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Res Commun Chem Pathol Pharmacol ; 52(3): 371-86, 1986 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-3016846

RESUMO

The human insulin gene is flanked by a polymorphic locus that is located approximately 500 base pairs (bp) from the 5' end of the point where transcription begins (Bell et al. 1981; Bell et al, 1982). Its occurrence is due to an insertion-deletion region which gives rise to two major classes of alleles: those containing small insertions of 0-600 bp and those containing larger insertions of 1,600-2,200 bp (Owerbach and Nerup, 1982). Insertions of 600-1,600 bp are rare (Rotwein et al., 1983). The larger insertions have previously been reported to be associated with type 2 diabetes (Owerbach and Nerup, 1982). We have conducted studies on a Mexican-American population in Starr County, Texas (98% Mexican-American) and a Tunisian population in Tunis, Tunisia, to determine if the frequency distribution of these classes of insulin gene alleles are similar to the previously reported frequency distributions and if any of the classes of alleles are associated with type 2 diabetes in these populations. We conclude that none of the classes of insulin gene alleles are associated with type II diabetes among Mexican-Americans or Tunisians, and that the frequency distributions of the insulin gene alleles do not vary significantly between the Tunisians, Mexican-Americans, or the aggregate data resulting from combining the insulin gene frequencies of several of the populations described thus far (Bell et al., 1984).


Assuntos
Diabetes Mellitus Tipo 2/genética , Etnicidade , Genes , Insulina/genética , Polimorfismo Genético , Adulto , Idoso , Enzimas de Restrição do DNA , DNA Recombinante/isolamento & purificação , Feminino , Hispânico ou Latino , Humanos , Masculino , México/etnologia , Pessoa de Meia-Idade , Plasmídeos , Valores de Referência , Texas , Tunísia
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