Results 211 to 220 of about 416,668 (254)
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Alcohol health and research world, 2005
Opioid peptides produced in the body act as neuromodulators that modify the actions of other neurotransmitters in the central nervous system. By altering the electrical properties of their target neurons, thereby making these neurons more difficult to excite, opioid peptides can influence the release of various neurotransmitters.
Daniel Daniel Tomé +2 more
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Opioid peptides produced in the body act as neuromodulators that modify the actions of other neurotransmitters in the central nervous system. By altering the electrical properties of their target neurons, thereby making these neurons more difficult to excite, opioid peptides can influence the release of various neurotransmitters.
Daniel Daniel Tomé +2 more
openaire +3 more sources
Opioid receptors and endogenous opioid peptides
Medicinal Research Reviews, 1991The field to be reviewed is now 16 years old and is based on knowledge dating back centuries. It is therefore evident that an exhaustive review is impossible. The author plans to discuss areas likely to be of interest to the readers of this journal.
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Biosynthesis of Opioid Peptides
1990The endogenous opioid peptides all contain the enkephalin sequence Tyr-Gly-Gly-Phe-Met and Tyr-Gly-Gly-Phe-Leu at their aminoterminus. Three distinct families of these peptides (endorphins, enkephalins and dynorphins) are present in different neuronal pathways within the central nervous system. Molecular genetics have shown that these three families of
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1988
The discovery of endogenous opioids has begun an intricate saga involving multiple ligands and multiple receptors that form an extensive neuronal network in both the central and peripheral nervous systems. This intricacy is reflected in the complex pharmacology and diverse physiological effects of opioids in mammals.
Christopher J. Evans +2 more
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The discovery of endogenous opioids has begun an intricate saga involving multiple ligands and multiple receptors that form an extensive neuronal network in both the central and peripheral nervous systems. This intricacy is reflected in the complex pharmacology and diverse physiological effects of opioids in mammals.
Christopher J. Evans +2 more
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Expression of Opioid Peptides in Tumors
New England Journal of Medicine, 1987We looked for opioid peptides and their precursors in 108 tumors of both neuroendocrine and nonneuroendocrine origin, using a monoclonal "pan-opioid" antibody, 3-E7, which recognizes the tetrapeptide Tyr-Gly-Gly-Phe (the sequence responsible for pharmacologic activity in all known opioid peptides), in conjunction with polyclonal antibodies directed ...
D G, Bostwick +5 more
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Biosynthesis and distribution of opioid peptides
Journal of Endocrinological Investigation, 1983Group III opioid peptides are derived from proenkephalin B. The processing of this precursor peptide is still only partly understood and we still do not know how many final products come from proenkephalin B and whether Leu-enkephalin is produced from Group III peptides.
H, Imura +10 more
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Pigment Cell Research, 1996
Opioid peptides and other Tyr‐NH2‐terminal peptides are substrates in vitro for mushroom and sepia tyrosinase, giving rise to synthetic melanins retaining the peptide moiety (opiomelanins). The melanopeptides are characterized by a total solubility in hydrophylic solvents at neutral and basic pH. Opioid peptides (enkephalins, endorphins, and esorphins),
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Opioid peptides and other Tyr‐NH2‐terminal peptides are substrates in vitro for mushroom and sepia tyrosinase, giving rise to synthetic melanins retaining the peptide moiety (opiomelanins). The melanopeptides are characterized by a total solubility in hydrophylic solvents at neutral and basic pH. Opioid peptides (enkephalins, endorphins, and esorphins),
openaire +2 more sources