Abstract
Lack of association of CYP1A1-MspI SNP and GSTM1 null genotypes with cancer in a Brazilian family with unusually high cancer incidence
Author(s): L.N. Moraes, M.F. Borges, P.A.C. Sousa, P.C. Venere and I.L. SouzaResearch has shown that genetic polymorphisms in biotransformation enzymes, such as CYP1A1 and GSTM1, are related to a greater or lesser susceptibility to various cancers. We made an analysis of CYP1A1m1 SNP and GSTM1 null genotypes in a family group (71 members) related by consanguinity who had an unusually high incidence of cancer and a high frequency of smokers. There were no significant differences in genotype frequencies in this family when compared to data for Brazilian populations. Possibly, the high incidence of cancer in this sample is associated with smoking and/or other factors not detected in this survey.
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