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Two competitive enzyme immunoassays for the detection of IgG class antibodies to hepatitis a antigen

Abstracts

Two competitive enzyme immunoassays (EIA) techniques were developed: in the first (COMP-1), test sera were added together with HAV antigen on anti-HAV IgG-coated wells followed by an anti-HA VHRP conjugate; in the second (COMP-2), test sera and anti-HA VHRP conjugate competed for HAV epitopes previously adsorbed to anti-HA V IgG-coated wells. Both procedures used tetramethylbenzidine (TMB) as a substrate. Both competitive tests were shown to be reproducible and suitable for routine diagnosis and research purposes.

Enzyme immunoassay; Anti-HAV; Hepatitis A


Foram desenvolvidos dois ensaios imunoenzimáticos (EIA) competitivos: no primeiro (COMP-1) colocou-se numa placa sensibilizada com anti-HAVIgG as amostras teste juntamente como antígeno HA Vea seguir o conjugado anti-HA VHRP; no segundo (COMP-2), as amostras teste e o conjugado anti-HAV HRP competem pelos epitopos do antígeno HAV previamente absorvido na placa sensibilizada do anti-HAV IgG. O substrato utilizado foi tetrametilbenzidina (TMB). Ambas as técnicas mostraram ser produtíveis e aplicáveis para fins de diagnóstico e pesquisa.

Enzyme immmunoassay; Anti-HAV; Hepatitis A


ARTICLES

Two competitive enzyme immunoassays for the detection of IgG class antibodies to hepatitis a antigen

Claudia Lamarca Vitral; Ana Maria Coimbra Gaspar; Clara Fumiko Tachibana Yoshida

Adress to correspondence Adress to correspondence: Dra. Claudia Lamarca Vitral. Depto. of Virology/FIOCRUZ. Av. Brasil 4365 21040 Rio de Janeiro, RJ, Brazil.

ABSTRACT

Two competitive enzyme immunoassays (EIA) techniques were developed: in the first (COMP-1), test sera were added together with HAV antigen on anti-HAV IgG-coated wells followed by an anti-HA VHRP conjugate; in the second (COMP-2), test sera and anti-HA VHRP conjugate competed for HAV epitopes previously adsorbed to anti-HA V IgG-coated wells. Both procedures used tetramethylbenzidine (TMB) as a substrate. Both competitive tests were shown to be reproducible and suitable for routine diagnosis and research purposes.

Keywords: Enzyme immunoassay. Anti-HAV. Hepatitis A.

RESUMO

Foram desenvolvidos dois ensaios imunoenzimáticos (EIA) competitivos: no primeiro (COMP-1) colocou-se numa placa sensibilizada com anti-HAVIgG as amostras teste juntamente como antígeno HA Vea seguir o conjugado anti-HA VHRP; no segundo (COMP-2), as amostras teste e o conjugado anti-HAV HRP competem pelos epitopos do antígeno HAV previamente absorvido na placa sensibilizada do anti-HAV IgG. O substrato utilizado foi tetrametilbenzidina (TMB). Ambas as técnicas mostraram ser produtíveis e aplicáveis para fins de diagnóstico e pesquisa.

Palavras-chave: Enzyme immmunoassay. Anti-HAV. Hepatitis A.

Full text available only in PDF format.

Texto completo disponível apenas em PDF.

Recebido para publicação em 16/01/91.

Departamento of Virology, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil.

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  • Adress to correspondence:

    Dra. Claudia Lamarca Vitral.
    Depto. of Virology/FIOCRUZ.
    Av. Brasil 4365
    21040
    Rio de Janeiro, RJ, Brazil.
  • Publication Dates

    • Publication in this collection
      15 May 2013
    • Date of issue
      June 1991

    History

    • Received
      16 Jan 1991
    • Accepted
      16 Jan 1991
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