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Updated: Aug 30, 2026

A Mouse Model for Vascular Cognitive Impairment and Dementia Based on Needle-guided Asymmetric Bilateral Common Carotid Artery Stenosis
Published on: November 22, 2024
Prospects for prevention and treatment of vascular cognitive impairment
Silvia Di Legge1, Vladimir Hachinski
1Department of Clinical Neurological Sciences, London Health Sciences Centre, University of Western Ontario, 339 Windermere Road, N6A 5A5 London, Ontario, Canada. sdilegge@uwo.ca
Insights
Vascular cognitive impairment (VCI) affects many due to aging and vascular disease. Early detection and intervention, aided by neuroimaging, are key to preventing dementia progression.
Area of Science:
- Neurology
- Vascular Medicine
- Gerontology
Background:
- The aging population and increasing vascular disease rates elevate the risk of cognitive impairment.
- Vascular cognitive impairment (VCI) is a significant consequence of vascular disease, impacting cognition.
- Current dementia therapeutics show limited success, highlighting the need for preventative strategies.
Purpose of the Study:
- To explore the role of vascular disease in cognitive impairment.
- To identify imaging biomarkers for early VCI detection and intervention.
- To emphasize the importance of early intervention and preventative therapeutics for VCI.
Main Methods:
- Review of risk factors for stroke and their correlation with cognitive decline and Alzheimer's disease pathology.
- Non-invasive magnetic resonance imaging (MRI) techniques to detect brain changes like infarcts, white matter lesions, and atrophy.
- Integration of neuropsychological, neuroimaging, genetic, and pathological data to understand VCI pathophysiology.
Main Results:
- Vascular risk factors are linked to brain changes, cognitive loss, and Alzheimer's pathology.
- Imaging techniques can identify surrogate markers for dementia processes and intervention targets.
- Early identification of at-risk patients via MRI can guide preventative strategies.
Conclusions:
- VCI is a growing concern linked to vascular disease and aging.
- Non-invasive imaging and risk factor control are crucial for preventing cognitive decline.
- Understanding VCI pathophysiology may lead to early diagnostic criteria and novel treatments.
Abstract:
With the aging population and rising prevalence of vascular disease in developed and developing countries, increasing numbers of individuals are at risk of cognitive impairment. Despite the potential of the therapeutics that are currently under investigation, none have yet fulfilled their promise for the prevention and treatment of dementia. The term vascular cognitive impairment (VCI) describes individuals with significant cognitive impairment arising from vascular disease. Risk factors predisposing to stroke correlate with brain changes, cognitive loss and Alzheimer's disease pathology. The volume of the infarcts and white matter changes, silent lacunar infarcts, and global and regional brain atrophy may be imaged non-invasively, targeted as surrogates of the dementia processes and considered parameters to be targeted for interventional strategies. As the greatest chance to prevent cognitive impairment and its progression is by intervening in the early stages or prior to any change, the development of preventative therapeutics is an important strategy. Non-invasive magnetic resonance imaging techniques may help to identify a subgroup of patients in whom infarct prevention, via risk factor control, may be of paramount importance. As the pathophysiology of dementia becomes more fully understood by coupling neuropsychological with neuroimaging, genetic and pathological features, there is the potential for the establishment of diagnostic criteria of the early phase of VCI and the testing of novel interventional strategies.
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