Abstract
The influence of COX-2 inhibitor celecoxib and proton pump blocker lansoprazole on lipoperoxidation, antioxidation defense and the content of nitrogen oxide in rats’ gastric mucosa and heart tissue with streptosotocin diabetes was studied. The obtained results showed that lipoperoxidation processes were activated in diabetic animals and the activity of antioxidation protection enzymes increased. Inhibition of prostaglandins synthesis by COX-2 decreased oxidative stress in both investigated tissues. Proton pump blockage led to a sharp increase of NO content in heart tissue and a decrease of MDA content in gastric mucosa.
References
1. Basu S., Larsson A., Vessby J. et. al. Type 1 Diabetes Is Associated With Increased Cyclooxygenase- and Cytokine-Mediated Inflammation. Diabetes Care, 28, 1371, 2005.
2. Chaiamnuay S., Allison J. J., Cur t is J. R.: Risks versus benefits of cyclooxygenase-2-selective nonsteroidal anti-inflammatory drugs. American Journal of HEALTH-System Pharmacy, 63 (19), 1837, 2006.
3. FedorchenkoIu L.: Status of intragastric acidity in diabetes mellitus patients with chronić gastroduodenal ulcers. Exp. Klin. Gastroenterol, (6), 26, 2002.
4. Fomenko I., Bondarchuk T., Sklyarov A.: The relationship between action of proton pump inhibitors and COX-inhibitors on oxidative stress in stomach and heart tissue: Gut. An International Journal of Gastroenterology and Hepatology, 39 (1), 231, 2007.
5. Koroluk M. A. et al.: A method for measuring catalase activity. Laboratornoje Delo, 1, 16, 1988.
6. Lyall F. et al.: Nitric oxide concentration are increased in the fetoplacental circulation in preeclampsia. Am. J. Obstet. Gynecol., 173: 714 , 1995.
7. Maritim A.C., Sanders R. A., Watkins J. B.: 3rd. Diabetes, oxidative stress, and antioxidants: a review. J. Biochem. Mol. Toxicol.: 17(1), 24, 2003.
8. Sandstrom J., Nilsson P., Karlsson R. et al.: 10-Told increase in human plasma extracellular superoxide dismutase content caused by amutation in heparin-binding domain. J. Biol. Chem., 269, 29, 19163, 1994.
9. Schildrkneht S., Bachscmid M., Bauman A., Ullrich V.: COX-2 inhibitors selectively blok prostacyclin synthesis in endotoxin-exposed vascular smooth muscle cells. The FASEBJ., 1, 757, 2004.
10. Timirbulatov R. A.: Method for increasing intensity of free radical oxydation of blood lipid containing components and its diagnostic. Laboratornoje Delo, 4, 209, 1981.
11. Traub O., Van Bibber R.: Role of nitric oxide in insulin-dependent diabetes mellitus-related vascular complications. West J. Med., 162(5), 439, 1995.
12. Vincent A. M., Russel J. W., Low Ph., Feldman E. L.: Oxidative Stress in the Pathogenesis of Diabetic Neuropathy. Endocrine Reviews, 25(4), 612, 2004.

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