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- W2034672021 abstract "The aim of the present study was to investigate the prevalence of Helicobacter pylori infection and the correlation between cagA and vacA (mid-region) genotypes with different clinical outcomes from Chennai, India, patients. Biopsies from the antrum were taken to assess the current H. pylori status by histology, rapid urease test (RUT), and PCR. The RUT and PCR analyses were carried out on a single biopsy specimen. Fasting sera were obtained from all patients and H. pylori status was determined by using ELISA. In addition, the correlations between cagA and vacA genotypes and the consequence of H. pylori infection were statistically examined. Prevalence of the cagA gene was found in 96% (90/94) of patients, and the vacA m2 subtype occurred in 60% (56/94), whereas 32% (30/94) showed the vacA m1 subtype. A significant association between the cagA and vacA m2 region (chi2 = 5.556; p < 0.01) was found in ulcer patients. The vacA m2 genotype showed a near-significant value (chi2 = 3.943; p < 0.047) in ulcer patients when compared with vacA m1. These findings suggest that H. pylori strains with the vacA m2 region were predominant in South India, especially in and around Chennai. This study also showed that PCR has a potential value for studying the cagA gene directly from biopsy specimens." @default.
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- W2034672021 date "2009-02-01" @default.
- W2034672021 modified "2023-09-26" @default.
- W2034672021 title "<i>Helicobacter pylori</i>detection and genotyping in gastric biopsy specimens from Chennai patients (India)" @default.
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- W2034672021 doi "https://doi.org/10.1139/w08-108" @default.
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