Table 5.

Comparison between the expression level of proteins relative to that of β-actin in colon tissue. ∗P < 0.05: significant compared to the DMH group. All results are expressed as the mean ± standard deviation. n = 4.

Groups	APC	CEA	PCNA	PDGF
Control	0.99 ± 0.05∗	0.39 ± 0.03∗	0.72 ± 0.08∗	0.98 ± 0.26∗
DMH	0.62 ± 0.05	0.82 ± 0.21	1.49 ± 0.15	1.38 ± 0.12
DMH + EEP	0.80 ± 0.12∗	0.61 ± 0.10∗	0.86 ± 0.05∗	0.85 ± 0.11∗
DMH + vitamin E	0.65 ± 0.14	0.71 ± 0.09	1.02 ± 0.12∗	0.94 ± 0.08∗