Immunoblot assay for detection of salivary antibodies directed against Helicobacter pylori

Abstract
Editor,—The study by Reilly et al ( Gut 1997; 40 :454–8) showing that analysing saliva for the presence of Helicobacter pylori specific antibodies might be useful for diagnosis is interesting and prompted us to investigate the H pylori specific antibody response of the IgA and IgG class in serum and saliva using the immunoblot assay in 90 patients with chronic gastritis who underwent gastroscopy. H pylori carrier status was defined …

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