title: Inotropic influence of macrocyclic polyethers on tracheal smooth muscle.
abstract: Incubated guinea pig tracheal smooth muscle exhibited both positive and negative inotropic responses to a variety of crown ether analogs that ranged in size from 12-crown-4 to 30-crown-10 and included molecules whose lipophilicity was modified by the addition of benzo- and cyclohexo-substituents on the basic molecular framework. The inotropic influence of crown ethers may not only be due to their ionophoretic capabilities but may result from their ability to affect alterations in membrane physiology.
authors.affiliation: Department of Medicine, Medical College of Georgia, Augusta 30912-3135.
authors.forename: R C
authors.initials: RC
authors.lastname: Kolbeck
authors.forename: C
authors.initials: C
authors.lastname: La Neave
authors.forename: A
authors.initials: A
authors.lastname: Aguirre
authors.forename: T M
authors.initials: TM
authors.lastname: Nosek
authors.forename: K H
authors.initials: KH
authors.lastname: Pannell
mesh_terms: D000818:Animals; D004988:Ethers, Cyclic / Q000494:pharmacology*; D006168:Guinea Pigs; D066298:In Vitro Techniques; D008297:Male; D009119:Muscle Contraction / Q000187:drug effects; D009130:Muscle, Smooth / Q000187:drug effects*; D013329:Structure-Activity Relationship; D014132:Trachea / Q000187:drug effects
chemical_list: D004988:Ethers, Cyclic