Fig. 1

Psoralen alleviated HG-induced viability decrease in HK-2 cells. a HK-2 cells were treated with 30 mM glucose. Cell viability was measured at 0, 24, 48, 72 h. b Different concentrations (0, 5, 10, 20, 40 μM) of psoralen were used to treat HK-2 cells. Cell viability was evaluated at 48 h. c HK-2 cells were exposure to 30 mM glucose and 10 μM psoralen for 48 h, cell viability was evaluated by CCK-8. **P < 0.01 compared with control group; ^##P < 0.01 compared with HG group