Evaluating the recombinant T24H enzyme-linked immunoelectrotransfer blot assay for the diagnosis of neurocysticercosis in a panel of samples from a large community-based randomized control trial in 60 villages in Burkina Faso

Veronique Dermauw, Hélène Carabin, Assana Cissé, Athanase Millogo, Zébika Tarnagda, Rasmané Ganaba, John Noh, Sukwan Handali, Kathleen Breen, Vivian Richter, Rabiou Cissé, Pierre-Marie Preux, Marie-Paule Boncoeur-Martel, Andrea Sylvia Winkler, Anke Van Hul, Pierre Dorny, Sarah Gabriël

Research output: Contribution to journalA1: Web of Science-article

Abstract

Current guidelines for the diagnosis of neurocysticercosis (NCC) recommend the use of the lentil lectin-bound glycoprotein enzyme-linked immunoelectrotransfer blot assay (LLGP-EITB) as the reference standard for serological testing. In response to the drawbacks involved with the use of the LLGP-EITB, a recombinant T24H antigen (rT24H) EITB assay was developed, with promising results. However, the test has yet to be evaluated among individuals from sub-Saharan Africa (SSA). The aim of the present study was to investigate the performance of the rT24H EITB assay for the detection of NCC cases in a panel of serum samples (N = 366, of which 173 patients presented with epileptic seizures and/or severe chronic headaches, and 193 matched manifestation-free participants) collected as part of a large community-based trial in Burkina Faso. A perfect agreement between the rT24H EITB and the native gp24 (and its homodimer, gp42) LLGP-EITB was found (kappa value of 1.0). Furthermore, among patients with the neurological manifestations of interest who underwent a computed tomography scan, the rT24H EITB and native antigen LLGP-EITB had a comparable ability to correctly identify NCC cases with multiple viable (rT24H: sensitivity: 80.0%), single viable (66.7%), and calcified/degenerating cysts only (25.0%), albeit for multiple viable and calcified cysts, the rT24H estimated sensitivity seemed lower, but more uncertain, than previously reported. The rT24H EITB specificity was high (98.2%) and in line with previous studies. This study confirms the value of the recombinant rT24H EITB as an alternative to the native antigen LLGP-EITB for the diagnosis of NCC in a SSA community setting.

Original languageEnglish
JournalAmerican Journal of Tropical Medicine and Hygiene
Volume98
Issue number2
Pages (from-to)565-569
Number of pages5
ISSN0002-9637
DOIs
Publication statusPublished - 2018

Keywords

  • Journal Article

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