Abstract:
:Amyloid-beta (Abeta) peptide pathology in Alzheimer's disease (AD) comprises extracellular plaques and cerebral amyloid angiopathy (CAA). In Parkinson's disease (PD), alpha-synuclein forms intraneuronal Lewy bodies (LBs), and cortical LBs are thought to play a major role in cognitive decline designated as PD with dementia. As there is increasing evidence that Abeta may also promote alpha-synuclein fibrillization, we assessed the relationship between LB pathology and Abeta deposition in 40 cases of PD and 20 age-matched controls. In five cortical areas, we established the severity of Abeta plaque load using an approach similar to that recommended by CERAD in AD. LB densities were determined using a morphometric approach. CAA was graded using previously described scales. The APOE genotype was established in 38 PD and 19 control cases. We have found that the overall Abeta plaque burden and, in particular, the diffuse plaque load shows a statistically significant 'large' correlation with the overall cortical LB burden. The strength of this correlation further increases in PD cases (about 50% of the cases) with moderate to high Abeta plaque load. The APOE epsilon4 allele is over-represented in this subgroup. Our data indicate a strong association between pathologically identifiable Abeta plaque burden and alpha-synuclein load in cerebral cortex and provide indirect evidence that Abeta pathology is likely to be an important factor contributing to cognitive decline in a subgroup of PD patients.
journal_name
Acta Neuropatholjournal_title
Acta neuropathologicaauthors
Lashley T,Holton JL,Gray E,Kirkham K,O'Sullivan SS,Hilbig A,Wood NW,Lees AJ,Revesz Tdoi
10.1007/s00401-007-0336-0subject
Has Abstractpub_date
2008-04-01 00:00:00pages
417-25issue
4eissn
0001-6322issn
1432-0533journal_volume
115pub_type
杂志文章abstract::Microglia are long-living resident immune cells of the brain, which secure a stable chemical and physical microenvironment necessary for the proper functioning of the central nervous system (CNS). These highly dynamic cells continuously scan their environment for pathogens and possess the ability to react to damage-in...
journal_title:Acta neuropathologica
pub_type: 杂志文章,评审
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abstract::Frontotemporal lobar degeneration with TDP-43 inclusions (FTLD-TDP) can typically be categorized into one of four distinct histopathologic patterns of TDP-43 pathology, types A to D. The strength of this histopathologic classification lies in the association between FTLD-TDP subtypes and various clinical and genetic f...
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journal_title:Acta neuropathologica
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doi:10.1007/pl00007417
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journal_title:Acta neuropathologica
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journal_title:Acta neuropathologica
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journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00334445
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journal_title:Acta neuropathologica
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doi:10.1007/BF00334497
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journal_title:Acta neuropathologica
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journal_title:Acta neuropathologica
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更新日期:2004-11-01 00:00:00
abstract::In hereditary myopathy of the diaphragmatic muscles in Holstein-Friesian cattle, the largest number of acidophilic intracytoplasmic inclusions was found in the myocardium. These inclusions, which were oval and measured 12-15 microm in the transverse sections, were characterized by a dense, amorphous zone, and a relati...
journal_title:Acta neuropathologica
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journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/s00401-002-0589-6
更新日期:2002-12-01 00:00:00
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journal_title:Acta neuropathologica
pub_type: 杂志文章
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journal_title:Acta neuropathologica
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journal_title:Acta neuropathologica
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journal_title:Acta neuropathologica
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journal_title:Acta neuropathologica
pub_type: 杂志文章
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journal_title:Acta neuropathologica
pub_type: 杂志文章
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pub_type: 杂志文章
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