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Faecalibacterium prausnitzii Indicates Healthspan and Lifespan in Nonhuman Primates
Kylie Kavanagh1, Taylor Sheridan2, Ravichandra Vemuri3
1Department of Pathology, Wake Forest University School of Medicine, Winston-Salem, NC, United States of America; College of Health and Medicine, University of Tasmania, Hobart, Australia.
The Journal of Nutrition, Health & Aging
|September 24, 2025
Summary
Higher levels of fecal Faecalibacterium prausnitzii indicate better health resiliency and longer lifespans in nonhuman primates. This gut microbe may serve as a biomarker for a healthier microbiome and improved longevity.
Area of Science:
- Microbiome research
- Gut health
- Aging and longevity
Background:
- Faecalibacterium prausnitzii is a key gut microbe.
- Its role in health resiliency is not fully understood.
- Nonhuman primate models offer insights into human health.
Purpose of the Study:
- To investigate the association between fecal Faecalibacterium prausnitzii abundance and health resiliency.
- To determine if Faecalibacterium prausnitzii levels predict outcomes in radiation-induced and age-related diseases.
Main Methods:
- Fecal samples from nonhuman primates were analyzed for Faecalibacterium prausnitzii levels using whole genome sequencing or PCR.
- Evaluated health outcomes included survival after irradiation, lifespan, and incidence of Type 2 diabetes.
- Demographic and metabolic data (age, weight, glycemic indices) were also collected.
Main Results:
- Nonhuman primates with higher fecal Faecalibacterium prausnitzii levels exhibited increased survival after irradiation and longer lifespans.
- Elevated levels were associated with protection against Type 2 diabetes.
- Type 2 diabetes development led to a decrease in Faecalibacterium prausnitzii abundance.
Conclusions:
- Fecal Faecalibacterium prausnitzii abundance is a potential biomarker for a resilient microbiome.
- This species may predict superior health outcomes and increased lifespan.
- Further research can explore therapeutic strategies targeting Faecalibacterium prausnitzii.
