A population-based study of tau protein and ubiquitin in cerebrospinal fluid in 85-year-olds: Relation to severity of dementia and cerebral atrophy, but not to the apolipoprotein E4 allele

被引：65

作者：

Skoog, I

Vanmechelen, E

Andreasson, LA

Palmertz, B

Davidsson, P

Hesse, C

Blennow, K

机构：

[1] GOTHENBURG UNIV, DEPT CLIN NEUROSCI, PSYCHIAT SECT, S-41124 GOTHENBURG, SWEDEN

[2] INNOGENET NV, GHENT, BELGIUM

[3] OSTRA HOSP, DEPT RADIOL, S-41685 GOTHENBURG, SWEDEN

[4] GOTHENBURG UNIV, DEPT CLIN NEUROSCI, NEUROCHEM UNIT, S-41124 GOTHENBURG, SWEDEN

来源：

NEURODEGENERATION | 1995年 / 4卷 / 04期

关键词：

Alzheimer's disease; apolipoprotein E; biochemical markers; cerebral atrophy; cerebrospinal fluid; computerized tomography of the brain; dementia; epidemiological methods; leukoaraiosis; tau protein; vascular dementia;

D O I：

10.1006/neur.1995.0052

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Alzheimer's disease (AD) is the most common form of dementia, and is characterized by a degeneration of neurones and their synapses, and a higher number of senile plaques (SP) and neurofibrillary tangles (NFT) compared with that found in non-demented individuals of the same age. NFT are composed of a hyperphosphorylated and ubiquitinated form of tau protein. Previous studies have found that in the cerebrospinal fluid (CSF) both tau and ubiquitin are increased in AD. We examined CSF-tau and CSF-ubiquitin in a population based sample of 85-year-olds, 26 demented (11 with probable Alzheimer's disease (AD), 13 with probable vascular dementia (VAD) and 2 with mixed (AD/VAD) type of dementia) and 35 non-demented individuals. CSF-tau was significantly higher both in the probable AD group (254 +/- 113 pg/mL; P < 0.01), and in the probable VAD group (247 +/- 75 pg/mL; P < 0.005), than in the non-demented group (171 +/- 78 pg/mL), but did not significantly differ between the probable AD and probable VAD groups. In contrast, CSF-ubiquitin did not significantly differ between the probable AD (100 +/- 24 ng/mL), probable VAD (102 +/- 16 ng/mL), and non-demented (97 +/- 27 ng/mL) groups. CSF-tau increased with increasing severity of dementia (P < 0.001), though no such relation was found for CSF-ubiquitin. Neither CSF-tau nor CSF-ubiquitin differed between patients with or without the apolipoprotein E E4 isoform. Higher CSF-tau and CSF-ubiquitin levels were also associated with increasing degree of cortical and central brain atrophy as measured by computerized tomography. The relationships between CSF-tau and severity of dementia and to brain atrophy suggest that CSF-tau may be used as a measure of neuronal/axonal degeneration in patients with dementia. We have previously shown a marked increase in both CSF-tau and CSF-ubiquitin in younger patients with AD and VAD. The less pronounced increase in CSF-tau and the lack of difference in CSF-ubiquitin in older patients suggest that the severity of the degenerative process is less in older than in younger demented patients. (C) 1995 Academic Press Limited.

引用

页码：433 / 442

页数：10

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