Results 151 to 160 of about 55,247 (173)
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Opioid Receptors and their Ligands
Current Topics in Medicinal Chemistry, 2004This review gives a historical perspective, summarizing approximately 25 years of research on opioids. The "typical" opioid peptides produced in the brain, "atypical" opioids encrypted in milk protein or hemoglobin sequences, and extremely potent and selective opioids of amphibian origin are described.
Tomasz Janecki +2 more
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ChemInform Abstract: Opioid‐Agonists and ‐Antagonists, Opioid‐Receptors
ChemInform, 1997AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
T. Siener +4 more
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Opioid receptors and opioid pharmacodynamics
2005Abstract Opioids have a long and rich pharmacology. They are widely used throughout medicine and have been invaluable. However, they come with problems, including side effects such as constipation, respiratory depression and sedation, as well as the potential of abuse.
Mellar P Davis, Gavril W Pasternak
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Regulatory Peptides, 1995
Prior work in our laboratory has identified putative subtypes of delta (delta cx-1, delta cx-2, delta ncx-1, delta ncx-2) and kappa 2 (kappa 2a and kappa 2b) receptors. Previous studies showed that chronic (three day) i.c.v. administration of antisense oligodeoxynucleotide to the cloned delta opioid receptor selectively decreased [3H][D-Ala2,D-Leu5 ...
Heng Xu +9 more
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Prior work in our laboratory has identified putative subtypes of delta (delta cx-1, delta cx-2, delta ncx-1, delta ncx-2) and kappa 2 (kappa 2a and kappa 2b) receptors. Previous studies showed that chronic (three day) i.c.v. administration of antisense oligodeoxynucleotide to the cloned delta opioid receptor selectively decreased [3H][D-Ala2,D-Leu5 ...
Heng Xu +9 more
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NeuroMolecular Medicine, 2004
Opioid receptors are regulated by multiple mechanisms, which are believed to contribute to the physiological plasticity of the endogenous opioid system in response to natural neuropeptides, as well as clinically relevant opiate drugs. Considerable progress has been made in elucidating molecular and cellular mechanisms of opioid receptor regulation. The
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Opioid receptors are regulated by multiple mechanisms, which are believed to contribute to the physiological plasticity of the endogenous opioid system in response to natural neuropeptides, as well as clinically relevant opiate drugs. Considerable progress has been made in elucidating molecular and cellular mechanisms of opioid receptor regulation. The
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Regulations of opioid dependence by opioid receptor types
Pharmacology & Therapeutics, 2001Three major types of opioid receptors, designated mu, delta, and kappa, are widely expressed in the CNS. Development of selective receptor ligands and recent cloning of each receptor have contributed greatly to our increasing knowledge of the neuropharmacological profile of each opioid receptor type.
Minoru Narita +2 more
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Current Protocols in Pharmacology, 1998
AbstractOpioid receptors mediate the pharmacologic actions of morphine‐like analgesics, a class of drugs that are important clinical agents which are also widely abused socially as a result of their euphorogenic and addictive properties. Cloning of the opioid receptors has confirmed the original postulate that there are only three classes of opioid ...
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AbstractOpioid receptors mediate the pharmacologic actions of morphine‐like analgesics, a class of drugs that are important clinical agents which are also widely abused socially as a result of their euphorogenic and addictive properties. Cloning of the opioid receptors has confirmed the original postulate that there are only three classes of opioid ...
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Pharmaceutisch Weekblad Scientific Edition, 1990
A receptor site is considered to be a transducing factor for effect of the natural ligand. Endorphins and the drugs that mimic their effects (the opiates) are important for analgesia, and consequently the receptor sites involved in actions of opioid drugs are to be considered as relevant to the transmission of pain.
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A receptor site is considered to be a transducing factor for effect of the natural ligand. Endorphins and the drugs that mimic their effects (the opiates) are important for analgesia, and consequently the receptor sites involved in actions of opioid drugs are to be considered as relevant to the transmission of pain.
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Delta Opioid Receptors and Cardioprotection
2017The opioid receptor family, with associated endogenous ligands, has numerous roles throughout the body. Moreover, the delta opioid receptor (DORs) has various integrated roles within the physiological systems, including the cardiovascular system.
Louise E. See Hoe +4 more
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1984
Publisher Summary This chapter discusses the heterogeneity and characteristics of opioid receptors. In homogenates of guinea pig brain, [Leu5]enkephalin is more potent in displacing the binding of [3H] [Leu5]enkaphalin than of [3H]naloxone, whereas the converse holds for morphine; in contrast, β-endorphin is equipotent at displacing both tritiated ...
S.J. Paterson +2 more
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Publisher Summary This chapter discusses the heterogeneity and characteristics of opioid receptors. In homogenates of guinea pig brain, [Leu5]enkephalin is more potent in displacing the binding of [3H] [Leu5]enkaphalin than of [3H]naloxone, whereas the converse holds for morphine; in contrast, β-endorphin is equipotent at displacing both tritiated ...
S.J. Paterson +2 more
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