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Point mutations in the 23S rRNA gene of Helicobacter pylori associated with different levels of clarithromycin resistance.
Fifty-four of 59 (91.5%) clarithromycin-resistant isolates of Helicobacter pylori from different patients possessed either the A2143G (formerly A2058G) or the A2144G (formerly A2059G) mutation in theExpand
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Effect of Pretreatment Antibiotic Resistance to Metronidazole and Clarithromycin on Outcome of Helicobacter pylori Therapy
Our purpose was to define the effect of pretreatment Helicobacter pylori resistance to metronidazole or to clarithromycin on the success of antimicrobial therapy. We used 75 key words to perform aExpand
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Contrast-enhanced ultrasonographic evaluation of inflammatory activity in Crohn's disease.
BACKGROUND & AIMS We sought to test the diagnostic accuracy of ultrasound (US), color Doppler US (CD-US), and contrast-enhanced US (CE-US) in the evaluation of inflammatory activity in patients withExpand
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P-selectin mediates spontaneous leukocyte rolling in vivo.
Rolling represents the initial step leading to leukocyte extravasation from blood vessels during an inflammatory reaction. In vitro studies indicate that P-selectin could be one of the ligands onExpand
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Helicobacter Infection in Patients with HCV-Related Chronic Hepatitis, Cirrhosis, and Hepatocellular Carcinoma
Chronic hepatitis may progress to cirrhosis and hepatocellular carcinoma (HCC). HCC represents one of the most common human cancers. Incidence rates for this tumor vary widely on a worldwide,Expand
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Pretreatment Antibiotic Resistance in Helicobacter pylori Infection: Results of Three Randomized Controlled Studies
Background. Although combinations of antibiotics and antisecretory drugs are useful for treatment of Helicobacter pylori infection, treatment failure is common. The aim of this study was to evaluateExpand
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Effect of Antisecretory Therapy on Atypical Symptoms in Gastroesophageal Reflux Disease
The effect of proton pump inhibitor (PPI) therapy on extraesophageal or atypical manifestations of gastroesophageal reflux disease (GERD) remains unclear. This study aimed to evaluate the prevalenceExpand
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Dyspepsia: When and How to Test for Helicobacter pylori Infection
Dyspepsia is defined as symptoms related to the upper gastrointestinal tract. Approximately 25% of western populations complain of dyspeptic symptoms each year. 70% of them do not have an organicExpand
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Diet, Lifestyle and Gender in Gastro-Esophageal Reflux Disease
Background Studies indicate that gastro-esophageal reflux disease (GERD) is associated with obesity, smoking, esophagitis, diet, and lifestyle. Aim To identify risk factors associated with GERD amongExpand
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Extradigestive Manifestations of Helicobacter pylori Infection (Fact and Fiction)
Helicobacter pylori is a gram-negative , microae rophilic, oxidase -, catalase -, and urease-positive bacte rium, motile by means of a tuft of sheathed ̄ agella at one pole . The bacterium colonize sExpand
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