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  • Title: Lack of protection against gastric Helicobacter infection following immunisation with jack bean urease: the rejection of a novel hypothesis.
    Author: Chen M, Lee A, Hazell SL, Hu P, Li Y.
    Journal: FEMS Microbiol Lett; 1994 Mar 01; 116(3):245-50. PubMed ID: 8181696.
    Abstract:
    The common mucosal immune system was stimulated by oral immunisation with jack bean urease and the adjuvant cholera toxin. A high level of local antibody and serum antibody was induced in mice following hyperimmunisation with this combination. No cross-reacting antibody was found against either Helicobacter pylori or Helicobacter felis. No protection was observed against oral challenge of immunised mice with living H. felis thus disproving the interesting hypothesis of Pallen and Clayton that plant urease might induce a protective immunity against helicobacter infection.
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