Table 3.

 Immunohistochemical staining results of the sporadic colon carcinoma group

	iNOS	COX-2	Fas	Bcl-xl	Active caspase 3
Patient A
Normal mucosa	1	0	1	1	Positive
Ca, T3N1M0	2	1	1	0	Positive
Patient B
Normal mucosa	1	1	1	1	Positive
Ca, T3N0M0	2	2	1	0	Positive
Patient C
Normal mucosa	1	1	1	0	Positive
Ca, T3N0M0	3	1	1	0	Positive
Patient D
Normal mucosa	1	1	1	1	Positive
Ca, T3N2M0	1	0	1	0	Positive

Immunohistochemical score: 0, 0%; 1, 0–10%; 2, 10–50%; 3, 50–100%.

Ca, carcinoma; COX-2, cyclooxygenase 2; iNOS, inducible nitric oxide synthase.