Genetic factors associated with intestinal metaplasia in a high risk Singapore-Chinese population : a cohort study

F. Zhu, M. Loh, J. Hill, S. Lee, K.X. Koh, M. Salto-Tellex, Barry Iacopetta, K.G. Yeoh, R. Soong

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    Abstract

    BackgroundIntestinal metaplasia (IM) is an important precursor lesion in the development of gastric cancer (GC). The aim of this study was to investigate genetic factors previously linked to GC risk for their possible association with IM. A total of 18 polymorphisms in 14 candidate genes were evaluated in a Singapore-Chinese population at high risk of developing GC.MethodsGenotype frequencies were compared between individuals presenting with (n = 128) or without (n = 246) IM by both univariate and multivariate analysis.ResultsCarriers of the NQO1 609 T allele showed an association with IM in individuals who were seropositive for Helicobacter pylori (HP+; OR = 2.61, 95%CI: 1.18-5.80, P = .018). The IL-10 819 C allele was also associated with IM in HP+ individuals (OR = 2.32, 95%CI: 1.21-4.43, P = 0.011), while the PTPN11 A allele was associated with IM in HP- individuals (OR = 2.51, 95%CI: 1.16-5.40, P = 0.019), but showed an inverse association in HP+ subjects (OR = 0.46, 95%CI: 0.21-0.99, P = 0.048).ConclusionPolymorphisms in NQO1, IL-10 and PTPN11, in combination with HP status, could be used to identify individuals who are more likely to develop IM and therefore GC.
    Original languageEnglish
    Pages (from-to)76
    JournalBMC Gastroenterology
    Volume9
    DOIs
    Publication statusPublished - 2009

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