Luis Sérgio Raposo

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INTRODUCTION Susceptibility to head and neck squamous cell carcinoma may be modified by functional polymorphisms in genes involved in the folate pathway, such as cystathionine beta-synthase (CBS). The CBS 844ins68 polymorphism is associated with DNA methylation changes and cancer development. MATERIAL AND METHODS A case-control retrospective study was(More)
Polymorphisms in the glutathione S-transferase superfamily genes that encodes enzymes involved in the phase II xenobiotic metabolism may lead head and neck cancer development. In this study we investigate the association of A313G and C341T GSTP1 polymorphisms, GSTM1 and GSTT1 null genotypes in the head and neck cancer development, interactions between these(More)
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