title: [Muscarinic cholinoreceptors of brain synaptic membranes from animals of various ages].
abstract: In old rats in contrast to young and mature ones the treatment of synaptic membranes with SH-reagent N-ethylmaleimide, cholinergic agonist carbamylcholine or both of them decreases the specific binding of labeled muscarinic antagonist 3H-quinuclidinylbenzylate. The age related change of receptor conformation with exposure of thiol groups responsible for antagonist binding is suggested.
mesh_terms: D000375:Aging; D000818:Animals; D001921:Brain / Q000254:growth & development* / Q000378:metabolism; D005033:Ethylmaleimide / Q000494:pharmacology; D007700:Kinetics; D011813:Quinuclidinyl Benzilate / Q000378:metabolism; D051381:Rats; D011976:Receptors, Muscarinic / Q000378:metabolism*; D013570:Synaptic Membranes / Q000378:metabolism*
chemical_list: D011976:Receptors, Muscarinic; D011813:Quinuclidinyl Benzilate; D005033:Ethylmaleimide
vernacular_title: Issledovanie muskarinovykh kholinoretseptorov sinapticheskikh membran mozga zhivotnykh raznogo vozrasta.