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. 1995 Jan;36(1):17–21. doi: 10.1136/gut.36.1.17

Effect of predigested fat on intestinal stimulation of plasma cholecystokinin and gall bladder motility in coeliac disease.

W P Hopman 1, G Rosenbusch 1, M P Hectors 1, J B Jansen 1
PMCID: PMC1382346  PMID: 7890230

Abstract

Cholecystokinin (CCK) release and gall bladder emptying in response to a fatty meal are completely abolished in coeliac disease. To determine the effect of lipid digestion on CCK release and gall bladder motility, six patients with untreated coeliac disease and a flat jejunal mucosa were studied on two separate days. After an overnight fast, the plasma CCK concentration and gall bladder volume were measured before and at regular intervals after the intraduodenal instillation of 60 ml corn oil (triglycerides) incubated with 40 ml saline or with 40 ml bile and pancreatic juice. The mean (SEM) concentration of free fatty acids in the aqueous phase of corn oil after incubation with bile and pancreatic juice (predigested corn oil) was 78 (35) mM compared with 0.1 (0.1) mM in the aqueous phase of corn oil incubated with saline (undigested corn oil). Integrated plasma CCK in response to predigested corn oil was significantly greater than that in response to undigested corn oil (101 (18) pM. 80 min v-2 (9) pM.80 min; p < 0.005). Similarly, integrated gall bladder contraction in response to predigested corn oil was significantly larger than that after undigested corn oil (817 (210) ml. 80 min v-225 (243) ml. 80 min; p < 0.05). In contrast to undigested corn oil, corn oil that has been predigested with bile and pancreatic juice induces plasma CCK secretion and gall bladder contraction in patients with untreated coeliac disease, presumably by generating and rendering soluble lipolytic products.

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Selected References

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