Menu

Blog

Dec 29, 2020

Astrocytes Eat Connections to Maintain Plasticity in Adult Brains

Posted by in category: neuroscience

Summary: Astrocytes, not microglia, are responsible for constantly eliminate unnecessary and excessive adult synaptic connections in response to brain activity.

Source: KAIST

Developing brains constantly sprout new neuronal connections called synapses as they learn and remember. Important connections — the ones that are repeatedly introduced, such as how to avoid danger — are nurtured and reinforced, while connections deemed unnecessary are pruned away. Adult brains undergo similar pruning, but it was unclear how or why synapses in the adult brain get eliminated.

Leave a reply