Abstract
Calcium ions are thought to mediate hormonal and cholinergic stimulation of exocrine pancreatic secretion. In order to further eludicate the role of calcium ions in stimulus-secretion coupling of the pancreas, the effect of the calcium antagonist verapamil, which inhibits transmembrane calcium influx, was studied on pancreatic secretion in 35 healthy male volunteers. Every subject had two stimulation periods of 2 hr each with a 3-hr period between the two. Pancreatic secretion was stimulated by cholecystokinin in 12 subjects, by secretin in 14 subjects, and by sham feeding in 6 subjects. Three subjects were studied without any secretory stimulus. Verapamil as an intravenous bolus of 150 μg/kg followed by an intravenous infusion of 150 μg/kg/hr or saline were given during the two 2-hr stimulation periods in a randomized order. The pancreatic secretory responses to stimulation by cholecystokinin, secretin, or sham feeding, as well as the basal pancreatic secretion without a secretory stimulus were left unaffected by verapamil when compared to the saline control. The results, therefore, call into question the hypothesis that transmembrane calcium influx is a major mediator of pancreatic secretion in response to hormonal or cholinergic stimulation in man.
Similar content being viewed by others
References
Case R, Blausen T: The relationship between calcium exchange and enzyme secretion in the isolated rat pancreas. J Physiol 235:75–102, 1973
Gardner JC, Conlon TP, Klaeveman HL, Adams TD, Ondetti MA: Action of cholecystokinin and cholinergic agents on calcium transport in isolated pancreatic acinar cells. J Clin Invest 56:366–375, 1975
Kondo S, Schulz I: Calcium ion uptake in isolated pancreas cells induced by secretagogues. Biochim Biophys Acta 419:76–92, 1976
Schulz I, Milutinovic S, Heil K: The role of calcium and cyclic nucleotides in stimulus-secretion coupling.In Molecular Biology and Pharmacology of Cyclic Nucleotides. G Folco, R Paoletti (eds). Amsterdam, North-Holland, Elsevier Biomedical Press, 1978, pp 237–250
Singh M: Amylase release from dissociated mouse pancreatic acinar cells stimulated by glucagon: Effect of membrane stabilizers. J Physiol 302:81–91, 1980
Williams JA: Regulation of pancreatic acinar cell function by intracellular calcium. Am J Physiol 238:G269-G279, 1980
Hotz J, Minne H, Ziegler R: The influences of acute hyperand hypocalcemia and of calcitonin on exocrine pancreatic function in man. Res Exp Med 160:152–165, 1973
Goebell H, Steffen CH, Baltzer G, Bode CH: Stimulation of pancreatic secretion of enzymes by acute hypercalcemia in man. Eur J Clin Invest 3:98–104, 1973
Tiscornia O, Palasciano G, Dzieniszewski J, Verine H, Sarles H: Analysis of the mechanism of action of calcium-induced exocrine pancreatic secretory changes in the dog. Am J Gastroenterol 63:293–298, 1975
Malagelada JR, Holtermueller KH, Sizemore GW, Go VLW: The influence of hypercalcemia on basal and cholecystokinin-stimulated pancreatic, gallbladder, and gastric functions in man. Gastroenterology 71:405–408, 1976
Fleckenstein A: Pharmacology and electrophysiology of calcium antagonists.In Experience with Verapamil. A Zanchetti, DM Krikler (eds) Amsterdam, Exerpta Medica, 1980, pp 10–29
Eto S, McMillin Wood J, Hutchins M, Fleischer N: Pituitary45C++ and release of ACTH, GH, and TSH: Effect of verapamil. Am J Physiol 226:1315–1320, 1974
Malaisse WJ, Herchuelz A, Levy J, Sener A: Calcium antagonists and islet cell function—III. The possible site of action of verapamil. Biochem Pharmacol 26:735–740, 1977
De Marinis I, Parbarino A: Calcium antagonists and hormone release I. Effects of verapamil on insulin release in normal subjects and patients with islet cell tumor. Metabolism 29:599–603, 1980
Dominic JA, Miller RE, Anderson J, McAllister RG: Pharmacology of verapamil. II. Impairment of glucose tolerance by verapamil in the conscious dog. Pharmacology 20:196–205, 1980
Kierkegaard P, Christiansen J, Petersen B, Skovolsen P: Calcium and stimulus-secretion coupling in gastric fundic mucosa. Effect of inhibition of calcium transport by verapamil on gastric acid secretion in the isolated guinea pig fundic mucosa and in healthy subjects. Scand J Gastroenterol 17:533–538, 1982
Sonnenberg A, Kurosinski I, Eckhardt U, Scholten T: Verapamil inhibits gastric secretion stimulated by pentagastrin. Gastroenterology 84:A1316, 1983
Gersten M, Bank S, Burns G, Stein T, Zimmermann H: The effect of verapamil on pancreatic exocrine secretion. Gastroenterology 84:A1163, 1983
Newman J, Lewis BG, Swierczek JW, Sakamoto T, Townsend CM, Thompson JC: The effect of graded doses of verapamil on pancreatic exocrine secretion in awake dogs. Gastroenterology 84:A1259, 1983
Defilippi C, Solomon TE, Valenzuela JE: Pancreatic secretory response to sham feeding in humans. Digestion 23:217–223, 1982
Malawer SJ, Powell DW: An improved turbidimetric analysis of polyethylene glycol utilizing an emulsifier. Gastroenterology 53:250–256, 1967
Erlanger VF, Kokowsky N, Cohen W: The preparation and the proper ties of two new chromogenic substrates for trypsin. Arch Biochem 95:271–278, 1961
Nagel W, Willig F, Peschke W, Schmidt JH: Ueber die Bestimmung von Trypsin und Chymotrypsin mit Amino-p-nitroaniliden. Z Physiol Chem 340:1–10, 1965
Haegele EO, Schaich E, Rauscher E, Lehmann P, Grassl M: Action pattern of human pancreatic alpha-amylase on maltoheptaose. J Chromatogr 223:69–84, 1081
Lagerlof HO: Pancreatic function and disease. Acta Med Scand Suppl 128:1–13, 1942
Sung RJ, Meyerburg RJ, El-Sherif N, McAllister RG, Elser B, Castellanos A: Termination of supraventricular tachycardia by verapamil in man. Correlation of plasma drug levels with intracardiac electrophysiologic studies. Circulation (Suppl 2) 58:177, 1978
Eichelbaum M, Albrecht M, Kliems G, Schaefer K, Somogyi A: Influence of mesocaval shunt surgery on verapamil kinetics, bioavailability and response. Br J Clin Pharmacol 10:527–530, 1980
Clain JE, Barbezat GO, Marks IN: Exocrine pancreatic enzyme and calcium secretion in health and pancreatitis. Gut 22:355–358, 1981
Regan PT, Malagelada JR, DiMagno EP: Duodenal calcium outputs in health and pancreatic disease. Gut 21:614–618, 1980
Author information
Authors and Affiliations
Additional information
The authors were supported by a grant of the Deutsche Forschungsgemeinschaft (DFG-Ni 224/1-1).
Rights and permissions
About this article
Cite this article
Niederau, C., Hellmann, A., Sonnenberg, A. et al. Effects of verapamil on exocrine pancreatic secretion in man. Digest Dis Sci 30, 72–77 (1985). https://doi.org/10.1007/BF01318374
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01318374