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- W2021503315 abstract "A new CNS D-2 dopamine receptor imaging agent [125I]IBZM, (S)-3-[125I]-iodo-N-[(1-ethyl-2-pyrro-lidinyl)] methyl-2-hydroxy-6-methoxybenzamide, was prepared by either an exchange reaction or by the chloramine-T method. After an i.v. injection, the agent easily passed through the blood-brain barrier and localized in the rat brain. At 2, 15, 30 and 60 min after the injection, the brain uptake was 2.9, 2.3, 1.8 and 0.7% dose/organ, respectively. Regional uptake ratio of striatum/cerebellum (target to nontarget ratio) increased from 1.4 at 30 s to 10.3 at 2 h after the i.v. injection. Digital autoradiography of rat brain sections showed high regional uptake in the caudate putamen and accumbens nucleus, areas known to have a high concentration of the D-2 dopamine receptor. The specific uptake at the D-2 dopamine receptor site was blocked by pretreatment with spiperone, a selective D-2 antagonist. When labeled with 123I (t12 = 13 h, 159 keV), [123I]IBZM may be useful for imaging the CNS D-2 dopamine receptor." @default.
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- W2021503315 date "1988-01-01" @default.
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- W2021503315 title "Preparation and biodistribution of [125I]IBZM: A potential CNS D-2 dopamine receptor imaging agent" @default.
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- W2021503315 doi "https://doi.org/10.1016/0883-2897(88)90088-8" @default.
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