Results 51 to 60 of about 150,466 (311)

Left ventricular ejection time: its relation to left ventricular systolic function and functional capacity in cardiomyopathic patients

Al-Azhar Assiut Medical Journal
Background and aim Left ventricular ejection time (LVET) was used to evaluate left ventricular function. Transthoracic echocardiogram was done, and parameters of LV systolic function by utilizing tissue Doppler imaging and two-dimensional strain were ...
Eman S. El Shahawy, Asmaa A. Hassan
doaj   +1 more source

Mitochondrial Transplantation Augments the Reparative Capacity of Macrophages Following Myocardial Injury

Advanced Science, EarlyView.
Mitochondrial transplantation induces macrophage polarization toward an anti‐inflammatory M2 phenotype, enhances their reparative capacities, and facilitates mitochondrial transfer to cardiomyocytes, collectively promoting tissue repair and functional recovery post‐myocardial infarction.
Yuning Zhang, Xiaolei Sun, Yawei Jin, Kanghui Chen, Lu Zhang, Xiong Gao, Mohan Li, Ze Yuan, Jianguo Jia, Aijun Sun, Junbo Ge   +10 more
wiley   +1 more source

The relationship between single and two-dimensional indices of left ventricular size using hemodynamic transesophageal echocardiography in trauma and burn patients

Critical Ultrasound Journal, 2017
Background Conventional echocardiographic technique for assessment of volume status and cardiac contractility utilizes left ventricular end-diastolic area (LVEDA) and fractional area of change (FAC), respectively.
Duraid Younan, T. Mark Beasley, David C. Pigott, C. Blayke Gibson, John P. Gullett, Jeffrey Richey, Jean-Francois Pittet, Ahmed Zaky   +7 more
doaj   +1 more source

Dual‐Graded Microstructure Engineering for Flexible Piezoresistive Sensors with High Sensitivity and Broad Linear Range in Physiological Monitoring

Advanced Science, EarlyView.
A flexible piezoresistive pressure sensor with dual‐graded microstructures achieves both high sensitivity (69.8 kPa⁻¹) and a broad linear range up to 300 kPa (R2 = 0.997). Synergizing structural deformation and tunneling conduction, it enables rapid, stable, and accurate detection of subtle physiological signals, offering a scalable and cost‐effective ...
Ningning Bai, Dandan Xu, Zhuang Su, Gangqiang Li, Lilong He, Yanli Chen, Chengxi Guo, Linxuan Zhou, Xianming Qin, Ji Zhang, Daowei Wu, Weidong Wang   +11 more
wiley   +1 more source

RIght VErsus Left Apical transvenous pacing for bradycardia: Results of the RIVELA randomized study

Indian Pacing and Electrophysiology Journal, 2017
Aims: To compare cardiac function when pacing from the right or left ventricular apex in patients with preserved left ventricular systolic function, at 1-year follow-up.
Haran Burri, Hajo Müller, Richard Kobza, Christian Sticherling, Peter Ammann, Heiko Zerlik, Carine Stettler, Catherine Klersy, Frits Prinzen, Angelo Auricchio   +9 more
doaj   +1 more source

Heart rate variability is associated with left ventricular systolic, diastolic function and incident heart failure in the general population

BMC Medicine, 2022
Background HRV has mostly shown associations with systolic dysfunction and more recently, with diastolic dysfunction in Heart failure (HF) patients. But the role of sympathetic nervous system in changes of left ventricular (LV) systolic and diastolic ...
Banafsheh Arshi, Sven Geurts, Martijn J. Tilly, Marten van den Berg, Jan A. Kors, Dimitris Rizopoulos, M. Arfan Ikram, Maryam Kavousi   +7 more
doaj   +1 more source

ALKBH5‐Mediated M6A Demethylation of G3BP1 Attenuates Ferroptosis Via Cytoplasmic Retention of YBX1/p53 in Diabetic Myocardial Ischemia‐Reperfusion Injury

Advanced Science, EarlyView.
ALKBH5 promoted G3BP1 expression via m⁶A methylation at sites 142/173. G3BP1 interacts with YBX1 and p53, reducing their nuclear translocation and decreasing p53‐mediated SLC7A11 repression. This inhibites cardiomyocyte ferroptosis and mitigates myocardial damage during diabetic ischemia‐reperfusion injury.
Wenyuan Li, Wei Li, Yan Leng, Heng Xu, Zhongyuan Xia, Yao Wang   +5 more
wiley   +1 more source

LncRNA Foxo6os as a Novel “ Scaffold” Mediates MYBPC3 in Combating Pathological Cardiac Hypertrophy and Heart Failure

Advanced Science, EarlyView.
Schematic overview showing that forkhead box O6, opposite strand (Foxo6os) acts as a “scaffold”, directly binding myosin‐binding protein‐C (MYBPC3) and recruiting protein kinase C (PKC‐α) to mediate site‐specific phosphorylation of MYBPC3. This post‐translational modification supports cardiac contraction by regulating L‐type Ca2+ channels, especially ...
Jie Sheng, Qin Lin, Yizhuo Sun, Yilei Meng, Sangyu Hu, Huaming Cao, Fang Lin, Yuping Zhu, Luying Peng, Li Li   +9 more
wiley   +1 more source

Atrial Fibroblasts‐Derived Extracellular Vesicles Exacerbate Atrial Arrhythmogenesis

Advanced Science, EarlyView.
Exosome miR‐224‐5p derived from angiotensin II‐treated atrial fibroblasts creates a substrate for AF by promoting atrial electrical remodeling. Increased exosome miR‐224‐5p enhances AF susceptibility by inhibiting CACNA1c expression and decreasing ICa current of atrial cardiomyocytes.
Yue Yuan, Xinbo Zhao, Xuejie Han, Yukai Cao, Xuexin Jin, Ling Shi, Xin Bi, Desheng Li, Yun Zhang, Wenbo Ma, Jiahui Song, Zhenwei Pan, Zhiren Zhang, Yue Li   +13 more
wiley   +1 more source

PECULIAR FEATURES IN STRUCTURAL AND FUNCTIONAL HEART VALUES IN PERSONS WITH VARIOUS LEVELS OF BLOOD PRESSURE

Российский кардиологический журнал, 2002
113 healthy subjects with normal blood pressure and 26 patients with essential hypertension (BP 140-159/90-99 mm Hg) were inspected by echocardiography. All subjects were divided into 5 groups according to the blood pressure (BP) level.
A. V. Tuyev, Y. B. Hovayeva
doaj