Abstract
The effects of different doses of (Asu1,7) eel-calcitonin, iv injected, on gastric secretion were studied in conscious rats with pyloric occlusion. Moreover, we evaluated the activity of this analogue on gastric ulcer formation by restraint stress. It was found that 2.5 or 5 Ul/kg (Asu1,7) eel-calcitonin decreased gastric acid secretion and inhibited the development of stress-induced ulcers in rats. In the isolated rat stomach the peptide at the concentrations of 1 nM to 1 μM did not modify acetylcholine, histamine or 5-hydroxytriptamine-induced contractions. These results suggest that this peripheral activity of (Asu1,7) eel-calcitonin does not involve a direct interference with cholinergic, histaminergic or serotonergic pathways at gastric level.
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Copp D.H., Cameron E.C., Cheney B.A., Davison A.G.F., Henze K.G. Evidence for calcitonin — a new hormone from the parathyroid that lowers blood calcium. Endocrinology 70: 638, 1962.
Galan-Galan F., Rogers H., Girgis S.L., Mc Intyre I. Immunoreactive calcitonin in the central nervous system of the pigeon. Brain Res. 272: 59, 1981.
Rizzo A.J., Goltzaman D. Calcitonin receptors in the central nervous system of the rat. Endocrinology 108: 1672, 1981.
Olgiati A.S., Guidobono F., Netti C., Sibilia V., Pecile A. Calcitonin and pituitary secretion. In: Albertini A., Ekins R. (Eds.), Monoclonal antibodies and developments in immunoassay. Elsevier, North-Holland, Biomedical Press, Amsterdam, 1981, p. 343.
Clementi G., Nicoletti F., Patacchioli F., Prato A., Patti F., Fiore C.E., Matera M., Scapagnini U. Hypoprolactinemic action of calcitonin and tubeinfudibular dopaminergic system. J. Neurochem. 40: 885, 1983.
Rapisarda E., Clementi G., Fiore L., Prato A., Ceravolo A., Raffaele R., Scapagnini U. Effect of calcitonin on ACTH secretion. Pharmacol. Res. Commun. 16: 12, 1984.
Leicht E., Biru G., Weinges K.F. Inhibition of releasing hormone induced secretion of TSH and LH by calcitonin. Horm. Metab. Res. 6: 410, 1974.
Pecile A., Ferri S., Santagostino A., Olgiati V.R. Effect of intracerebroventricular calcitonin in the conscious rabbit. Experientia 31: 332, 1975.
Freed W.J., Perlow M.J., Wyatt R.J. Calcitonin: inhibitory effect on eating in rats. Science 206: 850, 1979.
Morley J.E., Levine A.S. Intraventricular calcitonin inhibits gastric acid secretion. Science 214: 671, 1981.
Bueno L., Fioramonti J., Ferré J.P. Calcitonin — CNS action to control the pattern of intestinal motility in rats. Peptide 4: 63, 1983.
Chiba T., Taminato T., Kadowaki S., Goto Y. Mori K., Seino Y., Abe H., Chihara K., Matsukura S., Fujita T., Kondo T. Effects of (Asu1,7) eel-calcitonin on gastric somatostatin and gastrin release. Gut 21: 94, 1980.
Dai S., Ongle C.W. A new method for the collection of gastric secretion in conscious rats. Pfluegers Arch. 336: 111, 1972.
Dai S., Ongle C.W. A simple method for the production of peptidic ulceration in the rat. Life Sci. 72: 505, 1973.
Dai S., Ongle C.W. Gastric ulcers induced by acid accumulation and by stress in pylorus-occluded rats. Eur. J. Phatmacol. 26: 15, 1974.
Williams R.H. Gastrointestinal Hormone. In: Williams R.H. (Ed.), Textbook of endocrinology, ed. 6. W.B. Saunders Co., Philadelphia, 1981, p. 693.
Clementi G., Amico-Roxas M., Caruso A., Fiore C.E., Trombadore S., Scapagnini U. Effect of (Asu1,7) eel-calcitonin, synthetic analogue of eel-calcitonin, on pain. Pharmacol. Res. Commun. 17: 10, 1985.
Otani M., Kitizawa S., Yamauchi H., Meguro T., Orino H. Stability of the biological activity of eel-calcitonin in rats. Horm. Metab. Res. 10: 252, 1978.
Levine R.J., Senay E.C. Studies on the role of acid in the pathogenesis of experimental stress ulcers. Psychosom. Med. 32: 61, 1970.
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Clementi, G., Prato, A., Rapisarda, E. et al. Inhibition of restraint stress by systemic (Asu1,7) eel-calcitonin. J Endocrinol Invest 8, 543–546 (1985). https://doi.org/10.1007/BF03348558
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DOI: https://doi.org/10.1007/BF03348558