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  • Title: [Protective effect of phloroglucinol on renal ischemia and reperfusion injury].
    Author: Li G, Zhang HX, Wang YP, Zhang J, Hong K, Tian XJ, Ma LL.
    Journal: Beijing Da Xue Xue Bao Yi Xue Ban; 2015 Oct 18; 47(5):743-8. PubMed ID: 26474609.
    Abstract:
    OBJECTIVE: To investigate the effect and mechanisms of Phloroglucinol (PG) on renal ischemia and reperfusion injury (IRI). METHODS: Forty-eight male Wistar rats were divided into 3 groups (16 rats per group): sham operated, saline-treated I/R (I/R), and PG-treated I/R (PG). I/R model: After removing the right kidney, renal I/R injury was induced by clamping the left renal artery for 45 min followed by reperfusion. The rats were administered with PG (30 mg/kg, intraperitoneally) or saline 15 min before renal ischemia. The blood and kidneys were harvested 6 and 24 h after reperfusion. Renal function and histologic changes of serum creatinine (SCr) and blood urea nitrogen(BUN)were assessed. Malondialdehyde (MDA),catalase (CAT),superoxide dismutase (SOD), and glutathione peroxidase (GSH-Px)were measured. Nuclear factor-kapa B (NF-κB) and caspase-3 in the kidneys were also measured. RESULTS: SCr and BUN were (103.9±10.4) μmol/L and (15.2±1.0) mmol/L in I/R group, and (81.8±13.4) μmol/L and (11.5±1.2) mmol/L in PG group 6 h after reperfusion. SCr and BUN were (154.9±12.1) μmol/L and (28.1±1.4) mmol/L in I/R group, (103.8±5.9) μmol/L and (16.0±1.0) mmol/L in PG group 24 h after reperfusion.PG treatment significantly attenuated renal dysfunction and histologic damage caused by I/R injury (P<0.05).The I/R-induced elevation in kidney MDA level decreased, where as reduced kidney SOD,CAT and GSH-Px were increased. What is more, the apoptotic tubular cells, the levels of active caspase-3,and active nuclear factor kappa B dramatically decreased after PG treatment. CONCLUSION: PG protects murine kidney I/R injury by suppressing oxidative stress, inflammation, and cell apoptosis.
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