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Gelatin particle indirect agglutination test for serodiagnosis of schistosomiasis: comparative study with enzyme-linked immunosorbent assay

Teste de aglutinação indireta com partículas de gelatina: estudo comparativo com enzima imunoensaio

Abstracts

A new serological test, the gelatin particle agglutination test (GPAT), was used for the serodiagnosis of schistosomiasis mansoni. This technique showed the sensitivity (90.6%) and specificity (97.8%) close to those of enzyme-linked immunosorbent assay. The GPAT can be easily and rapidly performed without specialized equipment, by using lyophilized antigen-coated gelatin particles. The test also seems to be useful for mass screening of Schistosoma infection in field conditions.

Schistosoma mansoni; Serodiagnosis; GPAT (gelatin particle agglutination test); ELISA


Um novo teste sorológico, o teste de aglutinação com partículas de gelatina (TAPG), foi utilizado para o diagnóstico sorológico de esquistossomose mansônica. Esta técnica mostra que a sensibilidade (90.6%) e especificidade (97.8%) chegam próximas do teste de enzima imunoensaio. O TAPG pode ser fácil e rapidamente realizado sem equipamentos especializados usando partículas liofilizadas sensibilizadas com o antígeno. O teste mostrou ser também útil em condições de campo para triagem em massa da infecção pelo Schistosoma mansoni


SEROLOGY

Gelatin particle indirect agglutination test for serodiagnosis of schistosomiasis: comparative study with enzyme-linked immunosorbent assay

Teste de aglutinação indireta com partículas de gelatina: estudo comparativo com enzima imunoensaio

Jun KobayashiI,IV; Flair José CarrilhoII; Tetsu ShimabukuroI; Luiz Caetano da SilvaIII; Elza Cotrim SoaresI; Nancy Fusae NishimuraI; Pedro Paulo ChieffiIII,VI; Yoshiya SatoIV,V

ILaboratório de Imuno-Parasitologia, Gastrocentro, State University of Campinas, Campinas, SP, Brasil

IIDepartment of Gastroenterology, School of Medicine, University of São Paulo, SP, Brasil

IIIInstituto de Medicina Tropical de São Paulo, University of São Paulo, São Paulo, SP, Brasil. (LIM-06)

IVDepartment of Parasitology, School of Medicine, University of the Ryukyus, Japan

VResearch Center of Comprehensive Medicine, School of Medicine, University of the Ryukyus, Japan

VIDepartment of Preventive Medicine, School of Medicine, University of São Paulo, São Paulo, SP, Brasil

Correspondence to Correspondence to: Jun Kobayashi Gastrocentro Universidade Estadual de Campinas, Cidade Universitária "Zeferino Vaz" B. Geraldo, 13081 -970 Campinas, SP, Brasil

SUMMARY

A new serological test, the gelatin particle agglutination test (GPAT), was used for the serodiagnosis of schistosomiasis mansoni. This technique showed the sensitivity (90.6%) and specificity (97.8%) close to those of enzyme-linked immunosorbent assay. The GPAT can be easily and rapidly performed without specialized equipment, by using lyophilized antigen-coated gelatin particles. The test also seems to be useful for mass screening of Schistosoma infection in field conditions.

Keywords:Schistosoma mansoni; Serodiagnosis; GPAT (gelatin particle agglutination test); ELISA.

RESUMO

Um novo teste sorológico, o teste de aglutinação com partículas de gelatina (TAPG), foi utilizado para o diagnóstico sorológico de esquistossomose mansônica. Esta técnica mostra que a sensibilidade (90.6%) e especificidade (97.8%) chegam próximas do teste de enzima imunoensaio.

O TAPG pode ser fácil e rapidamente realizado sem equipamentos especializados usando partículas liofilizadas sensibilizadas com o antígeno.

O teste mostrou ser também útil em condições de campo para triagem em massa da infecção pelo Schistosoma mansoni.

Full text available only in PDF format.

Texto completo disponível apenas em PDF.

ACKNOWLEDGMENT

We are grateful to Fujirebio Inc., Tokyo, Japan (Mr. S. Hanzawa and Mr. Y. Nagafuchi) for supplying the gelatin particles and to Prof. Dr. M. Tanabe, Keio University, for his kind advices. This study was supported in part by The JICA (Japan International Cooperation Agency) Technical Co-operation for the Project on Gastroenterological Diagnosis and Research Center of the State University of Campinas.

Recebido para publicação em 02/12/1993

Aceito para publicação em 12/04/1994

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  • Correspondence to:

    Jun Kobayashi
    Gastrocentro Universidade Estadual de Campinas, Cidade Universitária "Zeferino Vaz"
    B. Geraldo, 13081 -970 Campinas, SP, Brasil
  • Publication Dates

    • Publication in this collection
      21 Sept 2006
    • Date of issue
      Oct 1994

    History

    • Accepted
      12 Apr 1994
    • Received
      02 Dec 1993
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