The protective effect of resveratrol on lupus nephritis mice by up-regulating Sirt1.

Objectives: To investigate the therapeutic effect and protective mechanism of resveratrol (Res) on mice with lupus nephritis (LN). Materials and Methods: We used Res to intervene in MRL/lpr mice and employed biochemical techniques to assess kidney function, inflammation levels, and oxidative stress. We also evaluated changes in immune function and used immunohistochemistry to assess Sirt1 protein and mRNA expression. Results: Res improved the kidney function, alleviated proteinuria, and renal pathological damage in MRL/lpr mice. Res also ameliorated spleen weight and spleen index, and inhibited urinary protein/creatinine levels. Moreover, Res inhibited the expression of circulating inflammatory factors, oxidative stress levels, and kidney cell apoptosis in MRL/lpr mice. Res effectively promoted Sirt1 protein and mRNA expression in the kidneys of MRL/lpr mice. Conclusion: Res has a protective effect on MRL/lpr mice, and its mechanism may involve activation of the Sirt1 signaling pathway.