Zebrafish blood-brain barrier (IMAGE)
Caption
When researchers injected fluorescent dye (blue) into the circulatory system of a zebrafish with a spock1 mutation, the dye leaked out of blood vessels (pink) in the forebrain and midbrain (left), but stayed relatively confined within the hindbrain (right), revealing a blood-brain barrier that was permeable in some areas but not others.
Credit
Natasha O’Brown
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