Desheng Li, Yang Liu, Changzhu Li, Zhiwen Zhou, Kangyi Gao, Hairong Ba, Jiming Yang, Genlong Xue, Dechun Yin, Xinbo Zhao, Kewei Shen, Lingmin Zhang, Jialiang Li, Chenhong Li, Jiahui Song, Lexin Zhao, Yao Pei, Lina Xuan, Yang Zhang, Yanjie Lu, Zhi-Ren Zhang, Baofeng Yang, Yue Li, Zhenwei Pan
BACKGROUND: G protein-coupled receptors play a critical role in atrial fibrillation (AF). Spexin is a novel ligand of galanin receptors (GALRs). In this study, we investigated the regulation of spexin and GALRs on AF and the underlying mechanisms. METHODS: Global spexin knockout (SPX-KO) and cardiomyocyte-specific GALRs knockout (GALR-cKO) mice underwent burst pacing electrical stimulation. Optical mapping was used to determine atrial conduction velocity and action potential duration...
May 10, 2024: Circulation