Results 311 to 320 of about 2,360,825 (374)
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Desensitization of Muscarinic Receptors
Receptors and Channels, 2004When Chinese hamster ovary cells transfected with the gene for M(3)-muscarinic receptors were stimulated with carbachol continuously for 30 min, the response at the end of the stimulation period was about 20% of the early response (2-3 min after the start of the stimulation).
J Van Emmelo +3 more
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Calcium and the muscarinic receptor
General Pharmacology: The Vascular System, 1976Pharmacological receptors may be viewed as composed of two linked functions, a recognition site through which the specificity and selectivity of ligand action is expressed and an amplification or catalytic site which translates the ligand-recognition site interaction into response.
David J. Triggle, M.K. Ticku
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Muscarinic Receptors in Schizophrenia
Current Molecular Medicine, 2003An increasing body of evidence suggests that the muscarinic receptors may present a potential therapeutic target for the treatment of schizophrenia. This argument is supported by studies using postmortem CNS tissue and a neuroimaging study that have shown there are regionally specific decreases in selective muscarinic receptors in the CNS of subjects ...
Elizabeth Scarr +2 more
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Muscarinic Acetylcholine Receptors
Current Pharmaceutical Design, 2006Muscarinic acetylcholine receptors mediate diverse physiological functions. At present, five receptor subtypes (M(1) - M(5)) have been identified. The odd-numbered receptors (M(1), M(3), and M(5)) are preferentially coupled to G(q/11) and activate phospholipase C, which initiates the phosphatidylinositol trisphosphate cascade leading to intracellular ...
Masaru Ishii, Yoshihisa Kurachi
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The Muscarinic Receptors [PDF]
, 1984 Muscarinic receptors exist in both peripheral tissues and the central nervous system. Their activation is responsible for all the effects elicited by parasympathetic stimulation in the peripheral organs and modulate ganglionic transmission (Wallis, 1979).
Giancarlo Pepeu, Ileana Marconcini Pepeu
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Muscarinic Receptor Antagonists
2016Parasympathetic activity is increased in patients with chronic obstructive pulmonary disease (COPD) and asthma and appears to be the major reversible component of airway obstruction. Therefore, treatment with muscarinic receptor antagonists is an effective bronchodilator therapy in COPD and also in asthmatic patients.
Maria Gabriella Matera, Mario Cazzola
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Acta Pharmacologica et Toxicologica, 1986
Abstract:The muscarinic cholinergic receptors in the urinary bladders of man, guinea pig, rat and rabbit were studied by means of a receptor binding technique, with L‐quinuclidinyl [phenyl4‐3H]benzilate, (‐)3H‐QNB, as radioligand. The potential role of the receptors in the supersensitivity of the rat bladder to muscarinic agonists, following ...
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Abstract:The muscarinic cholinergic receptors in the urinary bladders of man, guinea pig, rat and rabbit were studied by means of a receptor binding technique, with L‐quinuclidinyl [phenyl4‐3H]benzilate, (‐)3H‐QNB, as radioligand. The potential role of the receptors in the supersensitivity of the rat bladder to muscarinic agonists, following ...
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Current Protocols in Pharmacology, 1999
AbstractIn the central and peripheral nervous systems, the actions of acetylcholine are mediated by families of ligand gated ion channels and metabotropic receptors. The latter family is composed of muscarinic receptors, since they are selectively activated by muscarine and antagonized by atropine. Five muscarinic receptor subtypes have been identified
Richard M. Eglen +3 more
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AbstractIn the central and peripheral nervous systems, the actions of acetylcholine are mediated by families of ligand gated ion channels and metabotropic receptors. The latter family is composed of muscarinic receptors, since they are selectively activated by muscarine and antagonized by atropine. Five muscarinic receptor subtypes have been identified
Richard M. Eglen +3 more
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Muscarinic receptors in rat uterus
European Journal of Pharmacology, 1994The aim of this study was to characterise the muscarinic receptor present in the uterus of the virgin rat. Homogenate binding studies were undertaken using [3H]quinuclidinyl benzilate as the radioligand and atropine (10 microM) to determine non-specific binding.
Tracey A. Gillman +2 more
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Interaction of Atropine with the Muscarinic Receptor
Nature, 1970WE report here the crystal structures of two muscarinic antagonists of acetylcholine, (−)-(S)-hyoscine hydrobromide1 and (−)-(S)-hyoscyamine hydrobromide (atropine). Correlation of these two structures and that of quinuclidinyl benzilate hydrobromide2 shows marked similarities among the three molecules although they are subjected to very different ...
Trevor J. Petcher, Peter Pauling
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