Isoliquiritigenin inhibits apoptosis and ameliorates oxidative stress in rheumatoid arthritis chondrocytes through the Nrf2/HO-1-mediated pathway oleh Shih-Ya Hung, Jen-Lung Chen, Yuan-Kun Tu, Hsin-Yi Tsai, Pin-Hsuan Lu, I.-Ming Jou, Lulekiwe Mbuyisa, Ming-Wei Lin