Gut Microbiota Influences Blood-Brain Barrier Permeability

Blood-Brain Barrier

I’ve experienced the changes in my own blood brain barrier with the changes in my own microbiome first-hand but it is fun to see some studies backing me up.


Gut microbiota influences blood-brain barrier permeability

A new study in mice, conducted by researchers at Sweden’s Karolinska Institutet together with colleagues in Singapore and the United States, shows that our natural gut-residing microbes can influence the integrity of the blood-brain barrier, which protects the brain from harmful substances in the blood. According to the authors, the findings provide experimental evidence that our indigenous microbes contribute to the mechanism that closes the blood-brain barrier before birth. The results also support previous observations that gut microbiota can impact brain development and function.