The present study sought to understand the mechanisms of attenuation of severe acute pancreatitis (SAP) by resveratrol (RES). SAP was experimentally induced in rats by injection of 4% sodium taurocholate in the retrograde pancreatic duct. Three study groups were evaluated: Group I (sham-operated animals), Group II (SAP animals), and Group III (SAP animals treated with RES at 20 mg/kg/body weight, 5 min after induction of SAP). The study outcomes were histopathologic changes and alterations in biochemical markers: plasma renin activity and levels of angiotensin II, endothelin, and nitric oxide in plasma. Biochemical markers were evaluated at 3, 6, and 12 h after induction of SAP. SAP was associated with significant (p < 0.05) histopathologic changes (saponification spots in the intraperitoneal cavity, severe pancreatic edema, blood congestion, varying degrees of necrosis, etc.), as well as with elevation of biochemical markers in blood plasma. RES treatment significantly (p < 0.05) attenuated changes of both histopathologic and biochemical markers induced by SAP. In conclusion, this study provides evidence that RES treatment is a promising therapeutic approach to suppress microcirculatory disturbance in SAP.
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