Experimental Physiology
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Experimental Physiology 75.2 pp 263-266
© The Physiological Society 1990
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Experimental Physiology, Vol 75, Issue 2, 263-266
Copyright © 1990 by The Physiological Society

Article

Histamine-evoked amylase secretion is associated with small changes in calcium mobilization in isolated guinea-pig pancreas

G Salido, R Lennard, J Singh, and JA Pariente

An investigation was made of the effect of histamine on amylase secretion and calcium mobilization in isolated guinea-pig pancreatic segments. The effect of acetylcholine (ACh) was also examined for comparison. Histamine evoked a dose-dependent increase in amylase output from superfused segments. It had small transient effects on both 45Ca influx and efflux, and elevated cytosolic free Ca2+ concentration in acini. The equivalent dose of ACh evoked a greater amylase output and greater changes in Ca2+ mobilization. The results suggest that histamine may have a physiological role in exocrine secretion of the guinea-pig pancreas but is less potent than ACh.


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 Am. J. Physiol. Gastrointest. Liver Physiol.Home page
T. D. Nguyen, C. N. Okolo, and M. W. Moody
Histamine stimulates ion transport by dog pancreatic duct epithelial cells through H1 receptors
Am J Physiol Gastrointest Liver Physiol, July 1, 1998; 275(1): G76 - G84.
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