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- W1994249908 abstract "In order to determine whether, besides the severe striatal dopamine (DA) loss, other brain neurotransmitter changes may be a constant biochemical feature of idiopathic Parkinson's disease (iPD), we measured the concentration of the three major brain monoamines noradrenaline (NA), DA, and serotonin (5-HT) and their metabolites in five rostro-caudal subdivisions of the hypothalamus of eight control patients and nine patients with morphologically confirmed iPD. In the whole hypothalamus of the iPD patients we found a mild to moderate mean reduction of NA(−52%, P < 0.05),DA(−25%),and5-HT(−26%). At the subregional level, the most consistently affected area was the intermediate subdivision of the hypothalamus proper where all three monoamines were statistically significantly reduced. Evaluation of individual patient values indicated that, in contrast to the constant and severe DA reduction present in putamen of each of the iPD patients (DA loss ranging from 96% to 99%), several of these patients had whole (and subregional) hypothalamic monoamine values well within the range of controls. We conclude that, although possibly involved in autonomic and/or endocrine disturbances in some patients with iPD, none of the observed monoamine changes in the hypothalamus is an obligatory feature of iPD. Our study demonstrates the need for evaluation of individual patient values rather than mean differences in order to permit valid conclusions to be drawn as to whether an observed neurochemical change can be regarded as specific to a given brain disorder." @default.
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- W1994249908 date "1994-03-01" @default.
- W1994249908 modified "2023-10-06" @default.
- W1994249908 title "Noradrenaline, dopamine and serotonin levels and metabolism in the human hypothalamus: observations in Parkinson's disease and normal subjects" @default.
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- W1994249908 doi "https://doi.org/10.1016/0006-8993(94)91761-2" @default.
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