Abstract

The relationships between molecular forms of gastrin in dog antral mucosa and those in plasma were examined by radioimmunoassay using two regionspecific antisera, and by gel filtration. One antiserum reacts only with intact G-17, the other is Cterminal specific and reacts with G-17, G-34 and their C-terminal fragments. Antral extracts contained predominantly G-17-like immunoreactivity. However, when release of gastrin in conscious or anesthetized dogs was stimulated by feeding, electrical vagal stimulation, instillation of liver extract into the stomach, or by cholinergic drugs,

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