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- W2890162865 abstract "The pathogenicity of cagA-positive H. pylori strains is associated with the number and type of repeated sequences named EPIYA located in the C-terminal region of the CagA protein. The aim of this study is to determine the polymorphism of the H. pylori cagA 3′ region circulating in Morocco and its association with different gastric pathologies. A total of 1353 consenting patients, were recruited in this study. The gastric biopsies performed during endoscopy were used for histological examination and for molecular characterization of H. pylori. The study of the type and number of “EPIYA” motif was identified by PCR directly on H. pylori positive biopsies. Of all the biopsies, the infection rate was 61.1%. The cagA gene was amplified in 68.9% of the cases and the analysis of the 3′ region of cagA showed the exclusive presence of the “Western CagA” type with a predominance of the EPIYA-ABC motif (71.4%). The number of EPIYA-C motif varies from 0 to 2. The multinomial analysis shows that the infection with strains of H. pylori having two EPIYA-C motifs is a factor that increases the risk of developing gastric cancer compared to gastritis cases with strains lacking this motif (OR = 11.64; CI: 3.34–45.15), whereas this risk is 6 fold higher in comparison with duodenal ulcer cases (OR = 6, CI: 1.29–27.76). The results of this study suggest that the number of EPIYA-C motifs might be useful as a predictive marker of the infection evolution and will help in the identification of patients at high risk of developing gastric cancer." @default.
- W2890162865 created "2018-09-27" @default.
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- W2890162865 date "2018-12-01" @default.
- W2890162865 modified "2023-09-27" @default.
- W2890162865 title "Helicobacter pylori CagA EPIYA-C motifs and gastric diseases in Moroccan patients" @default.
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- W2890162865 doi "https://doi.org/10.1016/j.meegid.2018.09.015" @default.
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