Large Vessel Cerebral Atherosclerosis Is Not in Direct Association with Neuropathological Lesions of Alzheimer’s DiseaseLuoto T.M. · Haikonen S. · Haapasalo H. · Goebeler S. · Huhtala H. · Erkinjuntti T. · Karhunen P.J.
aDepartment of Forensic Medicine, University of Tampere, bDepartment of Pathology, Tampere University Hospital, cSchool of Public Health, University of Tampere, Tampere, and dDepartment of Neurology, Helsinki University Central Hospital, Helsinki, Finland
Introduction: Cerebral hypoperfusion caused by large vessel atherosclerosis has been suggested to be associated with the pathogenesis of sporadic Alzheimer’s disease (AD). Atherosclerosis and AD share risk factors such as age, diabetes, hypercholesterolemia, hypertension and apolipoprotein E ε4 (APOE ε4) allele. We studied the association between atherosclerosis of the circle of Willis (CW) and AD neuropathology in a large autopsy sample. Methods: The present study comprised a consecutive autopsy series (n = 466) representing noninstitutionalized general population aged 50 years and over (mean 70.8, SD 11.5 years). The atherosclerosis of CW was scored semiquantitatively and the amyloid plaque (AP) load in the frontal cortex and the number of neurofibrillary tangles (NFT) in the hippocampus were measured. Results: In a linear regression model, AP percentage area was associated with age (p < 0.0001) and APOE ε4 allele (p < 0.0001), but not with CW score (p = 0.70) or gender (p = 0.11). Similarly, the NFT count was predicted only by age (p > 0.0001), and not by CW score (p = 0.36), gender (p = 0.41) or APOE ε4 allele (p = 0.072). Conclusion: Our results suggest that cerebral large vessel atherosclerosis is not in direct association with APs or NFTs – hallmarks of AD neuropathology.
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Received: January 5, 2009
Accepted: April 2, 2009
Published online: June 12, 2009
Number of Print Pages : 6
Number of Figures : 3, Number of Tables : 1, Number of References : 24
Vol. 62, No. 2, Year 2009 (Cover Date: July 2009)
Journal Editor: Bogousslavsky J. (Montreux)
ISSN: 0014-3022 (Print), eISSN: 1421-9913 (Online)
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