SIMILAR DIAGNOSTIC PERFORMANCE FOR NEUROCYSTICERCOSIS OF THREE GLYCOPROTEIN PREPARATIONS FROM TAENIA SOLIUM METACESTODES

GUIDO E. VILLOTA Molecular Parasitology Group, Corporación para Investigaciones Biológicas, Medellín, Colombia; Facultad de Ciencias Pecuarias, Centro de Estudios en Salud, Universidad de Nariño, San Juan de Pasto, Colombia; Universidad de Antioquia and Hospital Universitario San Vicente de Paul, Medellín, Colombia; Neurology Service, Hospital Pablo Tobón Uribe, Medellín, Colombia; Department of Microbiology, University of Texas Health Science Center at San Antonio, San Antonio, Texas

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DIANA I. GOMEZ Molecular Parasitology Group, Corporación para Investigaciones Biológicas, Medellín, Colombia; Facultad de Ciencias Pecuarias, Centro de Estudios en Salud, Universidad de Nariño, San Juan de Pasto, Colombia; Universidad de Antioquia and Hospital Universitario San Vicente de Paul, Medellín, Colombia; Neurology Service, Hospital Pablo Tobón Uribe, Medellín, Colombia; Department of Microbiology, University of Texas Health Science Center at San Antonio, San Antonio, Texas

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MICHEL VOLCY Molecular Parasitology Group, Corporación para Investigaciones Biológicas, Medellín, Colombia; Facultad de Ciencias Pecuarias, Centro de Estudios en Salud, Universidad de Nariño, San Juan de Pasto, Colombia; Universidad de Antioquia and Hospital Universitario San Vicente de Paul, Medellín, Colombia; Neurology Service, Hospital Pablo Tobón Uribe, Medellín, Colombia; Department of Microbiology, University of Texas Health Science Center at San Antonio, San Antonio, Texas

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ANDRÉS F. FRANCO Molecular Parasitology Group, Corporación para Investigaciones Biológicas, Medellín, Colombia; Facultad de Ciencias Pecuarias, Centro de Estudios en Salud, Universidad de Nariño, San Juan de Pasto, Colombia; Universidad de Antioquia and Hospital Universitario San Vicente de Paul, Medellín, Colombia; Neurology Service, Hospital Pablo Tobón Uribe, Medellín, Colombia; Department of Microbiology, University of Texas Health Science Center at San Antonio, San Antonio, Texas

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EDGAR A. CARDONA Molecular Parasitology Group, Corporación para Investigaciones Biológicas, Medellín, Colombia; Facultad de Ciencias Pecuarias, Centro de Estudios en Salud, Universidad de Nariño, San Juan de Pasto, Colombia; Universidad de Antioquia and Hospital Universitario San Vicente de Paul, Medellín, Colombia; Neurology Service, Hospital Pablo Tobón Uribe, Medellín, Colombia; Department of Microbiology, University of Texas Health Science Center at San Antonio, San Antonio, Texas

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RODRIGO ISAZA Molecular Parasitology Group, Corporación para Investigaciones Biológicas, Medellín, Colombia; Facultad de Ciencias Pecuarias, Centro de Estudios en Salud, Universidad de Nariño, San Juan de Pasto, Colombia; Universidad de Antioquia and Hospital Universitario San Vicente de Paul, Medellín, Colombia; Neurology Service, Hospital Pablo Tobón Uribe, Medellín, Colombia; Department of Microbiology, University of Texas Health Science Center at San Antonio, San Antonio, Texas

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FERNANDO SANZÓN Molecular Parasitology Group, Corporación para Investigaciones Biológicas, Medellín, Colombia; Facultad de Ciencias Pecuarias, Centro de Estudios en Salud, Universidad de Nariño, San Juan de Pasto, Colombia; Universidad de Antioquia and Hospital Universitario San Vicente de Paul, Medellín, Colombia; Neurology Service, Hospital Pablo Tobón Uribe, Medellín, Colombia; Department of Microbiology, University of Texas Health Science Center at San Antonio, San Antonio, Texas

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JUDY M. TEALE Molecular Parasitology Group, Corporación para Investigaciones Biológicas, Medellín, Colombia; Facultad de Ciencias Pecuarias, Centro de Estudios en Salud, Universidad de Nariño, San Juan de Pasto, Colombia; Universidad de Antioquia and Hospital Universitario San Vicente de Paul, Medellín, Colombia; Neurology Service, Hospital Pablo Tobón Uribe, Medellín, Colombia; Department of Microbiology, University of Texas Health Science Center at San Antonio, San Antonio, Texas

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BLANCA I. RESTREPO Molecular Parasitology Group, Corporación para Investigaciones Biológicas, Medellín, Colombia; Facultad de Ciencias Pecuarias, Centro de Estudios en Salud, Universidad de Nariño, San Juan de Pasto, Colombia; Universidad de Antioquia and Hospital Universitario San Vicente de Paul, Medellín, Colombia; Neurology Service, Hospital Pablo Tobón Uribe, Medellín, Colombia; Department of Microbiology, University of Texas Health Science Center at San Antonio, San Antonio, Texas

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The detection of antibodies to Taenia solium metacestodes is very important in the differential diagnosis of neurocysticercosis (NCC). In this study, an electroimmunotransfer blot (EITB) assay that uses an elaborate protocol with metacestode glycoproteins as antigens was compared with two other Western blots that use glycoproteins obtained using simpler methods, including an eluate from a lectin column, or the vesicular fluid (VF) of the parasite. The concordance between the three assays was 91% in patients with active NCC and 100% in patients with suspected NCC and previous documentation of negative serology. The specificities for the Western blots and the EITB assay were 98% and 100%, respectively (98% concordance). These data suggest that the simplest of these immunoassays, the one that uses the VF of T. solium metacestodes in a Western blot format, can be reliably used for the serologic diagnosis of NCC in developing countries where access to the EITB assay is difficult.

Author Notes

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    Restrepo BI, Obregón-Henao A, Mesa M, Gil DL, Ortiz BL, Mejía JS, Villota GE, Sanzón AF, Teale JM, 2000. Characterization of the carbohydrate components of Taenia solium metacestode glycoprotein antigens. Int J Parasitol 30 :689–696.

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    Bueno EC, Vaz AJ, Machado LD, Livramento JA, 2000. Neurocysticercosis: detection of IgG, IgA and IgE antibodies in cerebrospinal fluid, serum and saliva samples by ELISA with Taenia solium and Taenia crassiceps antigens. Arq Neuropsiquiatr 58 :18–24.

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