Discrete Stretch Eliminates Electrophysiological Dose-Dependent Effects of Nitric Oxide Donor SNAP in Rat Atrium
- Authors: Shim A.L.1, Mitrokhin V.M.1, Kazanski V.E.1, Mladenov M.I.1, Kamkin A.G.1
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Affiliations:
- Department of Physiology, N. I. Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation
- Issue: Vol 163, No 6 (2017)
- Pages: 705-709
- Section: Article
- URL: https://journals.rcsi.science/0007-4888/article/view/239211
- DOI: https://doi.org/10.1007/s10517-017-3885-9
- ID: 239211
Cite item
Abstract
Depolarization of cardiomyocytes triggered by stretch and activation of mechanically gated ion channels can lead to serious arrhythmias. However, stretch-induced signaling activating these channels remain little studied. This study tested the hypothesis on implication of NO in shaping the electrical abnormalities provoked by stretch of the right atrial myocardium in rat via a mechanism engaging a signaling cascade, where NO plays a significant role. This approach showed that in isolated right atrial preparation, NO donor SNAP induces the electrical abnormalities similar to those provoked by stretch, and the latter results from activation of NO synthase.
About the authors
A. L. Shim
Department of Physiology, N. I. Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation
Email: vmitrokhin@gmail.com
Russian Federation, Moscow
V. M. Mitrokhin
Department of Physiology, N. I. Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation
Author for correspondence.
Email: vmitrokhin@gmail.com
Russian Federation, Moscow
V. E. Kazanski
Department of Physiology, N. I. Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation
Email: vmitrokhin@gmail.com
Russian Federation, Moscow
M. I. Mladenov
Department of Physiology, N. I. Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation
Email: vmitrokhin@gmail.com
Russian Federation, Moscow
A. G. Kamkin
Department of Physiology, N. I. Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation
Email: vmitrokhin@gmail.com
Russian Federation, Moscow
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