Sodium channels in transient retinal bipolar cells enhance visual responses in ganglion cells.

@article{Ichinose2005SodiumCI,
  title={Sodium channels in transient retinal bipolar cells enhance visual responses in ganglion cells.},
  author={Tomomi Ichinose and Colleen R. Shields and Peter D. Lukasiewicz},
  journal={The Journal of neuroscience : the official journal of the Society for Neuroscience},
  year={2005},
  volume={25 7},
  pages={
          1856-65
        }
}
Retinal bipolar cells are slow potential neurons that respond to photoreceptor inputs with graded potentials and do not fire action potentials. We found that transient ON bipolar cells recorded in retinal slices possess voltage-gated sodium channels located on either their dendrites or somas. The sodium currents in these neurons did not generate spikes but enhanced voltage responses evoked by visual stimulation, which selectively boosted transmission to transient ganglion cells. In contrast… CONTINUE READING

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Voltagedependent sodium channels are expressed in nonspiking retinal bipolar cells

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