Results 131 to 140 of about 28,867 (291)

Antioxidant supplementation blunts the proteome response to 3 weeks of sprint interval training preferentially in human type 2 muscle fibres

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Sprint interval training (SIT) is a popular time‐efficient type of endurance training. Healthy young men performed nine SIT sessions (4–6 × 30 s all‐out cycling sprints) over 3 weeks while being supplemented with antioxidants (high doses of vitamins C and E) or placebo. Muscle biopsies taken before and after the first SIT session
Victoria L. Wyckelsma   +12 more
wiley   +1 more source

Finite element model to study calcium distribution in oocytes involving voltage gated Ca2+ channel, ryanodine receptor and buffers

open access: yesAlexandria Journal of Medicine, 2016
Calcium is one of the most important signalling ions in cell biology performing numerous functions with high specificity. A calcium wave triggers life at fertilization but also can cause cell death.
Parvaiz Ahmad Naik, Kamal Raj Pardasani
doaj   +1 more source

Mitochondria and neuroprotection in stroke: Cationic arginine-rich peptides (CARPs) as a novel class of mitochondria-targeted neuroprotective therapeutics [PDF]

open access: yes, 2018
Stroke is the second leading cause of death globally and represents a major cause of devastating long-term disability. Despite sustained efforts to develop clinically effective neuroprotective therapies, presently there is no clinically available ...
Anderton, Ryan S   +4 more
core   +1 more source

Computational modelling of the pro‐ and antiarrhythmic effects of atrial high rate‐dependent trafficking of small‐conductance calcium‐activated potassium channels

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Small‐conductance calcium‐activated potassium (SK) channels are important for atrial repolarization and can be targeted for atrial‐specific antiarrhythmic treatments. We developed a computational model with a calcium sensor to study the effects of increased pacing rate (5 Hz), which enhances SK‐channel gating and forward ...
Stefan Meier   +3 more
wiley   +1 more source

Single-channel recording of inositol trisphosphate receptor in the isolated nucleus of a muscle cell line

open access: yesBiological Research, 2006
Nuclear calcium appears to have an important role in the regulation of gene expression in many cells, but the mechanisms involved in controlling nuclear Ca2+ signaling are controversial and still poorly understood.
CARLOS KUSNIER   +3 more
doaj  

El acoplamiento excitación-contracción en el músculo esquelético: preguntas por responder a pesar de 50 años de estudio

open access: yesBiomédica: revista del Instituto Nacional de Salud, 2009
El mecanismo de acoplamiento excitación-contracción fue definido en el músculo esquelético como la secuencia de eventos que ocurre desde la generación del potencial de acción en la fibra muscular hasta que se inicia la generación de tensión.
Juan Camilo Calderón-Vélez   +1 more
doaj   +1 more source

What we don't know about the structure of ryanodine receptor calcium release channels

open access: yesClinical and Experimental Pharmacology and Physiology, 2003
Summary1. The ryanodine receptor (RyR) is the Ca2+ release channel in the sarcoplamic reticulum of skeletal and cardiac muscle and is essential for respiration and heart beat. The RyR channel releases Ca2+ from intracellular stores in a variety of other cell types, where it normally coexists with the inositiol 1,4,5‐trisphosphate receptor (IP3R).
Dulhunty, Angela, Pouliquin, Pierre
openaire   +3 more sources

Deciphering pro‐arrhythmogenic mechanisms of EPAC in human atrial cardiomyocytes

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend This study aimed to investigate the effect of exchange proteins directly activated by cAMP (EPAC) on the regulation of human atrial cardiomyocyte electrophysiology and their potential involvement in the onset of atrial fibrillation (AF).
Arthur Boileve   +11 more
wiley   +1 more source

Systems level circuit model of C. elegans undulatory locomotion: mathematical modeling and molecular genetics [PDF]

open access: yes, 2007
To establish the relationship between locomotory behavior and dynamics of neural circuits in the nematode C. elegans we combined molecular and theoretical approaches. In particular, we quantitatively analyzed the motion of C.
Cronin, Chris J.   +4 more
core   +1 more source

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