NADPH oxidase participates in pancreatic injury in rats with acute hypertriglyceridemic pancreatitis by regulating Akt/GSK3 β pathway / 中华急诊医学杂志

ABSTRACT

Objective To investigate the aggravation of pancreatic tissue injury in rats with acute hypertriglyceridemic pancreatitis and the possible role of NADPH oxidase(NOX).Methods Thirty SPF rats were randomly(random number)divided into five groups N group,H group,NLAP group,HLAP group and HAPO group.AMY,TG,TC and FFA levels were detected.The pathological changes of pancreas were observed under light microscope and the ultrastructural changes of pancreatic acinar cells were observed by TEM.Serum levels of MDA,SOD,LM-1β,TNF-α and LDH were detected.The expression of NOX4,p-Akt and p-GSK3β in pancreas was detected by immunofluorescence,and the expression of NF-κB and TNF-α in pancreas was detected by immunohistochemistry.Results Intraperitoneal injection of P-407 could significantly increase the levels of serum TG,TC and FF A in rats.After acute pancreatitis induced by L-Arg,the levels of serum AMY in the NLAP and HLAP groups were significantly increased,while Apocynin could significantly decrease the level of serum AMY.Compared with the NLAP group,the pathological injury of pancreatic tissue in the HLAP group was more serious,the level of inflammatoty mediators was significantly increased,and the cell necrosis was more serious.After inhibiting NOX,the activation of Akt/GSK3β pathway was regulated and the pancreatic injury was improved.Conclusion In HTGP,NOX aggravates pancreatic injury by regulating the activation of Akt/GSK3 β pathway.Inhibition of NOX expression can play a protective role in pancreas injury of HTGP..