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Alpha-synuclein dimerization in erythrocytes of patients with genetic and non-genetic forms of Parkinson's Disease. | LitMetric

Alpha-synuclein dimerization in erythrocytes of patients with genetic and non-genetic forms of Parkinson's Disease.

Neurosci Lett

Center of Clinical Research, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece; 2nd Department of Neurology, Attikon Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece. Electronic address:

Published: April 2018

AI Article Synopsis

Article Abstract

Background: Variations of α-synuclein levels or species have been reported in Parkinson's Disease (PD). There has been little systematic examination of erythrocytes, a rich source of α-synuclein.

Methods: Erythrocyte membranes were obtained from PD patients (mutation carriers in the α-synuclein gene (A53T-PD) and glucocerebrosidase gene (GBA-PD) (n=18 each), and patients without known mutations (GU-PD, n=56)), and age-/sex-matched controls (n=56). Levels of monomeric and dimeric α-synuclein were assessed using Western immunoblotting.

Results: A statistically significant increase of α-synuclein dimer and dimer to monomer ratio was found in GBA-PD and GU-PD. In contrast, dimer levels of A53T-PD were not different from controls. No difference was found in α-synuclein monomer levels.

Conclusions: The increased α-synuclein dimer in GBA-PD and GU-PD is suggestive of an apparent systemic dysfunction causing the dimerization, and potentially oligomerization, of α-synuclein. These results may have implications for PD pathogenesis and biomarker development.

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Source
http://dx.doi.org/10.1016/j.neulet.2017.11.012DOI Listing

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