Factors determining the morphology of β-amyloid (Aβ) deposits in Down's syndrome

Armstrong, Richard A. (1995). Factors determining the morphology of β-amyloid (Aβ) deposits in Down's syndrome. Experimental Neurology, 4 (2), pp. 179-186.


Immunostained preparations of the medial temporal lobe from patients with Down's syndrome (DS) were counterstained with cresyl violet to reveal the β-amyloid (Aβ) deposits and their associated cell populations. Aβ deposits in the cornu Ammonis (CA) of the hippocampus were, on average, more strongly stained, less often directly associated with neurons and more often associated with glial cells than the adjacent areas of cortex. Cored deposits were more frequently recorded in sulci rather than gyri and were associated with more glial cells than the uncored deposits. Multiple regression analyses suggested there was a positive correlation in the cortex between Aβ deposit size and the frequency of closely associated neurons, the correlation being most significant with larger (>25 μm) neurons. The morphology of Aβ deposit was also correlated with the location of deposits in the cortex, CA and dentate gyrus but this factor was of lesser importance. No significant variation in the morphology of the Aβ deposits was associated with the presence of blood vessels within or adjacent to the deposit. The data suggest that neuronal cell bodies are important in the initial formation of Aβ deposits and glial cells with the development of more mature amyloid deposits.

Publication DOI: https://doi.org/10.1006/neur.1995.0022
Divisions: Life & Health Sciences > Optometry
Life & Health Sciences > Ophthalmic Research Group
Life & Health Sciences
Uncontrolled Keywords: Aβ deposit morphology,cell bodies,Down's syndrome,glial cells,multiple regression,neurons,Clinical Neurology,Pathology and Forensic Medicine,Neuropsychology and Physiological Psychology
Full Text Link:
Related URLs: http://www.scopus.com/inward/record.url?scp=0029009571&partnerID=8YFLogxK (Scopus URL)
Published Date: 1995-06
Authors: Armstrong, Richard A. ( 0000-0002-5046-3199)


Item under embargo.

Export / Share Citation


Additional statistics for this record