학술논문

Vascular dysfunction-The disregarded partner of Alzheimer's disease.
Document Type
article
Source
Alzheimer's & dementia : the journal of the Alzheimer's Association. 15(1)
Subject
Blood-Brain Barrier
Brain
Humans
Alzheimer Disease
Vascular Diseases
Cerebrovascular Circulation
United States
National Institute on Aging (U.S.)
Amyloid beta-Peptides
White Matter
Biomarkers
Alzheimer's disease
Blood-brain barrier
Cerebral blood flow
MRI
Vascular
National Institute on Aging
Neurosciences
Clinical Sciences
Geriatrics
Language
Abstract
Increasing evidence recognizes Alzheimer's disease (AD) as a multifactorial and heterogeneous disease with multiple contributors to its pathophysiology, including vascular dysfunction. The recently updated AD Research Framework put forth by the National Institute on Aging-Alzheimer's Association describes a biomarker-based pathologic definition of AD focused on amyloid, tau, and neuronal injury. In response to this article, here we first discussed evidence that vascular dysfunction is an important early event in AD pathophysiology. Next, we examined various imaging sequences that could be easily implemented to evaluate different types of vascular dysfunction associated with, and/or contributing to, AD pathophysiology, including changes in blood-brain barrier integrity and cerebral blood flow. Vascular imaging biomarkers of small vessel disease of the brain, which is responsible for >50% of dementia worldwide, including AD, are already established, well characterized, and easy to recognize. We suggest that these vascular biomarkers should be incorporated into the AD Research Framework to gain a better understanding of AD pathophysiology and aid in treatment efforts.