Neuroscience

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Glowing Vulcan ears reveal brain’s lost neurons
These glowing shapes aren’t the ears of a rave-happy Vulcan - they’re slices from a mouse’s brain.
The slice on the right is from a mouse that lacks a gene called Arl13b - the same gene whose mutation causes Joubert syndrome in humans. This is a rare neurological condition that is linked with autism-spectrum disorders and brain structure malformations.
Without Arl13b, the nerve cells known as interneurons can’t find the right destination in the cerebral cortex during the brain’s development. Since the interneurons don’t end up in the right places, they can’t be wired up properly later on. This causes the disrupted brain development, typical of Joubert syndrome, visible in the image on the right.
The researchers hope that their findings will lead to better treatments for people who have the syndrome. 
"Ultimately, if you’re going to come up with therapeutic solutions, it’s important to understand the biology of the disease," says Eva Anton of the University of North Carolina in Chapel Hill, who worked on the research, which was published in Developmental Cell last week.

Glowing Vulcan ears reveal brain’s lost neurons

These glowing shapes aren’t the ears of a rave-happy Vulcan - they’re slices from a mouse’s brain.

The slice on the right is from a mouse that lacks a gene called Arl13b - the same gene whose mutation causes Joubert syndrome in humans. This is a rare neurological condition that is linked with autism-spectrum disorders and brain structure malformations.

Without Arl13b, the nerve cells known as interneurons can’t find the right destination in the cerebral cortex during the brain’s development. Since the interneurons don’t end up in the right places, they can’t be wired up properly later on. This causes the disrupted brain development, typical of Joubert syndrome, visible in the image on the right.

The researchers hope that their findings will lead to better treatments for people who have the syndrome. 

"Ultimately, if you’re going to come up with therapeutic solutions, it’s important to understand the biology of the disease," says Eva Anton of the University of North Carolina in Chapel Hill, who worked on the research, which was published in Developmental Cell last week.

Filed under Joubert syndrome genetic disorders interneurons brain neuroscience psychology science

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