Release of cholecystokinin and gallbladder contraction before and after gastrectomy.

摘要: The contraction of the gallbladder by ultrasonography and release cholecystokinin (CCK) specific radioimmunoassay in response to ingestion oral fatty meal before 1 month after gastrectomy five patients with early gastric cancer was studied. Before gastrectomy, basal concentrations CCK (13.4 +/- 2.3 pmol/L) rose significantly a maximum 23.3 3.6 pmol/L at 20 minutes meal, remained elevated during study. Gallbladder began as rose, demonstrating significant correlation plasma CCK. One showed rapid greater attaining 53.7 7.3 10 minutes, then gradually falling level. maximal almost same (62.7 4.0% original area), showing CCK, but refilling induced earlier corresponding reduction Simultaneous measurement pancreatic polypeptide revealed fairly similar gastrectomy. is chief mechanism which causes even well