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

Figure 5.

Figure 5

Effect of protocatechuic acid on mRNA levels of genes involved in the initiation and promotion stages of hepatocarcinogenesis (5- and 15-week protocols). Data were normalized to the β-actin mRNA level and are expressed as the fold difference versus the negative control group. (A) TNF-α; (B) IL-1β; (C) Cyclin D1; (D) P53; (E) Bad; (F) Bcl-xl. 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.