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Neurological Sciences

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21-03-2022 | Parkinson's Disease | Review Article

Real-time quaking-induced conversion assay is accurate for Lewy body diseases: a meta-analysis

Authors: Yashan Wang, Jiayi Hu, Xiaofei Chen, Song Wang, Chenyang Zhang, Junjun Hu, Dingjie Guo, Xin Liu

Published in: Neurological Sciences | Issue 7/2022

Abstract

Objective

Real-time quaking-induced conversion (RT-QuIC) is a novel in vitro acellular seed amplification analysis and has been widely used to detect prion diseases. Due to the similar mechanism of abnormal aggregation of α-synuclein, RT-QuIC has great potential for diagnosing Lewy body diseases. This meta-analysis was performed to evaluate the diagnostic accuracy of RT-QuIC for Lewy body diseases.

Methods

This study followed the PRISMA statement. We searched six databases for relevant studies published until February 20, 2022. Meta-analysis was conducted using RevMan 5.3, Stata 17.0, and Meta-Disc 1.4. Subgroup analyses were performed to explore sources of heterogeneity.

Results

A total of 16 studies were included in this study. The pooled sensitivity and specificity were 0.91 (95%CI: 0.85–0.94) and 0.95 (95%CI: 0.90–0.97), respectively. The pooled positive and negative likelihood ratios were 17.16 (95% CI: 9.16–32.14) and 0.10 (95% CI: 0.06–0.17), respectively. The pooled diagnostic odds rate and area under the summary receiver operating characteristic curve were 171.16 (95% CI: 66.64–439.62) and 0.97 (95% CI: 0.96–0.99), respectively.

Conclusions

This study was the first meta-analysis on RT-QuIC for Lewy body diseases. RT-QuIC is a reliable and accurate method to diagnose Lewy body diseases.

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Title: Real-time quaking-induced conversion assay is accurate for Lewy body diseases: a meta-analysis
Authors: Yashan Wang
Jiayi Hu
Xiaofei Chen
Song Wang
Chenyang Zhang
Junjun Hu
Dingjie Guo
Xin Liu
Publication date: 21-03-2022
Publisher: Springer International Publishing
Keyword: Parkinson's Disease
Published in: Neurological Sciences / Issue 7/2022
Print ISSN: 1590-1874
Electronic ISSN: 1590-3478
DOI: https://doi.org/10.1007/s10072-022-06014-x

At a glance: The STEP trials

Springer Medicine

Real-time quaking-induced conversion assay is accurate for Lewy body diseases: a meta-analysis

Abstract

Objective

Methods

Results

Conclusions

At a glance: The STEP trials

Springer Medicine

Abstract

Objective

Methods

Results

Conclusions

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