Results 91 to 100 of about 1,322,246 (257)

Endothelin and increased contractility in adult rat ventricular myocytes. Role of intracellular alkalosis induced by activation of the protein kinase C-dependent Na(+)-H+ exchanger [PDF]

open access: yes, 1991
Endothelin, a 21-amino acid vasoactive peptide, is among the most potent positively inotropic agents yet described in mammalian heart. Having demonstrated that endothelin's inotropic effect is due, in part, to an apparent sensitization of cardiac ...
Smith, T. W.   +2 more
core   +1 more source

Calcium handling by vascular myocytes in hypertension

open access: yesBrazilian Journal of Medical and Biological Research, 1997
Calcium ions (Ca2+) trigger the contraction of vascular myocytes and the level of free intracellular Ca2+ within the myocyte is precisely regulated by sequestration and extrusion mechanisms. Extensive evidence indicates that a defect in the regulation of
R.C.A. Tostes   +3 more
doaj   +1 more source

Canonical and non‐canonical functions of proteins regulating mitochondrial dynamics in mammalian physiology

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Mitochondria are highly dynamic organelles that continuously remodel their architecture through coordinated cycles of fusion and fission. This review examines the four key GTPases that orchestrate mitochondrial dynamics in mammals: MFN1, MFN2, OPA1, and DRP1.
Rémi Chaney   +4 more
wiley   +1 more source

Resident phenotypically modulated vascular smooth muscle cells in healthy human arteries. [PDF]

open access: yes, 2012
Vascular interstitial cells (VICs) are non-contractile cells with filopodia previously described in healthy blood vessels of rodents and their function remains unknown.
Reddy, M   +10 more
core   +1 more source

Endothelial cell impact on smooth muscle cell properties: role of hemodynamic forces [PDF]

open access: yes, 2009
The vascular endothelium is a dynamic cell monolayer located at the interface of the vessel wall and bloodstream, where it regulates the physiological effects of humoral and hemodynamic stimuli on vessel tone and remodelling.
Killeen, Maria T.
core   +2 more sources

In silico modelling of multi‐electrode arrays for enhancing cardiac drug testing on hiPSC‐CM heterogeneous tissues

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Schematic overview of the experimental and computational framework for investigating hiPSC‐CM electrophysiology with MEA systems. The MEA‐based model integrates experimental data with phenotype‐specific ionic models and tissue‐level heterogeneity.
Sofia Botti   +2 more
wiley   +1 more source

Epicardial Lineages and Cardiac Repair

open access: yesJournal of Developmental Biology, 2013
The death of cardiac myocytes resulting from myocardial infarction is a major cause of heart failure worldwide. Effective therapies for regenerating lost cardiac myocytes are lacking.
Manvendra K. Singh, Jonathan A. Epstein
doaj   +1 more source

Cyclic AMP-Dependent Regulation of Kv7 Voltage-Gated Potassium Channels

open access: yesFrontiers in Physiology, 2020
Voltage-gated Kv7 potassium channels, encoded by KCNQ genes, have major physiological impacts cardiac myocytes, neurons, epithelial cells, and smooth muscle cells. Cyclic adenosine monophosphate (cAMP), a well-known intracellular secondary messenger, can
Jennifer van der Horst   +2 more
doaj   +1 more source

The Kv7 Channel and Cardiovascular Risk Factors

open access: yesFrontiers in Cardiovascular Medicine, 2017
Potassium channels play a pivotal role in the regulation of excitability in cells such as neurons, cardiac myocytes, and vascular smooth muscle cells.
Andreas L. Fosmo, Øyvind B. Skraastad
doaj   +1 more source

TMEM16A channel signalling microdomains in the regulation of vascular function

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Schematic representation of TMEM16A channel signalling microdomains. Calcium influx or calcium release from the endoplasmic/sarcoplasmic reticulum (ER/SR) activates TMEM16A channels through interactions with regulatory proteins in vascular smooth muscle cells or endothelial cells. TMEM16A channel activation drives chloride efflux,
Fênix Araujo, Swapnil K. Sonkusare
wiley   +1 more source

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