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Histidine-stimulated acid secretion in the conscious rat is mediated by amino acid uptake system N
R Dimaline1, M Wilkinson, S J Talbot
1MRC Secretory Control Research Group, University of Liverpool.
Experimental Physiology
|September 1, 1990
Abstract:
The characteristics of sodium-dependent, histidine-stimulated gastric acid secretion were studied in the conscious gastric-fistulated rat. Intragastric L-histidine, but not glutamine, asparagine, glutamic acid or glycine, stimulated acid secretion. The histidine-stimulated acid secretion was inhibited by the presence of glutamine or asparagine, but not by glutamic acid or glycine. The substitution of lithium for sodium in the gastric perfusate was tolerated. Together with previous data, the results indicate that an N-like amino acid uptake system mediates histidine-stimulated acid secretion in the conscious rat.