Abstract
Aim: Tuberculosis meningitis (TBM) diagnosis is difficult, new biomarkers are needed. We evaluated the diagnostic utility of delta-like 1 protein (DLL1), vitamin D binding protein (VDBP) and fetuin. Methods: Biomarker concentrations were measured by ELISA in cryopreserved cerebrospinal fluid from 139 HIV-infected Ugandans with suspected meningitis. TBM was diagnosed by GeneXpert MTB/Rif or culture. Cohort diagnoses included TBM (n = 22), cryptococcal (n = 71), or aseptic meningitis (n = 16) and no meningitis (n = 30). Results: DLL1 (cut-off value 1150 pg/ml) provided 32% sensitivity and 98% specificity. Adding fetuin, cryptococcal antigen and IFN-γ resulted in sensitivities of 36, 63 and 76% with specificities of 98, 90 and 92%, respectively. VDBP (cut-off value 2.0 μg/ml) provided 81% sensitivity and 68% specificity while fetuin (cut-off value 2 μg/ml) provided a sensitivity of 86% and specificity of 68%. Conclusion: CSF DLL1, VDBP and fetuin exhibited fair diagnostic performance for TBM diagnosis.
Original language | English (US) |
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Pages (from-to) | 707-716 |
Number of pages | 10 |
Journal | Biomarkers in Medicine |
Volume | 12 |
Issue number | 7 |
DOIs | |
State | Published - Jul 2018 |
Bibliographical note
Publisher Copyright:© 2018 2018 Future Medicine Ltd.
Keywords
- Mycobacterium tuberculosis
- TB meningitis
- biomarkers