Abstract
Ginsenoside Rg3 (Rg3) is an adjuvant antitumor drug, while ginsenoside Re (Re) is an adjuvant antidiabetic drug. Our previous studies demonstrated that Rg3 and Re both have hepatoprotective effects in db/db mice. The present study aimed to observe the renoprotective effects of Rg3 on db/db mice, with Re as the control. The db/db mice were randomly assigned to receive daily oral treatment with Rg3, Re or vehicle for 8weeks. Body weight and blood glucose were examined weekly. Blood lipids, creatinine, and BUN were examined by biochemical assay. Hematoxylin and eosin and Masson staining were used for pathological examination. The expression of peroxisome proliferator‑activated receptor gamma (PPARγ) and inflammation and fibrosis biomarkers was examined by immunohistochemical and reverse transcription‑quantitative PCR. Although neither had a significant effect on body weight, blood glucose or lipids, Rg3 and Re were both able to decrease the creatinine and blood urea nitrogen levels of db/db mice to levels similar to those of wild type mice and inhibit pathological changes. The expression of PPARγ was upregulated and biomarkers of inflammation and fibrosis were downregulated by Rg3 and Re. The results showed that the potential of Rg3 as a preventive treatment of diabetic kidney disease was similar to that of Re.
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