Figure 2

Effect of long-term cryopreservation on Fpg-sensitive sites in PBMCs (a) and WB (b). T0 refers to fresh samples that have been processed in the comet assay without cryopreservation. T2-T12 are samples that have been cryopreserved between 2 and 12 months. Data are reported as mean ± standard deviation (SD); PBMCs peripheral blood mononuclear cells, WB whole blood. a,b,c,dData with different letters are significantly different (p < 0.05).