Figure 7. The correlation between Nrf2 and age in granular cells. (A) The relative mRNA levels of Nrf2 were determined by RT-qPCR in control and old granular cells. mRNA levels in control granular cells were set to 1. Data are expressed as the mean ± SD. (B) The relative mRNA level of Nrf2 was determined by RT-qPCR in young (22-35 years) and old (36-49 years) ovarian granular cells. Data are expressed as the mean ± SD, *P<0.05 vs. young group. (C) Analysis of correlation between Nrf2 expression and age in human ovarian granular cells. R=-0.5972.