Results 271 to 280 of about 52,496 (299)

Long-acting muscarinic antagonists

Expert Review of Clinical Pharmacology, 2015
Chronic obstructive pulmonary disease (COPD) is a major cause of death and disability worldwide. Inhaled bronchodilators are the mainstay of COPD pharmacological treatment. Long-acting muscarinic antagonists (LAMAs) are a major class of inhaled bronchodilators.
openaire   +2 more sources

Role of muscarinic antagonists in asthma therapy

Expert Review of Respiratory Medicine, 2017
Higher parasympathetic tone has been reported in asthmatics. In general, cholinergic contractile tone is increased by airway inflammation associated with asthma. Nevertheless, the role of muscarinic antagonists for the treatment of asthma has not yet been clearly defined.
CAZZOLA, MARIO, Ora, J, ROGLIANI, PAOLA, Matera, Mg   +3 more
openaire   +5 more sources

Selective muscarinic receptor antagonists for airway diseases

Current Opinion in Pharmacology, 2001
Airway tone and airway hyperreactivity are mediated by the parasympathetic nerves that release acetylcholine onto muscarinic receptors (M1-M5). Stimulation of M1 and M3 muscarinic receptors causes bronchoconstriction. The M1 muscarinic receptor is excitatory, and facilitates neuronal transmission at the parasympathetic ganglion.
A M, Lee, D B, Jacoby, A D, Fryer
openaire   +2 more sources

Muscarinic Antagonists for Myopia Control

1998
Previous nonsurgical treatment of myopia using optical and pharmaceutical agents has not allowed an unequivocal consensus. Such studies must be based on the natural history of myopia progression, accurate biometric measurements, and randomized clinical trials.
Sek-Jin Chew, Sek-Tien Hoh, Jenny Tan, Hong-Ming Cheng   +3 more
openaire   +1 more source

The conformations of muscarinic antagonists.

British journal of pharmacology, 1970
P, Pauling, T J, Petcher
openaire   +3 more sources

Allosteric antagonists of the muscarinic acetylcholine receptor

Biochemical Pharmacology, 1991
For the most part, the interaction of these selective antagonists with muscarinic receptors has been interpreted in the context of simple competitive bimolecular reaction which obeys the law of mass action. In fact, the use of selective antagonists as a pharmacological tool to identify receptor types and subtypes is based on this premise.
N H, Lee, E E, el-Fakahany
openaire   +2 more sources

Aprophit: An irreversible antagonist for muscarinic receptors

Biochemical Pharmacology, 1990
The development of selective irreversible ligands has proven to be an invaluable technique for the isolation, purification and characterization of many receptor proteins. An isothiocyanato-derivative of the muscarinic antagonist aprophen was synthesized and evaluated as a potential irreversible ligand for muscarinic receptors.
A H, Newman, J, Covington, M, Oleshansky, B W, Jackson, B A, Weissman, H, Leader, P K, Chiang   +6 more
openaire   +2 more sources

Muscarinic autoreceptors are differentially affected by selective muscarinic antagonists in rat hippocampus

Neurochemistry International, 1989
The effects of atropine, pirenzepine and AF-DX 116 on the high K(+)-evoked release of endogenous ACh from rat hippocampal slices were compared. As expected, atropine in concentrations of 10(?5) and 10(?6)M increased the release of acetylcholine, to 128 and 157% of the control value, respectively. While AF-DX 116 was also able to increase the release to
K, Gulya, D, Budai, P, Kása
openaire   +2 more sources

[Antianaphylactic effects of muscarinic antagonists].

Eksperimental'naia i klinicheskaia farmakologiia, 2010
The study was carried out on color guinea pigs, in which anaphylactic shock was induced by sensitizing and challenging doses of normal horse serum (HS). Administration of atropine, ipratropium, or ipratropium in combination with neostigmine led to reduction of sensitizing effect of HS: anaphylactic index was decreased up to (2.2 - 2.4) +/- 0.1 ...
G I, Nezhinskaia, A L, Vladykin, N S, Sapronov   +2 more
openaire   +1 more source

Benzylidene ketal derivatives as M2 muscarinic receptor antagonists

Bioorganic & Medicinal Chemistry Letters, 2000
Benzylidene ketal derivatives were investigated as selective M2 receptor antagonists for the treatment of Alzheimer's disease. Compound 10 was discovered to have subnanomolar M2 receptor affinity and 100-fold selectivity against other muscarinic receptors. Also, 10 demonstrated in vivo efficacy in rodent models of muscarinic activity and cognition.
C D, Boyle, S, Chackalamannil, L Y, Chen, S, Dugar, P, Pushpavanam, W, Billard, H, Binch, G, Crosby, M, Cohen-Williams, V L, Coffin, R A, Duffy, V, Ruperto, J E, Lachowicz   +12 more
openaire   +2 more sources