Volume 21, Issue 2 pp. e78-e82

White Matter Lesion Load Increases the Risk of Low CSF Aβ42 in Apolipoprotein E-ɛ4 Carriers Attending a Memory Clinic

Vidar Stenset MD

Vidar Stenset MD

From the Departments of Neurology (VS, LJ, TF), Radiology (AEB, AN), and Multidisciplinary Medical Laboratory (AS), Akershus University Hospital, Lørenskog, Norway; Faculty Division, Akershus University Hospital, University of Oslo, Oslo, Norway (VS, TF); Department of Neurosurgery, Oslo University Hospital Ullevål, Oslo, Norway (VS); Helse Øst Health Services Research Centre, Akershus University Hospital, University of Oslo, Oslo, Norway (DH), Department of Neurology, Oslo University Hospital Rikshospitalet (LG), Oslo, Norway; and Medical Faculty, University of Oslo, Oslo, Norway (LG).

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Dag Hofoss PhD

Dag Hofoss PhD

From the Departments of Neurology (VS, LJ, TF), Radiology (AEB, AN), and Multidisciplinary Medical Laboratory (AS), Akershus University Hospital, Lørenskog, Norway; Faculty Division, Akershus University Hospital, University of Oslo, Oslo, Norway (VS, TF); Department of Neurosurgery, Oslo University Hospital Ullevål, Oslo, Norway (VS); Helse Øst Health Services Research Centre, Akershus University Hospital, University of Oslo, Oslo, Norway (DH), Department of Neurology, Oslo University Hospital Rikshospitalet (LG), Oslo, Norway; and Medical Faculty, University of Oslo, Oslo, Norway (LG).

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Lisbeth Johnsen MSc

Lisbeth Johnsen MSc

From the Departments of Neurology (VS, LJ, TF), Radiology (AEB, AN), and Multidisciplinary Medical Laboratory (AS), Akershus University Hospital, Lørenskog, Norway; Faculty Division, Akershus University Hospital, University of Oslo, Oslo, Norway (VS, TF); Department of Neurosurgery, Oslo University Hospital Ullevål, Oslo, Norway (VS); Helse Øst Health Services Research Centre, Akershus University Hospital, University of Oslo, Oslo, Norway (DH), Department of Neurology, Oslo University Hospital Rikshospitalet (LG), Oslo, Norway; and Medical Faculty, University of Oslo, Oslo, Norway (LG).

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Audun Elnaes Berstad MD, PhD

Audun Elnaes Berstad MD, PhD

From the Departments of Neurology (VS, LJ, TF), Radiology (AEB, AN), and Multidisciplinary Medical Laboratory (AS), Akershus University Hospital, Lørenskog, Norway; Faculty Division, Akershus University Hospital, University of Oslo, Oslo, Norway (VS, TF); Department of Neurosurgery, Oslo University Hospital Ullevål, Oslo, Norway (VS); Helse Øst Health Services Research Centre, Akershus University Hospital, University of Oslo, Oslo, Norway (DH), Department of Neurology, Oslo University Hospital Rikshospitalet (LG), Oslo, Norway; and Medical Faculty, University of Oslo, Oslo, Norway (LG).

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Anne Negaard MD, PhD

Anne Negaard MD, PhD

From the Departments of Neurology (VS, LJ, TF), Radiology (AEB, AN), and Multidisciplinary Medical Laboratory (AS), Akershus University Hospital, Lørenskog, Norway; Faculty Division, Akershus University Hospital, University of Oslo, Oslo, Norway (VS, TF); Department of Neurosurgery, Oslo University Hospital Ullevål, Oslo, Norway (VS); Helse Øst Health Services Research Centre, Akershus University Hospital, University of Oslo, Oslo, Norway (DH), Department of Neurology, Oslo University Hospital Rikshospitalet (LG), Oslo, Norway; and Medical Faculty, University of Oslo, Oslo, Norway (LG).

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Anders Skinningsrud MD

Anders Skinningsrud MD

From the Departments of Neurology (VS, LJ, TF), Radiology (AEB, AN), and Multidisciplinary Medical Laboratory (AS), Akershus University Hospital, Lørenskog, Norway; Faculty Division, Akershus University Hospital, University of Oslo, Oslo, Norway (VS, TF); Department of Neurosurgery, Oslo University Hospital Ullevål, Oslo, Norway (VS); Helse Øst Health Services Research Centre, Akershus University Hospital, University of Oslo, Oslo, Norway (DH), Department of Neurology, Oslo University Hospital Rikshospitalet (LG), Oslo, Norway; and Medical Faculty, University of Oslo, Oslo, Norway (LG).

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Leif Gjerstad MD, PhD

Leif Gjerstad MD, PhD

From the Departments of Neurology (VS, LJ, TF), Radiology (AEB, AN), and Multidisciplinary Medical Laboratory (AS), Akershus University Hospital, Lørenskog, Norway; Faculty Division, Akershus University Hospital, University of Oslo, Oslo, Norway (VS, TF); Department of Neurosurgery, Oslo University Hospital Ullevål, Oslo, Norway (VS); Helse Øst Health Services Research Centre, Akershus University Hospital, University of Oslo, Oslo, Norway (DH), Department of Neurology, Oslo University Hospital Rikshospitalet (LG), Oslo, Norway; and Medical Faculty, University of Oslo, Oslo, Norway (LG).

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Tormod Fladby MD, PhD

Tormod Fladby MD, PhD

From the Departments of Neurology (VS, LJ, TF), Radiology (AEB, AN), and Multidisciplinary Medical Laboratory (AS), Akershus University Hospital, Lørenskog, Norway; Faculty Division, Akershus University Hospital, University of Oslo, Oslo, Norway (VS, TF); Department of Neurosurgery, Oslo University Hospital Ullevål, Oslo, Norway (VS); Helse Øst Health Services Research Centre, Akershus University Hospital, University of Oslo, Oslo, Norway (DH), Department of Neurology, Oslo University Hospital Rikshospitalet (LG), Oslo, Norway; and Medical Faculty, University of Oslo, Oslo, Norway (LG).

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First published: 24 March 2011
Citations: 8
Correspondence: Address correspondence to Vidar Stenset, MD, Department of Neurosurgery, Oslo University Hospital Ullevål, Kirkeveien 166, 0407 Oslo, Norway. E-mail: [email protected].

J Neuroimaging 2011;21:e78-e82.

Abstract

ABSTRACT

BACKGROUND

White matter lesions (WMLs) are age-related manifestations of ischemic cerebrovascular disease and increase the risk for Alzheimer's disease (AD). The apolipoprotein E (ApoE) ɛ4 allele is a risk factor for late onset AD and has been related to low cerebrospinal fluid (CSF) Aβ42 levels and to cerebrovascular disease. The present study analyzed the relationship between WMLs, ApoE-ɛ4 genotype, and low CSF Aβ42.

METHODS

A total of 235 memory clinic attenders were stratified in 3 groups according to WML load. WMLs were rated on axial T2 magnetic resonance imaging images. Group 1 had no or only small amounts of periventricular (PV) or subcortical (SC) WMLs, WML group 2 had high amounts of PV WMLs and low amounts of SC WMLs, and WML group 3 had high amounts of both PV and SC WMLs. In each WML group, ApoE-ɛ4 genotype was used in logistic regression as a predictor for low CSF Aβ42 (cutoff ≤450 ng/L). Results: The odds ratio (OR) of having low CSF Aβ42 was significantly increased in the presence of ApoE-ɛ4 only in WML group 3 (OR 3.69, P= .009).

CONCLUSION

A high WML load may interact with the ApoE-ɛ4 genotype and increase the risk for reduced CSF Aβ42 in patients attending a memory clinic.

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