Results 51 to 60 of about 29,179 (204)

Higher sensitivity to ouabain‐induced toxicity in human induced pluripotent stem cell‐derived cardiomyocytes than human adult heart tissue despite similar Na+/K+‐ATPase pump current amplitudes

British Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Human induced pluripotent stem cell‐derived cardiomyocytes (hiPSC‐CM) have gained interest as a pharmacological model but their immaturity leads to uncertainty regarding translation. We studied the key player in maintaining ionic homeostasis, the Na+/K+‐ATPase (NKA), in hiPSC‐CM.
Djemail Ismaili, Paavo Virtanen, Junsoo Im, Paul Brunnbauer, Umber Saleem, Muhammed Ikbal Sönmez, Carl Schulz, Margaret Nandudu, Joris Winters, Cristina E. Molina, Johannes Petersen, Monika Stoll, Ulrich Schotten, Arne Hansen, Thomas Eschenhagen, Jussi T. Koivumäki, Torsten Christ   +16 more
wiley   +1 more source

Spreading depolarization and its influence on epileptiform activity

Epilepsia, EarlyView.
Abstract Spreading depolarization (SD) is a transient disruption of electrographic activity that slowly propagates through the gray matter by chemical contiguity, and it is characterized by a large depolarization of neurons and glial cells. SD, which is associated with massive changes in ion homeostasis, including extreme increases in [K+]o, was shown ...
Maxime Lévesque, Rüdiger Köhling, Massimo Avoli   +2 more
wiley   +1 more source

Ouabain Modulates Zymosan-Induced Peritonitis in Mice

Mediators of Inflammation, 2015
Ouabain, a potent inhibitor of the Na+, K+-ATPase, was identified as an endogenous substance. Recently, ouabain was shown to affect various immunological processes.
Jacqueline Alves Leite, Anne Kaliery De Abreu Alves, José Guilherme Marques Galvão, Mariana Pires Teixeira, Luiz Henrique Agra Cavalcante-Silva, Cristoforo Scavone, Alexandre Morrot, Vivian Mary Rumjanek, Sandra Rodrigues-Mascarenhas   +8 more
doaj   +1 more source

Zebrafish as a model for Catel–Manzke syndrome—identification and characterization of the zebrafish TGDS ortholog

The FEBS Journal, EarlyView.
Zebrafish Tgds, when expressed as a recombinant protein, catalyzes the dehydration of UDP‐D‐glucose, the initial step in the formation of 6‐deoxyhexoses. Corresponding Tgds mutations found in Catel–Manzke syndrome patients lead to reduced enzymatic activity and stability.
Maria Rosaria Coppola, Deianira Bellitto, Erfan Asgari, Virginia Bazzurro, Giorgia Casucci, Francesco Piacente, Matteo Bozzo, Davide Ceresa, Costantino Parisi, Cecilia Winata, Simona Candiani, Michela Tonetti   +11 more
wiley   +1 more source

Alpha- and beta-adrenergic mediation of changes in metabolism and Na/K exchange in rat brown fat [PDF]

, 1985
Double- and triple-barreled ion-sensitive microelectrodes were used to measure changes in extracellular K+ and Na+ concentrations ([K+]o, [Na+]o) in brown fat.
Coles, Jonathan A., Girardier, Lucien, Schneider-Picard, Gisela   +2 more
core   +2 more sources

Body size of male Atlantic salmon (Salmo salar L.) at introduction of a 5‐week LD12:12 winter signal influences their decision to mature early or smoltify

Journal of Fish Biology, EarlyView.
Abstract Sexual maturation of male Atlantic salmon post‐smolts (‘jacking’) is undesired in aquaculture and seems to occur due to the intensification in modern facilities. Maturation depends on internal and external factors (temperature, photoperiod, feed availability, energy levels, body size, genetic background) that act on the brain‐pituitary‐gonad ...
Enrique Pino‐Martinez, Kristine F. Staveland, Mitchell S. Fleming, Pablo Balseiro, Cindy Pedrosa, Sigurd O. Handeland   +5 more
wiley   +1 more source

A low concentration of ouabain (0.18 µg/kg) enhances hypertension in spontaneously hypertensive rats by inhibiting the Na+ pump and activating the renin-angiotensin system

Brazilian Journal of Medical and Biological Research, 2010
We investigated the effects of low ouabain concentrations on systolic (SAP) and diastolic (DAP) arterial pressures and on pressor reactivity in 3-month-old male spontaneously hypertensive rats (SHR). Arterial blood pressure (BP) and pressor reactivity to
F.D.M. Siman, I. Stefanon, D.V. Vassallo, A.S. Padilha   +3 more
doaj  

Changes in extracellular pH during electrical stimulation of isolated rat vagus nerve [PDF]

, 1986
Double-barrelled pH-sensitive micro-electrodes were used to record changes of extracellular pH during repetitive stimulation of isolated rat vagus nerves. It was found that a small initial alkaline shift was followed by a prolonged acidification.
Ammann, Baker, Ballanyi, Bostock, Förstl, G. Ten Bruggencate, Gebert, Grafe, H. Bostock, Kraig, Mutch, P. Grafe, Ritchie, Ritchie, Steinhagen, Urbanics, W. Endres   +16 more
core   +1 more source

Expression of corticoid‐regulatory genes in the gills of Atlantic salmon (Salmo salar) parr and smolt and during salinity acclimation

Journal of Fish Biology, EarlyView.
Abstract In teleost fishes, cortisol is the major corticoid and has both glucocorticoid and mineralocorticoid actions. However, how fish tissues discriminate between these distinct corticosteroid actions is unclear. In mammals, the major factors responsible for intracellular corticosteroid regulation are glucocorticoid receptors (grs) and the ...
Makoto Kusakabe, Takashi Yada, Graham Young, Amy M. Regish, Stephen D. McCormick   +4 more
wiley   +1 more source