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Changes in the Monoamine Containing Neurones of the Human Cns in Senile Dementia

Published online by Cambridge University Press:  29 January 2018

D. M. A. Mann
Affiliation:
Department of Pathology, Stopford Building, University of Manchester, Oxford Road, Manchester M13 9PT
J. Lincoln
Affiliation:
Department of Pathology, Stopford Building, University of Manchester, Oxford Road, Manchester M13 9PT
P. O. Yates
Affiliation:
Department of Pathology, Stopford Building, University of Manchester, Oxford Road, Manchester M13 9PT
J. E. Stamp
Affiliation:
Department of Pathology, Stopford Building, University of Manchester, Oxford Road, Manchester M13 9PT
S. Toper
Affiliation:
Department of Pathology, Stopford Building, University of Manchester, Oxford Road, Manchester M13 9PT

Summary

In thirteen cases of senile dementia of the Alzheimer type severe loss of nerve cells from the locus caeruleus was frequently seen together with reductions in nucleolar volume and cytoplasmic RNA in surviving cells, averaging 14 and 21 per cent respectively. These histological findings were matched in two cases by biochemical measurements of loss of noradrenaline from all brain regions examined, ranging from 10 per cent in temporal cortex to 53 per cent in hypothalamus. By contrast, neither nucleolar volume nor cytoplasmic RNA was altered in cells of the substantia nigra, nor was dopamine content significantly altered in most regions. In vascular dementia neither noradrenaline nor dopamine metabolism was changed except in regions of local circulatory deficiency. These findings provide evidence of a primary degeneration of the noradrenergic system in Alzheimer type dementia.

Type
Research Article
Copyright
Copyright © The Royal College of Psychiatrists 

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Footnotes

Present address: Department of Pathology, Oostersingel, 63, 9730–EZ, Groningen, Nederlands.

††

Present address: Department of Structural Biology, St George's Hospital Medical School, Cranmer Terrace, Tooting, London SW17 0RE.

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