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Fish Brain Microbiomes Discovered
- Researchers discovered thriving bacterial communities in fish brains, challenging assumptions about brain sterility.
- These microbes show special adaptations for brain survival and crossing the blood-brain barrier.
Nasal Bacteria and Fish Brain Colonization
- Irene Salinas suspected nasal bacteria might colonize nearby fish brain regions.
- Contrary to her hypothesis, all brain parts harbored bacteria, with some areas having higher levels than nasal ones.
How Bacteria Cross the Brain Barrier
- Fish brain bacteria likely colonize early before the blood-brain barrier forms fully.
- Some bacteria produce molecules allowing them to cross and evade the brain's defenses.