| The claims for Secretogen are based on the physiologic action of secretin as described by various observers. |
| The duodenum is important in the secretion of a number of hormones, including secretin, cholecystokinin, and enteroglucagon. |
| This study adds to the body of work that has shown that secretin is not effective in the treatment of autistic symptoms. |
| A report from parents of a child suggested that secretin might improve the symptoms of autism. |
| One such intervention involves the intravenous injection of secretin, a gastrointestinal polypeptide. |
| Another hormone from the small intestine, cholecystokinin, works similarly to secretin. |
