Neuroscience

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astrocytes

GIFT GIVER  Star-shaped astrocytes (green) may donate mitochondria to nerve cells in distress, helping the brain escape damage from stroke and possibly other maladies, a new study suggests. 

Alzheimer’s plaques in human brain

PLAQUE FIGHTER  A long dose of antibiotics reduced Alzheimer’s-related plaques (shown here in a human brain) in the brains of mice, results that suggest gut bacteria can influence the disease. 

brain map

MAPPING NEW TERRITORY  Each side of the outer layer of the human brain can be parceled into 180 distinct areas, a new analysis suggests. 

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