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| Galbiatti,A.L.S.; Ruiz,M.T.; Biselli-Chicote,P.M.; Raposo,L.S.; Maniglia,J.V.; Pavarino-Bertelli,E.C.; Goloni-Bertollo,E.M.. |
| The functional effect of the A>G transition at position 2756 on the MTR gene (5-methyltetrahydrofolate-homocysteine methyltransferase), involved in folate metabolism, may be a risk factor for head and neck squamous cell carcinoma (HNSCC). The frequency of MTR A2756G (rs1805087) polymorphism was compared between HNSCC patients and individuals without history of neoplasias. The association of this polymorphism with clinical histopathological parameters was evaluated. A total of 705 individuals were included in the study. The polymerase chain reaction-restriction fragment length polymorphism technique was used to genotype the polymorphism. For statistical analysis, the chi-square test (univariate analysis) was used for comparisons between groups and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Head and neck cancer; Polymorphism; Folate metabolism; MTR gene. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010000500005 |
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| Brustolin,S.; Giugliani,R.; Félix,T.M.. |
| Homocysteine is a sulfur-containing amino acid derived from the metabolism of methionine, an essential amino acid, and is metabolized by one of two pathways: remethylation or transsulfuration. Abnormalities of these pathways lead to hyperhomocysteinemia. Hyperhomocysteinemia is observed in approximately 5% of the general population and is associated with an increased risk for many disorders, including vascular and neurodegenerative diseases, autoimmune disorders, birth defects, diabetes, renal disease, osteoporosis, neuropsychiatric disorders, and cancer. We review here the correlation between homocysteine metabolism and the disorders described above with genetic variants on genes coding for enzymes of homocysteine metabolism relevant to clinical practice,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Homocysteine; Hyperhomocysteinemia; Folate metabolism; Single nucleotide polymorphism; Susceptibility genes. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010000100001 |
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