ArticleMicrobiology spectrum2026
Diabetes affects the composition of the respiratory tract microbiome and transcriptome in patients with viral pneumonia.
Article in Microbiology spectrum, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Research shows that patients with viral pneumonia complicated by diabetes have a worse prognosis and higher mortality. Our study aimed to assess the effect of diabetes on respiratory tract microbes and the transcriptome in patients with viral pneumonia. We included 76 subjects from China-Japan Friendship Hospital, including 16 healthy people, 17 patients with viral pneumonia and diabetes (VD), and 43 patients with viral pneumonia without diabetes (VP). We collected their sputum samples for both metagenomic and 16S rRNA sequencing and collected blood samples for RNA sequencing. In transcriptome analysis, the VD group downregulated the expression of PTCH1 and upregulated the expression of ANK1, RBM38, BPGM, CRYM, TAL1, and HBD. The differential pathways are mainly reflected in the formation, development, and maintenance of red blood cells, the activity of immunoglobulins, and the membrane transport and transportation of substances. There is a significant difference in microbial diversity between the two groups. Both analysis methods demonstrate a significant increase in the abundance of IMPORTANCE: We used 16S rRNA and metagenome sequencing to analyze the respiratory microbial composition of patients with viral pneumonia complicated by diabetes (VD) and patients with viral pneumonia without diabetes (VP) and used transcriptome sequencing to compare the gene expression of patients in VD, VP, and healthy people. Our results indicate significant differences in gene expression and respiratory microbiota profiles between VD and VP. VD may inhibit the immune regulatory response and affect cell energy metabolism and oxygen transport and utilization by regulating related gene pathways. The abundance of
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