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
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