Related Experiment Video
Updated: Jun 12, 2026
07:15
An In Vitro Batch-culture Model to Estimate the Effects of Interventional Regimens on Human Fecal Microbiota
Published on: July 31, 2019
Gut microbes compensate for protein-deficient diets
Nathaniel Carlson1, Jack D Jurmu1, Maria Denise Dearing1
1School of Biological Sciences, University of Utah, 257S 1400E, Salt Lake City, UT 84112, USA.
Trends in Microbiology
|June 10, 2026
Summary
The gut microbiome significantly enhances deer mouse diet quality by producing essential amino acids. These amino acids are absorbed by the host and integrated into muscle tissue, boosting nutritional status.
Area of Science:
- Microbiome research
- Animal physiology
- Nutritional science
Background:
- The gut microbiome plays a crucial role in host nutrition.
- Understanding nutrient contribution from microbial symbionts is vital for host health.
Purpose of the Study:
- To investigate the gut microbiome's role in improving deer mouse diet quality.
- To quantify the contribution of microbial amino acid synthesis to host nutrition.
Main Methods:
- Utilized natural variation in carbon stable isotope signatures.
- Performed amino acid-specific analysis.
- Coupled isotopic and amino acid data to trace nutrient sources.
Main Results:
- Demonstrated significant production of essential amino acids by the gut microbiome.
- Showed absorption of these microbially produced amino acids by the deer mouse host.
- Confirmed incorporation of these amino acids into host muscle tissue, indicating a direct nutritional benefit.
Conclusions:
- The gut microbiome substantively contributes to improving deer mouse diet quality.
- Microbial amino acid synthesis is a key mechanism for enhancing host nutrition and muscle development.
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