Results 101 to 110 of about 4,669,181 (269)
Cell cycle arrest of cardiomyocytes in the context of cardiac regeneration
Frontiers in Cardiovascular MedicineThe limited capacity of adult mammalian cardiomyocytes to undergo cell division and proliferation is one of the key factors contributing to heart failure.
Qingling Xu +8 more
doaj +1 more source
Dynamic changes in the ischemic mitral annulus: Implications for ring sizing
Annals of Cardiac Anaesthesia, 2016 Objectives: Contrary to the rest of the mitral annulus, inter-trigonal distance is known to be relatively less dynamic during the cardiac cycle. Therefore, intertrigonal distance is considered a suitable benchmark for annuloplasty ring sizing during ...
Khurram Owais +5 more
doaj +1 more source
Dependence of Brain Intravoxel Incoherent Motion Perfusion Parameters on the Cardiac Cycle
PLoS ONE, 2013 Measurement of microvascular perfusion with Intravoxel Incoherent Motion (IVIM) MRI is gaining interest. Yet, the physiological influences on the IVIM perfusion parameters (“pseudo-diffusion” coefficient D*, perfusion fraction f, and flow related ...
C. Federau +6 more
semanticscholar +1 more source
The cycle of form and function in cardiac valvulogenesis
Aswan Heart Centre Science & Practice Series, 2011 AbstractThe formation and remodeling of the embryonic valves is a complex and dynamic process that occurs within a constantly changing hemodynamic environment. Defects in embryonic and fetal valve remodeling are the leading cause of congenital heart defects, yet very little is known about how fibrous leaflet tissue is created from amorphous gelatinous ...
Stephanie E. Lindsey +1 more
openaire +3 more sources
Pattern of initiation of monomorphic ventricular tachycardia in recorded intracardiac electrograms [PDF]
, 2005 Background: By analyzing stored intracardiac electrograms during spontaneous monomorphic ventricular tachycardia (VT), we examined the patterns of the VT initiation in a group of patients with implantable cardioverter defibrillators (ICDs).
Arya, Arash +2 more
core +2 more sources
Journal of Cardiovascular Magnetic Resonance, 2013 BackgroundThree-directional phase velocity mapping (PVM) is capable of measuring longitudinal, radial and circumferential regional myocardial velocities. Current techniques use Cartesian k-space coverage and navigator-gated high spatial and high temporal
R. Simpson, J. Keegan, D. Firmin
semanticscholar +1 more source
Deletion of HP1γ in cardiac myocytes affects H4K20me3 levels but does not impact cardiac growth
Epigenetics & Chromatin, 2018 Background Heterochromatin, which is formed when tri-methyl lysine 9 of histone H3 (H3K9me3) is bound by heterochromatin 1 proteins (HP1s), plays an important role in differentiation and senescence by silencing cell cycle genes.
Kyohei Oyama +6 more
doaj +1 more source
Electrical Activation and Mechanical Asynchronism in the Cardiac Cycle of the Dog [PDF]
, 1959 Philip Samet +2 more
openalex +1 more source
RUDN Journal of Ecology and Life Safety, 2014 The basic functions of myocard bioelectrical activity in 308 students of 17-20 years of age were studied by means of electrocardiography during the educational process. The research was carried out with medical diagnostic system “Valenta
V N Fedorov
doaj
BioMedical Engineering OnLine, 2012 Background Magnetic resonance imaging (MRI) is an important tool for cardiac research, and it is frequently used for resting cardiac assessments. However, research into non-pharmacological stress cardiac evaluation is limited.
Gusso Silmara +6 more
doaj +1 more source