New Antigens for Serologic Diagnosis of Neuroborreliosis in Children

Autor: Pekka Lahdenne, Tuula Lönnqvist, Harri Saxen, Ilkka Seppälä, Heidi Sillanpää, Tero Heikkilä
Rok vydání: 2005
Předmět:
Zdroj: Pediatric Infectious Disease Journal. 24:709-712
ISSN: 0891-3668
Popis: Objective: To evaluate serology with novel Borrelia-specific protein or peptide antigens in the laboratory diagnosis of neuroborreliosis (NB) in children. Methods: The performance of enzyme-linked immunosorbent assays with several recombinant borrelial protein antigens and invariable region 6 synthetic peptide antigen and of a commercial enzyme-linked immunosorbent assay with the flagella antigen were evaluated in the serodiagnosis and follow-up of children with clinical suspicion of NB. Serum samples were obtained from 20 children with neurologic symptoms indicative of NB. The patients were retrospectively divided into 2 groups based on the laboratory tests at presentation indicating definite (n = 7) or probable (n = 13) NB. Results: In addition to cerebrospinal fluid (CSF) lymphocytic pleocytosis and CSF antiflagella antibodies, all 7 patients with definite NB had serum IgG antibodies to at least 2 of the 3 novel antigens at presentation. The 13 patients with probable NB had variable laboratory findings: CSF pleocytosis (n = 7), CSF antiflagella IgM antibodies (n = 4), serum antiflagella IgM and/or IgG antibodies (n = 10). Of these 13 patients, 7 had serum IgG antibodies to 2 of the 3 novel antigens at presentation. During long term follow-up, serum anti-invariable region 6 antibodies disappeared. Conclusions: The present study suggests that assessment of serum antibodies to a panel of Borrelia-specific antigens could improve the laboratory diagnosis of NB at presentation.
Databáze: OpenAIRE