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The Helicobacter pylori infections are followed by an infiltration of the gastric mucosa by neutrophils and macrophages. Accumulation of phagocytes enables them to interact with H. pylori, but a great number of infected subjects cannot eradicate these bacteria. The H. pylori inhibits its own uptake by blocking the function of phagocytes. The anti-phagocytic mechanism depends on bacterial surface structures...
In this study we asked a question whether H. pylori LPS with or without LewisXY (Le) determinants as well as LBP (lipopolysaccharide binding protein) and sCD14 molecules recognizing bacterial LPS may be involved in atherogenesis. Sera from 57 patients with coronary heart disease (CHD), 27 H. pylori infected dyspeptic patients-H.p.(+) and 49 healthy controls (HC) were tested for IgM and IgG to H. pylori...
Considering the role of lectin-carbohydrate interactions between Helicobacter pylori bacteria and the host cells we addressed the question on how mannose binding lectin - MBL, present in human plasma, may influence the phagocytosis of H. pylori by peripheral blood granulocytes. For phagocytosis assay the granulocytes separated from peripheral blood of healthy H. pylori-seronegative donors were used...
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