Expression of cytokeratins in Helicobacter pylori –associated chronic gastritis of adult patients infected with cagA+ strains: An immunohistochemical study

Table 5 Expression of CK20 in antral mucosa of patients with gastritis (H pylori positive and negative) compared to the control group

Cytokeratin 20expression	Antral mucosa epithelium
	H pylori+G		H pylori-G		CG		P
	n	%	n	%	n	%
Surface epithelium
Expression in all cells	37	64.9	12	70.6	9	90
Patchy staining	20	35.1	5	29.4	1	10	NS
Without staining	0	0	0	0	0	0
n (%)	57	100	17	100	10	100
Upper foveolar region
Expression in all cells	32	56.1	12	70.6	9	90	NS
Patchy staining	25	43.9	5	29.4	1	10
Moderate/Strong	20	35.1	4	23.5	1	10
Weak	5	8.8	1	5.9	0	0	0.044
Without staining	0	0	0	0	0	0
n (%)	57	100	17	100	10	100

CG:control group; H pylori+G: Helicobacter pylori positive patients with gastritis; H pylori-G: Helicobacter pylori negative patients with gastritis; NS: P > 0.05.