Table 4.

Effect of tea on PCNA-LI in colonic mucosa of DMH-treated rats (x^- ± s)

Treatment groups	PCNA-LI
	Week 16 (n = 8)	Week 32 (n = 8)
DMH	41.75 ± 6.01	52.53 ± 5.40
Green tea + DMH	22.02 ± 3.63a	36.63 ± 5.41a
Tea pigments + DMH	29.66 ± 2.65a	40.36 ± 5.64a
Negative control	14.34 ± 4.68	15.43 ± 5.08

PCNA: Proliferating cell nuclear antigen.

^aP < 0.01, comparison with DMH group by Student’s t test.