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Updated: May 29, 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
Neurobiology of vascular dementia
Ana-Maria Enciu1, Stefan N Constantinescu, Laurenţiu M Popescu
1Department of Cellular and Molecular Medicine, School of Medicine, "Carol Davila" University of Medicine and Pharmacy, 8 Eroilor Sanitari, Sector 5, 050474 Bucharest, Romania.
Insights
Vascular dementia involves brain changes common in aging and other neurodegenerative diseases. New molecular insights suggest rethinking its definition for better diagnosis and treatment.
Area of Science:
- Neuroscience
- Neurology
- Molecular Biology
Background:
- Vascular dementia is a distinct dementia type with specific features.
- Its pathology often overlaps with general aging and other neurodegenerative processes.
- Cellular signaling defects and molecular imbalances precede neuronal death in dementia.
Purpose of the Study:
- To explore molecular mechanisms of brain malfunction in vascular dementia.
- To investigate the role of cerebrovascular disease and risk factors.
- To propose a revised conceptualization of vascular dementia.
Main Methods:
- Review of molecular mechanisms underlying brain malfunction.
- Analysis of cell signaling defects and molecular dyshomeostasis.
- Exploration of cerebrovascular disease and risk factors' impact.
Main Results:
- Common molecular events in aging brains contribute to vascular dementia.
- Cellular dyshomeostasis can cause neuronal malfunction before cell death.
- Existing understanding of vascular dementia may be insufficient.
Conclusions:
- Vascular dementia shares molecular pathways with other neurodegenerative conditions.
- A new approach to vascular dementia is needed, considering molecular and genetic factors.
- Rethinking the concept of vascular dementia is crucial for advancing diagnosis and treatment.
Abstract:
Vascular dementia is, in its current conceptual form, a distinct type of dementia with a spectrum of specific clinical and pathophysiological features. However, in a very large majority of cases, these alterations occur in an already aged brain, characterized by a milieu of cellular and molecular events common for different neurodegenerative diseases. The cell signaling defects and molecular dyshomeostasis might lead to neuronal malfunction prior to the death of neurons and the alteration of neuronal networks. In the present paper, we explore some of the molecular mechanisms underlying brain malfunction triggered by cerebrovascular disease and risk factors. We suggest that, in the age of genetic investigation and molecular diagnosis, the concept of vascular dementia needs a new approach.
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