Results 121 to 130 of about 1,322,246 (257)

Restricting excessive cardiac action potential and QT prolongation: a vital role for IKs in human ventricular muscle [PDF]

, 2005
Background - Although pharmacological block of the slow, delayed rectifier potassium current (I-Ks) by chromanol 293B, L-735,821, or HMR-1556 produces little effect on action potential duration (APD) in isolated rabbit and dog ventricular myocytes, the ...
Lengyel, Csaba Attila, Varró, András, Takács, János, Bogáts, Gábor, Nagy, Zsolt, Lathrop, David A., Biliczki, Péter, Bitay, Miklós, Jost, Norbert, Virág, László, Papp, Gyula   +10 more
core   +1 more source

Regional electrical differences and arrhythmia in the rat atria: Role of sympathetic nerve distribution and function

The Journal of Physiology, EarlyView.
Abstract figure legend Atrial fibrillation commonly develops in the left atrium and pulmonary veins (PVs), and can be triggered by sympathetic nerve activity. Here, we examined regional atrial differences in sympathetic nerve distribution and function in the rat.
James Saleeb‐Mousa, Manish Kalla, Neil Herring, Christopher O'Shea, Andrew M. Coney, Keith L. Brain, Andrew P. Holmes   +6 more
wiley   +1 more source

Silodosin inhibits noradrenaline-activated transcription factors Elk1 and SRF in human prostate smooth muscle. [PDF]

, 2012
The transcription factors Elk1 and serum response factor (SRF) are central regulators of cell cycle and phenotype in various cell types. Elk1 is activated by phosphorylation (serine-383), while activation of SRF requires its co-factor, myocardin ...
Christian G Stief, Strittmatter, Frank, Martin Hennenberg, Waidelich, Raphaela, Beckmann, Christer, Füllhase, Claudius, Rutz, Beata, Montorsi, Francesco, Petter Hedlund, Christer Beckmann, Christian Gratzke, Stief, Christian Georg, Raphaela Waidelich, Hedlund, Petter, Frank Strittmatter, Karl-Erik Andersson, Andersson, Karl-Erik, Francesco Montorsi, Hennenberg, Martin, Gratzke, Christian, Beata Rutz, Claudius Füllhase   +21 more
core   +1 more source

The inwardly rectifying K+ channel KIR7.1 controls uterine excitability throughout pregnancy

EMBO Molecular Medicine, 2014
Abnormal uterine activity in pregnancy causes a range of important clinical disorders, including preterm birth, dysfunctional labour and post‐partum haemorrhage.
Conor McCloskey, Cara Rada, Elizabeth Bailey, Samantha McCavera, Hugo A van den Berg, Jolene Atia, David A Rand, Anatoly Shmygol, Yi‐Wah Chan, Siobhan Quenby, Jan J Brosens, Manu Vatish, Jie Zhang, Jerod S Denton, Michael J Taggart, Catherine Kettleborough, David Tickle, Jeff Jerman, Paul Wright, Timothy Dale, Srinivasan Kanumilli, Derek J Trezise, Steve Thornton, Pamela Brown, Roberto Catalano, Nan Lin, Sarah K England, Andrew M Blanks   +27 more
doaj   +1 more source

Myostatin‐dependent detrusor remodelling mediates contractility impairment in diabetic rats’ bladder – a maximal elastance analysis

The Journal of Physiology, EarlyView.
Abstract figure legend In the muscular layer of long‐standing diabetic bladders increased myostatin expression promotes tissue remodelling by reducing the muscle‐to‐collagen ratio, ultimately diminishing bladder contractility. Maximal elastance – defined as the slope of the end‐emission pressure–volume relationship (EPR), derived from the regression ...
Cheng‐Yuan Lai, Hui‐Hsuan Lau, Ming‐Chun Hsieh, Hsien‐Yu Peng, Dylan Chou, Tsung‐Hsien Su, Tzer‐Bin Lin   +6 more
wiley   +1 more source

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

Voltage‐gated potassium channels mediate thyroid hormone control of skeletal muscle excitability

The Journal of Physiology, EarlyView.
Abstract figure legend Thyroid hormone (TH)‐dependent remodelling of potassium (K+) channel networks regulates skeletal muscle (SkM) excitability. Triiodothyronine (T3), locally generated from thyroxine (T4) by type 2 deiodinase (D2), binds thyroid hormone receptors (TRα/β) and modulates transcription via thyroid response elements (TREs).
Annarita Nappi, Caterina Miro, Annunziata Gaetana Cicatiello, Ilaria Piccialli, Serena Sagliocchi, Lucia Acampora, Federica Restolfer, Rosa Sirica, Melania Murolo, Emery Di Cicco, Daniela Terracciano, Anna Pannaccione, Monica Dentice   +12 more
wiley   +1 more source

The role of interleukin-4 receptor alpha on smooth muscle cells during helminth infection [PDF]

, 2011
Includes abstract.Includes bibliographical references (leaves 101-111).Interleukin-4 receptor alpha (IL-4Ra) signaling, mediated by the ligands IL-4 and IL- 13, is important for effective host protection during murine Nippostrongylus brasiliensis (N ...
Brombacher, Tiroyaone M H
core   +1 more source

Selective Gene Expression Analysis of Muscular and Vascular Components in Hearts Using Laser Microdissection Method

International Journal of Vascular Medicine, 2012
Background. The heart consists of various kinds of cell components. However, it has not been feasible to separately analyze the gene expression of individual components.
Ayami Ikeda, Hisashi Kai, Hidemi Kajimoto, Suguru Yasuoka, Masayoshi Kage, Tsutomu Imaizumi   +5 more
doaj   +1 more source

Beyond the Heart‐Lung Axis: A Review of the Crosstalk Between the Hemodynamic, Neurohormonal, and Immune Systems in Pulmonary Hypertension

Comprehensive Physiology, Volume 16, Issue 5, October 2026.
Pulmonary hypertension is driven by dynamic crosstalk beyond the physical connection between the heart and lung, involving neurohormonal systems, immune pathways, and peripheral organs. This review highlights how multisystem signaling contributes to disease progression and may reveal new diagnostic and therapeutic targets.
Alejandro A. Vega, Juliet M. Alfaro, David S. Pinto, Maryam Emamimeybodi, Soban Umar   +4 more
wiley   +1 more source