An astrocyte bridge from synapse to blood flow

@article{Parri2003AnAB,
  title={An astrocyte bridge from synapse to blood flow},
  author={Rheinallt Parri and Vincenzo Crunelli},
  journal={Nature Neuroscience},
  year={2003},
  volume={6},
  pages={5-6}
}
Neural activity locally increases cerebral blood flow to deliver oxygen to working neurons. A new paper shows that astrocytes can detect activity at glutamatergic synapses via calcium changes in astrocytic endfeet and directly couple it to blood flow in vitro and in vivo. 
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