A longitudinal study on α-synuclein in blood plasma as a biomarker for Parkinson's disease.

A longitudinal study on α-synuclein in blood plasma as a biomarker for Parkinson's disease.
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DOI:
10.1038/srep02540
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发表时间:
2013
期刊:
影响因子:
4.6
通讯作者:
Allsop D
Allsop D
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Foulds PG;Diggle P;Mitchell JD;Parker A;Hasegawa M;Masuda-Suzukake M;Mann DM;Allsop D

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There have been no longitudinal studies on α-synuclein as a potential biomarker for the progression of Parkinson's disease (PD). Here, blood plasma ‘total α-synuclein’ and ‘Ser-129 phosphorylated α-synuclein’ were assayed at 4–6 monthly intervals from a cohort of 189 newly-diagnosed patients with PD. For log-transformed data, plasma total α-synuclein levels increased with time for up to 20 yrs after the appearance of initial symptoms (p = 0.012), whereas phosphorylated α-synuclein remained constant over this same period. The mean level of phosphorylated α-synuclein, but not of total α-synuclein, was higher in the PD plasma samples taken at first visit than in single samples taken from a group of 91 healthy controls (p = 0.012). Overall, we conclude that the plasma level of phosphorylated α-synuclein has potential value as a diagnostic tool, whereas the level of total α-synuclein could act as a surrogate marker for the progression of PD.
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发表时间: 2012-11-16
期刊: Science (New York, N.Y.)
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