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The aim of this study is to Identify antibiotic resistance gene mutations in Helicobacter pylori (HP) and genetic diversity of drug metabolism for antibiotics and proton pump inhibitors (PPIs) in patients with HP infection using next-generation sequencing (NGS). The mutation of host/HP strain will be investigated by single NGS, and the eradication results according to genetic polymorphism of host/HP strain will be analyzed.
This study is a prospective observational study for the Helicobacter pylori (HP) infected patients on typical gastroduodenoscopy (EGD) at Boramae Hospital, Seoul, Korea.
The presence of antibiotic resistance genes of HP and the diversity of the pharmacokinetic genotypes of the subjects will be investigated by performing single next-generation sequencing (NGS) analysis using gastric mucosal tissue samples of the HP infected subjects.
The purpose of this study is to collect data on the antimicrobial resistance mutation of HP (23S rRNA gene, pbp1 gene, rdxA, frxA, frxB gene, 16S rRNA, gyrA, gyrB gene, and Cag A gene) and to investigate the genetic diversity on the metabolism of antibiotics and proton pump inhibitors (CYP enzyme) in a Korean population.
The investigators are going to compare the results of standard eradication therapy according to the resistance mutation of HP and drug genetic diversity of subjects.
Helicobacter Pylori Infection
Helicobacter Pylori eradication therapy
Not yet recruiting
Seoul National University Hospital
Published on BioPortfolio: 2019-02-17T22:19:15-0500
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A spiral bacterium active as a human gastric pathogen. It is a gram-negative, urease-positive, curved or slightly spiral organism initially isolated in 1982 from patients with lesions of gastritis or peptic ulcers in Western Australia. Helicobacter pylori was originally classified in the genus CAMPYLOBACTER, but RNA sequencing, cellular fatty acid profiles, growth patterns, and other taxonomic characteristics indicate that the micro-organism should be included in the genus HELICOBACTER. It has been officially transferred to Helicobacter gen. nov. (see Int J Syst Bacteriol 1989 Oct;39(4):297-405).
Infections with organisms of the genus HELICOBACTER, particularly, in humans, HELICOBACTER PYLORI. The clinical manifestations are focused in the stomach, usually the gastric mucosa and antrum, and the upper duodenum. This infection plays a major role in the pathogenesis of type B gastritis and peptic ulcer disease.
A species of gram-negative, spiral-shaped bacteria found in the gastric mucosa that is associated with chronic antral gastritis. This bacterium was first discovered in samples removed at endoscopy from patients investigated for HELICOBACTER PYLORI colonization.
Ulceration of the GASTRIC MUCOSA due to contact with GASTRIC JUICE. It is often associated with HELICOBACTER PYLORI infection or consumption of nonsteroidal anti-inflammatory drugs (NSAIDS).
Ulcer that occurs in the regions of the GASTROINTESTINAL TRACT which come into contact with GASTRIC JUICE containing PEPSIN and GASTRIC ACID. It occurs when there are defects in the MUCOSA barrier. The common forms of peptic ulcers are associated with HELICOBACTER PYLORI and the consumption of nonsteroidal anti-inflammatory drugs (NSAIDS).
MRSA (methicillin-resistant Staphylococcus aureus)
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