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Updated: May 9, 2026

Identification of Mycobacterium Species by DNA Microarray Chip Method
Published on: June 24, 2025
[A comparative study of the gene chip technology and acid-fast staining or mycobacterial culture to diagnose]
Jian-Jun Deng1, Guo-Guang Xiao, Chao-Min Wan
1Department of Pediatrics, West China Second Hospital, Sichuan University, Chengdu 610041, China.
Objective:
To investigate the clinical value of mycobacterial DNA microarray technology for diagnosis of childhood tuberculosis.
Methods:
120 clinical specimens were collected from hospitalized child patients. Acid-fast staining, mycobacterial culture and DNA microarray assays were performed using these clinical specimens. The results of DNA microarray assays were compared with the results of acid-fast staining and mycobacterial culture.
Results:
The sensitivity of DNA microarray assays for specimens from children with tuberculosis was 24.3% (17/70), of acid-fast staining 17.1% (12/70), of mycobacterial culture 20.0% (14/70), and the specificity of the three methods was all 100.0% (50/50). The difference between results of DNA microarray assays and that of acid-fast staining or mycobacterial culture was not significant.
Conclusion:
DNA microarray assay has reference value for the diagnosis of childhood tuberculosis. It provides a new way for the diagnosis of childhood tuberculosis.
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