The effect of synthetic human gastrin, pentagastrin, caerulein, pancreozymincholecystokinin (PZ-CCK), and secretin on salivary secretion was tested in dogs with salivary and denervated gastric fistulas. No changes were observed in salivary output. No effect on salivary volume or protein output was found using dosages of the agents which significantly altered gastric-acid output. We conclude that gastrin, PZ-CCK, and secretin are not involved in the physiological control of salivation.
Clendinnen BG, Reeder DD, Davidson WD, Thompson JC. Effect of Gastrointestinal Hormones on Salivation in the Dog. Arch Surg. 1970;101(5):596-598. doi:10.1001/archsurg.1970.01340290052011