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Biochem Biophys Res Commun. 1989 Feb 15;158(3):863-9.

Secretagogue induced calcium mobilization in single pancreatic acinar cells.

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1
Department of Physiology, University of Michigan, Ann Arbor 48109.

Abstract

Microspectrofluorometry of fura-2 was utilized to monitor [Ca2+]i in single acinar cells stimulated with a cholinergic agonist and cholecystokinin. A similar amplitude of agonist induced Ca mobilization between single cell and populational approaches was observed. New findings in single cells not observable in populations of cells include: 1) the maintenance of a sustained elevation in [Ca2+]i above basal levels throughout agonist application, 2) the reloading of the agonist-sensitive Ca pool only following removal of the agonist and 3) the presence of oscillations of [Ca2+]i in response to agonist application which is enhanced at lower agonist concentrations.

PMID:
2920043
[Indexed for MEDLINE]
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