Simulated poultry-house PM<sub>2.5</sub> exposure reveals a gut-lung axis mechanism of microbial propionate in protecting against pneumonia.
Appl Environ Microbiol · 2026 · PMC12915341 · PMID 41533337
1C ) and highly significant upregulation of IL-2, IL-6 , and IL-8 ( P < 0.01, Fig. 1C ).
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