Gut bacteria polyamine linked to longer fruit fly lifespan in study
A study in fruit flies linked gut bacteria that produce putrescine to a longer average lifespan in males. It is early animal research, with no direct evidence in humans.
Source: Gut bacteria's polyamine extends fruit fly lifespan in study (journals.asm.org). Summary written with AI from the source and reviewed by rules; read the original.
What the research shows
The study used fruit flies colonized by genetically modified E. coli, a bacterium that produces putrescine, a polyamine. In these animals, the presence of these bacteria was associated with a longer average lifespan in males: about 13.8 days, compared with 11.0 days in the comparison group. According to the publication, this is an animal study, not a treatment for people.
These are preliminary results. An association in flies does not prove that the same mechanism works in humans, and the link between gut microbiota and longevity is still being investigated. The work helps explain how substances made in the gut might influence aging, but there is currently no direct evidence in people.
What it means
The result suggests that substances produced by gut bacteria may influence lifespan in fruit flies. It is not yet known whether this effect occurs in humans or which mechanisms might be involved.
How to read it with care
This result does not replace a medical consultation. Anyone considering a change in diet, supplements or treatment should talk to a doctor or another qualified health professional.