Distribution of trigeminothalamic and spinothalamic-tract neurons showing substance P receptor-like immunoreactivity
J L Li1, Y Q Ding, R Shigemoto
1Department of Morphological Brain Science, Faculty of Medicine, Kyoto University, Japan.
Brain Research
|May 6, 1996
Abstract:
Trigeminothalamic and spinothalamic-tract neurons provided with substance P receptor (SPR) were examined in the rat by SPR immunofluorescence histochemistry combined with Fluoro-Gold (FG) fluorescent retrograde labeling. After FG injection in the thalamic regions, FG-labeled cells with SPR-like immunoreactivity were seen mainly in laminae I and III of the medullary and spinal dorsal horns and lateral spinal nucleus. In these regions, about one-fourth to one-third of FG-labeled cells showed SPR-like immunoreactivity.
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