The influence of pioglitazone on basal gastric acid secretionin omeprazole-treated rats

Abstract

In the experiment on rats it was shown that a daily injection of omeprazole (14 mg/kg, i.p.) during 28 days evoked the increase of gastrin plasma level by 189.3% (p<0.05). As a result, gastric mucosal hypertrophy was developed. Therefore, we can see the rise of gastric acid output by 283.7% (p<0.01). In rats in 28 days of combined treatment of peroxisome proliferator-activated receptors ligand pioglitazone (30 mg/kg, i.p.) and omeprazole gastric acid output was diminished by 53.4% in comparison to rats after 28 days of isolated omeprazole injection. But pioglitazone did not influence augmentation of gastrin plasma level evoked by omeprazole. Thus, the compensatory effect of pioglitazone on gastric acid secretion may indicate retardation of mucosal hypertrophy process evoked by hypergastrinemia.

PDF

References

1. Demetri G. D., Fletcher C. D., Mueller E. et al.: Induction of solid tumor differentiation by the peroxisome proliferator-activated receptor-gamma ligand troglitazone in patients with liposarcoma. Proc. Natl .Acad. Sci. U.S.A., 96 (7), 3951, 1999.

2. Elnem r A., Ohta T., Iwata K. et al.: PPARgamma ligand (thiazolidinedione) induces growth arrest and differentiation markers of human pancreatic cancer cells. Int. J. Oncol., 17 (6), 1157, 2000.

3. Fukui H., Kinoshita Y., Maekawa T. et al.: Regenerating gene protein may mediate gastric mucosal proliferation induced by hypergastrinemia in rats. Gastroenterology, 115 (6), 1483, 1998.

4. Ghosh M. N., Shild H. O.: Continuous recording of acid gastric secretion in the rat. Br. J. Pharmacol., 13, 1958.

5. Larsson H., Carlsson E., Ryberg B. et al.: Rat parietal cell function after prolonged inhibition of gastric acid secretion. Am. J. Physiol., 254 (1), G33, 1988.

6. Mueller E., Sarraf P., Tontonoz P. et al.: Terminal differentiation of human breast cancer through PPAR gamma. Mol. Cell., 1 (3), 465, 1998.

7. Nakajima T., Konda Y., Izumi Y. et al.: Gastrin stimulates the growth of gastric pit cel precursors by inducing its own receptors. Am. J. Physiol. Gastrointest. Liver Physiol., 282 (2), G359, 2002.

8. Nomura S., Nakajima A., Ishimine S. et al. Differential expression of peroxisome proliferator-activated receptor in histologically different human gastric cancer tissues. J. Exp. Clin. Cancer Res., 25 (3), 443, 2006.

9. Socia E., Capella C., Flocca R. et al.: Gastric argyrophil cancinoidosis in patients with Zollinger Ellison syndrome due to type I multiple endocrine neoplasia: A newly recognized association. Am. J. Surg. Pathol., 14, 503, 1990.

10. Tsyryuk O. I., Voronina O. I., Ovcharic T. V. et al.: The influence of different duration hypergastrinemia on structure functional state of gastric mucosa in rats Abstract of international conference “The mechanisms of functions of physiological systems”, С.152, Lviv 2006.

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 Unported License.

Copyright (c) 2009 Authors

Downloads

Download data is not yet available.