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Fish have a brain microbiome – could humans have one too?
The discovery that other vertebrates have healthy, microbial brains is fueling the still controversial possibility that we might have them as well.
Recently, a study published in Science Advances provided the strongest evidence yet that a brain microbiome can and does exist in healthy vertebrates — fish, specifically. 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. 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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