Striatal dopamine receptors in Alzheimer-type dementia
1984
Abstract Dopamine D 1 and D 2 receptors were studied in putamen of post-mortem brains from controls and patients with Alzheimer-type dementia (ATD). A significant reduction in dopamine D 2 receptors was observed in ATD, whereas dopamine D 1 receptors were unchanged. Neurochemical markers of striatal acetylcholine and GABA-containing neurones were also within the normal range. The results are consistent with a loss of D 2 receptors located on cortico-striatal neurones in putamen of some ATD patients. In contrast, markers of intrinsic neurones may remain unchanged.
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