Results 11 to 20 of about 72,155 (213)

Pharmacological Profiles of Oligomerized μ-Opioid Receptors [PDF]

Cells, 2013
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
doaj   +2 more sources

Opioids and Their Receptors [PDF]

, 2020
The interest in opioids such as morphine, the prototypical opioid ligand, has been maintained through the years. The identification of endogenous opioids and their receptors (mu, delta, kappa, and nociceptin), molecular cloning, and the elucidation of ...

core   +1 more source

GTPγS-Autoradiography for Studies of Opioid Receptor Functionality [PDF]

, 2020
The opioid receptors have been an interesting target for the drug industry for decades. These receptors were pharmacologically characterized in the 1970s and several drugs and peptides have emerged over the years.
Alfhild Grönbladh, Grönbladh, Alfhild,, Hallberg, Mathias,, Mathias Hallberg   +3 more
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Mu Opioid Receptor Heterodimers Emerge as Novel Therapeutic Targets: Recent Progress and Future Perspective

Frontiers 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, Jiang-Tao Zhang, Lihua Hang, Tong Liu, Tong Liu   +4 more
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Co-Evolution of Opioid and Adrenergic Ligands and Receptors: Shared, Complementary Modules Explain Evolution of Functional Interactions and Suggest Novel Engineering Possibilities

Life, 2021
Cross-talk between opioid and adrenergic receptors is well-characterized and involves second messenger systems, the formation of receptor heterodimers, and the presence of extracellular allosteric binding regions for the complementary ligand; however ...
Robert Root-Bernstein, Beth Churchill
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Opioid mediated activity and expression of mu and delta opioid receptors in isolated human term non-laboring myometrium [PDF]

, 2013
The existence of opioid receptors in mammalian myometrial tissue is now widely accepted. Previously enkephalin degrading enzymes have been shown to be elevated in pregnant rat uterus and a met-enkephalin analogue has been shown to alter spontaneous ...
McMorrow, Jason P., Carey, Michael F., Campion, Deirdre P., O\u27Connor, J. J., Fanning, Rebecca A., O'Connor, J. J.   +5 more
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The Peptide PnPP-19, a Spider Toxin Derivative, Activates μ-Opioid Receptors and Modulates Calcium Channels

Toxins, 2018
The synthetic peptide PnPP-19 comprehends 19 amino acid residues and it represents part of the primary structure of the toxin δ-CNTX-Pn1c (PnTx2-6), isolated from the venom of the spider Phoneutria nigriventer.
Ana C. N. Freitas, Steve Peigneur, Flávio H. P. Macedo, José E. Menezes-Filho, Paul Millns, Liciane F. Medeiros, Maria A. Arruda, Jader Cruz, Nicholas D. Holliday, Jan Tytgat, Gareth Hathway, Maria E. de Lima   +11 more
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Ligand-Specific Regulation of the Endogenous Mu-Opioid Receptor by Chronic Treatment with Mu-Opioid Peptide Agonist [PDF]

, 2013
Since the discovery of the endomorphins (EM), the postulated endogenous peptide agonists of the mu-opioid receptors, several analogues have been synthesized to improve their binding and pharmacological profiles.
Murányi Marianna, Szűcs, Mária, Dochnal Roberta, Kicsi Emese, Kicsi, Emese Gabriella, Fábián Gabriella, Szabó Gyula, Szabó, Gyula, Zentai, András, Bozó, Beáta, Fábián, Gabriella, Birkás Erika, Cinar Resat, Bozó Bea, Birkás, Erika, Kékesi Orsolya Sára, Cinar, Resat, Tóth, Géza, Mácsai Mónika, Mácsai, Mónika, Kékesi, Orsolya, Dochnal, Roberta Beatrix, Tóth Géza, Szűcs Mária, Murányi, Marianna, Zentai András   +25 more
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Inhibition of activity of GABA transporter GAT1 by δ-opioid receptor [PDF]

, 2012
Analgesia is a well-documented effect of acupuncture. A critical role in pain sensation plays the nervous system, including the GABAergic system and opioid receptor (OR) activation.
Fucke, Thomas, Schwarz, Wolfgang, Xu, Nanjie, Pu, Lu, Pei, Gang, Gu, Quanbao, Xia, Peng, Ren, Shuanglai   +7 more
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Expression and Localization of Opioid Receptors in Male Germ Cells and the Implication for Mouse Spermatogenesis. [PDF]

PLoS ONE, 2016
The presence of endogenous opioid peptides in different testicular cell types has been extensively characterized and provides evidence for the participation of the opioid system in the regulation of testicular function.
Haizea Estomba, Iraia Muñoa-Hoyos, Marta Gianzo, Itziar Urizar-Arenaza, Luis Casis, Jon Irazusta, Nerea Subirán   +6 more
doaj   +1 more source