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Microbiome in sputum as a potential biomarker of chronicity in pulmonary resistant to rifampicin-tuberculosis and multidrug-resistant-tuberculosis patients

Background: Cases of tuberculosis (TB) and multidrug-resistant TB (MDR-TB) in South-east Asia including Indonesia are still high. The presence of mixed infections in TB cases has been reported. Several studies revealed the role of the human microbiome in TB. This study purposes to characterize microbiome which can be a potential biomarker of chronicity in TB or MDR-TB. Methods: Sputum samples of pulmonary TB patients confirmed MDR-TB and resistant to rifampicin TB (RR-TB) were conducted Metagenomic next-generation sequencing. Principal coordinate analysis of UniFrac's showing the community structure of microbiome in MDR-TB comorbid diabetes mellitus (DM) is different from RR-TB noncomorbid DM (P = 0.003). Results: Proteobacteria microbiome in MDR-TB comorbid DM was more abundant than in RR-TB noncomorbid DM. Actinobacteria found in the small quantity in RR-TB and MDR-TB. Diversity of microbiome genera was greater in RR-TB. The linear discriminant analysis effect size analysis represents a genus biomarker whose abundance shows significant differences between groups, genus Rothia as a potential biomarker for RR-TB noncomorbid DM. Conclusions: Interesting findings is the community structure of microbiome in MDR-TB and RR-TB. In chronic TB such as recurrent, associated MDR-TB should attention to the findings of a small number of Actinobacteria could be a biomarker of TB which is also a determinant in patient taking combined anti-TB drugs of choice.