Sinusoidal oscillations in intracellular calcium requiring negative feedback by protein kinase C.


Stimulation of mouse lacrimal acinar cells with submaximal concentrations of the muscarinic agonist, methacholine, resulted in an increase in intracellular calcium ([Ca2+]i), which took the form of sinusoidal oscillations. These oscillations were relatively constant (approximately 4-5/min) regardless of the methacholine concentration, suggesting that the… (More)


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