Open AccessGastrin - Histamine as a Normal Sequence in Gastric Acid Stimulation in the Rabbit
Author(s) -
Elisabet Bergqvist,
Karl Johan Öbrink
Publication year - 1979
Publication title -
upsala journal of medical sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 41
eISSN - 2000-1967
pISSN - 0300-9734
DOI - 10.3109/03009737909179150
Subject(s) - histamine , gastrin , stimulation , g cell , endocrinology , medicine , secretion , enterochromaffin like cell , gastric acid , stomach , mediator , regulation of gastric function , stimulus (psychology) , psychology , psychotherapist
In a suspension of isolated gastric glands the effect of secretagogues on the oxyntic cells can only be detected by direct stimulation. An indirect stimulus like gastrin inducing one type of cell to liberate histamine which then acts on the oxyntic cells will not be detectable because of the very high dilution of the liberated substance. Thus the isolated gland preparation presents a means by which two steps in a sequential stimulation can be separated. There is no evidence that gastrin acts directly on the oxyntic cells but it does liberate histamine in a dose-effect relationship, which would in an intact stomach give histamine concentrations sufficient to effectively stimulate the acid secretion. Thus in the rabbit histamine seems to be a normal physiological mediator for gastrin stimulation.