Impaired secretin release in chronic alcoholic dogs.

Plasma immunoreactive secretin has been compared before and after stimulation by intraduodenal infusion of HCl in 3 dogs who had received 2 g-kg-1-day-1 alcohol for 3 years and 4 non-alcoholic control dogs. After HCl infusion, blood secretin was lower in chronic alcoholic animals than in controls. This decreased post-stimulation concentration of secretin in chronic alcoholic dogs was in contrast to the increased release of gastrin after a meal which has been previously described.