Fig. 2From: Baicalin inhibits IL-1β-induced ferroptosis in human osteoarthritis chondrocytes by activating Nrf-2 signaling pathwayBaicalin reduced IL-1 β-induced cellular iron concentration. Chondrocytes were stained with a Calcein-AM fluorescent probe for 30 min after treatment. Observed by confocal microscopy. A Calcein fluorescence represents intracellular iron levels, and quenching of calcein fluorescence determines iron uptake by chondrocytes. The relevant data was shown in (B). *P < 0.05; **P < 0.01Back to article page