Calcium signaling at single mossy fiber presynaptic terminals in the rat hippocampus.

@article{Liang2002CalciumSA,
  title={Calcium signaling at single mossy fiber presynaptic terminals in the rat hippocampus.},
  author={Yong Liang and Li-Lian Yuan and Daniel Johnston and Richard Gray},
  journal={Journal of neurophysiology},
  year={2002},
  volume={87 2},
  pages={1132-7}
}
We investigated internal Ca(2+) release at mossy fiber synapses on CA3 pyramidal neurons (mossy fiber terminals, MFTs) in the hippocampus. Presynaptic Ca(2+) influx was induced by giving a brief train of 20 stimuli at 100 Hz to the mossy fiber pathway. Using Ca(2+) imaging techniques, we recorded the Ca(2+) response as DeltaF/F, which increased rapidly with stimulation, but was often accompanied by a delayed peak that occurred after the train. The rise in presynaptic [Ca(2+)] could be… CONTINUE READING
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