Results 71 to 80 of about 4,669,181 (269)

Visualizing the Cardiac Cycle: A Useful Tool to Promote Student Understanding

open access: yesJournal of Microbiology & Biology Education, 2011
The cardiac cycle is an important concept presented in human anatomy and physiology courses. At Kingsborough Community College, all Allied Health majors taking Anatomy & Physiology must understand the cardiac cycle to grasp more advanced concepts ...
Ivan Shun Ho
doaj   +1 more source

Epigenetic Reader Bromodomain Containing Protein 2 Facilitates Pathological Cardiac Hypertrophy via Regulating the Expression of Citrate Cycle Genes

open access: yesFrontiers in Pharmacology, 2022
The bromodomain and extra-terminal domain proteins (BETs) family serve as epigenetic “readers”, which recognize the acetylated histones and recruit transcriptional regulator complexes to chromatin, eventually regulating gene transcription.
Zhirong Lin   +6 more
doaj   +1 more source

Mitochondrial Deformation During the Cardiac Mechanical Cycle [PDF]

open access: yesThe Anatomical Record, 2018
ABSTRACTCardiomyocytes both cause and experience continual cyclic deformation. The exact effects of this deformation on the properties of intracellular organelles are not well characterized, although they are likely to be relevant for cardiomyocyte responses to active and passive changes in their mechanical environment.
E. A. Rog‐Zielinska   +3 more
openaire   +4 more sources

INFLUENCE OF CARDIOVASCULAR RISK FACTORS ON AORTIC WALL MOTION AFTER REPAIR OF TYPE A AORTIC DISSECTION: AN ECG-GATED CT STUDY [PDF]

open access: yes, 2012
OBJECTIVES: To evaluate aortic shape changes during cardiac cycle with dynamic computed tomographic angiography at important thoracic aorta anatomic landmarks in patients who previously underwent ascending aorta repair because of type A dissection, and ...
CROCCIA, MARIAGRAZIA
core  

Metabolically exaggerated cardiac reactions to acute psychological stress revisited [PDF]

open access: yes, 2009
The reactivity hypothesis postulates that large magnitude cardiovascular reactions to psychological stress contribute to the development of pathology. A key but little tested assumption is that such reactions are metabolically exaggerated.
Allen   +38 more
core   +1 more source

Pkm2 Regulates Cardiomyocyte Cell Cycle and Promotes Cardiac Regeneration

open access: yesCirculation, 2020
Supplemental Digital Content is available in the text. Background: The adult mammalian heart has limited regenerative capacity, mostly attributable to postnatal cardiomyocyte cell cycle arrest.
Ajit Magadum   +19 more
semanticscholar   +1 more source

Cell-based gene therapy for mending infarcted hearts [PDF]

open access: yes, 2011
The goal of this study was to analyse the efficiency of a combinatorial cell/growth factor therapy to improve function of infarcted murine hearts. The Insulin-like Growth Factor-1 (IGF-1) isoform, IGF-1Ea, has been shown to reduce scar formation and ...
Poudel, Bhawana, Poudel, Bhawana
core   +1 more source

The role of M cells and the long QT syndrome in cardiac arrhythmias: simulation studies of reentrant excitations using a detailed electrophysiological model

open access: yes, 2004
In this numerical study, we investigate the role of intrinsic heterogeneities of cardiac tissue due to M cells in the generation and maintenance of reentrant excitations using the detailed Luo-Rudy dynamic model. This model has been extended to include a
Cherry E. M.   +3 more
core   +1 more source

Estimation of elastic and viscous properties of the left ventricle based on annulus plane harmonic behavior [PDF]

open access: yes, 2006
Assessment of left ventricular (LV) function with an emphasis on contractility has been a challenge in cardiac mechanics during the recent decades. The LV function is usually described by the LV pressurevolume (P-V) diagram. The standard P-V diagrams
Gharib, Morteza   +4 more
core   +1 more source

Integrative Analysis of Calcium Cycling in Cardiac Muscle [PDF]

open access: yesCirculation Research, 2000
Abstract —The control of intracellular calcium is central to regulation of contractile force in cardiac muscle. This review illustrates how analysis of the control of calcium requires an integrated approach in which several systems are considered.
Eisner, David   +4 more
openaire   +3 more sources

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