Abstract
The enzyme-linked immunoelectrotransfer blot (EITB) assay to detect antibodies in serum is a complementary tool for the diagnosis of neurocysticercosis (NCC). Presence of at least one glycoprotein band corresponding to a Taenia solium (T. solium) antigen indicates a positive result; however, EITB assays have multiple glycoprotein bands, and previous work has suggested that band patterns may have additional diagnostic value. We included 58 participants with a definitive diagnosis of NCC who received care at the Instituto Nacional de Neurología y Neurocirugía in Mexico City. Three different EITB tests were applied to participants’ serum samples (LDBio, France; US Centers for Disease Control and Prevention [CDC]; and Instituto de Diagnóstico y Referencia Epidemiológicos [InDRE]). There was substantial variability in specific glycoprotein band patterns among the three assays. However, in age- and sex-adjusted logistic regression models, the number of glycoprotein bands was positively associated with the presence of vesicular extraparenchymal cysts (InDRE adjusted odds ratio [aOR] 1.60 p < 0.001; CDC aOR 6.31 p < 0.001; LDBio aOR 2.45 p < 0.001) and negatively associated with the presence of calcified parenchymal cysts (InDRE aOR 0.63 p < 0.001; CDC aOR 0.25 p < 0.001; LDBio aOR 0.44 p < 0.001). In a sensitivity analysis also adjusting for cyst count, results were similar. In all three EITB serum antibody tests, the number of glycoprotein bands consistently predicted cyst stage and location, although magnitude of effect differed.
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Dr. Teresa Garate passed away before the submission of the final version of this manuscript.
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This work was partially supported by the “Programa Iberoamericano de Ciencia y Tecnología para el Desarrollo, CYTED” [211RT0432] and by the “Programa de Investigación para el Desarrollo y la Optimización de Vacunas, Inmunomoduladores y Métodos Diagnósticos del IIB” (PROVACADI, Instituto de Investigaciones Biomédicas, UNAM, México).
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This study was designed by AF and MR and implemented by RMEP, TG, ES, MH, OGA, GD, JLRA, AML, RGR, and AT. MLR and AF analyzed and interpreted the data. MLR drafted the first version of the manuscript. All authors critically revised the manuscript for intellectual content, read, and approved the final manuscript.
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Romo, M.L., Hernández, M., Astudillo, OG. et al. Diagnostic value of glycoprotein band patterns of three serologic enzyme-linked immunoelectrotransfer blot assays for neurocysticercosis. Parasitol Res 119, 2521–2529 (2020). https://doi.org/10.1007/s00436-020-06750-z
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DOI: https://doi.org/10.1007/s00436-020-06750-z