UBC Research Data

Data from: Changes in the bacterial microbiota in gut, blood, and lungs following acute LPS instillation into mice lungs Sze, Marc A.; Tsuruta, Masashi; Yang, Shun-Wei Julia; Oh, Yeni; Man, S. F. Paul; Hogg, James C.; Sin, Don D.


Introduction: Previous reports have shown that the gastrointestinal (GI) bacterial microbiota can have profound effects on the lungs, which has been described as the “gut-lung axis”. However, whether a “lung-gut” axis exists wherein acute lung inflammation perturbs the gut and blood microbiota is unknown. Methods: Adult C57/Bl6 mice were exposed to one dose of LPS or PBS instillation (n = 3 for each group) directly into lungs. Bacterial microbiota of the bronchoalveolar lavage fluid, blood, and cecum were determined using 454 pyrotag sequencing and quantitative polymerase chain reaction (qPCR) at 4 through 168 hours post-instillation. We then investigated the effects of oral neomycin and streptomycin (n = 8) on the microbiota at 4 and 24 hours post LPS instillation versus control treatment (n = 5 at baseline and 4 hours, n = 7 at 24 hours). Results: At 24 hours post LPS instillation, the total bacterial count was significantly increased in the cecum (P; Usage notes
sequence_data454 sequencing files after shhh.flows and trim,seqs commands have been implemented. No chimera removal has been done yet on these files. Their are also group files and name files associated with each respective fasta file.

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