• 1. The Key Laboratrary of The Special Environment of Xinjiang, Experimental Animal Institute, Urumuqi General Hospital of Lanzhou Military Region, Urumuqi 830000, Xinjiang Uygur Autonomous Region, China;
  • 2. General Surgery, Second People's Hospital of Liangshan Prefecture, Xichang 615000, Sichuan Province, China;
LIUJiang-wei, Email: ljw273@sohu.com
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Objective To investigate the effects of curcumin on expression of iNOS mRNA, study the protective and therapeutic effects on rats with severe acute panceratitis associated renal injury, and explore the possible mechanisms. Methods A total of 24 rats were randomly divided into control group (n=8), severe acute panceratitis with renal injury group (injury group, n=8), and curcumin-treated group (treated group, n=8).The rats of control group and injury group were given 1.5 mL saline through intragastric administration at 3 h before operation, while the rats of treated group were fed with same amount of curcumin diluent at 3 h before operation.The rats of injury group and treated group with pancreatic head clamping method to establish the model of severe acute pancreatitis.At 12 h after modeling, rats in control group and injury group were perfused with 1.5 mL saline, and rats in treated group were intragastrically administrated to the same volume of curcumin diluent.All the rats were sacrificed at 18 h after modeling.The levels of serum amylase, creatinine, and blood urea nitrogen were detected and pathological chang of pancreas and the left kidney were observed under light microscope.The renal cell apoptosis were analyzed using TUNEL staining in three groups.The serum levels of interleukin-1β(IL-1β), interleukin-6 (IL-6), and interleukin-10 (IL-10) in three groups were detected by enzyme-linked immunosorbert assay (ELISA).The expressions of inducible nitric oxide synthase (iNOS) mRNA in the right kidney were detected with realtime polymerase chain reaction (RT-PCR) in three groups. Results Compared with the control group, the levels of serum amylase, creatinine, blood urea nitrogen, IL-1β, IL-6, and IL-10, the cell apoptosis and the expressions of iNOS mRNA in injury group and treated group were significantly increased (P < 0.05).In the treated group, the level of IL-10 was higher than the injury group (P < 0.05), and the difference of other indexes were lower than the injury group (P < 0.05). Conclusions Curcumin has a better protective effect on severe acute pancreatitis associated renal injury.It may be through inhibited the expressions of IL-1βand IL-6, stimulated the expression of IL-10, and down-regulation of iNOS mRNA expression to reduce the generation of oxygen free radicals and NO damage to cell and reducing the cell apoptosis and necrosis of kidney.

Citation: LIZhi-ling, ZHANGDong, LIUJiang-wei, WANGHao, LIRui, LIJian-ying. Effects of Curcumin on Expression of iNOS and Investigation The Protective Effects on Rats with Severe Acute Panceratitis Associated Renal Injury. CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY, 2015, 22(4): 412-417. doi: 10.7507/1007-9424.20150110 Copy

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