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CUENCA,JIMENA; PÉREZ,CLAUDIO A.; AGUIRRE,ADAM J.; SCHIATTINO,IRENE; AGUILLÓN,J. CARLOS. |
Several single-nucleotide polymorphisms have been identified in the human TNF gene promoter. The polymorphism at position _308 (TNF-308), which involves substituting G for A and designing the TNF2 allele, leads to a higher rate of TNF gene transcription than the wild-type TNF1 allele in in vitro expression studies. It has also been linked to increased susceptibility to a variety of illnesses. Using PCR-RFLP analysis we detected significant differences in the TNF-308 genotypes of Chilean and other populations. We conclude that there is a gradient in the distribution of the TNF2 allele according to ethnicity; we have also hypothesized that populations bearing a higher proportion of the TNF2 allele may have an increased predisposition toward or incidence of... |
Tipo: Journal article |
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Ano: 2001 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602001000300011 |
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