Results 11 to 20 of about 160,172 (303)

Pulses and waves of contractility [PDF]

open access: yesJournal of Cell Biology, 2017
The nature of signal transduction networks in the regulation of cell contractility is not entirely clear. In this study, Graessl et al. (2017. J. Cell Biol. https://doi.org/10.1083/jcb.201706052) visualized and characterized pulses and waves of Rho activation in adherent cells and proposed excitable Rho signaling networks underlying cell contractility.
Min Wu
openaire   +3 more sources

Altered excitation-contraction coupling in human chronic atrial fibrillation [PDF]

open access: yes, 2012
This review focuses on the (mal)adaptive processes in atrial excitation-contraction coupling occurring in patients with chronic atrial fibrillation. Cellular remodeling includes shortening of the atrial action potential duration and effective refractory ...
Grandi, E., Pandit, S.V., Workman, A.J.
core   +7 more sources

Noninvasive identification and therapeutic implications of supernormal left ventricular contractile phenotype [PDF]

open access: yesExploration of Cardiology
Left ventricular (LV) function is typically evaluated through LV ejection fraction (EF), a robust indicator of risk, showing a nonlinear increase in mortality rates below 40%.
Yi Wang, Lixue Yin
doaj   +1 more source

Improved ventricular function during inhalation of PGI(2) aerosol partly relies on enhanced myocardial contractility [PDF]

open access: yes, 2005
Inhaled prostacyclin (PGI(2)) aerosol induces selective pulmonary vasodilation. Further, it improves right ventricular ( RV) function, which may largely rely on pulmonary vasodilation, but also on enhanced myocardial contractility.
Thein, E.   +12 more
core   +1 more source

Regulation of Papillary Muscle Contractility by NAD and Ammonia Interplay: Contribution of Ion Channels and Exchangers

open access: yesMembranes, 2022
Various models, including stem cells derived and isolated cardiomyocytes with overexpressed channels, are utilized to analyze the functional interplay of diverse ion currents involved in cardiac automaticity and excitation–contraction coupling control ...
Alexey S. Averin   +6 more
doaj   +1 more source

Analysis of Contractility and Invasion Potential of Two Canine Mammary Tumor Cell Lines

open access: yesFrontiers in Veterinary Science, 2017
Cancer cells are surrounded by a mechanically and biochemically distinct microenvironment that undergoes dynamic changes throughout the neoplastic progression.
Kaisa Rajakylä   +2 more
doaj   +1 more source

AI-Based Estimation of End-Systolic Elastance From Arm-Pressure and Systolic Time Intervals

open access: yesFrontiers in Artificial Intelligence, 2021
Left ventricular end-systolic elastance (Ees) is a major determinant of cardiac systolic function and ventricular-arterial interaction. Previous methods for the Ees estimation require the use of the echocardiographic ejection fraction (EF).
Vasiliki Bikia   +4 more
doaj   +1 more source

Diabetes is associated with impairment of uterine contractility and high Caesarean section rate [PDF]

open access: yes, 2011
Aims/hypothesis The prevalence of births worldwide complicated by diabetes mellitus is increasing. In the UK, for example,
S. Al-Qahtani   +13 more
core   +1 more source

Long-Term Regulation of Excitation–Contraction Coupling and Oxidative Stress in Cardiac Myocytes by Pirfenidone

open access: yesFrontiers in Physiology, 2018
Pirfenidone (PFD) is used to treat human pulmonary fibrosis. Its administration to animals with distinct forms of cardiovascular disease results in striking improvement in cardiac performance.
Adrián Monsalvo-Villegas   +2 more
doaj   +1 more source

Pathophysiological Mechanisms of Cardiac Dysfunction in Transgenic Mice with Viral Myocarditis

open access: yesCells, 2023
Viral myocarditis is pathologically associated with RNA viruses such as coxsackievirus B3 (CVB3), or more recently, with SARS-CoV-2, but despite intensive research, clinically proven treatment is limited.
Matthias Rohrbeck   +22 more
doaj   +1 more source

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