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A Diagnostic Model for Distinguishing Between Active Tuberculosis and Latent Tuberculosis Infection Based on the Blood Expression Profiles of Autophagy-related Genes

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Publisher Sage Publications
Date 2023 Dec 22
PMID 38131281
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Abstract

Background: Autophagy is closely involved in the control of mycobacterial infection.

Objectives: Here, a diagnostic model was developed using the levels of autophagy-related genes (ARGs) in the blood to differentiate active tuberculosis (ATB) and latent tuberculosis infection (LTBI).

Design: Secondary data analysis of three prospective cohorts.

Methods: The expression of ARGs in patients with ATB and LTBI were analyzed using the GSE37250, GSE19491, and GSE28623 datasets from the GEO database.

Results: Twenty-two differentially expressed ARGs were identified in the training dataset GSE37250. Using least absolute shrinkage and selection operator and multivariate logistic regression, three ARGs (, and ) were found that were positively associated with adaptive immune-related lymphocytes and negatively associated with myeloid and inflammatory cells. A nomogram was constructed using the three ARGs. The accuracy, consistency, and clinical relevance of the nomogram were evaluated using receiver operating characteristic curves, the C-index, calibration curves, and validation in the datasets GSE19491 and GSE28623. The nomogram showed good predictive performance.

Conclusion: The nomogram was able to accurately differentiate between ATB and LTBI patients. These findings provide evidence for future study on the pathology of autophagy in tuberculosis infection.

Citing Articles

A modified multiple-criteria decision-making approach based on a protein-protein interaction network to diagnose latent tuberculosis.

Ayalvari S, Kaedi M, Sehhati M BMC Med Inform Decis Mak. 2024; 24(1):319.

PMID: 39478591 PMC: 11523813. DOI: 10.1186/s12911-024-02668-z.

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