Results 131 to 140 of about 2,688,953 (298)

The organisation and functions of local Ca²⁺ signals [PDF]

, 2001
Calcium (Ca2+) is a ubiquitous intracellular messenger, controlling a diverse range of cellular processes, such as gene transcription, muscle contraction and cell proliferation.
Berridge, Michael J., Bootman, Martin D., Lipp, Peter   +2 more
core  

Mechanisms underlying local Ca2+ signalling differences between right and left atrial myocytes at normal and increased frequencies

The Journal of Physiology, EarlyView.
Abstract figure legend Left atrial myocytes have TAT‐associated faster Ca2+ release but are more prone to maladaptation at higher frequencies due to weaker peripheral SR Ca2+ uptake and smaller trigger Ca2+ current. Abstract Changes in heart rate affect Ca2+ signalling and contractility in ventricular muscle, but the effects on atrial Ca2+ signalling ...
Joon‐Chul Kim, Hieu Trong Huynh, Phuong Kim Luong, Tran Nguyet Trinh, Yixuan Wu, Eleonora Grandi, Sun‐Hee Woo   +6 more
wiley   +1 more source

In Silico Analysis of Limonoid-Based Antifeedants from Melia volkensii Targeting the Ryanodine Receptor in Spodoptera frugiperda

Sciences of Phytochemistry
Spodoptera frugiperda is an invasive pest causing significant crop losses worldwide. Resistance development and health and environmental concerns associated with synthetic insecticides have prompted a search for eco-friendly biopesticides. Limonoids such
Mohamed Said Rajab
doaj   +1 more source

Contribution of PGE2 EP1 receptor in hemin-induced neurotoxicity

Frontiers in Molecular Neuroscience, 2013
Although hemin-mediated neurotoxicity has been linked to the production of free radicals and glutamate excitotoxicity, the role of the prostaglandin E2 (PGE2)-EP1 receptor remains unclear.
Shekher eMohan, Alexander V. Glushakov, Alexander edeCurnou, Shuh eNarumiya, Sylvain eDoré   +4 more
doaj   +1 more source

14‐3‐3 proteins: Regulators of cardiac excitation–contraction coupling and stress responses

The Journal of Physiology, EarlyView.
Abstract figure legend 14‐3‐3 protein interactions in cardiac regulation. Schematic representation of 14‐3‐3 binding partners in excitation–contraction coupling, transcriptional regulation/development and stress response pathways. Asterisks indicate targets where the exact 14‐3‐3 binding site is unknown.
Heather C. Spooner, Rose E. Dixon
wiley   +1 more source

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

The 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, Marta Murgia, Sigitas Kamandulis, Stefano Gastaldello, Marius Brazaitis, Audrius Snieckus, Nerijus Eimantas, Mati Pääsuke, Sebastian Edman, William Apro, Daniel C. Andersson, Håkan Westerblad, Tomas Venckunas   +12 more
wiley   +1 more source

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

The 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, Dobromir Dobrev, Paul G. A. Volders, Jordi Heijman   +3 more
wiley   +1 more source

Deciphering pro‐arrhythmogenic mechanisms of EPAC in human atrial cardiomyocytes

The 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, Margaux Aize, Maximin Détrait, Laura Brard, Adrien Leboyer, Pierre‐Antoine Dupont, Alexandre Lebrun, Vladimir Saplacan, Christophe Simard, Fabien Brette, Frank Lezoualc'h, Laurent Sallé   +11 more
wiley   +1 more source

Epigenetic changes as a common trigger of muscle weakness in congenital myopathies [PDF]

, 2017
Congenital myopathies are genetically and clinically heterogeneous conditions causing severe muscle weakness, and mutations in the ryanodine receptor gene (RYR1) represent the most frequent cause of these conditions.
Attali, Ruben, Finotti, Alessia, Gambari, Roberto, Gautel, Mathias, Heytens, Luc, Jungbluth, Heinz, Mitrani-Rosenbaum, Stella, Mosca, Barbara, Muntoni, Francesco, Nevo, Yoram, Pillay, Komala, Rokach, Ori, Sekulic-Jablanovic, Marijana, Treves, Susan, Voermans, Nicol, Wilmshurst, Jo, Zhou, Haiyan, Zorzato, Francesco   +17 more
core  

Ryanodine receptors are part of the myospryn complex in cardiac muscle

Scientific Reports, 2017
The Cardiomyopathy–associated gene 5 (Cmya5) encodes myospryn, a large tripartite motif (TRIM)-related protein found predominantly in cardiac and skeletal muscle. Cmya5 is an expression biomarker for a number of diseases affecting striated muscle and may
Matthew A. Benson, Caroline L. Tinsley, Adrian J. Waite, Francesca A. Carlisle, Steve M. M. Sweet, Elisabeth Ehler, Christopher H. George, F. Anthony Lai, Enca Martin-Rendon, Derek J. Blake   +9 more
doaj   +1 more source