Abstract
We investigated the effect of reserpine treatment on the striatal uptake of a radiolabeled dopamine D2-like receptor ligand nemonapride (NEM). In mice, the uptake of the [3H]NEM in the striatum, cortex and cerebellum was enhanced by the reserpine pretreatment. Neither the ratio of striatum to cerebellum nor that to cortex was affected by the reserpine pretreatment. In rats,ex vivo autoradiography showed no effect of the reserpine treatment on the striatal uptake of [11C]NEM or the striatum to cortex ratio. The results suggest that the receptor binding of NEM was not significantly influenced by reserpine-induced depletion of endogenous dopamine probably because of its high affinity for the receptors.
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Ishiwata, K., Onoguchi, K., Toyama, H. et al. Effects of reserpine treatment on the dopamine receptor binding of [3H/11C]nemonapride in the mouse and rat brain. Ann Nucl Med 11, 21–26 (1997). https://doi.org/10.1007/BF03164753
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DOI: https://doi.org/10.1007/BF03164753