CXCL13 concentrations in cerebrospinal fluid of patients with Lyme neuroborreliosis and other neurological disorders determined by Luminex and ELISA

Publication date: Available online 20 April 2018 Source:Ticks and Tick-borne Diseases Author(s): Mateusz Markowicz, Anna-Margarita Schötta, Michael Kundi, Petra Bogovič, Katarina Ogrinc, Franc Strle, Gerold Stanek The aims of the study were to determine and compare the concentration of CXCL13 in cerebrospinal fluid (CSF) of patients with Lyme neuroborreliosis (LNB) and various other neurological disorders applying a Luminex based assay and ELISA, and to find factors associated with CXCL13 concentration. CSF samples obtained from four clinically well-defined groups of patients (proven LNB, suspected LNB, tick-borne encephalitis (TBE), and aseptic meningitis/meningoencephalitis other than TBE) – 25 samples per group – were analyzed. The performance of the Luminex recomBead CXCL13 assay (Microgen, Neuried, Germany) and ELISA (Euroimmun, Lübeck, Germany) was assessed by receiver operating characteristics. CXCL13 cut-off values were presented as functions of CSF lymphocyte/monocyte counts. Demographic variables, CSF findings, and history of erythema migrans were assessed as possible predictors for CXCL13 CSF concentrations by a general linear model. The calculated cut-off values determined by the maximum of the Youden index were >131 pg/mL for recomBead and >259 pg/mL for the ELISA. RecomBead showed a sensitivity of 88% (68.8–97.5%) and a specificity of 94% (83.5–98.7%). For the ELISA the corresponding values were 84% (63.9–95.5%...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research

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Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
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