Gastric biopsy specimens
Comparison of Fluorescent In Situ Hybridization and Conventional Culturing for Detection of Helicobacter pylori in Gastric Biopsy Specimens
... Gastric biopsy specimens of four patients harbored two dif- ferent H. pylori strains: one clarithromycin-sensitive strain (hy- bridization with probe Hpy-1) and one clarithromycin-resistant strain ...
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The Efficacy of Laboratory Diagnosis ofHelicobacter pylori Infections in Gastric Biopsy Specimens Is Related to Bacterial Density and vacA,cagA, and iceA Genotypes
... four biopsy specimen-based assays yielded positive ...four biopsy specimen-based methods were greater than ...the gastric mucosa, the sensitivity of the CLO test depends on the number of bacteria and ...
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Validation of a Fluorescence In Situ Hybridization Method Using Peptide Nucleic Acid Probes for Detection of Helicobacter pylori Clarithromycin Resistance in Gastric Biopsy Specimens
... Here, we evaluated a previously established peptide nucleic acid-fluorescence in situ hybridization (PNA-FISH) method as a new diagnostic test for Helicobacter pylori clarithromycin resistance detection in ...
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A Novel Method for Genotyping the Helicobacter pylori vacA Intermediate Region Directly in Gastric Biopsy Specimens
... in gastric biopsy specimens of 386 ...paraffin-embedded gastric biopsy speci- mens, ...and gastric disease development was subsequently evaluated in the Portuguese ...for ...
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PCR and RFLP Analysis for Identification and Typing of Helicobacter pylori Strains from Gastric Biopsy Specimens
... Helicobacter pylori is the causative agent of chronic gastritis and peptic ulcer diseases and is also a risk factor for gastric cancer. Since culture of Helicobacter pylori is relatively insensitive and ...
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Helicobacter pylorigenotypes identified in gastric biopsy specimens from Jordanian patients
... The iceA gene, encoding for a putative restriction enzyme, which appears to be induced when H. pylori encounters epithelial cells shows allelic variation according to point mutation, resulting in two allelic types, the ...
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Diagnosis of Helicobacter pylori infection by PCR: comparison with other invasive techniques and detection of cagA gene in gastric biopsy specimens
... in gastric biopsy specimens with specific primers for ureC gene amplification (herein referred to as ureC PCR) was compared with other routine invasive methods (culture, the rapid-urease test, and ...
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Compression of Histopathology, Culture and Rapid Urease Test in Diagnosis of Helicobacter Pylori in Gastric Biopsy Specimens
... Background and Objective: Helicobacter pylori ( H . Pylori ) infection is related to chronic gastritis, peptic ulcer, duodenal ulcer and gastric cancer. Thus, identification and treatment of the infection have a ...
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Development and Application of a Novel Peptide Nucleic Acid Probe for the Specific Detection of Helicobacter pylori in Gastric Biopsy Specimens
... and gastric cancer ...of gastric biopsy specimens ...diagnosis. Gastric biopsy specimens obtained by upper endoscopy can be analyzed for the presence of the bacterium by ...
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Absence of Helicobacter pylori high tetracycline resistant 16S rDNA AGA926-928TTC genotype in gastric biopsy specimens from dyspeptic patients of a city in the interior of São Paulo, Brazil
... in gastric biopsy specimens obtained from dyspeptic patients submitted to gastroscopy at Hospital das Clinicas of Marilia, São Paulo, Brazil, from January 2003 to July ...
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Evaluation of a New Test, GenoType HelicoDR, for Molecular Detection of Antibiotic Resistance in Helicobacter pylori
... Our objective was to develop and implement a molecular method to easily detect mutations predictive of clarithromycin and fluoroquinolone resistance in H. pylori. We based our test on the DNA strip methodology used with ...
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Evaluation of a commercially available second generation immunoglobulin G enzyme immunoassay for detection of Helicobacter pylori infection
... pylori but the presence of the bacterium in gastric biopsy specimens by Giemsa stain and/or culture, ii the presence of IgG antibodies but an absence of the bacterium in biopsy specimens[r] ...
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Evaluation of performances of three DNA enzyme immunoassays for detection of Helicobacter pylori PCR products from biopsy specimens
... PCR is recognized as a promising method for the detection of Helicobacter pylori in gastric biopsy specimens. However, detection of PCR products by gel electrophoresis is difficult to implement in ...
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The Efficacy and Safety of the Combination of Elbasvir/Grazoprevir In the Treatment of Chronic Hepatitis C Virus Infection: A Systematic Review of Clinical Trials
... human gastric biopsy specimens from subjects with gastric carcinoma and other gastro-duodenal diseases, Journal of Applied Microbiology 2007;103: ...
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Detection of Helicobacter pylori gene expression in human gastric mucosa
... tissues. Gastric antral and body biopsy specimens and serum for ...patients. Biopsy specimens were studied by histology, culture, and reverse transcription PCR ...in gastric ...
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Evaluation of a Novel Heminested PCR Assay Based on the Phosphoglucosamine Mutase Gene for Detection of Helicobacter pylori in Saliva and Dental Plaque
... in biopsy specimens (25, 44), and progress has been made by use of PCR, which provides a specific and highly sensitive means of detecting microbial pathogens in clinical ...fresh gastric ...
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Prevalence and clinical profile of hyperplastic gastric polyps in north India
... the gastric mucosa, up to 6%, particularly if associated with chronic gastritis (Nakamura, 1985; Abraham, 2001; Daibo, 1987; Bai, 2010; Hattori, 1985; Robbins, 1995; Dore, 2015; Magali Evangelina, 2018; Morais, ...
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Epstein-Barr Virus Promotes Epithelial Cell Growth in the Absence of EBNA2 and LMP1 Expression
... EBV infection of primary gastric epithelial cells. We could obtain a sufficient number of cells for infection experiments from 21 independent PGE cultures. Successful EBV infection was discerned in three of these ...
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Tumor containing fragment number influences immunohistochemistry positive rate of HER2 in biopsy specimens of gastric cancer
... diagnosed gastric adenocarcinoma by endoscopic biopsy specimens during March 2013 to January 2014 in Zhongshan Hospital, Fudan ...surgical specimens of 459 cases were available, and HER2 ...
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Determination of Relative Frequency of Mast Cells and Eosinophils in Gastric Mucosa Biopsies in Children with Recurrent Abdominal Pain and Normal Endoscopy
... upper gastrointestinal tract may cause dyspepsia and inflammation has been implicated in the development of functional gastrointestinal disorders (21) .Among the inflammatory cells, mast cells and eosinophils are ...
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