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@ARTICLE{Masebo:280058,
author = {Masebo, Lehané and Whitfield, Tim and Demnitz-King,
Harriet and Heslegrave, Amanda and Poisnel, Géraldine and
Lutz, Antoine and Frison, Eric and Wirth, Miranka and Hye,
Abdul and Jessen, Frank and Ashton, Nicholas J. and
Zetterberg, Henrik and Marchant, Natalie L.},
title = {{C}an non-pharmacological interventions change levels of
neurofilament light in older adults at risk of dementia? {A}
secondary analysis of the {SCD}-{W}ell randomized clinical
trial},
journal = {The journal of prevention of Alzheimer's disease},
volume = {12},
number = {8},
issn = {2274-5807},
address = {Cham},
publisher = {Springer International Publishing},
reportid = {DZNE-2025-00895},
pages = {100299},
year = {2025},
abstract = {Older adults with subjective cognitive decline (SCD) and/or
elevated neurofilament light (NfL), a neurodegeneration
biomarker, are at increased risk of dementia.
Non-pharmacological interventions offer a promising strategy
for reducing dementia risk, yet none have utilized NfL as a
marker of response in dementia prevention trials.To
investigate the effects of two non-pharmacological
interventions on NfL in older adults with SCD.SCD-Well was
an 8-week observer-blinded, randomized, clinical trial with
6-month follow-up, and was a part of the Horizon 2020
European Union-funded 'Medit-Ageing' project. Data were
analyzed from June 2022 to August 2024.Memory clinics at
four sites in France, Germany, Spain, and UK.Participants
were enrolled from March 2017 to January 2018 after
fulfilling SCD research criteria and performing within the
normal range on cognitive testing. Of the 147 participants
enrolled, 140 were included in this secondary analysis (7
did not consent to venipuncture).Participants were randomly
allocated to the Caring Mindfulness-Based Approach for
Seniors (CMBAS) intervention or a structurally matched
Health Self-Management Program (HSMP).Plasma NfL was
measured at baseline (V1), post-intervention (V2), and
6-month follow-up (V3), using Single molecule array
technology, and log-transformed for analyses.137 older
adults with SCD provided NfL data (mean [SD] age: 72.7 [6.8]
years; 62.0 $\%$ female; CMBAS, n = 70; HSMP, n = 67). NfL
data were available at V1 (n = 136), V2 (n = 119) and V3 (n
= 115). The visit-by-arm interaction was not statistically
significant, and no significant changes in NfL were observed
within the CMBAS or HSMP arms from V1 to V2. However, within
the HSMP arm, NfL levels reduced from V1 to V3 (-0.10, 95
$\%$ confidence interval [-0.18 to -0.02]). Modified
intention-to-treat analyses, which included 140
participants, supported these findings, and additionally
recorded significant reductions in the HSMP arm from V1 to
V2 (n = 140, -0.07 [-0.14 to -0.00]).In this study, NfL
levels were reduced at 6-month follow-up after a health
self-management program. Future interventions with longer
duration, extended follow-up and clinical endpoints will
help clarify whether NfL reductions are sustained over
extended timeframes and translate to lower dementia
incidence.ClinicalTrials.gov Identifier: (NCT03005652).},
keywords = {Behavior change (Other) / Blood (Other) / Blood-based
biomarkers (Other) / Fluid biomarkers (Other) /
Psychological intervention (Other)},
cin = {AG Wirth / AG Jessen},
ddc = {610},
cid = {I:(DE-2719)1710011 / I:(DE-2719)1011102},
pnm = {353 - Clinical and Health Care Research (POF4-353)},
pid = {G:(DE-HGF)POF4-353},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:40683836},
doi = {10.1016/j.tjpad.2025.100299},
url = {https://pub.dzne.de/record/280058},
}