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000283053 1001_ $$0P:(DE-2719)9003115$$aBoscheck, Hanna$$b0$$eFirst author$$udzne
000283053 1112_ $$aAlzheimer’s Association International Conference$$cToronto$$d2025-07-27 - 2025-07-31$$gAAIC 25$$wCanada
000283053 245__ $$aAssociations of cognitive debt and cognitive reserve with mixed brain pathology and cognition
000283053 260__ $$c2025
000283053 3367_ $$0PUB:(DE-HGF)1$$2PUB:(DE-HGF)$$aAbstract$$babstract$$mabstract$$s1767014108_31203
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000283053 520__ $$aBehavioral risk or protective factors related to 'cognitive debt' and 'cognitive reserve' may influence brain pathology and cognition and thereby contribute to resilience in aging. This cross-sectional study examined direct and indirect associations of cognitive debt (risk factor) and cognitive reserve (protective factor) with mixed brain pathologies and cognition in older adults.A sample of N = 298 non-demented older adults (mean age=70 years, 56% male) from the DELCODE study (DRKS00007966) were analyzed using structural equation modeling (SEM) and an a-priori path model. We assessed the association between cognitive debt and cognitive reserve (modelled as latent constructs) and global cognition (Preclinical Alzheimer Cognitive Composite 5 [PACC5] modelled as latent construct) through pathological pathways involving beta-amyloid (Aß) burden, hippocampal neurodegeneration, and white matter hyperintensities (WMH) in the corpus callosum splenium (CCs), while adjusting for age. A goodness-of-fit analysis ensured adequate model fit.Brain pathology was associated with lower PACC5 performance via direct pathways (for WMH in the CCs and hippocampal neurodegeneration) and indirect pathways (for Aß deposition via hippocampal neurodegeneration) (all p < .05). Cognitive debt and cognitive reserve were not significantly associated with brain pathology (all p > .05). Cognitive reserve, but not cognitive debt, was independently associated with better PACC5 performance (p = .005). Cognitive debt and cognitive reserve were associated at trend level (p = .068). Results are displayed in Figure 1.Brain pathologies were linked to lower cognitive performance. Cognitive reserve, but not cognitive debt, was independently associated with better cognitive performance (1). There were no significant associations of cognitive debt and cognitive reserve with brain pathologies. The findings suggest that cognitive reserve may influence resilience through mechanisms independent of brain pathology (2). Future longitudinal studies are needed to investigate these pathways and clarify causal relationships. References 1. Vemuri P, Weigand SD, Przybelski SA, Knopman DS, Smith GE, Trojanowski JQ, et al. Cognitive reserve and Alzheimer's disease biomarkers are independent determinants of cognition. Brain. 2011;134(Pt 5):1479-92. 2. Vemuri P, Lesnick TG, Przybelski SA, Knopman DS, Roberts RO, Lowe VJ, et al. Effect of lifestyle activities on Alzheimer disease biomarkers and cognition. Ann Neurol. 2012;72(5):730-8.
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000283053 650_7 $$2NLM Chemicals$$aBiomarkers
000283053 650_7 $$2NLM Chemicals$$aAmyloid beta-Peptides
000283053 650_2 $$2MeSH$$aHumans
000283053 650_2 $$2MeSH$$aMale
000283053 650_2 $$2MeSH$$aAged
000283053 650_2 $$2MeSH$$aFemale
000283053 650_2 $$2MeSH$$aCross-Sectional Studies
000283053 650_2 $$2MeSH$$aBiomarkers
000283053 650_2 $$2MeSH$$aCognitive Reserve: physiology
000283053 650_2 $$2MeSH$$aBrain: pathology
000283053 650_2 $$2MeSH$$aAmyloid beta-Peptides: metabolism
000283053 650_2 $$2MeSH$$aNeuropsychological Tests
000283053 650_2 $$2MeSH$$aMagnetic Resonance Imaging
000283053 650_2 $$2MeSH$$aAlzheimer Disease
000283053 650_2 $$2MeSH$$aWhite Matter: pathology
000283053 650_2 $$2MeSH$$aHippocampus: pathology
000283053 650_2 $$2MeSH$$aAged, 80 and over
000283053 693__ $$0EXP:(DE-2719)DELCODE-20140101$$5EXP:(DE-2719)DELCODE-20140101$$eLongitudinal Cognitive Impairment and Dementia Study$$x0
000283053 7001_ $$0P:(DE-2719)9001827$$aLiebscher, Maxie$$b1$$udzne
000283053 7001_ $$0P:(DE-2719)9001844$$aDelia, Ylenia$$b2$$udzne
000283053 7001_ $$aMauer, René$$b3
000283053 7001_ $$0P:(DE-2719)2811024$$aPeters, Oliver$$b4$$udzne
000283053 7001_ $$0P:(DE-2719)2811122$$aPriller, Josef$$b5$$udzne
000283053 7001_ $$0P:(DE-2719)2812035$$aSchneider, Anja$$b6$$udzne
000283053 7001_ $$0P:(DE-2719)2811317$$aWiltfang, Jens$$b7$$udzne
000283053 7001_ $$0P:(DE-2719)2811351$$aBuerger, Katharina$$b8$$udzne
000283053 7001_ $$0P:(DE-2719)2812234$$aPerneczky, Robert$$b9$$udzne
000283053 7001_ $$0P:(DE-2719)2000026$$aTeipel, Stefan$$b10$$udzne
000283053 7001_ $$0P:(DE-2719)2000055$$aLaske, Christoph$$b11$$udzne
000283053 7001_ $$0P:(DE-2719)2811324$$aSpottke, Annika$$b12$$udzne
000283053 7001_ $$0P:(DE-2719)2810593$$aBrosseron, Frederic$$b13$$udzne
000283053 7001_ $$0P:(DE-2719)2812398$$aYakupov, Renat$$b14$$udzne
000283053 7001_ $$0P:(DE-2719)2814076$$aZiegler, Gabriel$$b15$$udzne
000283053 7001_ $$0P:(DE-2719)2812139$$aKleineidam, Luca$$b16$$udzne
000283053 7001_ $$0P:(DE-2719)2000032$$aJessen, Frank$$b17$$udzne
000283053 7001_ $$0P:(DE-2719)2000005$$aDüzel, Emrah$$b18$$udzne
000283053 7001_ $$0P:(DE-2719)2000057$$aWagner, Michael$$b19$$udzne
000283053 7001_ $$0P:(DE-2719)2810395$$aRoeske, Sandra$$b20$$udzne
000283053 7001_ $$aMarchant, Natalie L$$b21
000283053 7001_ $$aGloeckner, Franka$$b22
000283053 7001_ $$0P:(DE-2719)9002456$$aKlimecki-Lenz, Olga Maria$$b23$$udzne
000283053 7001_ $$0P:(DE-2719)2814122$$aWirth, Miranka$$b24$$eLast author$$udzne
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000283053 773__ $$0PERI:(DE-600)2201940-6$$a10.1002/alz70856_102595$$gVol. 21 Suppl 2, no. Suppl 2, p. e102595$$nSuppl 2$$pe102595$$tAlzheimer's and dementia$$v21$$x1552-5260$$y2025
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