title: [Interaction of adrenergic and purinergic receptors in the regulation of rat myocardial contractility in postnatal ontogeny].
abstract: β-Adrenergic receptor agonist isoproterenol and purinergic receptor agonist 2-methylthio-ATP have a positive effect on the myocardial contractile force and show different efficiencies depending on the age of animals. The maximum inotropic effect of agonists on the ventricular myocardial contractility was observed in 21-day-old rat pups. The study of a combined effect of isoproterenol and 2-methylthio-ATP showed that an increase in the sympathetic regulatory effects on the heart of 21-day-old animals, against the background of a high functional activity of β-adrenergic receptors and P2X receptors of the heart, a combined administration of the agonists led to a mutually complementing effect of an increase in the myocardial contractility.
authors.forename: T A
authors.initials: TA
authors.lastname: Anikina
authors.forename: A A
authors.initials: AA
authors.lastname: Zverev
authors.forename: F G
authors.initials: FG
authors.lastname: Sitdikov
authors.forename: I N
authors.initials: IN
authors.lastname: Anisimova
mesh_terms: D000255:Adenosine Triphosphate / Q000031:analogs & derivatives / Q000494:pharmacology; D000318:Adrenergic beta-Agonists / Q000494:pharmacology; D000818:Animals; D007545:Isoproterenol / Q000494:pharmacology; D009200:Myocardial Contraction / Q000187:drug effects / Q000502:physiology*; D009206:Myocardium / Q000378:metabolism*; D058913:Purinergic Agonists / Q000494:pharmacology; D051381:Rats; D011941:Receptors, Adrenergic / Q000378:metabolism*; D011983:Receptors, Purinergic / Q000378:metabolism*; D013564:Sympathetic Nervous System / Q000378:metabolism; D013873:Thionucleotides / Q000494:pharmacology
chemical_list: D000318:Adrenergic beta-Agonists; D058913:Purinergic Agonists; D011941:Receptors, Adrenergic; D011983:Receptors, Purinergic; D013873:Thionucleotides; D000255:Adenosine Triphosphate; D007545:Isoproterenol; C008501:2-methylthio-ATP