Table 2.

Expression of mucins (MUC2, MUCSAC and MUC6) in H. pylori infected pre-neoplastic and neoplastic human gastric epithelium

Stages	H. pylori		MUC2 Expression					MUC5AC Expression					MUC6 Expression
	N	P	-	+	++	+++	++++	-	+	++	+++	++++	-	+	++	+++	++++
Normal (n = 7)	7	-	n = 7 (100%)	-	-	-	-	-	-	-	n = 2 (28.6%)	n = 5 (71.4%)	-	-	-	1 (14.3%)	6 (85.7%)
Atrophic gastritis (n = 26)	-	26	n = 22 (84.6%)	n = 4 (15.4%)	-	-	-	-	-	1 (38%)	13 (50%)	12 (46.2%)	-	-	1 (3.8%)	15 (57.7%)	10 (38.5%)
Intestinal metaplasia (n = 21)	-	21	-	-	n = 9 (42.9%)	n = 12 (57.1%)**	-	-	1 (4.8%)	16 (76.2%)**	4 (19%)	-	-	5 (23.8%)	14 (66.7%)**	2 (9.5%)	-
Dysplasia (n = 17)	-	17	-	n = 5 (29.4%)	n = 11 (64.7%)	n = 1 (5.9%)	-	-	3 (17.6%)	10 (58.8%)	4 (23.5%)	-	-	3 (17.6%)	11 (64.7%)	3 (17.3%)	-
Carcinoma (n = 36)	-	36	-	22 (61.1%)	14 (38.9%)	-	-	-	28 (77.8%)	8 (22.2%)	-	-	12 (33.3%)	17 (47.2%)	7 (19.4%)	-	-

N – negative - (> 5%) negative

P – positive + (5–25%) few positive cells

n – No. of cases ++ (25–50%) well-defined area

+++ (50–75%) extensive area stained

++++ (75–100%) most of the cells stained

**p < 0.00, *p < 0.05 (Significant difference in expression)