01 June 2010
Comparative evaluation of a PCR assay with an in-house ELISA method for diagnosis of Tuberculous meningitis
Khushboo J. NagdevABCEF, Rajpal S. KashyapACDE, Poonam S. DeshpandeAB, Hemant J. PurohitDE, Girdhar M. TaoriBFG, Hatim F. DaginawalaACDEMed Sci Monit 2010; 16(6): CR289-295 :: ID: 880612
Abstract
Background: Despite the availability of many investigational methods, diagnosis of Tuberculous meningitis (TBM) is extremely difficult. Polymerase chain reaction (PCR), using specific primers for Mycobacterium tuberculosis (MTB), shows variable sensitivity and specificity. In this study, we assessed the usefulness of the PCR assay for TBM diagnosis and compared it to our in-house enzyme-linked immunosorbent assay (ELISA) based on antigen 85 complex detection.
Material/Methods: Cerebrospinal fluid (CSF) samples were obtained from 189 patients in 3 different groups: confirmed TBM (n=13), clinically suspected TBM (n=37), and non-TBM (n=139). A PCR assay was performed using a specific pair of primers designed to amplify the insertion sequence IS6110 in the MTB genome, and it was compared to ELISA, using monoclonal antibodies against the purified Ag 85 complex, to analyze CSF samples and diagnose TBM.
Results: The PCR assay yielded sensitivity and specificity values of 80% and 84%, which are slightly less, but comfortable to the values obtained for the ELISA method (84% and 91%). Interestingly, a combinatorial approach using both methods provided sensitivity and specificity of 88% and 93%.
Conclusions: The PCR assay was found to be as sensitive and specific as the well-established in-house ELISA technique, suggesting that it can be used for TBM diagnosis.
Keywords: Mycobacterium tuberculosis - metabolism, Enzyme-Linked Immunosorbent Assay - methods, DNA Primers - genetics, Child, Chemistry, Clinical - methods, Case-Control Studies, Adolescent, Polymerase Chain Reaction - methods, Sensitivity and Specificity, Tuberculosis, Meningeal - diagnosis
Editorial
01 August 2022 : Editorial
Editorial: Long-Term Effects of Symptomatic and Asymptomatic SARS-CoV-2 Infection in Children and the Changing Pathogenesis of Common Childhood Viruses Driven by the COVID-19 PandemicDOI: 10.12659/MSM.937927
Med Sci Monit 2022; 28:e937927
In Press
12 Aug 2022 : Clinical Research
Risk Factors and Pathogen Spectrum in Continuous Ambulatory Peritoneal Dialysis-Associated Peritonitis: A S...Med Sci Monit In Press; DOI: 10.12659/MSM.937112
11 Aug 2022 : Meta-Analysis
Optimal Surgical Treatment Method for Anterior Cruciate Ligament Rupture: Results from a Network Meta-AnalysisMed Sci Monit In Press; DOI: 10.12659/MSM.937118
10 Aug 2022 : Review article
Programmed Cell Death in Diabetic Nephropathy: A Review of Apoptosis, Autophagy, and NecroptosisMed Sci Monit In Press; DOI: 10.12659/MSM.937766
10 Aug 2022 : Database Analysis
Use and Effects of Augmentation of Labor with Oxytocin: A Single-Center, Retrospective, Case-Control Study ...Med Sci Monit In Press; DOI: 10.12659/MSM.937557
Most Viewed Current Articles
30 Dec 2021 : Clinical Research
Retrospective Study of Outcomes and Hospitalization Rates of Patients in Italy with a Confirmed Diagnosis o...DOI :10.12659/MSM.935379
Med Sci Monit 2021; 27:e935379
13 Nov 2021 : Clinical Research
Acceptance of COVID-19 Vaccination and Its Associated Factors Among Cancer Patients Attending the Oncology ...DOI :10.12659/MSM.932788
Med Sci Monit 2021; 27:e932788
08 Mar 2022 : Review article
A Review of the Potential Roles of Antioxidant and Anti-Inflammatory Pharmacological Approaches for the Man...DOI :10.12659/MSM.936292
Med Sci Monit 2022; 28:e936292
01 Nov 2020 : Review article
Long-Term Respiratory and Neurological Sequelae of COVID-19DOI :10.12659/MSM.928996
Med Sci Monit 2020; 26:e928996