Characterization of flgK gene and FlgK protein required for H pylori Colonization-from cloning to clinical relevance

Table 2 The serologic responses against FlaA and r-FlgK of H pylori among patients with different gastric colonization

Serological A titer	H pylori–negative	Low colonization	High colonization
Mean (SD)	(n = 20)	(n = 20)	(n = 30)
Anti-FlaAab	0.268 (0.152)	0.298 (0.118)	0.398 (0.159)
Anti-r-FlgK	0.468 (0.154)	0.501 (0.258)	0.521 (0.233)

Low colonization and high colonization were defined by the total H pylori density in the human stomach scored as less or equal to 5 and more than 5, respectively. A: indicates the optical density of titer checked by ELISA with a 1:1000 dilution of serum.

^aindicated significant difference between patients without H pylori infection and with high colonization;

^bindicated significant difference between patients with low and with high colonization (One way ANOVA test with Bonferroni’s method, P < 0.05).