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- W1569558370 abstract "Alpha-synuclein plays a key role in the pathology of synucleinopathies including Parkinson's disease (PD) and multiple system atrophy (MSA). However, whether alpha-synuclein level in cerebrospinal fluid (CSF) could distinguish synucleinopathies from progressive supranuclear palsy (PSP) is still a contentious issue. A comprehensive literature search yielded nine eligible studies. We expressed the between-group difference of the concentration of alpha-synuclein in CSF as the standardized mean difference. The proportion of variation attributable to heterogeneity was computed and expressed as I(2) . Nine studies involved 537 controls, 843 PD, 130 MSA, and 98 PSP patients. The overall effect of PD on alpha-synuclein in CSF was significantly different from normal control or disease control (standardized mean difference = -0.67, P < 0.00001). These studies were heterogeneous (I(2) = 40%). Alpha-synuclein in CSF in MSA was significantly reduced relative to controls with heterogeneous studies (standardized mean difference = -0.75, P < 0.0001; I(2) = 62%). In contrast, no significant difference of alpha-synuclein in CSF was observed between PSP and controls with heterogeneous studies (standardized mean difference = -0.28, P = 0.13; I(2) = 53%). Alpha-synuclein in CSF was significantly reduced in synucleinopathies compared with PSP (PD vs. PSP: standardized mean difference = -0.38, P = 0.001; MSA vs. PSP: standardized mean difference = -0.66, P < 0.00001). The included studies were homogeneous (I(2) = 0%). Our study showed that alpha-synuclein levels in CSF in synucleinopathies was significantly lower than in PSP. This finding provides insights into the pathophysiological difference between synucleinopathies and PSP as well as possibility of development of a tool for differential diagnosis between MSA and PSP using enzyme-linked immunosorbent assay (ELISA) and similar methods." @default.
- W1569558370 created "2016-06-24" @default.
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- W1569558370 date "2014-09-25" @default.
- W1569558370 modified "2023-10-18" @default.
- W1569558370 title "Reduced alpha-synuclein in cerebrospinal fluid in synucleinopathies: Evidence from a meta-analysis" @default.
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- W1569558370 doi "https://doi.org/10.1002/mds.26036" @default.
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