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Association of Clusterin Levels in Cerebrospinal Fluid with Synaptic Degeneration Across the Alzheimer’s Disease Continuum

Authors Wang J, Zhang X, Zhu B, Fu P

Received 26 July 2019

Accepted for publication 20 December 2019

Published 20 January 2020 Volume 2020:16 Pages 183—190


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Editor who approved publication: Dr Jun Chen

Jun Wang,* Xin Zhang,* Bihong Zhu, Pan Fu On the behalf of Alzheimer’s Disease Neuroimaging Initiative

Department of Neurology, Taizhou First People’s Hospital, Zhejiang, People’s Republic of China

*These authors contributed equally to this work

Correspondence: Pan Fu
Department of Neurology, Taizhou First People’s Hospital, 218 Hengjie Road, Huangyan District, Taizhou City, Zhejiang Province, People’s Republic of China

Purpose: Although emerging evidence has suggested that clusterin is involved in the pathogenesis of Alzheimer’s disease (AD), the association of clusterin with synaptic degeneration in living human is unclear. In the present study, we aimed to examine the association of CSF clusterin levels with synaptic degeneration in individuals with different severities of cognitive impairment.
Patients and Methods: In the present study, we compared levels of clusterin in CSF among individuals with normal cognition (NC), mild cognitive impairment (MCI), and AD. Further, linear regression models were performed to examine the association of CSF clusterin with neurogranin (NG, reflecting synaptic degeneration) with adjustment of several potential confounders.
Results: We found that CSF clusterin levels were positively correlated with NG in the NC and MCI groups, but not the AD group. In all subjects, linear regression models suggested that clusterin levels were positively associated with NG levels independent of age, gender, apolipoprotein E4 (APOE4) genotype, clinical diagnosis, and CSF Aβ 42 levels.
Conclusion: Our data indicated that clusterin was associated with CSF NG levels among older individuals with different severities of cognitive impairment.

Keywords: clusterin, neurogranin, synaptic degeneration, Alzheimer’s disease, mild cognitive impairment

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