Indirect immunofluorescence staining patterns and their use for diagnosing cutaneous leishmaniasis and Chagas’ disease

Authors

  • Luis Vásquez Huerta Docente de la Facultad de Medicina UNSA y UCSM
  • Nancy Ruelas Llerena Docente de la Facultad de Medicina UNSA y UCSM
  • Eleazar Córdova Benzaquen Docente de la Facultad de Medicina UNSA

Keywords:

Leishmaniasis, Chagas disease, immunologic tests, Leishmania braziliensis, Trypanosoma cruzi

Abstract

Objective: To determine the value of indirect immunofluorescence (IFI) in the diagnosis of leishmaniasis and Chagas disease.

Material and method: Indirect immunofluorescence (IFI) was employed for diagnosing leishmaniasis and Chagas disease using Trypanosoma cruzi epimastigota as substrate antigens. A nuclear fluorescence pattern was found in sera from patients with leishmaniasis, and a peripheral pattern was found in those with Chagas disease. Afterwards, we estimated the diagnostic value of IFI for both diseases in a blinded fashion.

Results: For diagnosing leishmaniasis, IFI sensitivity was 84.2%, specificity, 100%, positive predictive value, 100%, negative predictive value 82.9%, and accuracy was 91.0%.

Conclusions: The immunofluorescence technique using Trypanosoma cruzi epimastigota, considering the proposed color patterns, is useful for diagnosing cutaneous leishmaniasis and T. cruzi infection by avoiding confusion because of immune cross-reactivity between these conditions.

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Published

2011-03-31

Issue

Section

ORIGINAL ARTICLES

How to Cite

1.
Indirect immunofluorescence staining patterns and their use for diagnosing cutaneous leishmaniasis and Chagas’ disease. Acta Med Peru [Internet]. 2011 Mar. 31 [cited 2024 Nov. 24];28(1):19-22. Available from: https://amp.cmp.org.pe/index.php/AMP/article/view/1079