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Could Humans Have a Brain Microbiome?
The discovery that other vertebrates have healthy, microbial brains is fueling the still controversial possibility that we might have them as well.
Still, “it certainly puts another weight on the scale to think about whether this is relevant to mammals and us,” said Christopher Link, who studies the molecular basis of neurodegenerative disease at the University of Colorado, Boulder and was also not involved in the work. The human gut microbiome plays a critical role in the body, communicating with the brain and maintaining the immune system through the gut-brain axis. Biologists recently probed the brains of healthy salmonids, including rainbow trout (left) and Alaskan Chinook salmon (right), and discovered they were home to living microbes.
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