Functional brain architecture is associated with the rate of tau accumulation in Alzheimer’s disease

Male Aging Amyloid Science Biological Psychology 610 tau Proteins Neurodegenerative Alzheimer's Disease Article 03 medical and health sciences 0302 clinical medicine Clinical Research Alzheimer Disease Acquired Cognitive Impairment 80 and over Psychology 2.1 Biological and endogenous factors Humans Cognitive Dysfunction Aged Aged, 80 and over Q Neurosciences Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD) Brain Alzheimer’s Disease Neuroimaging Initiative Biological Sciences Magnetic Resonance Imaging Brain Disorders Cross-Sectional Studies Positron-Emission Tomography Neurological Biomedical Imaging Dementia Female Biochemistry and Cell Biology Biomarkers
DOI: 10.1038/s41467-019-14159-1 Publication Date: 2020-01-17T11:03:05Z
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ABSTRACT
Abstract In Alzheimer’s diseases (AD), tau pathology is strongly associated with cognitive decline. Preclinical evidence suggests that spreads across connected neurons in an activity-dependent manner. Supporting this, cross-sectional AD studies show deposition patterns resemble functional brain networks. However, whether higher connectivity rates of accumulation unclear. Here, we combine resting-state fMRI longitudinal tau-PET two independent samples including 53 (ADNI) and 41 (BioFINDER) amyloid-biomarker defined subjects 28 vs. 16 amyloid-negative healthy controls. both samples, faster than Second, AD, fMRI-assessed between 400 regions interest (ROIs) correlated corresponding ROIs. Third, a model baseline future accumulation. Together, spread supporting the view transneuronal propagation.
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