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• W2313746989 abstract "Introduction We postulated that the oro–oral route of transmission between spouses could be an important route of transmission of Helicobacter pylori. Aims To estimate the prevalence of different genotypes of H. pylori as distinguished by the polymerase chain reaction–restriction fragment length polymorphism (PCR-RFLP) method in our local population, and to compare the genotypes of H. pylori isolated from patients and their spouses. Methods Gastric biopsies were obtained from 183 dyspeptic patients during endoscopy. PCR for H. pylori was carried out using the uceC gene for amplification, and PCR products were digested further for RFLP analysis using the enzyme Mbo I. Spouses of H. pylori-positive index cases were screened for the infection using serological testing; if found to be positive serologically, endoscopy and gastric biopsies were performed for genotypic study of the micro-organism. For couples with indistinguishable H. pylori strain on RFLP with restriction endonuclease Mbo I, the process of RFLP was repeated with digestion of the PCR products using restriction endonuclease Hha I. Results We established our PCR technique to be 89.5% sensitive and 95.5% specific. Eighty-nine subjects were found to be H. pylori positive by PCR, and eight different genotypic strains were found according to our RFLP analysis. Two genotypes accounted for 80.8% of the cases. Sixteen of 31 spouses tested serologically for H. pylori were positive. All 13 spouses who agreed to undergo endoscopy were PCR positive for H. pylori. Five couples shared indistinguishable H. pylori genotypes, but this strain was also the commonest genotype in our local population, as based on RFLP with restriction endonuclease Mbo I. Further RFLP on the PCR products on these five couples using restriction endonucleases Hha I showed that the H. pylori isolated from these five couples were of different strains. Conclusion The oro–oral route of transmission between spouses is unlikely to be an important mode for H. pylori infection." @default.
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• W2313746989 date "2002-05-01" @default.
• W2313746989 modified "2023-10-16" @default.
• W2313746989 title "Helicobacter pylori infection is unlikely to be transmitted between partners: evidence from genotypic study in partners of infected patients" @default.
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• W2313746989 doi "https://doi.org/10.1097/00042737-200205000-00009" @default.
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• W2313746989 hasPublicationYear "2002" @default.
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