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Chronic kidney disease (CKD) is a growing global public health issue. Ginsenoside Rg1 (Rg1) has favorable nephroprotective effects, but its role and mechanism in CKD need further investigation. Therefore, we observed the effect of Rg1 on the mouse kidneys after 21 days of low-dose lipopolysaccharide (LPS) exposure. Meanwhile, we investigated the protective mechanism of Rg1 in LPS-induced mesangial cells using the Nrf2 inhibitor ML385. We found that chronic exposure to LPS caused fibrosis in mouse kidneys, accompanied by AIM2 activation and oxidative stress imbalance; however, Rg1 restored the anomalies, accompanied by activation of Nrf2/HO-1 signaling. Finally, our in vitro studies revealed that Rg1′s nephroprotective effects could be inhibited by ML385, and Rg1 can bind Nrf2, suggesting that the protective effects of Rg1 may involve Nrf2 activation and then inhibition of the AIM2. Our study has significant implications for the prevention and treatment of kidney diseases, particularly those related to inflammation.
Ji et al. (Fri,) studied this question.