Results 21 to 30 of about 61,786 (167)
Pharmacological Profiles of Oligomerized μ-Opioid Receptors
Opioids are widely prescribed pain relievers with multiple side effects and potential complications. They produce analgesia via G-protein-protein coupled receptors: μ-, δ-, κ-opioid and opioid receptor-like 1 receptors.
Ing-Kang Ho, Cynthia Wei-Sheng Lee
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BmK-YA, an enkephalin-like peptide in scorpion venom. [PDF]
By screening extracts of venom from the Asian scorpion Buthus martensii Karsch (BmK) for their abilities to activate opioid receptors, we have identified BmK-YA, an amidated peptide containing an enkephalin-like sequence. BmK-YA is encoded by a precursor
Yan Zhang +5 more
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Peripheral sensitization increases opioid receptor expression and activation by crotalphine in rats.
Inflammation enhances the peripheral analgesic efficacy of opioid drugs, but the mechanisms involved in this phenomenon have not been fully elucidated. Crotalphine (CRP), a peptide that was first isolated from South American rattlesnake C.d.
Vanessa Olzon Zambelli +6 more
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The opioid receptor: emergence through millennia of pharmaceutical sciences
Throughout history humanity has searched for an optimal approach to the use of opioids that maximizes analgesia while minimizing side effects. This review reflects upon the conceptualization of the opioid receptor and the critical role that the ...
Carolyn A. Fairbanks +4 more
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Receptors for morphine and opioids
Two points concerning enzymatic systems acting on disposal of morphine are discussed, namely the multiplicity of glucuronyltransferase and the effect of nalorphine on N-demethylation of morphine. Evidences of the presence of at least two different glucuronyltransferases in microsomes of rat liver, kidney and intestine are presented. These evidences are
Sánchez, Emílio +2 more
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Molecular and cellular mechanisms of the age-dependency of opioid analgesia and tolerance
The age-dependency of opioid analgesia and tolerance has been noticed in both clinical observation and laboratory studies. Evidence shows that many molecular and cellular events that play essential roles in opioid analgesia and tolerance are actually age-
Zhao Jing +4 more
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Delta-opioid receptor endocytosis in spinal cord after dermenkephalin activation
Background The delta(δ)-opioid receptors belong to the G protein-coupled receptors and in vitro studies have shown that δ-opioid receptors undergo an internalization process in response to agonist stimulation.
Gastard Myriam
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Targeting peripheral opioid receptors to promote analgesic and anti-inflammatory actions
Mechanisms of endogenous pain control are significant. Increasing studies have clearly produced evidence for the clinical usefulness of opioids in peripheral analgesia.
Katerina eIwaszkiewicz +2 more
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Opioid and cannabinoid receptors
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.
T, Reisine, M J, Brownstein
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