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. 2022 Jun 22;12:10548. doi: 10.1038/s41598-022-14888-2

Figure 2.

Figure 2

Effect of purple rice bran extract and protocatechuic acid on the number and area of hepatic GST-P-positive foci. (A) Immunohistochemical staining of GST-P-positive foci (brown) (20 ×); (B) number of GST-P+ foci/cm2; (C) area (mm2/cm2). Values are expressed as mean ± SEM. *Significantly different from the negative control group, p < 0.05. #Significantly different from the positive control group, p < 0.05. DEN: diethylnitrosamine, PCA: protocatechuic acid, PRBE: purple rice bran extract.