Lifelong Consumption Of Freeze-Dried Parabacteroides Distasonis Improves Gut Barrier Integrity And Extends Lifespan And Health Span In Drosophila Melanogaster
As we age, our bodies often experience chronic inflammation, particularly in the gut, which can lead to a breakdown of the gut barrier. This barrier is crucial for preventing harmful substances from leaking out of the intestines and causing further issues. Recent research has explored how a specific beneficial bacterium, Parabacteroides distasonis, might combat these age-related declines.
In a study using fruit flies, a common model for aging research, scientists found that feeding them freeze-dried Parabacteroides distasonis throughout their lives had remarkable effects. The flies lived longer and maintained better physical abilities, such as climbing, as they aged. Crucially, this beneficial bacterium also improved the integrity of their gut barrier, making it more robust against age-related damage.
Further investigation revealed that the improved health and extended lifespan in these flies were linked to changes in gene activity within their gut tissue. Specifically, there was an increase in the expression of genes involved in DNA replication and maintaining the stability of the genetic material. This suggests that the bacterium might be promoting healthy aging by boosting the gut’s ability to repair its DNA, thereby preventing the breakdown of the gut barrier and its associated inflammatory processes. These findings open new avenues for understanding how gut microbes can influence healthy aging.
Source: link to paper