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@ARTICLE{Streit:282599,
author = {Streit, Simon and Meinhardt, Jenny and Gimber, Niclas and
Kestenbach, John and Siewert, Christin and Schmoranzer, Jan
and Meisel, Christian and Ruprecht, Klemens and Heppner,
Frank L and Körtvélyessy, Péter and Stenzel, Werner},
title = {{N}eurofilament light chain as a marker of peripheral nerve
damage in vasculitic neuropathy? {A} cross-compartmental
correlation analysis in patients undergoing nerve biopsy.},
journal = {Brain pathology},
volume = {36},
number = {1},
issn = {1015-6305},
address = {Oxford},
publisher = {Wiley-Blackwell},
reportid = {DZNE-2025-01357},
pages = {e70038},
year = {2025},
abstract = {Vasculitic neuropathy remains challenging to diagnose and
monitor because of its heterogeneous clinical and laboratory
presentation. Blood-based biomarkers indicating nerve damage
could serve as an additional diagnostic tool to ensure early
diagnosis, precise therapeutic monitoring, and a more
targeted anti-inflammatory treatment. A potential marker for
this purpose is neurofilament light chain (NfL), a marker of
neuroaxonal damage that is used as a biomarker in several
diseases of the central and peripheral nervous system. NfL
has also been suggested to reflect disease activity in
patients with vasculitic neuropathy. However, its
biodynamics and link to degeneration of peripheral nerve
tissue remain unconfirmed. To investigate the usefulness of
NfL as a marker of peripheral nerve damage in this context,
we retrospectively assembled a cohort of 35 patients
undergoing sural nerve biopsies (including patients with
vasculitic neuropathy and other neuropathies). We then
measured NfL in serum samples cryoarchived at the time of
biopsy and correlated NfL levels with histological
parameters. For our histological analysis, we quantified
parameters of acute axonal degeneration and chronic axonal
loss using a combination of manual, threshold-based, and
supervised learning-based analyses. We found a significant
positive correlation between parameters of acute axonal
degeneration and serum-NfL levels that persisted after
adjusting for age and concomitant central nervous system
disease. We did not find a similar correlation with
parameters of chronic axonal loss quantified in nerve
biopsies. These findings support the value of NfL as a
marker for acute axonal degeneration in patients with
vasculitic neuropathy.},
keywords = {biomarker (Other) / histopathology (Other) / nerve biopsy
(Other) / neurofilament light chain (NfL) (Other) /
vasculitic neuropathy (Other) / vasculitis (Other)},
cin = {AG Heppner / AG Düzel},
ddc = {610},
cid = {I:(DE-2719)1810007 / I:(DE-2719)5000006},
pnm = {353 - Clinical and Health Care Research (POF4-353)},
pid = {G:(DE-HGF)POF4-353},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:40935795},
doi = {10.1111/bpa.70038},
url = {https://pub.dzne.de/record/282599},
}