Results 291 to 300 of about 1,282,481 (350)

Calorie Restriction modulates beta cell IP₃R activity to regulate Ca²⁺ homeostasis and cell network connectivity

Pfabe J, dos Santos C, Cutler M, Acree C, Habashy A, Cambraia A, Perkins G, Ellisman MH, Rupnik MS, Arrojo e Drigo R.   +9 more
europepmc   +1 more source

Spatiotemporal proteomics reveals dynamic antagonistic gradients shaping signalling waves

Meijer WHM, Andrade V, Stelloo S, Thomas WM, van Oostrom MJ, Ilcken EF, Peters KTJ, Vermeulen M, Sonnen KF.   +8 more
europepmc   +1 more source

Cytosolic calcium oscillation signaling in guard cell

Plant Science, 2004
Abstract Calcium signaling has been established to play a very important role in stomatal movements. More and more attentions have now been focused on cytosolic calcium ([Ca2+]cyt) oscillation in guard cell. It is still not clear how [Ca2+]cyt oscillation occurs and how it is decoded.
Huimin Yang, Xiaoyan Zhang, Gen-xuan Wang   +2 more
semanticscholar   +4 more sources

Adenylate cyclase activity oscillations as signals for cell aggregation in Dictyostelium discoideum

Nature, 1977
As well as acting as a chemotactic factor1 cyclic AMP stimulates cells of Dictyostelium discoideum to differentiate after the end of growth into aggregation-competent cells. These differentiation signals have a temporal pattern : pulses are efficient signals, whereas continuous administration of cyclic AMP may even have an adverse effect2,3.
G. Gerisch, W. Roos, C. Scheidegger
openaire   +4 more sources

pH oscillations in cell suspensions of Dictyostelium discoideum: Their relation to cyclic-amp signals [PDF]

Journal of Cell Science, 1978
ABSTRACT Cells of Dictyostelium discoideum known to release cyclic AMP (cAMP) rhythmically in the form of pulses, change with the same period of about 8 min the pH of their medium. The pH is used here as an indicator to investigate the effect of externally added cAMP pulses on the oscillations.
Dieter Malchow, G. Gerisch, Vidyanand Nanjundiah   +2 more
openaire   +3 more sources

Role of mitochondria in Ca2+ oscillations and shape of Ca2+ signals in pancreatic acinar cells

Biochemical Pharmacology, 2002
We studied the role of mitochondria in Ca(2+) signals in fura-2 loaded exocrine pancreatic acinar cells. Mitochondrial depolarization in response to carbonylcyanide-p-tryfluoromethoxyphenyl hydrazone or rotenone (assessed by confocal microscopy using rhodamine-123) induced a partial but statistically significant reduction in the decay of Ca(2+) signals
Pedro J. Camello, Ginés M. Salido, Cristina Camello-Almaraz, José A. Pariente   +3 more
openaire   +4 more sources

Receptor-activated cytoplasmic Ca2+ oscillations in pancreatic acinar cells: Generation and spreading of Ca2+ signals

Cell Calcium, 1991
Receptor-activated cytoplasmic Ca2+ oscillations have been investigated using both single cell microfluorometry and voltage-clamp recording of Ca(2+)-dependent Cl- current in single internally perfused acinar cells. In these cells there is direct experimental evidence showing that the ACh-evoked [Ca2+]i fluctuations are due to an inositol trisphosphate-
Carl C.H. Petersen, Ole H. Petersen, Makoto Wakui, Emil C. Toescu, D V Gallacher, David I. Yule   +5 more
openaire   +4 more sources

Effect of Heat Acclimation and Heat Shock on Oscillations of Carbamylcholine-Evoked Ca2+ Signal in HSY Cell Line

Journal of Basic and Clinical Physiology and Pharmacology, 1999
We studied effects of heat acclimation (HA) and acute heat stress (HS) on Ca2+ signal oscillations following supramaximal carbamyl-choline (CCh) stimulation, using HSY cell line as a model. In the control cells, oscillations decreased their amplitude with time.
Arie Moran, Michal Horowitz, Pavel Kaspler   +2 more
openaire   +4 more sources

Olfactory Nerve Stimulation-Evoked mGluR1 Slow Potentials, Oscillations, and Calcium Signaling in Mouse Olfactory Bulb Mitral Cells

Journal of Neurophysiology, 2006
Fast synaptic transmission between olfactory receptor neurons and mitral cells (MCs) is mediated through AMPA and NMDA ionotropic glutamate receptors. MCs also express high levels of metabotropic glutamate receptor 1 (mGluR1) whose functional significance is less understood.
Thomas Knöpfel, Q. Yuan
openaire   +4 more sources

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Oscillation and noise determine signal transduction in shark multimodal sensory cells

Nature, 1994
Oscillating membrane potentials that generate rhythmic impulse patterns are considered to be of particular significance for neuronal information processing. In contrast, noise is usually seen as a disturbance which limits the accuracy of information transfer.
Hans A. Braun, Heimo Wissing, Heimo Wissing, Klaus Schäfer, Klaus Schäfer, Martin Hirsch   +5 more
openaire   +3 more sources