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Author Rossor, M. N. ♦ Iversen, L. L. ♦ Reynolds, G. P. ♦ Mountjoy, C. Q. ♦ Roth, M.
Source British Medical Journal (The BMJ)
Content type Text
Publisher British Medical Journal Publishing Group
File Format HTM / HTML
Language English
Abstract Brains of 49 patients who had died with Alzheimer's disease and 54 controls were examined. The Alzheimer group exhibited noticeably reduced activity of the cholinergic marker enzyme choline acetyltransferase in the cerebral cortex, but cortical concentrations of noradrenaline, gamma-aminobutyric acid, and somatostatin were also significantly reduced. Analysis of the results according to age at death showed that the older patients, dying in their 9th and 10th decades, had a relatively pure cholinergic deficit confined to temporal lobe and hippocampus, together with a reduced concentration of somatostatin confined to temporal cortex. By contrast, the younger patients, dying in their 7th and 8th decades, had a widespread and severe cholinergic deficit together with the abnormalities of noradrenaline, gamma-aminobutyric acid, and somatostatin, and the younger patients accounted for most of the abnormalities in these systems observed in the overall group. Comparison of the young subjects with Alzheimer's disease with the older controls did not support the concept of Alzheimer's disease representing an acceleration of the aging process. These results suggest that Alzheimer's disease in people aged under 80 may represent a distinct form of presenile dementia which differs in important respects from the dementia of old age.
Description Citation Reference: British Medical Journal (Clinical Research Ed.)
ISSN 00071447
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Learning Resource Type Article
Publisher Date 1984-03-31
e-ISSN 14685833
Journal British Medical Journal (The BMJ)
Volume Number 288
Issue Number 6422
Page Count 4
Starting Page 961
Ending Page 964


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Source: British Medical Journal (The BMJ)