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@ARTICLE{Vieregge:282536,
author = {Vieregge, Magdalena and Kuzkina, Anastasia and Janzen,
Annette and Oertel, Wolfgang H. and Sommerauer, Michael and
Volkmann, Jens and Doppler, Kathrin},
title = {{D}ermal {A}lpha‐{S}ynuclein {A}ggregation in {S}eed
{A}mplification {A}ssays for {P}arkinson's {D}isease
{S}ubtype {D}ifferentiation},
journal = {European journal of neurology},
volume = {32},
number = {12},
issn = {1351-5101},
address = {Oxford [u.a.]},
publisher = {Wiley-Blackwell},
reportid = {DZNE-2025-01299},
pages = {e70453},
year = {2025},
abstract = {Skin biopsies and seed amplification assays (SAA) provide a
sensitive and potentially quantitative method to detect
alpha-synuclein (a-syn) aggregation in peripheral nerve
fibers in Parkinson's disease (PD). Relating to the
previously published hypothesis that PD may either originate
in the peripheral (body-first) or central (brain-first)
nervous system, we investigated whether patients with
clinical features that have been reported to be associated
with a suspected body-first subtype of PD exhibit higher
levels of a-syn aggregation in dermal nerve fibers compared
to those without these features. Patients with isolated REM
sleep behavior disorder (iRBD) representing a suspected
premotor stage of body-first PD were studied in comparison
to the PD cohort.Patients were categorized on the basis of
clinical features, and SAA parameters such as lag time,
number of positive curves, and titers were analyzed and
correlated with clinical features.Although patients with
clinical features of suspected body-first PD showed slightly
higher titers, significant differences were mainly observed
between iRBD patients and PD patients.Our data suggest that
widespread α-syn aggregation in advanced PD limits the use
of SAA in skin biopsies for subtype differentiation.},
keywords = {Humans / Parkinson Disease: metabolism / Parkinson Disease:
diagnosis / Parkinson Disease: classification / Parkinson
Disease: pathology / Parkinson Disease: complications /
alpha-Synuclein: metabolism / Male / Female / Aged / Skin:
metabolism / Skin: pathology / Skin: innervation / Middle
Aged / REM Sleep Behavior Disorder: metabolism / Parkinson's
disease (Other) / REM sleep behavior disorder (Other) /
alpha‐synuclein (Other) / seeding amplification assay
(Other) / skin biopsy (Other) / alpha-Synuclein (NLM
Chemicals)},
cin = {AG Petzold},
ddc = {610},
cid = {I:(DE-2719)1013020},
pnm = {353 - Clinical and Health Care Research (POF4-353)},
pid = {G:(DE-HGF)POF4-353},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:41316710},
pmc = {pmc:PMC12662814},
doi = {10.1111/ene.70453},
url = {https://pub.dzne.de/record/282536},
}