L-glutamate specific [3H]kainic acid binding in the rat neostriatum after degeneration of the cortico-striatal pathway.

Four weeks after lesion of the cortico-striatal pathway, the specific kainic acid binding was reduced by 20% in the neostriatum. It is concluded that the binding sites are most likely not located on cortico-striatal neurons. The displacement of kainic acid by some chemical indicates that the kainic acid binding site is different from the glutamate binding site, as defined iontophoretically.