Results 41 to 50 of about 254,999 (359)

Active wetting of epithelial tissues

open access: yes, 2019
Development, regeneration and cancer involve drastic transitions in tissue morphology. In analogy with the behavior of inert fluids, some of these transitions have been interpreted as wetting transitions.
A Ravasio   +64 more
core   +3 more sources

Contractile units in disordered actomyosin bundles arise from F-actin buckling

open access: yes, 2012
Bundles of filaments and motors are central to contractility in cells. The classic example is striated muscle, where actomyosin contractility is mediated by highly organized sarcomeres which act as fundamental contractile units. However, many contractile
A. Yamada   +5 more
core   +1 more source

Viability and Contractility of Rat Brain Pericytes in Conditions That Mimic Stroke; an in vitro Study

open access: yesFrontiers in Neuroscience, 2019
Reopening of the cerebral artery after occlusion often results in “no-reflow” that has been attributed to the death and contraction (rigor mortis) of pericytes.
Mohammed Heyba   +5 more
doaj   +1 more source

The contractile ring [PDF]

open access: yesCurrent Biology, 2011
What is the contractile ring? During cell division, the contractile ring generates the constricting force to separate one cell into two cells. Formed during cytokinesis, the last step of cell division, the contractile ring is composed of filamentous actin (F-actin) and the motor protein myosin-2, along with additional structural and regulatory proteins.
openaire   +2 more sources

Interval training normalizes cCardiomyocyte function, diastolic Ca2+ control, and SR Ca2+ release synchronicity in a mouse model of diabetic cardiomyopathy [PDF]

open access: yes, 2009
In the present study we explored the mechanisms behind excitation-contraction (EC)-coupling defects in cardiomyocytes from mice with type-2 diabetes (db/db), and determined whether 13-weeks of aerobic interval training could restore cardiomyocyte Ca2 ...
Aasum, E.   +10 more
core   +2 more sources

Cell density–dependent nuclear‐cytoplasmic shuttling of SETDB1 integrates with Hippo signaling to regulate YAP1‐mediated transcription

open access: yesFEBS Letters, EarlyView.
At low cell density, SETDB1 and YAP1 accumulate in the nucleus. As cell density increases, the Hippo pathway is gradually activated, and SETDB1 is associated with increased YAP1 phosphorylation. At high cell density, phosphorylated YAP1 is sequestered in the cytoplasm, while SETDB1 becomes polyubiquitinated and degraded by the ubiquitin–proteasome ...
Jaemin Eom   +3 more
wiley   +1 more source

Effects of electro-mechanical uncouplers, hormonal stimulation and pacing rate on the stability and function of cultured rabbit myocardial slices

open access: yesFrontiers in Bioengineering and Biotechnology
Introduction: Recent advances have enabled organotypic culture of beating human myocardial slices that are stable for weeks. However, human myocardial samples are rare, exhibit high variability and frequently originate from diseased hearts.
V. Baron   +7 more
doaj   +1 more source

Suppression of lusitropy as a disease mechanism in cardiomyopathies

open access: yesFrontiers in Cardiovascular Medicine, 2023
In cardiac muscle the action of adrenaline on β1 receptors of heart muscle cells is essential to adjust cardiac output to the body’s needs. Adrenergic activation leads to enhanced contractility (inotropy), faster heart rate (chronotropy) and faster ...
Steven Marston, Jose Renato Pinto
doaj   +1 more source

Impact of atrial fibrillation on the cardiovascular system through a lumped-parameter approach [PDF]

open access: yes, 2014
Atrial fibrillation (AF) is the most common arrhythmia affecting millions of people in the Western countries and, due to the widespread impact on the population and its medical relevance, is largely investigated in both clinical and bioengineering ...
Camporeale, Carlo   +3 more
core   +2 more sources

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