Journal of Neuroscience, Vol 1, 691-695, Copyright © 1981 by Society for Neuroscience
Selective retrograde labeling of cholinergic neurons with [3H]choline
P Bagnoli, A Beaudet, M Stella and M Cuenod
Evidence is presented which is consistent with a specific retrograde
labeling of cholinergic neurons following [3H]choline application in their
zone of termination. [3H]Choline injection in the rat hippocampus leads to
perikaryal retrograde labeling in the ipsilateral medial septal nuclease
and nucleus of the diagonal band, thus delineating an established
cholinergic pathway, while only diffuse presumably anterograde labeling was
observed in the lateral septum, the entorhinal cortex, and the opposite
hippocampus. After [3H]choline injection in the pigeon visual Wulst, only
the ipsilateral thalamic relay, of all inputs, showed similar perikaryal
retrograde labeling, an observation supporting the suggestion that at least
some thalamo-Wulst neurons are cholinergic.