Figure 5. Protein levels of BER enzymes are decreased in aged rat lens. There were significant decreased in OGG1, APE1, and Polγ protein levels (0.46±0.01, p=0.003, n=3; 0.68±0.02, p=0.009, n=3;0.42±0.05, p=0.006, n=3,respectively) at 26 months when comparing to the 2 month old group (0.73±0.07, n=3; 0.99±0.004, n=3 and 1.00±0.18, n=3, respectively).