FF on central antinociception induced by endomorphin-1 and endomorphin-2 in mice. [PDF]
PLoS ONE, 2014 Neuropeptide FF (NPFF) is known to be an endogenous opioid-modulating peptide. Nevertheless, very few researches focused on the interaction between NPFF and endogenous opioid peptides. In the present study, we have investigated the effects of NPFF system
Zi-long Wang +10 more
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Frontiers in Oncology, 2022 BackgroundOpioid receptors are expressed not only by neural cells in the central nervous system, but also by many solid tumor cancer cells. Whether perioperative opioids given for analgesia after tumor resection surgery might inadvertently activate tumor
Amparo Belltall +16 more
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