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@ARTICLE{Hhnel:282968,
author = {Hähnel, Tom and More, Shammi and Hoffstaedter, Felix and
Patil, Kaustubh R and Fröhlich, Holger and Falkenburger,
Björn H},
title = {{B}rain age gap as predictor of disease progression in
{P}arkinson's disease.},
journal = {npj Parkinson's Disease},
volume = {11},
number = {1},
issn = {2373-8057},
address = {[London]},
publisher = {Springer Nature},
reportid = {DZNE-2025-01420},
pages = {353},
year = {2025},
abstract = {Parkinson's disease (PD) exhibits high heterogeneity in
disease progression, complicating management and increasing
required sample sizes for clinical trials. This study
evaluates Brain Age Gap (BAG)-the difference between brain
age and chronological age-for predicting disease progression
in PD. Structural MRI-derived gray matter volumes were
analyzed for 451 early-stage PD patients and 172 healthy
controls from the PPMI cohort. PD patients had a baseline
BAG of 1.1 years, with fast-progressing patients exhibiting
a BAG of 3.0 years, whereas slow-progressing patients
resembled the BAG of healthy controls. Higher BAG was
associated with more severe baseline symptoms, faster
cognitive decline in several domains, increased hazard of
developing mild cognitive impairment, and faster progression
of dopaminergic neuron loss in longitudinal DaTSCANs.
BAG-based patient stratification could reduce sample sizes
of randomized clinical trials by $23-58\%.$ These findings
suggest BAG as a prognostic biomarker of disease
progression, which may accelerate the development of
disease-modifying treatments.},
cin = {AG Falkenburger},
ddc = {610},
cid = {I:(DE-2719)1710012},
pnm = {353 - Clinical and Health Care Research (POF4-353)},
pid = {G:(DE-HGF)POF4-353},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:41361244},
pmc = {pmc:PMC12689644},
doi = {10.1038/s41531-025-01232-4},
url = {https://pub.dzne.de/record/282968},
}