Related Experiment Video
Updated: Aug 9, 2026
Detection of Disease-associated α-synuclein by Enhanced ELISA in the Brain of Transgenic Mice Overexpressing Human A53T Mutated α-synuclein
Published on: May 30, 2015
[Diagnosis of human neurocysticercosis by ELISA-IgG using a purified antigen]
P Salinas1, L Sandoval, E Rugiero
1Departamento de Parasitología, Facultad de Medicina, Universidad de Chile, Santiago, Chile.
Insights
This study evaluated ELISA-IgG for diagnosing human neurocysticercosis (NC). ELISA-IgG demonstrated high sensitivity and specificity in serum and cerebrospinal fluid (CSF) samples, proving effective for NC diagnosis.
Area of Science:
- Medical Parasitology
- Immunodiagnostics
- Neurology
Background:
- Neurocysticercosis (NC) is a significant parasitic infection of the central nervous system.
- Accurate immunodiagnosis is crucial for effective management of NC.
Purpose of the Study:
- To evaluate the diagnostic performance of ELISA-IgG for human neurocysticercosis (NC).
- To compare ELISA-IgG with other immunodiagnostic tests like CFT and IHAT.
Main Methods:
- Analysis of 67 serum and 54 CSF samples from confirmed NC cases using ELISA-IgG, CFT, and IHAT.
- Determination of cut-off values using serum from 60 healthy individuals.
- Specificity testing against various helminthiasis and neurological conditions.
Main Results:
- ELISA-IgG showed high sensitivity: 97.0% for serum and 100% for CSF.
- The assay demonstrated a global specificity of 98.3%.
- ELISA-IgG was statistically significant (p < 0.05) compared to CFT.
Conclusions:
- ELISA-IgG using a purified antigen is a valuable tool for the immunodiagnosis of neurocysticercosis.
- Employing paired serum and CSF samples with ELISA-IgG can enhance diagnostic accuracy.
Abstract:
An analysis of immunodiagnosis data for human neurocysticercosis (NC) by ELISA-IgG, complement fixation test (CFT) and indirect hemagglutination test (IHAT) in 67 serum samples and 54 cerebrospinal fluids (CSF) from confirmed cases of different hospitals from the Metropolitan Area of Santiago, Chile, was performed. The cut-off value was determined by using serum samples from 60 apparently healthy persons, whose absorbance values were the mean plus three standard deviations. The sensitivity of ELISA was 97.0% and 100% for serum samples and CSF respectively. This assay was considered of statistical significance (p < 0.05) when it was compared with CFT. Specificity was established by testing a purified antigen over 109 different helminthiasis serum samples, 185 neurological affections other than NC and 60 control samples. A 98.3% of global specificity was found. The use of ELISA-IgG and a purified antigen in the approach of immune diagnosis of NC is considered a useful assay, particularly if it is performed on paired serum/CSF samples.
