Summary
Glucagon was infused into conscious rats in doses of 10 to 80 μg/h for periods up to 24 h. The effect on the secretory process of the exocrine pancreas was studied in vitro using isolated pancreatic lobules. A pronounced inhibition of the rate of protein synthesis and discharge of stored and newly synthesized proteins combined with increased enzyme content in the pancreas were observed after 30 min infusion. This effect was absent after longer infusion periods of up to six hours. After 12 to 24 h infusions a marked degranulation and decrease in enzyme content was observed. While the rate of protein synthesis was not significantly enhanced, both the basal and stimulated discharge of enzymes from the pancreas were increased. The results suggest a biphasic response of the pancreas to prolonged glucagon infusion.
Similar content being viewed by others
References
Adler, G., Kern, H.F.: Regulation of exocrine pancreatic secretory process by insulin in vivo. Horm. Metab. Res. 7, 290–296 (1975)
Bernfeld, P.: Amylases, α and β. Meth. Enzymol. 1, 149–158 (1955)
Bieger, W., Martin-Achard, A., Bassler, M., Kern, H.F.: Studies on intracellular transport of secretory proteins in the rat exocrine pancreas. IV. Stimulation by in vivo infusion of caerulein. Cell Tiss. Res. 165, 435–453 (1976)
Condon, J.R., Knight, M., Day, J.L.: Glucagon therapy in acute pancreatitis. Brit. J. Surg. 60, 509–511 (1973)
Condon, R.E., Woods, J.H., Poulin, T.L., Wagner, W.G., Pissiotis, C.A.: Experimental pancreatitis treated with glucagon or lactated Ringer solution. Arch. Surg. 109, 154–158 (1974)
Dreiling, D.A., Janowitz, H.D.: The effect of glucagon on gastric secretion in man. Gastroenterol. 36, 580–581 (1959)
Dürr, H.K., Bode, J.Ch.: Klinik und Therapie der akuten Pankreatitis. Leber, Magen, Darm 6, 282–293 (1976)
Dyck, W.P., Janowitz, H.D.: Effect of glucagon on hepatic bile secretion in man. Gastroneterol. 60, 400–404 (1971)
Dyck, W.P., Rudick, J., Hoexter, B., Janowitz, H.D.: Influence of glucagon on pancreatic exocrine secretion. Gastroenterol. 56, 531–537 (1969)
Dyck, W.P., Texter, E.C., Lasater, J.M., Hightower, N.C.: Influence of glucagon on pancreatic exocrine secretion in man. Gastroenterol. 58, 532–538 (1970)
Ferner, H.: Das Inselsystem des Pankreas, pp. 96–101. Stuttgart: Georg Thieme 1952
Ferner, H.: Die Dissemination der Hodenzwischenzellen und der Langerhansschen Inseln als funktionelles Prinzip für die Samenkanälchen und das exokrine Pankreas. Z. mikr.-anat. Forsch. 63, 35–52 (1957)
Fujita, T., Yanatori, Y., Murakami, T.: Insulo-acinar axis, its vascular basis and its functional and morphological changes caused by CCK-PZ and caerulein. In: Endocrine gut and pancreas (T. Fujita, ed.), pp. 347–357. Amsterdam: Elsevier 1976
Glässer, A.G., Dorigotti, L., Vaghi, G.: Inhibitory activity of glucagon on caerulein exocrine stimu-lation, independent of hyperglycemia. Adv. exp. Med. and Biol. 21, 347–355 (1972)
Henderson, J.R.: Why are the islets of Langerhans? Lancet 1969 I, 469–470
Hummel, B.C.: A modified spectrophotometric determination of chymotrypsin, trypsin and thrombin. Canad. J. Biochem. 37, 1393–1399 (1959)
Iwatsuki, K., Ono, H., Hashimoto, K.: Effects of glucagon on pancreatic secretion in the dog. Clin. exp. Pharm. Physiol. 3, 59–65 (1976)
Jamieson, J.D., Palade, G.E.: Synthesis, intracellular transport and discharge of secretory proteins in stimulated pancreatic exocrine cells. J. Cell Biol. 50, 135–158 (1971)
Jarett, L.: In vivo and in vitro effect of glucagon on DL-leucine-1-C14 incorporation into protein of rat pancreas. Proc. Soc. exp. Biol. (N.Y.) 114, 550–554 (1963)
Jarett, L., Lacy, P.E.: Effect of glucagon on the acinar portion of the pancreas. Endocrinol. 70, 867–873 (1962)
Kasper, H., Fleischer, K.: Der Einfluß von Glukagon auf die Lipaseaktivität im Serum bei Pankreatitis. Dtsch. med. Wschr. 97, 1124–1126 (1972)
Knight, M.J., Condon, J.R., Smith, R.: Possible use of glucagon in the treatment of pancreatitis. Brit. med. J. 1971 II, 440–442
Kronborg, O., Jørgensen, P.M., Bülow, S.: A controlled randomized trial of glucagon in treatment of first attack of severe acute pancreatitis without associated biliary disease, interim report. Scand. J. Gastroent. 38, 1031 (1976)
Lankisch, P.G., Winckler, K., Bokermann, M., Schmidt, H., Creutzfeldt, W.: The influence of glucagon on acute experimental pancreatitis in the rat. Scand. J. Gastroent. 9, 725–729 (1974)
Lankisch, P.G., Winckler, K., Schmidt, H.: Glucagon-Behandlung der akuten Pankreatitis. Dtsch. med. Wschr. 100, 845–846 (1975)
Nakajima, S., Magee, D.F.: Inhibition of exocrine pancreatic secretion by glucagon and D-glucose given intravenously. Canad. J. Physiol. Pharmacol. 48, 299–305 (1969)
Necheles, H., Walker, L., Mabin, W.: Effects of glucagon on external secretion of the pancreas. Amer. J. Physiol. 191, 595–597 (1957)
Papp, M., Ribet, A., Fodor, I., Németh, P.E., Fehér, S., Horvath, J.E., Folly, G.: Glucagon treatment of experimental acute pancreatitis. Acta med. Sci. hung. 32, 105–116 (1975)
Richards, G.M.: Modifications of the diphenylamine reaction giving increased sensitivity and simplicity in the estimation of DNA. Analyt. Biochem. 57, 369–376 (1974)
Robinson, R.M., HarIis, K., Hlad, C.J., Jr., Eisemann, B.: Effect of glucagon on gastric secretion. Proc. Soc. exp. Biol. (N.Y.) 96, 518–525 (1957)
Samols, E., Marri, G., Marks, V.: Interrelationship of glucagon, insulin and glucose. Diabetes 15, 855–866 (1966)
Scheele, G.A., Palade, G.E.: Studies on the guinea pig pancreas. Parallel discharge of exocrine enzyme activities. J. biol. Chem. 250, 2660–2670 (1975)
Shaw, H.M., Heath, T.J.: The effect of glucagon on the formation of pancreatic juice and bile in the rat. Canad. J. Physiol. Pharmacol. 51, 1–5 (1973)
Söling, H.D., Unger, K.O.: The role of insulin in the regulation of α-amylase synthesis in the rat pancreas. Europ. J. clin. Invest. 2, 199–212 (1972)
Steffen, Ch., Goebell, H., Baltzer, G., Dürr, H.K.: Untersuchungen zum Hemmeffekt von Glukagon auf die Pankreassekretion des Menschen. Verh. dtsch. Ges. inn. Med. 78, 1423–1425 (1972)
Sweeting, J.G.: The effect of glucagon on bile and pancreatic juice. Gastroenterol. 54, 1276 (1965)
Verduin, P.A., Punt, J.M.M.M., Kreutzer, H.H.: Studies on the determination of lipase activity. Clin. chim. Acta 46, 11–19 (1973)
Waterworth, M.W., Barbezat, G.O., Bank, S.: Glucagon in treatment of acute pancreatitis. Lancet 1974 I, 1231
Youngs, G.: Hormonal control of pancreatic endocrine and exocrine secretion. Gut 13, 154–161 (1972)
Author information
Authors and Affiliations
Additional information
Dedicated to Professor Helmut Ferner, Vienna, Austria, on the occasion of his 65th birthday
Rights and permissions
About this article
Cite this article
Adler, G. Effect of glucagon on the secretory process in the rat exocrine pancreas. Cell Tissue Res. 182, 193–204 (1977). https://doi.org/10.1007/BF00220588
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00220588