Citations 2
Longitudinal associations between exercise and biomarkers in autosomal dominant Alzheimer's disease
Sewell, Kelsey R. , Xiong, Chengjie , Masters, Colin L. , Laske, Christoph , Huey, Edward D. , Hassenstab, Jason , Day, Gregory S. , Fox, Nick C. , Chhatwal, Jasmeer P. , Roh, Jee Hoon , Perrin, Richard J. , Supnet, Charlene , Berman, Sarah , Daniels, Alisha , Noble, James M. , Martins, Ralph N. , Gardener, Samantha L. , Morris, John C. , Erickson, Kirk I. , Sohrabi, Hamid R. , Brown, Belinda M. , Network, The Dominantly Inherited Alzheimer's, Day, Gregory S , Masters, Colin L , Xiong, Chengjie , Fox, Nick C , Hassenstab, Jason , Morris, John C , Roh, Jee Hoon , Supnet-Bell, Charlene , Berman, Sarah , Noble, James M , Doecke, James D. , Xiong, Chengjie , Benzinger, Tammie L.S. , Jucker, Mathias , Lopera, Francisco Javier , Gordon, Brian A. , Llibre‐Guerra, Jorge J. , Schofield, Peter R. , Ibanez, Laura , Lee, Jae‐Hong , Allegri, Ricardo , Rainey‐Smith, Stephanie R. , Peiffer, Jeremiah J. , Bateman, Randall J. , McDade, Eric , Network, The Dominantly Inherited Alzheimer's
Alzheimer's & Dementia | September 26, 2024 | Volume: 20 | Issue: 11 | Pages: 7923-7939
AbstractINTRODUCTIONWe investigated longitudinal associations between self‐reported exercise and Alzheimer's disease (AD)‐related biomarkers in individuals with autosomal dominant AD (ADAD) mutations.METHODSParticipants were 308 ADAD mutation carriers aged 39.7 ± 10.8 years from the Dominantly Inherited Alzheimer's Network. Weekly exercise volume was measured via questionnaire and associations with brain volume (magnetic resonance imaging), cerebrospinal fluid biomarkers, and brain amyloid beta (Aβ) measured by positron emission tomography were investigated.RESULTSGreater volume of weekly exercise at baseline was associated with slower accumulation of brain Aβ at preclinical disease stages β = –0.16 [–0.23 to –0.08], and a slower decline in multiple brain regions including hippocampal volume β = 0.06 [0.03 to 0.08].DISCUSSIONExercise is associated with more favorable profiles of AD‐related biomarkers in individuals with ADAD mutations. Exercise may have therapeutic potential for delaying the onset of AD; however, randomized controlled trials are vital to determine a causal relationship before a clinical recommendation of exercise is implemented.Highlights Greater self‐reported weekly exercise predicts slower declines in brain volume in autosomal dominant Alzheimer's disease (ADAD). Greater self‐reported weekly exercise predicts slower accumulation of brain amyloid beta in ADAD. Associations varied depending on closeness to estimated symptom onset.
Habitual exercise levels are associated with cerebral amyloid load in presymptomatic autosomal dominant Alzheimer's disease
Brown, Belinda M. , Sohrabi, Hamid R. , Taddei, Kevin , Gardener, Samantha L. , Rainey‐Smith, Stephanie R. , Peiffer, Jeremiah J. , Xiong, Chengjie , Fagan, Anne M. , Benzinger, Tammie L.S. , Buckles, Virginia, Erickson, Kirk I. , Clarnette, Roger, Shah, Tejal , Masters, Colin L. , Weiner, Michael W. , Cairns, Nigel J., Rossor, Martin N. , Graff‐Radford, Neill R. , Salloway, Stephen , Vöglein, Jonathan , Laske, Christoph , Noble, James M. , Schofield, Peter R. , Bateman, Randall J. , Morris, John C. , Martins, Ralph N. , Schofield, Peter R , Bateman, Randall J , Masters, Colin L , Vöglein, Jonathan , Benzinger, Tammie L S , Morris, John C , Noble, James M
Alzheimer's & Dementia | May 11, 2017 | Volume: 13 | Issue: 11 | Pages: 1197-1206
AbstractIntroductionThe objective of this study was to evaluate the relationship between self‐reported exercise levels and Alzheimer's disease (AD) biomarkers, in a cohort of autosomal dominant AD mutation carriers.MethodsIn 139 presymptomatic mutation carriers from the Dominantly Inherited Alzheimer Network, the relationship between self‐reported exercise levels and brain amyloid load, cerebrospinal fluid (CSF) Aβ42, and CSF tau levels was evaluated using linear regression.ResultsNo differences in brain amyloid load, CSF Aβ42, or CSF tau were observed between low and high exercise groups. Nevertheless, when examining only those already accumulating AD pathology (i.e., amyloid positive), low exercisers had higher mean levels of brain amyloid than high exercisers. Furthermore, the interaction between exercise and estimated years from expected symptom onset was a significant predictor of brain amyloid levels.DiscussionOur findings indicate a relationship exists between self‐reported exercise levels and brain amyloid in autosomal dominant AD mutation carriers.