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Effect of quercetin on DNA fragmentation in hippocampus of PCBs-exposed adult wister rats. Each bar represents mean ± SEM of 6 animals. Statistical significance is at P < 0.05 (a: Control versus others; b: Quercetin versus PCB, PCB + Quer; c: PCB versus PCB + Quer). M: 100bp Marker; L1: Control; L2: Quercetin; L3: PCB; L4:PCB+Quercetin.
