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@ARTICLE{Kobeleva:280782,
author = {Kobeleva, Xenia and Rowe, Bryan and Choupan, Jeiran and
Ringman, John M and Barisano, Giuseppe and Leone, Riccardo},
title = {{A}lterations in {MRI}-visible perivascular spaces precede
dementia diagnosis by 18 years in autosomal dominant
{A}lzheimer's disease.},
journal = {Alzheimer's and dementia},
volume = {21},
number = {8},
issn = {1552-5260},
address = {Hoboken, NJ},
publisher = {Wiley},
reportid = {DZNE-2025-00966},
pages = {e70588},
year = {2025},
abstract = {Perivascular space (PVS) alterations are traditionally
linked to cardiovascular risk factors and aging, but may
also play a direct role in Alzheimer's disease (AD). To
reduce confounding from age-related comorbidities, we
examined PVSs in autosomal dominant AD (ADAD).In this
cross-sectional study of 96 non-demented individuals (62
mutation carriers), we quantified PVS count fraction and
mean diameter in white matter and basal ganglia using
automated magnetic resonance imaging analysis. Linear mixed
models assessed group differences along the disease course,
adjusting for cardiovascular risk factors.Compared to
non-carriers, mutation carriers showed lower PVS count
fraction in white matter and basal ganglia, and larger PVS
diameter in basal ganglia and the temporal lobe. Changes
were evident up to 18 years before expected dementia onset
and followed trajectories similar to amyloid beta 42 and tau
biomarkers.ADAD is associated with early PVS alterations,
suggesting perivascular changes may be integral to primary
AD pathology.Autosomal dominant Alzheimer's disease (ADAD)
mutation carriers have reduced magnetic resonance
imaging-visible perivascular space (PVS) count fraction in
the white matter and basal ganglia. ADAD mutation carriers
show enlarged PVS in the basal ganglia and temporal white
matter. PVS alterations start 18 years before the estimated
time of dementia diagnosis. The spatial localization of PVS
changes overlaps with regions of amyloid beta (Aβ)
accumulation. The temporal evolution of PVS alterations
aligns with Aβ and tau changes in the cerebrospinal fluid.},
keywords = {Humans / Male / Female / Magnetic Resonance Imaging /
Alzheimer Disease: genetics / Alzheimer Disease: pathology /
Alzheimer Disease: diagnostic imaging / Cross-Sectional
Studies / Middle Aged / White Matter: diagnostic imaging /
White Matter: pathology / Glymphatic System: diagnostic
imaging / Glymphatic System: pathology / Basal Ganglia:
pathology / Basal Ganglia: diagnostic imaging / Mutation:
genetics / Aged / Amyloid beta-Peptides: cerebrospinal fluid
/ tau Proteins: cerebrospinal fluid / Disease Progression /
Alzheimer's disease (Other) / autosomal dominant Alzheimer's
disease (Other) / cerebral small vessel disease (Other) /
dominantly inherited Alzheimer's disease (Other) / magnetic
resonance imaging (Other) / perivascular spaces (Other) /
Amyloid beta-Peptides (NLM Chemicals) / tau Proteins (NLM
Chemicals)},
cin = {AG Spottke / Clinical Research Platform (CRP) / Clinical
Research (Bonn)},
ddc = {610},
cid = {I:(DE-2719)1011103 / I:(DE-2719)1011401 /
I:(DE-2719)1011001},
pnm = {353 - Clinical and Health Care Research (POF4-353)},
pid = {G:(DE-HGF)POF4-353},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:40851076},
pmc = {pmc:PMC12375433},
doi = {10.1002/alz.70588},
url = {https://pub.dzne.de/record/280782},
}