%0 Journal Article %T Polymorphisms in the CYP2E1 and GSTM1 Genes as Possible Protection Factors for Leprosy Patients %A Pablo Pinto %A Claudio Guedes Salgado %A Ney Santos %A Dayse O. Alencar %A Sidney Santos %A Mara H. Hutz %A £¿ndrea Ribeiro-dos-Santos %J PLOS ONE %D 2012 %I Public Library of Science (PLoS) %R 10.1371/journal.pone.0047498 %X Background The CYP2E1 and GSTM1 genes encode metabolic enzymes that have key functions in drug modification and elimination. Methodology/Principal Findings We investigated the possible effects of CYP2E1 and GSTM1 polymorphisms in 71 leprosy patients and in 110 individuals from the general population. The GSTM1*0 null allele and INDEL CYP2E1*1D mutant genotypes were analyzed by conventional PCR, while CYP2E1 SNPs (1053C>T, 1293G>C and 7632T>A) were determined by RT-PCR. In leprosy patients, the GSTM1*0 and CYP2E1*5 alleles and the combined alleles GSTM1*0/CYP2E1*6 and GSTM1*0/CYP2E1*5 were significantly related to a baciloscopic index (BI) (BI<3), while the CYP2E1*6 allele was related to a better clinical evolution in the leprosy spectrum. Conclusions/Significance Therefore, GSTM1*0, CYP2E1*5 and CYP2E1*6 may be possible protection factors for leprosy patients. %U http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0047498