Its existence was first suggested in 1905 by the British physiologist John Sydney Edkins, and gastrins were isolated in 1964 by Hilda J. Tracy and Roderic Alfred Gregory at the University of Liverpool.
A súa existencia foi suxerida por primeira vez en 1905 polo fisiólogo británico John Sydney Edkins, e as gastrinas foron illadas en 1964 por Roderic Alfred Gregory e H. J. Tracy na Universidade de Liverpool.