The microbiome is dispensable for normal respiratory function and chemoreflexes in mice
2024

The Role of the Microbiome in Breathing and Respiratory Function in Mice

Sample size: 52 publication 10 minutes Evidence: moderate

Author Information

Author(s): Lusk Savannah, Memos Nicoletta K., Rauschmayer Andrea, Ray Russell S.

Primary Institution: Baylor College of Medicine

Hypothesis

The lack of a microbiome has minimal effect on respiratory physiology.

Conclusion

The study suggests that microbiome alteration in mice may not significantly influence respiratory outcomes.

Supporting Evidence

  • Neonatal germ-free mice displayed significant differences in respiratory parameters compared to specific-pathogen-free controls.
  • Fecal transplants did not result in notable respiratory changes in adult mice.
  • Adult germ-free mice showed altered metabolic demand indicated by changes in oxygen consumption.

Takeaway

This study looked at mice without a microbiome and found that it didn't really change how they breathe, even when they were tested in different air conditions.

Methodology

The study used whole-body plethysmography to measure respiratory parameters in germ-free and specific-pathogen-free mice under various gas conditions.

Potential Biases

Potential bias due to the lack of randomization and blinding in the experimental design.

Limitations

The study did not explore the long-term effects of microbiome absence on respiratory health beyond the tested conditions.

Participant Demographics

The study involved adult and neonatal C57BL/6J mice, both germ-free and specific-pathogen-free.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.3389/fphys.2024.1481394

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