AII amacrine neurons of the rat retina show diurnal and circadian rhythms of parvalbumin immunoreactivity

@article{Gabriel2004AIIAN,
  title={AII amacrine neurons of the rat retina show diurnal and circadian rhythms of parvalbumin immunoreactivity},
  author={Robert Gabriel and Joseph LeSauter and Tam{\'a}s B{\'a}nv{\"o}lgyi and Gy{\"o}rgy Petrovics and Rae Silver and Paul Witkovsky},
  journal={Cell and Tissue Research},
  year={2004},
  volume={315},
  pages={181-186}
}
We investigated parvalbumin immunoreactivity (PA-IR) in the retinas of rats maintained on a 12:12 h light:dark cycle, or after being placed in constant darkness for 24–72 h. Retinas were harvested at zeitgeber and circadian times 02:00, 06:00, 10:00, 14:00, 18:00 and 22:00 h. PA-IR was found primarily in retinal amacrine cells of the AII subtype. In a light/dark cycle, PA-IR showed a clear rhythm, with a low near zeitgeber time (ZT) 10:00 h and a peak near ZT 18:00 h. The ratio of… CONTINUE READING
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