Association of Aortic Stiffness and Pressure Pulsatility With Global Amyloid-β and Regional Tau Burden Among Framingham Heart Study Participants Without Dementia.

Autor:	Cooper LL; Biology Department, Vassar College, Poughkeepsie, New York., O'Donnell A; Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts.; Boston University and the National Heart, Lung, and Blood Institute (NHLBI) Framingham Heart Study, Framingham, Massachusetts., Beiser AS; Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts.; Boston University and the National Heart, Lung, and Blood Institute (NHLBI) Framingham Heart Study, Framingham, Massachusetts.; Department of Neurology, Boston University School of Medicine, Boston, Massachusetts., Thibault EG; Gordon Center for Medical Imaging, Massachusetts General Hospital and Harvard Medical School, Boston., Sanchez JS; Gordon Center for Medical Imaging, Massachusetts General Hospital and Harvard Medical School, Boston., Benjamin EJ; Boston University and the National Heart, Lung, and Blood Institute (NHLBI) Framingham Heart Study, Framingham, Massachusetts.; Cardiology and Preventive Medicine Sections, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts.; Evans Department of Medicine, Boston Medical Center, Boston, Massachusetts.; Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, Massachusetts.; Department of Epidemiology, Boston University School of Public Health, Boston, Massachusetts., Hamburg NM; Evans Department of Medicine, Boston Medical Center, Boston, Massachusetts.; Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, Massachusetts., Vasan RS; Boston University and the National Heart, Lung, and Blood Institute (NHLBI) Framingham Heart Study, Framingham, Massachusetts.; Cardiology and Preventive Medicine Sections, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts.; Evans Department of Medicine, Boston Medical Center, Boston, Massachusetts.; Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, Massachusetts.; Department of Epidemiology, Boston University School of Public Health, Boston, Massachusetts., Larson MG; Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts.; Boston University and the National Heart, Lung, and Blood Institute (NHLBI) Framingham Heart Study, Framingham, Massachusetts., Johnson KA; Gordon Center for Medical Imaging, Massachusetts General Hospital and Harvard Medical School, Boston.; Departments of Radiology and Neurology, Harvard Medical School, Boston, Massachusetts., Mitchell GF; Cardiovascular Engineering, Inc, Norwood, Massachusetts., Seshadri S; Boston University and the National Heart, Lung, and Blood Institute (NHLBI) Framingham Heart Study, Framingham, Massachusetts.; Glenn Biggs Institute for Alzheimer's and Neurodegenerative Diseases, San Antonio, Texas.
Jazyk:	angličtina
Zdroj:	JAMA neurology [JAMA Neurol] 2022 Jul 01; Vol. 79 (7), pp. 710-719.
DOI:	10.1001/jamaneurol.2022.1261
Abstrakt:	Importance: Aortic stiffness is associated with clinical hallmarks of Alzheimer disease and related dementias and could be a modifiable target for disease prevention. Objective: To assess associations of aortic stiffness and pressure pulsatility with global amyloid-β plaques and regional tau burden in the brain of middle-aged and older adults without dementia. Design, Setting, and Participants: The sample for this cross-sectional study was drawn from the Framingham Heart Study Third Generation Cohort at examination 3 (N = 3171; 2016-2019), of whom 3092 successfully underwent comprehensive hemodynamic evaluations. In a supplemental visit (2015-2021), a subset of 270 participants without dementia who represented the spectrum of vascular risk also underwent positron emission tomography. Thirteen participants were excluded for missing covariate data. The final sample size was 257 participants. Exposures: Three measures of aortic stiffness and pressure pulsatility (carotid-femoral pulse wave velocity, central pulse pressure [CPP], and forward wave amplitude [FWA]) were evaluated using arterial tonometry. Main Outcomes and Measures: Global amyloid-β plaques and regional tau were assessed using 11C-Pittsburgh compound B and 18F-flortaucipir positron emission tomography tracers, respectively. Results: The mean (SD) age of the 257 participants was 54 (8) years, and 126 were women (49%). All participants were White Western European race. In multivariable models, higher CPP (β per SD = 0.17; 95% CI, 0.00-0.35; P = .045) and FWA (β per SD = 0.16; 95% CI, 0.00-0.31; P = .04) were associated with greater entorhinal tau burden. In similar models, higher CPP (β per SD = 0.19; 95% CI, 0.02-0.36; P = .03) and FWA (β per SD = 0.17; 95% CI, 0.01-0.32; P = .03) were associated with greater rhinal tau burden. Aortic stiffness and pressure pulsatility measures were not associated with amygdala, inferior temporal, precuneus tau burden, or global amyloid-β plaques. Associations for entorhinal and rhinal tau outcomes were more prominent in older participants (≥60 years). For example, higher levels of all aortic stiffness and pressure pulsatility measures (β per SD = 0.40-0.92; P = .001-.02) were associated with higher entorhinal tau burden among older but not younger participants in stratified analyses. Conclusions and Relevance: In this cross-sectional study, abnormal central vascular hemodynamics were associated with higher tau burden in specific brain regions. Findings suggest that aortic stiffness, which is potentially modifiable, may be a probable independent target for prevention of tau-related pathologies.
Databáze:	MEDLINE
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