Effects of quercetin on hyper-proliferation of gastric mucosal cells in rats treated with chronic oral ethanol through the reactive oxygen species-nitric oxide pathway

Figure 2 Staining of PCNA from rats in the 4 groups, respectively (A-D). Stem cells at the neck position were positively stained, while other cells were negatively stained. A significantly increased number of PCNA positive cells were observed in the fundic gland of rats treated with ethanol for 7 d. A: Control; B: Ethanol; C: Ethanol + Quercetin; D: Quercetin.