Fig. 1From: A hypothesis of couplet molecules and couplet cells in gastric function and an association with Helicobacter pylori The Simple Interaction of a G-Cell and an ECL Cell. The reciprocal interactions of a G-Cell and an ECL Cell (GC and ECLC) are illustrated. The stimulatory effects of Gastrin (GAS) and Histamine (HTM) occur by acting via cell membrane receptors GASR and HTMRBack to article page