Results 121 to 130 of about 2,188,149 (193)

The Senokine Gas6 Promotes Aortic Valve Calcification Through CaMKII–DRP1–Mediated Terminal Scission of Mitochondrial‐Derived Vesicles

open access: yesAging Cell, Volume 25, Issue 11, November 2026.
In age‐associated calcific aortic valve disease (CAVD), human valve tissues and calcifying human valvular interstitial cells (hVICs) exhibit senescence‐associated features, while calcifying hVICs hypersecrete mitochondrial‐derived vesicles (MDVs). Donut‐shaped mitochondria serve as physical platforms for MDV budding, whereas Gas6 promotes Ca2+–CaMKII ...
Yaoyu Zhang   +17 more
wiley   +1 more source

Doppler echocardiography can provide a comprehensive assessment of right ventricular afterload

open access: yes, 2009
BACKGROUND: The purpose of this study was to evaluate novel Doppler echocardiographic methods for a comprehensive assessment of right ventricular afterload, including pulmonary artery (PA) mean pressure (PAMP) and the PA pressure waveform.
Selimovic, Nedim   +11 more
core   +1 more source

Agreement between cardiac cycle time intervals and myocardial velocities measured by automated analysis of color tissue Doppler cine loops and by manual tracing of spectral pulsed‐wave tissue Doppler waveforms of sheep fetal heart under normal and pathological conditions: An experimental study

open access: yesActa Obstetricia et Gynecologica Scandinavica, Volume 105, Issue 11, Page 2205-2220, November 2026.
Automated cTDI in sheep fetuses provided reproducible measurements of myocardial velocities and heart rate that align well with manual pulsed‐wave TDI. For cardiac cycle duration metrics, the two modalities are not interchangeable. These findings support that automated cTDI is well suited for longitudinal assessment under both physiological and ...
Juulia Lantto   +6 more
wiley   +1 more source

DBT Modulates Copper‐Dependent Cuproptosis‐Related Injury in Experimental Alcoholic Cardiomyopathy

open access: yesJournal of Cellular and Molecular Medicine, Volume 30, Issue 21, November 2026.
ABSTRACT Alcoholic cardiomyopathy (ACM) is a severe cardiovascular complication of chronic alcohol consumption, but its underlying mechanisms remain incompletely understood. Cuproptosis is a recently identified copper‐dependent form of regulated cell death; however, its role in ACM remains unclear.
Zhihao Pan   +3 more
wiley   +1 more source

Evaluation of Early Alterations in Transmitral Diastolic Flow and Tissue Doppler Findings of the Septal and Lattral Segments of Left Ventricles in Early Period after Coronary Angioplasty

open access: yesمجله دانشکده پزشکی اصفهان, 2011
Background: We aimed to evaluate subepicardial and subendocardial left ventricular (LV) functions in patients with single coronary artery lesion at early stage after percutaneous coronary intervention (PCI).
Hasan Shemirani   +2 more
doaj  

Left ventricular functions in patients with cardiac syndrome X: a tissue Doppler study

open access: yes, 2009
Objective:The aim of the study was to compare diagnostic accuracy of tissue Doppler imaging (TDI) and conventional Doppler echocardiography in diagnosis of left ventricular diastolic dysfunction in patients with cardiac syndrome ...
Yazici, Hueseyin Ugur   +7 more
core   +1 more source

Feasibility and reproducibility of off-line tissue Doppler measurement of regional myocardial function during dobutamine stress echocardiography

open access: yes, 2003
AIMS: Off-line post-processing of colour tissue Doppler from digital loops may allow objective quantification of dobutamine stress echocardiography. We assessed the reproducibility of off-line measurements of regional myocardial velocities.
Fraser, A G   +11 more
core   +1 more source

Cord blood cardiac markers and tissue doppler echocardiography findings in infants of diabetic mothers. [PDF]

open access: yesItal J Pediatr
Taşkın SN   +10 more
europepmc   +1 more source

Home - About - Disclaimer - Privacy