Culture on four-sector agar plates and FISH test had a high sensitivity and specificity and showed co-presence of sensitive and resistant strains. In one-third of children with mixed infection, the resistant strains were in the fundus only. Clarithromycin resistance should be assessed in biopsies both from the antrum and the fundus, utilizing antral biopsies only can underestimate its prevalence.
Paternal allergy and cesarean section are associated to decreased TGF-beta1, which might be the mediator of the increased risk of atopy development. Cord blood IL-10 and TGF-beta1 levels of our newborn series could be used as reference values for further studies on these relationships.
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