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. 1984 Dec;200(6):693–697. doi: 10.1097/00000658-198412000-00003

Plasma cholecystokinin response to a liquid fat meal in vagotomized patients.

W P Hopman, J B Jansen, C B Lamers
PMCID: PMC1250583  PMID: 6508396

Abstract

Since previous studies have suggested that in patients with truncal vagotomy (TV) the plasma cholecystokinin (CCK) secretion in response to nutrients is impaired, we have measured the plasma CCK response to a liquid fat meal (250 ml 20% Intralipid) in six patients with TV and pyloroplasty. We have compared the results with those obtained in eight normal subjects, six patients with duodenal ulcer, and eight patients with highly selective vagotomy (HSV). Plasma CCK concentrations were measured by a sensitive and specific radioimmunoassay employing antibody T204 directed against the sulphated tyrosine region of CCK. Basal plasma CCK concentrations were not significantly different among the four groups studied (2.1 +/- 0.4 pmol/l in normal subjects, 2.8 +/- 0.5 pmol/l in duodenal ulcer patients, 3.1 +/- 0.5 pmol/l in patients with TV, and 2.7 +/- 0.5 pmol/l in patients with HSV). The increments in plasma CCK after ingestion of the fat meal in patients with TV (15.7 +/- 3.1 pmol/l) and HSV (14.9 +/- 1.6 pmol/l) were significantly higher (p less than 0.01) than those in normal subjects (4.8 +/- 0.9 pmol/l) and in patients with duodenal ulcer (5.5 +/- 0.6 pmol/l). Similarly, the integrated plasma CCK secretions in patients with TV (554 +/- 139 pmol/l, 120 min) and in patients with HSV (876 +/- 132 pmol/l, 120 min) were significantly increased (p less than 0.05) compared to those in normal subjects (187 +/- 29 pmol/l, 120 min) and in patients with duodenal ulcer (264 +/- 35 pmol/l, 120 min). It is concluded that patients with TV and HSV show an increased plasma CCK secretion in response to a liquid test meal.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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