EM523L, a nonpeptide motilin agonist, stimulates gastric emptying and pancreatic polypeptide secretion.
H Okano, A Inui, N Ueno, S Morimoto, A Ohmoto, M Miyamoto, N Aoyama, Y Nakajima, S Baba, M Kasuga, Hiroyuki Okano, Akio Inui, Naohiko Ueno, Shinsuke Morimoto, Akiyoshi Ohmoto, Masaki Miyamoto, Nobuo Aoyama, Yoshito Nakajima, Shigeaki Baba, Masato Kasuga
We investigated the efficacy and the mechanism of action of EM523L, a nonpeptide motilin agonist (motilide), on the stimulation of gastric emptying and on the release of gut peptides after ingestion of a solid meat in normal controls (n = 8) and in diabetic patients (n = 8) with signs of neuropathy. A dose of 2 mg EM523L was administered IV over 15 min just after ingestion of a solid meal (200 kcal Gastric emptying was measured by a radionuclide technique. EM523L accelerated gastric emptying and markedly augmented postprandial pancreatic polypeptide (PP) response in both normal control and diabetic patients. This may suggest the mediation of the Vagal-cholinergic pathway to accelerate gastric emptying. The present study offers a promising therapeutic potential of the motilide in gastrointestinal motility disorders like those observed in diabetics mellitus.