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  • Hesse, C (author)

Measurement of apolipoprotein E (apoE) in cerebrospinal fluid

  • Article/chapterEnglish2000

Publisher, publication year, extent ...

  • 2000

Numbers

  • LIBRIS-ID:oai:lup.lub.lu.se:7fb43502-0c38-48b8-ae8a-1ddef7b55b76
  • https://lup.lub.lu.se/record/1296886URI
  • https://doi.org/10.1023/A:1007516210548DOI

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  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • Apolipoprotein E (apoE) is a protein involved in transport of lipids and has been implicated to play an important role in regeneration after nerve injury. Determination of apoE in cerebrospinal fluid (CSF) thus have a potential interest when studying different forms of brain damage and as a marker of ongoing regenerative processes in the brain. However, previous studies on CSF-ApoE in Alzheimer's disease (AD) have given inconclusive results. Such inconsistent results might be related to confounding factors interfering with sample handling and/or analyses, which have not been fully elucidated. We therefore examined different potential confounding factors for analyses of apoE in CSF and also developed a new enzyme linked immunosorbent assay (ELISA). The hydrophobic character of ApoE resulted in adsorption to different types of test tubes commonly used for collection of CSF at lumbar puncture, resulting in falsely low levels. This makes CSF handling critical, especially if samples are taken in different types of tubes, or is transferred to new tubes. Taking this confounding factors in consideration and analysing patient and control CSF handled in the same way and using the new ELISA, we could confirm our previous finding of reduced levels of ApoE in AD, (3.4 +/- 1.3 mg/l) compared with controls (4.5 +/- 2.7 mg/l) (p = 0.045). Both in the AD and in the control group, higher levels of CSF-ApoE was found in individuals possessing the ApoE4 alleles. Our results support that CSF-ApoE is reduced in AD, and that handling of CSF is a critical factor, which may explain the discrepant results from previous studies. Differences in the amount of patients and controls possessing the ApoE4 allele included might also increase the variance between different studies.

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  • Larsson, H (author)
  • Fredman, P (author)
  • Minthon, LennartLund University,Lunds universitet,Klinisk minnesforskning,Forskargrupper vid Lunds universitet,Clinical Memory Research,Lund University Research Groups(Swepub:lu)psyk-lmi (author)
  • Andreasen, N (author)
  • Davidsson, P (author)
  • Blennow, K (author)
  • Klinisk minnesforskningForskargrupper vid Lunds universitet (creator_code:org_t)

Related titles

  • In:Neurochemical Research25:4, s. 511-5171573-6903

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Hesse, C
Larsson, H
Fredman, P
Minthon, Lennart
Andreasen, N
Davidsson, P
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Blennow, K
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About the subject
MEDICAL AND HEALTH SCIENCES
MEDICAL AND HEAL ...
and Basic Medicine
and Neurosciences
Articles in the publication
Neurochemical Re ...
By the university
Lund University

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