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@ARTICLE{Zhu:283122,
author = {Zhu, Zeyu and Steward, Anna and Dehsarvi, Amir and
Roemer-Cassiano, Sebastian N. and Dewenter, Anna and Biel,
Davina and Hirsch, Fabian and Frontzkowski, Lukas and
Pescoller, Julia and Klonowski, Madleen and Gnoerich,
Johannes and Pontecorvo, Michael J. and Shcherbinin, Sergey
and Schöll, Michael and Buckley, Rachel and Ossenkoppele,
Rik and Xie, Fang and Guo, Tengfei and Höglinger, Günter
and Brendel, Matthias and Franzmeier, Nicolai},
title = {{D}efining patient‐centered amyloid {PET} thresholds for
the onset of tauopathy in {A}lzheimer's disease},
journal = {Alzheimer's and dementia},
volume = {22},
number = {1},
issn = {1552-5260},
address = {Hoboken, NJ},
publisher = {Wiley},
reportid = {DZNE-2026-00018},
pages = {e71064},
year = {2026},
abstract = {Amyloid-induced tauopathy drives clinical decline in
Alzheimer's disease (AD). Because age and sex shape tau
trajectories, defining patient-centered amyloid thresholds
for tauopathy onset could facilitate pre-tauopathy AD
identification and aid treatment decisions and prognosis.By
including two samples (Alzheimer's Disease Neuroimaging
Initiative [ADNI, n = 301]; and 18F-AV-1451-A05 [A05, n =
143]), we explored whether age and sex affect tauopathy
transition and determined patient-centered amyloid positron
emission tomography (PET) thresholds that mark tauopathy
onset.We found a consistent amyloid PET × age interaction
on global tau PET increase in men (ADNI/A05: p =
0.0078/0.018), with younger men showing faster
amyloid-associated tau accumulation. We then established
patient-centered, amyloid PET-inferred tauopathy transition
cut-offs. Women reached this transition at lower amyloid PET
levels, and these cutoffs predicted both earlier onset and
accelerated cognitive decline (p < 0.001).This study
highlights the effect of age and sex on the
amyloid-to-tauopathy transition, establishes
patient-centered amyloid PET thresholds for tauopathy onset,
and links these thresholds to accelerated cognitive
decline.Younger age is related to faster amyloid-related tau
accumulation in men. We defined a series of amyloid positron
emission tomography (PET) thresholds to enable
patient-centered inference of amyloid-related tauopathy.
Crossing the amyloid PET-defined tauopathy phase is
associated with more progressive tau deposition and
cognitive decline.},
keywords = {Humans / Positron-Emission Tomography / Male / Alzheimer
Disease: diagnostic imaging / Alzheimer Disease: metabolism
/ Female / Tauopathies: diagnostic imaging / Tauopathies:
metabolism / Aged / tau Proteins: metabolism / Aged, 80 and
over / Amyloid: metabolism / Sex Factors / Age Factors /
Brain: diagnostic imaging / Brain: metabolism / Carbolines},
cin = {Clinical Research (Munich) / AG Haass},
ddc = {610},
cid = {I:(DE-2719)1111015 / I:(DE-2719)1110007},
pnm = {353 - Clinical and Health Care Research (POF4-353) / 352 -
Disease Mechanisms (POF4-352)},
pid = {G:(DE-HGF)POF4-353 / G:(DE-HGF)POF4-352},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:41485137},
doi = {10.1002/alz.71064},
url = {https://pub.dzne.de/record/283122},
}