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Related Experiment Video

Updated: May 3, 2026

Author Spotlight: Obtaining High-Quality CSF and Blood Samples for Epilepsy Biomarker Discovery

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Published on: September 1, 2023

Time-dependent decrease of clusterin as a potential cerebrospinal fluid biomarker for drug-resistant epilepsy.

Weihua Yu¹, Dan Chen, Zhihua Wang

¹Institute of Neuroscience, Chongqing Medical University, Chongqing, 400016, China.

Journal of Molecular Neuroscience : MN

|February 4, 2014

Summary

Clusterin (CLU) levels in cerebrospinal fluid are reduced in epilepsy patients. Lower CLU may indicate drug-resistant epilepsy and serve as a potential biomarker.

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Area of Science:

Neuroscience
Biochemistry
Epilepsy Research

Background:

Previous proteomic analysis indicated decreased clusterin (CLU) in epilepsy patient cerebrospinal fluid (CSF).
Clusterin's role in epilepsy pathogenesis requires further investigation.

Purpose of the Study:

To confirm reduced CSF clusterin (CLU) levels in drug-resistant and drug-responsive epilepsy.
To investigate CLU alterations in a rat model of epilepsy.

Main Methods:

Measured CSF and serum CLU concentrations in 52 epilepsy patients and 20 controls.
Assessed neuronal CLU expression in rat hippocampus post-pilocarpine-induced status epilepticus (SE).

Main Results:

CSF CLU levels were significantly lower in both drug-resistant and drug-responsive epilepsy patients compared to controls.
Drug-resistant epilepsy patients exhibited lower CSF CLU concentrations than drug-responsive patients.
Neuronal CLU expression decreased over time in rats following SE.

Conclusions:

Clusterin (CLU) is decreased in the CSF of human epilepsy patients.
This reduction is mirrored in an epilepsy rat model, suggesting CLU's involvement in epilepsy.
CLU may be a potential CSF biomarker for identifying drug-resistant epilepsy.