Bacteria found in the human intestine capable of improving muscle strength
16 hours ago
- #aging
- #gut-muscle axis
- #probiotic
- Researchers identified an intestinal bacterium of the Roseburia genus, particularly Roseburia inulinivorans, linked to increased muscle strength and physical fitness in humans.
- The study suggests an intestine-muscle axis, where this bacterium positively influences muscle metabolism, with lower levels observed in older adults compared to younger ones.
- Experiments in mice showed that treatment with human strains of Roseburia increased grip strength by about 30% and led to larger, more fast-twitch muscle fibers.
- Findings open the possibility of developing probiotics to preserve muscle strength during aging, although human strains did not permanently colonize mice and long-term research is needed.
- The research involved analysis of stool samples and fitness tests from young and older adults, with results published in the journal Gut and funded by multiple institutions.