Entero-oxyntin is a hormone released from intestinal endocrine cells which stimulates gastric acid secretion in the stomach. It has been isolated from animals[1] and is hypothesised to exist in humans.

References

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  1. ^ Walker WA, Strodel WE, Eckhauser FE, Heldsinger A, Vinik AI. J Surg Res. 1983 May;34(5):486-92., Enterooxyntin release from isolated perfused canine jejunum.