Irx5 and transient outward K+ currents contribute to transmural contractile heterogeneities in the mouse ventricle
Autor: | Kyoung-Han Kim, Yena Oh, Jie Liu, Saif Dababneh, Ying Xia, Ri Youn Kim, Dae-Kyum Kim, Kiwon Ban, Mansoor Husain, Chi-Chung Hui, Peter H. Backx |
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Rok vydání: | 2022 |
Předmět: | |
Zdroj: | American Journal of Physiology-Heart and Circulatory Physiology. 322:H725-H741 |
ISSN: | 1522-1539 0363-6135 |
Popis: | Irx5 is a vital transcription factor that establishes the transmural heterogeneity of ventricular myocyte contractility, thereby ensuring proper contractile function in the healthy heart. Regional differences in excitation-contraction coupling in the ventricular myocardium are primarily mediated through the inverse relationship between Irx5 and the fast transient outward K+ current ( Ito,f) across the ventricular wall. |
Databáze: | OpenAIRE |
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