Results 121 to 130 of about 4,095,708 (243)

FK506 binding protein associated with the calcium release channel (ryanodine receptor).

Journal of Biological Chemistry, 1992
The calcium release channel (CRC)/ryanodine receptor (RyRec) has been identified as the foot structure of the sarcoplasmic reticulum (SR) and provides the pathway for calcium efflux required for excitation-contraction coupling in skeletal muscle. The CRC has previously been reported to consist of four identical 565-kDa protomers.
T, Jayaraman, A M, Brillantes, A P, Timerman, S, Fleischer, H, Erdjument-Bromage, P, Tempst, A R, Marks   +6 more
openaire   +2 more sources

Multiscale mechanistic modelling of heterogeneity in cardiac sub‐cellular calcium handling accounting for variable t‐system density

The Journal of Physiology, EarlyView.
Abstract figure legend Illustration of spatial calcium dynamics (left panels) and the state cycle approximation (middle panel) that enables reduced simulation of spatially dependent dynamics without explicit description of space (right panels). The selected example here illustrates a spontaneous calcium wave, showing temporal snapshots of local calcium
Michael A Colman, Yohannes Shiferaw, David Conesa   +2 more
wiley   +1 more source

The calcium-sensing receptor and insulin secretion : a role outside systemic control 15 years on [PDF]

, 2008
In the 15 years since the identification and characterisation of the extracellular calcium-sensing receptor (CaR), it has become increasingly apparent that this cationic binding receptor is found in many tissues, not associated with the control of plasma
Hills, Claire E., Hodgkin, M. N., Squires, Paul E.   +2 more
core   +1 more source

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

Biological 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, CÉSAR CÁRDENAS, JORGE HIDALGO, ENRIQUE JAIMOVICH   +3 more
doaj  

Sedentary ageing remodels the structure–function relationships that underlie calcium signalling at super‐resolution scales in the heart

The Journal of Physiology, EarlyView.
Abstract figure legend Illustration of calcium spark function and ryanodine receptor (RyR) structure within a sedentary model of ageing. Upon sympathetic stimulation from 1 µM isoprenaline a linear response to calcium spark morphology occurred, accompanied by a biphasic progression of RyR remodelling across age.
Miriam E. Hurley, David Conesa, Alan P. Benson, Michael A. Colman   +3 more
wiley   +1 more source

Desensitization of the skeletal muscle ryanodine receptor: evidence for heterogeneity of calcium release channels

Biophysical Journal, 1995
Ca release channels from the junctional sarcoplasmic reticulum (SR) membranes of rabbit skeletal muscle were incorporated into the lipid bilayer membrane, and the inactivation kinetics of the channel were studied at large membrane potentials. The channels conducting Cs currents exhibited a characteristic desensitization that is both ligand and voltage ...
openaire   +2 more sources

Intracellular mechanosensation in intestinal smooth muscle: Piezo1 complexes amplify signalling beyond the surface

The Journal of Physiology, EarlyView.
Abstract figure legend Mechanosensation is not confined to the cell surface. In intestinal smooth muscle Piezo1 is predominantly intracellular (86%), where it forms a nanoscale (<40 nm) complex at the sarcoplasmic reticulum (SR)–plasma membrane junction. Within this sensor–amplifier–effector axis intra‐Piezo1 is the sensor that detects force at the SR,
Geoanna M. Bautista, Declan Manning, Emily C. Lieu, Stephanie I. Ugochukwu, Collin Matsumoto, Joshua P. Tulman, Miguel Martin‐Aragon Baudel, Nuria Daghbouche‐Rubio, Steven J. McElroy, Sal A. Baker, Manuel F. Navedo, L. Fernando Santana   +11 more
wiley   +1 more source

Calcium-sensing receptor activation increases cell-cell adhesion and ß-cell function [PDF]

Background/Aims: The extracellular calcium-sensing receptor (CaR) is expressed in pancreatic β-cells where it is thought to facilitate cell-to-cell communication and augment insulin secretion.
Hills, Claire E., Bennett, Jeanette, Younis, Mustafa Y. G., Squires, Paul E., Liu, Kuo-Kang, Siamantouras, Eleftherios   +5 more
core   +1 more source

SGLT2i in heart failure: Cardiorenal mechanisms, clinical evidence and translational perspectives

Clinical and Translational Discovery, Volume 6, Issue 5, October 2026.
SGLT2 inhibitors improve heart failure outcomes through integrated cardiorenal mechanisms. In the kidney, they reduce glucose and sodium reabsorption, promoting natriuresis, osmotic diuresis and renal protection. In the heart, they enhance myocardial energetics, reduce inflammation, oxidative stress, fibrosis and adverse remodelling, resulting in fewer
Jelica Grujic‐Milanovic, Jovana Rajkovic, Radmila Novakovic, Javad Sharifi‐Rad, Daniela Calina   +4 more
wiley   +1 more source

Genetic and Pharmacologic Inhibition of Myostatin Restores Muscle Mass in a Dynamin 2‐Related Centronuclear Myopathy Mouse Model

Journal of Cachexia, Sarcopenia and Muscle, Volume 17, Issue 5, October 2026.
ABSTRACT Background Autosomal dominant centronuclear myopathy (ADCNM), most commonly caused by mutations in the dynamin 2 (DNM2) gene, is a rare congenital myopathy characterized by progressive muscle weakness and atrophy. Myostatin, a key negative regulator of skeletal muscle mass, has shown therapeutic potential in several models of neuromuscular ...
Durieux Anne‐Cécile, Arnould David, Velarde Mathias, Allibert Valentine, Paret Chloé, Debelley Quentin, Kizilkilic Esra, Chambon Sidney, Girard Emmanuelle, Collin Louise, Gensel Alexandre, Castells Josiane, Pasternack Aja, Bowen Maximilien, Morel Baptiste, Hourdé Christophe, Laurent Schaeffer, Ritvos Olli, Bitoun Marc, Mounier Rémi, Freyssenet Damien   +20 more
wiley   +1 more source