Highlights
- •A case–control study about UCH-L1 in serum and urine of patients with WMLs
- •Serum UCH-L1 levels were independently associated with the severity of WMLs.
- •Urine UCH-L1 levels were similar between WML group and controls.
- •Serum UCH-L1 levels in S-WML group were higher than P-WML group.
Abstract
Objectives
Ubiquitin carboxy-terminal hydrolase-L1 (UCH-L1) has been established as a potential
biomarker of neuronal damage. There is not much information about the effects of white
matter lesions (WMLs) on serum and urine UCH-L1 levels in white matter disease patients.
This study was aimed to assess whether serum or urine UCH-L1 levels are a reliable
marker of brain damage in patients with WMLs.
Design and methods
Serum and urine levels of UCH-L1 were assessed in 125 patients with dizziness, hypertension,
type 2 diabetes mellitus, or dyslipidemia. Of these 125 patient cases, 41 showed periventricular
WMLs (P-WMLs), 46 showed subcortical WMLs (S-WMLs), and 38 displayed no well-defined
WMLs (controls).
Results
Serum UCH-L1 levels were significantly different between the WML group and controls
(p < 0.05). Further subgroup analysis proved that serum UCH-L1 levels in participants with
S-WMLs were significantly increased when compared with controls (p < 0.001), but there was no significant differences between controls and patients with
P-WMLs (p > 0.05). However, urine levels of UCH-L1 were similar between these three groups (p > 0.05). In addition, multivariate analysis showed that increased serum UCH-L1 levels
were independently associated with the severity of WMLs using Fazekas scale (β = 0.432, p < 0.001).
Conclusions
These findings suggest that serum UCH-L1 levels may serve as a novel biomarker for
neuronal damage from WMLs, especially S-WMLs.
Keywords
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Article info
Publication history
Published online: July 23, 2015
Accepted:
July 21,
2015
Received in revised form:
June 17,
2015
Received:
February 6,
2015
Identification
Copyright
© 2015 Elsevier B.V. Published by Elsevier Inc. All rights reserved.