… Two sets of gastric biopsy samples were used in this study. First, we examined a series of …
20C) gastric biopsy samples from 39 dyspeptic patients attending an open-access endoscopy …

… mutations, causing clarithromycin resistance. Gastric biopsy specimens were examined by
… of 10 6 to 10 7 bacteria/ml of sample in naturally-infected human gastric tissues. Strains with …

… these 33 samples, 8 (24%) tested clarithromycin resistant by … HP and its resistance to
clarithromycin in human gastric biopsies. … on gastric biopsies of all patients undergoing …

… The Gram negative bacteria Helicobacter pylori colonize the human stomach with prevalence
rates from 25% in western to over 90% in developing countries. Persistent infection is …

… all gastric biopsy samples analyzed were the same biopsies used routinely for urease rapid
test as part of the gastroenterology outpatient service of the Hospital das Clinicas of Marilia …

… clarithromycin resistance is either by testing H. pylori isolates cultured from gastric biopsies
… The aim of the present study was the rapid assessment of clarithromycin resistance, in …

… in the 23S rRNA genes responsible for clarithromycin resistance in gastric biopsies. …
Bacterial strains and gastric biopsy specimens Three different batches of strains and/or specimens …

… The resulting collagen plug was formalin-fixed and paraffin-embedded according to our
institutional protocol for gastric biopsy specimens. 10-μm-thick sections were prepared and …

… The prevalence of clarithromycin resistance in this study was 18.5% (12 of 65). MICs of
clarithromycin for susceptible and resistant strains were ≤0.016 to 0.12 and 24 to ≥256 μg/ml, …

… Low Helicobacter pylori primary resistance to clarithromycin in gastric biopsy specimens
from dyspeptic patients of a city in the interior of São Paulo, Brazil. BMC Gastroenterol. 2013;13:…