Journal article

Plasma alpha-synuclein is decreased in subjects with Parkinson's disease

Qiao-Xin Li, Su San Mok, Katrina M Laughton, Catriona A McLean, Roberto Cappai, Colin L Masters, Janetta G Culvenor, Malcolm K Horne

EXPERIMENTAL NEUROLOGY | ACADEMIC PRESS INC ELSEVIER SCIENCE | Published : 2007

Abstract

Alpha-synuclein (alphaSN) is implicated in Parkinson's disease (PD) and is the major component of Lewy bodies (LBs). Although alphaSN is mainly expressed in neuronal cells and exists as a cytoplasmic protein, it has been found in body fluids including cerebrospinal fluid and blood. This study explored plasma alphaSN as a diagnostic marker for PD. Western blot analysis was used to characterize plasma alphaSN compared to brain alphaSN. Plasma alphaSN of 16 kDa migrates with the same mobility as its brain counterpart and recombinant alphaSN on denatured polyacrylamide gels and reacted with three different antibodies against the C-terminal and NAC regions of the alphaSN protein. The alphaSN leve..

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