Fig. 3From: Brazilian green propolis water extract up-regulates the early expression level of HO-1 and accelerates Nrf2 after UVA irradiationNrf2 nuclear translocation was accelerated following treatment with WEP after UVA irradiation at 6 h after UVA irradiation. Immunostaining for Nrf2 in NB1-RGB cells at (a) 3, (b) 6 h after UVA irradiation showed changes induced by UVA irradiation and WEP treatment. Cells were fixed and stained with Hoechst33342 (blue) and anti-Nrf2 antibody (green). WEP was applied at a concentration of 30 μg/mL. White arrows indicate nuclear translocation of Nrf2; scale bar, 50 μmBack to article page