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11 October 2016 : Animal Research  

Prophylactic Administration of Silybin Ameliorates L-Arginine-Induced Acute Pancreatitis

Feyzullah UçmakABCDE, Nazım EkinBCEF, İbrahim İbiloğluBEF, Serkan ArslanEF, İbrahim KaplanBE, Ebubekir ŞenateşADEF

DOI: 10.12659/MSM.898014

Med Sci Monit 2016; 22:3641-3646


BACKGROUND: Oxidative stress have been shown to play a role in the pathogenesis of acute pancreatitis. The aim of this study was to investigate the potential effect of silybin, a potent antioxidant, on L-arginine-induced acute pancreatitis in an experimental rat model.

MATERIAL AND METHODS: Forty female Wistar Albino rats were divided into 5 groups as follows: Group 1 (C): control group (n=8), Group 2 (SL): silybin group (n=8), Group 3 (LA): acute pancreatitis group (n=8), Group 4 (SLLA): prophylaxis group (n=8), and Group 5 (LASL): treatment group (n=8). Group C (control) received 2 intraperitoneal (i.p.) injections of physiological saline at an interval of 1 h. Group SL received only a single i.p. injection of silybin. The SLLA group received a single i.p. injection of silybin before the induction of acute pancreatitis with L-arginine, whereas the LASL group received the same injection after the induction of acute pancreatitis with L-arginine. Pancreatic tissues were histopathologically examined. Levels of amylase and oxidative stress markers (total oxidant status and total anti-oxidant status) were determined in the blood samples. Oxidative stress index was calculated.

RESULTS: In comparison to the LA, the prophylaxis and treatment groups showed significant improvements in serum oxidative stress parameters (p=0.001 and p=0.005, respectively). Histopathological analysis showed that the treatment group had significant improvements in edema scores only (p=0.006), whereas the prophylaxis group had the same improvements in inflammation and necrosis scores as well as in total scores (p=0.004, 0.006, and 0.004, respectively).

CONCLUSIONS: When used for prophylactic rather than therapeutic purposes, silybin ameliorates serum oxidative stress parameters and improves histopathological results via its antioxidant and anti-inflammatory properties.

Keywords: Antioxidants - pharmacology, Arginine, Oxidative Stress - drug effects, Pancreatitis - prevention & control, Rats, Wistar, Silymarin - pharmacology

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750