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Application of synthetic 8-kD and recombinant GP50 antigens in the diagnosis of neurocysticercosis by enzyme-linked immunosorbent assay.

AbstractThe gold standard serodiagnostic assay for cysticercosis and neurocysticercosis, diseases caused by the metacestode of Taenia solium, uses lentil lectin-purified glycoprotein (LLGP) in a Western blot assay. We tested two antigens derived from LLGP, synthetic TS18var1 (sTS18var1) and recombinant GP50 antigen (rGP50), in an enzyme-linked immunosorbent assay (ELISA) using serum and cerebrospinal fluid (CSF) samples. The sensitivity for serum and CSF was 94.7% and 100% for rGP50 and 90.4% and 90.2% for sTS18var1, respectively. The specificity for serum and CSF samples was 93.8% and 100% for rGP50 and 90.3% and 98.0% for sTS18var1, respectively. The use of these antigens individually or combined as a diagnostic antigen cocktail eliminates the need for purification of antigens from parasite material and offers the advantage of using a simple and quantitative ELISA format.
AuthorsEdneia C Bueno, Christina M Scheel, Adelaide J Vaz, Luis R Machado, José A Livramento, Osvaldo M Takayanagui, Victor C W Tsang, Kathy Hancock (Affiliation: Faculty of Pharmacy, University of the Vale do Itajaí, Itajaí, Santa Catarina, Brazil. ecbueno at ccs.univali.br)
JournalThe American journal of tropical medicine and hygiene (Am J Trop Med Hyg) Vol. 72 Issue 3 Pg. 278-83 (Mar 2005) ISSN: 0002-9637 United States
PMID15772321 (Publication Type: Comparative Study, Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • Antibodies
  • Nerve Tissue Proteins
  • Recombinant Proteins
  • brain synaptic membrane glycoprotein gp 50
Topics
  • Animals
  • Antibodies (blood)
  • Enzyme-Linked Immunosorbent Assay (methods)
  • Humans
  • Nerve Tissue Proteins (blood, genetics)
  • Neurocysticercosis (blood, diagnosis, immunology)
  • Recombinant Proteins (blood)
  • Reference Values
  • Sensitivity and Specificity
  • Serologic Tests
  • Taenia (immunology)
  • Taeniasis (blood, diagnosis, immunology)