8Haruma K, Kamada T, Kawaguchi H, et al. Effect of age and Helicobacter pytori infection on gatrie acid secretion[J]. J Gastroenterol 2000,15:277 - 283.
9Keenan JI, Allardyee RA. Iron influences the expression of Helicobacter pylori outer membrane vesicle-associated virulence factors [J]. Eur J Gastroenterol Gepatol 2000,12 : 1267 - 1273.
10Warren JR. Unidentified Curved bacilli on gastric Epithelium in active chronic gastritis[J]. Lancet, 1983,1 : 1272.
3Lee A, Fox JG, Otto F, Murphy J. A small animal model of human Helicobacter pylori active chronic gastritis. Gastroenterology, 1990, 99:1315~ 1323.
4Chen M, Lee A, Hazell SL. Immunization against helicobacter infection in a mouse/Helicobacter felis model. Lancet, 1992, 339: 1120~1121.
5Czinn SJ, Cai A, Nedrud JG. Protection of germfree mice from infection by Helicobacter felis after active oral or passive IgA immunization. Vaccine, 1993, 11: 637~642.
6Goto T, Nishizono A, Fujioka T, Ikewaki J, Mifune K, Nasu M. Local secretory immunoglobulin A and postimmunization gastritis correlate with protection against Helicobacter pylori infection after oral vaccination of mice. Infect Immun,1999, 67: 2531~2539.
7Lee CK, Weltzin R, Thomas WD Jr, Kleanthous H, Ermak TH, Soman G, Hill JE, Ackerman SK,Monath TP. Oral immunization with recombinant Helicobacter pylori urease induces secretory IgA antibodies and protects mice from challenge with Helicobacter felis. J Infect Dis, 1995, 172: 161~172.
8Pappo J, Thomas WD, Kabok Z, Taylor NS, Murphy JC, Fox JG. Effect of oral immunization with recombinant urease on murine Helicobac- ter felis gastritis. Infect Immun, 1995, 63: 1246~1252.
9Blanchard TG, Czinn SJ, Redline RW, Sigmund N, Harriman G, Nedrud JG. Antibody-independent protective mucosal immunity to gastric helicobacter infection in mice. Cell Immunol, 1999, 191:74 ~80.
10Ferrero RL, Thiberge JM, Labigne A. Local immunoglobulin G antibodies in the stomach may contribute to immunity against Helicobacter infection in mice. Gastroenterology, 1997, 113: 185~194.