Helicobacter pylori virulence genes detected by string PCR in children from an urban community in northeastern Brazil.
نویسندگان
چکیده
The accuracy of a nested PCR in gastric DNA obtained by a string test for the diagnosis of Helicobacter pylori infection in asymptomatic children was 94.0%. The cagA-positive toxigenic vacAs1m1 strains were the most prevalent strains, indicating that this population is colonized early by the strains associated with gastric cancer.
منابع مشابه
Helicobacter pylori virulence genes detected by string PCR in children
25 The accuracy of a nested PCR in gastric DNA obtained by string test for the diagnosis of 26 H. pylori infection in asymptomatic children was 94.0%. The cagA-positive toxigenic vacA 27 s1m1 strains were the most prevalent indicating that this population is early colonized by the 28 strains associated with gastric cancer. 29
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Background and Aims: Helicobacter pylori is the main cause of various gastroduodenal diseases. It is estimated that app roximately, more than half of the adult population in developed countries and 90% of people in developing countries infected with H. pylori. H. pylori infection may be related to Genetic of virulence factors and environmental factors. The aim of this study was to assess of fre...
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We investigated the prevalence and the risk factors for infection with Helicobacter pylori in a randomly-selected population of adults from a low-income community in Northeastern Brazil. Helicobacter pylori infection was determined by ELISA. Risk factors were assessed using a structured interview. Two hundred and four individuals were included in the study, including 49 males and 155 females, r...
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BACKGROUND Helicobacter pylori is an important agent of gastroduodenal disease in Africa and throughout the world. We sought to determine an optimum method for genotyping H. pylori strains from children and adults in The Gambia, West Africa. RESULTS Virulence genes were amplified in 127 of 190 cases tested (121 adults and 6 children); each of 60 bacterial cultures, and 116 from DNA extracted ...
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ورودعنوان ژورنال:
- Journal of clinical microbiology
دوره 51 3 شماره
صفحات -
تاریخ انتشار 2013