Kazan (Volga region) Federal University, KFU
KAZAN
FEDERAL UNIVERSITY
 
PARTICIPATION OF ALPHA2-ADRENORECEPTORS IN THE REGULATION OF BIOELECTRICAL PARAMETERS OF NEWBORN RAT ATRIAL CARDIOMYOCYTES
Form of presentationArticles in Russian journals and collections
Year of publication2023
Языкрусский
  • Zefirov Timur Lvovich, author
  • Ziyatdinova Nafisa Ilgizovna, author
  • Iskakov Nikita Georgievich, author
  • Zefirov Andrey Lvovich, author
  • Leonova Alina Maratovna, postgraduate kfu
  • Bibliographic description in the original language Galieva A.M. Participation of alpha2-adrenoreceptors in the regulation of bioelectrical parameters of newborn rat atrial cardiomyocytes /A.M. Galieva, N.I. Ziyatdinova, A.L. Zefrov ,N.G. Iskakov, T.L. Zefrov // Biophysical Reviews. - 2023. - Vol. 15. - p. 1515-1516.
    Annotation Adrenergic receptors, also called adrenoceptors, are proteins composed of 400 to 600 aminoacids, with seven membrane-spanning domains, and belong to the superfamily of G protein-coupled receptors (GPCR). They are membrane receptors that activate G proteins following the binding of a ligand, thus causing a change in the cell membrane permeability to one or more ions and/or activating an enzyme attached to the receptor. Gs and Gi proteins activate and inhibit the enzyme adenylylcyclase respectively, while Gq proteins activate phospholipase C. According to a number of authors, in rat ventricular and guinea pig and human atrial myocardium, activation of alpha2-adrenoreceptors leads to Gi-protein activation, which decreases adenylate cyclase activity, cAMP level, and thus protein kinase A activity, which eventually blocks norepinephrine exocytosis. Furthermore, it is not excluded that the Gq protein-protein kinase C pathway is also involved in this process. it is believed that alpha2-adrenoceptor subtypes (a-, c-, and c-) are associated with Gi protein, i.e., they implement a single signaling system.
    Keywords alpha2-adrenoreceptors, bioelectrical parameters, newborn rat, atrial cardiomyocytes
    The name of the journal Biophysical Reviews
    URL https://link.springer.com/article/10.1007/s12551-023-01150-w
    Please use this ID to quote from or refer to the card https://repository.kpfu.ru/eng/?p_id=290515&p_lang=2
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