A metagenome-wide association study of gut microbiota in asthma in UK adults

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Background: Asthma, one of the most common chronic respiratory disorders, is associated with the hyper-activation of the T-cell subset of adaptive immunity. The gut microbiota may be involved in the development of asthma through the production of short-chain fatty acids (SCFAs), exhibiting modulatory effects on Th. So, we performed a metagenome-wide association study (MWAS) of the fecal microbiota from individuals with asthma and healthy controls. And that was the first case to resolve the relationship between asthma and microbiome among UK adults. Results: The microbiota of the individuals with asthma consisted of fewer microbial entities than the microbiota of healthy individuals. Faecalibacterium prausnitzii, Sutterella wadsworthensis and Bacteroides stercoris were depleted in cases, whereas Clostridiums with Eggerthella lenta were over-represented in individuals with asthma. Functional analysis shows that the SCFAs might be altered in the microbiota of asthma patients. Conclusion: In all, the adult human gut microbiome of asthma patients is clearly different from healthy controls. The functional and taxa results showed that the change of asthma patients might related to SCFAs.




Wang, Q., Li, F., Liang, B., Liang, Y., Chen, S., Mo, X., … Guo, R. (2018). A metagenome-wide association study of gut microbiota in asthma in UK adults. BMC Microbiology, 18(1). https://doi.org/10.1186/s12866-018-1257-x

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