Abstract
Background: The therapeutic effects of octreotide in acute hemorrhagic necrotizing pancreatitis (ANP) have always been considered to be due to the inhibition of the exocrine pancreatic secretion in order to reduce pancreatic autodigestion. In this experimental study we analyzed whether octreotide has also antioxidative effects on acute pancreatitis. Methods: 40 male Wistar rats were randomized into four groups (n = 10). Group 1 underwent a laparotomy. Groups 2–4 received an injection of natrium taurocholate into the pancreatic duct to induce acute pancreatitis. One hour later group 2 was injected 1 ml NaCl solution intraperitoneally, while groups 3 and 4 received 0.1 or 0.2 mg octreotide, respectively. The severity of ANP was examined histologically. The lipid peroxide level as well as the activity of glutathione peroxidase and superoxide dismutase were measured in plasma and pancreatic tissue samples. Results: High-dose octreotide decreased the lipid peroxide level in plasma (2.1 ± 0.53 vs. 4.69 ± 1.35 nmol/l; p < 0.05) and pancreatic tissue samples 4.67 ± 1.37 vs. 13.20 ± 2.93 nmol/ml; p < 0.05) compared to the pancreatitis control group. Low-dose octreotide, however, did not reduce lipid peroxidation. Conclusion: Octreotide seems to have a dose-dependent antioxidative effect in natrium taurocholate-induced pancreatitis in rats.
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