Back

Acute targeted induction of gut-microbial metabolism disrupts host circadian rhythm

Greter, G.; Oswald, S.; Kuenzli, D.; Lan, J.; Slack, E.; Arnoldini, M.

2023-06-20 microbiology
10.1101/2023.06.20.545777 bioRxiv
Show abstract

The gut microbiota and host circadian clock mutually influence each other, and microbiota metabolism has been shown to play a role in regulating host circadian function via secretion of fermentation products. Microbial metabolism is dependent on the availability of nutrients for the microbiota, typically through the hosts food intake, making it challenging to disentangle the effect of host and microbiota metabolism. In this study, we acutely induced gut microbial metabolic activity without inducing host metabolism in mice. We found that increasing microbial metabolism in the gut altered circadian clock gene expression locally. Actuating microbiota metabolism also reduced host food intake beyond the calories provided by the microbiota, suggesting a systemic signaling effect of microbial metabolism on the host.

Matching journals

The top 7 journals account for 50% of the predicted probability mass.

50% of probability mass above

"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.