نتایج جستجو برای: heart contractility

تعداد نتایج: 396124  

Journal: :American journal of physiology. Heart and circulatory physiology 2010
Mingxin Tang Xiaoying Zhang Yingxin Li Yinzheng Guan Xiaojie Ai Christopher Szeto Hiroyuki Nakayama Hongyu Zhang Shuping Ge Jeffery D Molkentin Steven R Houser Xiongwen Chen

Cardiac remodeling during heart failure development induces a significant increase in the activity of the L-type Ca(2+) channel (Cav1.2). However, the effects of enhanced Cav1.2 activity on myocyte excitation-contraction (E-C) coupling, cardiac contractility, and its regulation by the beta-adrenergic system are not clear. To recapitulate the increased Cav1.2 activity, a double transgenic (DTG) ...

Journal: :The Japanese journal of physiology 2000
S Suzuki K F Kusano Y Goto

It is unclear whether preceding repetitive brief ischemia causes any improvement in the energy efficiency of intracellular calcium cycling or crossbridge cycling that may lead to cardioprotection after subsequent sustained ischemia/reperfusion, a phenomenon called ischemic preconditioning. To address this issue, left ventricular (LV) contractility (E(max)) and the relation between myocardial ox...

2015
Maria Kurian

Digitalis is a genus of about 20 species of herbaceous perennials, shrubsand biennials commonly called foxgloves. The term digitalis is also used for drug preparations that contain cardiac glycosides, particularly the one called Digoxin, extracted from various plants of this genus. Cardiac glycosides cause arteriolar and venous constriction in a variety of mammalian species including human bein...

Journal: :Journal of Cardiothoracic Surgery 2021

Abstract Background There are a lot of reports the renal failure and heart due to coarctation aorta. However, there no case in which revascularization dramatically improved left ventricular function patients with progressive decline function. Herein, we present rare was by surgical treatment for dysfunction atypical Case presentation A 58-year-old man underwent axillary artery-bilateral femoral...

2016
Joshua A. Stern Svetlana Markova Yu Ueda Jae B. Kim Peter J. Pascoe Marc J. Evanchik Eric M. Green Samantha P. Harris

Hypertrophic cardiomyopathy (HCM) is an inherited disease of the heart muscle characterized by otherwise unexplained thickening of the left ventricle. Left ventricular outflow tract (LVOT) obstruction is present in approximately two-thirds of patients and substantially increases the risk of disease complications. Invasive treatment with septal myectomy or alcohol septal ablation can improve sym...

Journal: :Cardiovascular research 2012
Kar Lai Poon Kar Tong Tan Yang Ye Wei Chee Peng Ng Alan Colman Vladimir Korzh Xiu Qin Xu

AIMS The factors responsible for cardiomyopathy are not fully understood. Our studies of the transcriptome of human embryonic stem cell-derived cardiomyocytes identified novel genes up-regulated during cardiac differentiation, including RBM24. We therefore studied how its deficiency affected heart development. METHODS AND RESULTS The expression of Rbm24 was detected in mouse cardiomyocytes an...

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