Reference genes
β-actin	F: 5’ GCT CGT CGT CGA CAA CGG CTC 3’
	R: 5’ CAA ACA TGA TCT GGG TCA TCT TCT 3’
Target genes
OGG1	F: 5’ AAC ATT GCT CGC ATC ACT GGC 3’
	R: 5’ GAT GTC CAC AGG CAC AGC CTG 3’
SIRT1	F: 5’ TGC GGG AAT CCA AAG GAT AAT TCA GTG TC 3’
	R: 5’ CTT CAT CTT TGT CAT ACT TCA TGG CTC TAT G 3’