the projection of ventral pallidal neurons to the mediodorsal nucleus of the thalamus ( md ) was examined in rats by combined retrograde transport of horseradish peroxidase ( hrp ) after injections in the md and glutamate decarboxylase ( gad ) immunocytochemistry at light and electron microscopic levels , with and without prior exposure of the brains to colchicine .
C0228329
mediodorsal nucleus of
C0006104
brains