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Updated: Jul 20, 2025

A Mouse Model for Vascular Cognitive Impairment and Dementia Based on Needle-guided Asymmetric Bilateral Common Carotid Artery Stenosis
Published on: November 22, 2024
Mouse models of cerebral injury and cognitive impairment in hypertension
Marialuisa Perrotta1,2, Daniela Carnevale1,2, Lorenzo Carnevale2
1Department of Molecular Medicine, "Sapienza" University of Rome, Rome, Italy.
Insights
Hypertension significantly increases dementia risk. This review details genetic, pharmacological, and surgical models used to study how high blood pressure causes brain injury and cognitive impairment.
Area of Science:
- Neuroscience
- Cardiovascular Research
- Gerontology
Background:
- Hypertension is a primary risk factor for dementia, affecting both vascular and neurodegenerative pathways.
- Experimental models initially focused on systemic hypertension's effects on organs like the heart and kidneys.
- Recent research highlights the need to understand hypertension's impact on the brain and cognitive function.
Purpose of the Study:
- To review and categorize the main experimental models of hypertension-induced cognitive impairment.
- To analyze how different models elucidate hypertension's effects on cerebral injury and cognitive decline.
- To summarize the utility of genetic, pharmacological, and surgical models in studying vascular dementia.
Main Methods:
- Systematic review of literature on hypertension and cognitive impairment models.
- Categorization of models into genetic, pharmacological, and surgical approaches.
- Analysis of how each model contributes to understanding hypertension-related brain injury.
Main Results:
- Identified and classified various experimental models for inducing hypertension and studying its cognitive effects.
- Highlighted the strengths of each model category in simulating different aspects of hypertension-induced brain damage.
- Provided a summary of how these models advance the study of vascular cognitive impairment.
Conclusions:
- Experimental models are crucial for dissecting the mechanisms of hypertension-induced cognitive impairment.
- Genetic, pharmacological, and surgical models offer distinct insights into vascular dementia.
- Further research using these models can improve understanding and treatment strategies for hypertension-related cognitive decline.
Abstract:
Hypertension is a major risk factor for dementia, including both vascular and neurodegenerative etiologies. With the original aim of studying the effect of blood pressure elevation on canonical target organs of hypertension as the heart, the vasculature or the kidneys, several experimental models of hypertension have sprouted during the years. With the more recent interest of understanding the cerebral injury burden caused by hypertension, it is worth understanding how the main models of hypertension or localized cerebral hypertension stand in the field of hypertension-induced cerebral injury and cognitive impairment. With this review we will report main genetic, pharmacological and surgical models of cognitive impairment induced by hypertension, summarizing how each specific category and model can improve our understanding of the complex phenomenon of cognitive loss of vascular etiology.

