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Neurobiol Aging. 1981 Spring;2(1):9-14.

Cortical somatostatin-like immunoreactivity in cases of Alzheimer's disease and senile dementia of the Alzheimer type.


The activity of choline acetyltransferase (ChAT) and the concentration of somatostatin-like immunoreactive material (SLI) have been measured in 8 brain regions from 12 normal individuals and 12 cases of presenile and senile dementia of the Alzheimer type. ChAT activity was significantly lower in all 8 brain regions of demented patients and the SLI concentration was significantly reduced in 7 of the the 8. There were correlations between the extent of the reductions of ChAT activity and SLI concentration in four brain regions, and a greater reduction of parietal cortex SLI in younger patients than in the more elderly.

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