Cited by 557Neurological Disease Mechanisms and TreatmentsDementia and Cognitive Impairment ResearchBarrier Structure and Function Studies

The overlap between neurodegenerative and vascular factors in the pathogenesis of dementia

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Iadecola, Costantino·2010·Acta Neuropathologica

Abstract

There is increasing evidence that cerebrovascular dysfunction plays a role not only in vascular causes of cognitive impairment but also in Alzheimer's disease (AD). Vascular risk factors and AD impair the structure and function of cerebral blood vessels and associated cells (neurovascular unit), effects mediated by vascular oxidative stress and inflammation. Injury to the neurovascular unit alters cerebral blood flow regulation, depletes vascular reserves, disrupts the blood-brain barrier, and reduces the brain's repair potential, effects that amplify the brain dysfunction and damage exerted by incident ischemia and coexisting neurodegeneration. Clinical-pathological studies support the notion that vascular lesions aggravate the deleterious effects of AD pathology by reducing the threshold for cognitive impairment and accelerating the pace of the dementia. In the absence of mechanism-based approaches to counteract cognitive dysfunction, targeting vascular risk factors and improving cerebrovascular health offers the opportunity to mitigate the impact of one of the most disabling human afflictions.

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Crossref · 10.1007/s00401-010-0718-6

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  • Co-occurrence of beta amyloid (Aβ) and white matter hyperintensities (WMHs) increases the risk of dementia.

    “Co-occurrence of beta amyloid (Aβ) (a hallmark pathologic feature of AD) and white matter hyperintensities (WMHs) (reflecting CSVD burden) increase the risk of dementia [5].”

    From Amyloid-PET and White Matter Hyperintensities Have Independent Effects on Baseline Cognitive Function and Synergistic Effects on Longitudinal Executive Function (2023) · cites this paper as [5]

    In “Does the vascular pathology worsen the cognitive dysfunction in AD?” (page unavailable), the review says ischemic white matter lesions alongside AD pathology are associated with greater cognitive impact and more severe dementia. It does not specifically identify those lesions as MRI-defined WMHs or establish that co-occurring Aβ and WMHs increase the risk of developing dementia. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • Questionnaire data rely on the recall of subjects who may be cognitively impaired.

    “Questionnaire data rely on the recall of subjects who by definition of the research may be cognitively impaired.263”

    From Vascular Contributions to Cognitive Impairment and Dementia: A Statement for Healthcare Professionals From the American Heart Association/American Stroke Association (2011) · cites this paper as [263]

    The Introduction describes cognitive impairment in dementia, but does not discuss questionnaires or subjects’ ability to recall information. Searches for questionnaire recall and recall bias found no passage addressing that methodological concern; page numbers were not available in our copy. (LLM, conf=0.72)

    Experimental — accuracy not yet measured
  • The neurovascular unit clears unwanted products of brain activity and metabolism, such as beta-amyloid and tau, to prevent their accumulation in brain tissue.

    “Another important function of the NVU is to dispose of unwanted products of brain activity and metabolism, such as β-amyloid and tau to prevent their accumulation in the brain tissue.31”
  • Neurons, glia, and vascular cells exhibit a functional and pathogenic synergy.

    “new experimental findings have revealed a previously unrecognized functional and pathogenic synergy between neurons, glia and vascular cells (Iadecola, 2010; Quaegebeur et al., 2011; Zlokovic, 2011)”

    From The Pathobiology of Vascular Dementia (2013) · cites this paper as Iadecola, 2010

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Authors
Iadecola, C.
Affiliations
Cornell University (US)
Corresponding author
Iadecola, Costantino
Venue
Acta Neuropathologica
Published
2010-07-11
Volume
120
Issue
3
Pages
287-296
ISSN
  • 0001-6322 (ISSN-L)
  • 1432-0533
OpenAlex
W2084484659
Cited by
557
References
141
Citations by year
2026: 12 · 2025: 28 · 2024: 32 · 2023: 24 · 2022: 32 · 2021: 24 · 2020: 41 · 2019: 31 · 2018: 28 · 2017: 35 · 2016: 42 · 2015: 52 · 2014: 55 · 2013: 33 · 2012: 41
FWCI
3.26
Type
journal article
Language
en
Open access
Locations
  • Acta Neuropathologica (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Heart, Lung, and Blood Institute (HL-96571, P01HL096571)
  • National Institute of Neurological Disorders and Stroke (NS37806, R01NS037853)
Topics
  • Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
Keywords
dementia, Alzheimer's disease, cerebrovascular dysfunction, vascular risk factors, neurovascular unit, oxidative stress, neuroinflammation, cerebral autoregulation, vascular reserve, blood-brain barrier, ischemia, neurodegeneration, vascular lesions, cognitive impairment
MeSH terms
Alzheimer Disease, Animals, Brain, Cerebrovascular Circulation, Cerebrovascular Disorders, Dementia, Humans, Nerve Degeneration

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