Titlebook: Calcium Transport and Intracellular Calcium Homeostasis; Danielle Pansu,Felix Bronner Conference proceedings 1990 Springer-Verlag Berlin H

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The Activity of the Basolateral Membrane Calcium-Pumping ATPase and Intestinal Calcium Transportsues, extrusion of Ca. from the cell by the Ca.-pump is also the only active, energy-requiring step (Bronner, Pansu & Stein 1986). Although the first studies of Ca. transport by a calmodulin-sensitive Ca.-pump in intestinal basolateral membranes were published in 1981 (Nellans & Popovitch 1981), it

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The Role of Sodium/Calcium Exchange in the Regulation of Vascular Contractilityan enter the cytosol from the sarcoplasmic reticulum (SR) when it is released by inositol 1,4,5-trisphosphate (IP.) and, perhaps, by Ca.-induced Ca. release as a result of agonist activation. Ca. can also enter the cytosol from the extracellular fluid via voltage-gated and/or agonist receptor-operat

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Na+-Ca2+ and Na+-H+ Antiporter Interactions. Relations between Cytosolic Free Ca2+, Na+ and Intracelnce, their role in the control of cellular ion homeostasis and their mode of operation remain to be answered. For instance, a) what is the prevailing mode, forward or reverse, of the antiporter in a particular cell? b) can Na.-Ca. exchange be activated in both modes depending on the ionic balance an

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Regulation of Intracellular Calcium in Cultured Renal Epithelioid (MDCK-) Cellslular mechanisms and ion channels involved, we have studied the activation of ion channels by epinephrine, bradykinin and ATP in Madin Darby canine kidney (MDCK-) cells [13], a permanent cell line from dog kidney. Chloride secretion in MDCK-cell monolayers has been shown to be stimulated by epinephr

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https://doi.org/10.1007/978-3-663-07916-3and the Ca. concentration of the extracellular milieu is approximately 10. M. Consequently there is a very large electrochemical gradient for Ca. ions across the plasma membrane of the cell. This membrane is normally very impermeable to Ca.. The Ca. permeability of the plasma membrane can be rapidly