Fig. 7From: Pretreatment of nucleus pulposus mesenchymal stem cells with appropriate concentration of H2O2 enhances their ability to treat intervertebral disc degenerationSignalling pathway involved in H2O2 regulation of cell proliferation, oxidative stress, and cell apoptosis in NPMSCs. The optimal concentration of H2O2 was 75 μM; the lethal concentration of H2O2 was 300 μM. Up arrow: upregulation. Down arrow: downregulationBack to article page