Sentences with phrase «colonized mucosa»
Based upon these data, we hypothesize that strain - selective activation of NF - kB and / or MAPK by H. pylori cag + strains regulates MMP - 7 expression, which may contribute to the augmentation in carcinogenic risk associated with these strains by attenuating apoptosis within chronically colonized mucosa.
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Staphylococcus aureus is part of the natural skin flora, preferentially colonizing external mucosa in 30 to 50 % of the population, healthy carriers who develop no symptoms.
Our experiments have recently shown that MMP - 7 is detected exclusively in human mucosa colonized by cag + strains, and these same H. pylori strains selectively induce MMP - 7 in vitro through cag - mediated activation of NF - kB and MAPK.