Expression of matrix metalloproteinase-1 and tissue inhibitor of metalloproteinase-1 in ulcerative colitis

Table 4 Intensity of MMP-1 expression in samples from different areas of colon in UC

Sampes	-	+	++	+++	P value
Ulcerated area	5	2	4	19	< 0.001ac
Inflamed area	5	5	16	4	< 0.05ace
Non-inflamed area	18	10	2	0	> 0.05
Normal controls	13	6	1	0

^aP < 0.05 vs normal controls,

^cP < 0.05 vs non-inflamed area,

^eP < 0.05 vs ulcerated area.