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HIV-1 subtyping using gag/env heteroduplex mobility assay and peptide enzyme-linked immunosorbent assay.
Asian Pac J Allergy Immunol ; 2005 Jun-Sep; 23(2-3): 143-52
Article em En | IMSEAR | ID: sea-36611
Two HIV-1 subtypes have accounted for virtually all infections in Thailand: subtype B', found mainly in injection drug users (IDUs), and CRF01_AE (initially subtype E), found in over 90% of sexually infected persons and increasingly in IDUs in recent years. During 1997-1998, 227 blood samples were collected from HIV-1 infected individuals consisting of 92 mothers, 35 children and 100 IDUs. The blood samples were subtyped by heteroduplex mobility assay (HMA) and peptide enzyme-linked immunosorbent assay (PEIA). Using gag and env HMA, CRF01_AE and subtype B' accounted for 96-97% and 3-4% of both the mothers and the children, respectively. In the IDU group, 10% of the plasma samples could only be performed by gag HMA and gave the result as CRF01_AE. CRF01_AE and subtype B' using PEIA accounted for 67% and 33% of the IDUs. There was 100% concordance of the results between gag HMA and env HMA. Ninety-five percentages of concordant results were observed between HMA and PEIA. Of the 6/134 (5%) subjects with discordant results, nucleotide sequencing, used as a gold standard, confirmed the HMA result. In this study, HIV-1 was successfully genotyped by HMA and PEIA. However, a comparison of the subtyping results between HMA and PEIA revealed that HMA was slightly more accurate than PEIA.
Assuntos
Texto completo: 1 Índice: IMSEAR Assunto principal: Peptídeos / Recombinação Genética / Tailândia / Feminino / Humanos / Masculino / DNA Viral / Ensaio de Imunoadsorção Enzimática / Genes env / Genes gag País/Região como assunto: Asia Idioma: En Revista: Asian Pac. j. allergy immunol Ano de publicação: 2005 Tipo de documento: Article
Texto completo: 1 Índice: IMSEAR Assunto principal: Peptídeos / Recombinação Genética / Tailândia / Feminino / Humanos / Masculino / DNA Viral / Ensaio de Imunoadsorção Enzimática / Genes env / Genes gag País/Região como assunto: Asia Idioma: En Revista: Asian Pac. j. allergy immunol Ano de publicação: 2005 Tipo de documento: Article