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Endocrinology

Rapid Ca2+ uptake by SERCA pump controls insulin secretion amount

Published in Obesity and Diabetes Week, April 10th, 2006

Rapid Ca2+ uptake by SERCA pump limits the peak amplitude of depolarization-triggered [Ca2+]i rise and thus controls the amount of insulin secretion.

According to recent research published in the journal Endocrinology, "The exocytosis of insulin-containing granules from pancreatic beta-cells is tightly regulated by changes in cytosolic Ca2+ concentration ([Ca2+] i ). We investigated the role of the sarco-endoplasmic reticulum Ca2+-ATPase (SERCA) pump, Na+/ Ca2+ exchanger, and plasma membrane Ca2+-ATPase pump in the Ca2+ dynamics of single rat...

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