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Vascular cognitive impairment: pathophysiological mechanisms, insights into structural basis, and perspectives in
Vladimir A Parfenov1, Olga D Ostroumova2,3, Tatiana M Ostroumova1
1Department of Neurology, Federal State Autonomous Educational Institution of Higher Education, I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russian Federation.
Insights
Vascular cognitive impairment (VCI) involves complex factors like blood pressure variability and S100B protein. Novel treatments targeting these mechanisms, including a new drug for VCI, show promise for cognitive improvement.
Area of Science:
- Neurology
- Gerontology
- Cardiovascular Medicine
Background:
- Vascular cognitive impairment (VCI) and vascular dementia are leading causes of cognitive decline in older adults, linked to cerebrovascular disease.
- Pathophysiology involves blood-pressure variability, cardiac issues, renin-angiotensin-aldosterone system, endothelial dysfunction, and metabolic disorders.
- S100B protein plays a role in neuronal regulation, affecting cytokine expression, homeostasis, and nervous tissue processes.
Purpose of the Study:
- To review factors contributing to cerebrovascular disease and neurovascular unit alterations in VCI.
- To explore novel therapeutic approaches for cognitive improvement in VCI patients.
- To highlight the potential of a new complex drug for VCI treatment.
Main Methods:
- Literature review focusing on VCI pathophysiology and treatment strategies.
- Analysis of the role of S100B protein and endothelial NO synthase in VCI.
- Examination of a novel complex drug's prospective role in VCI therapy.
Main Results:
- Cerebrovascular disease involves multiple factors impacting the neurovascular unit.
- S100B protein is a key neuronal factor in VCI.
- A novel complex drug targeting S100 and endothelial NO synthase shows therapeutic potential.
Conclusions:
- VCI has a complex and diverse pathological basis requiring multifaceted treatment approaches.
- Targeting specific molecular mechanisms, like S100B and endothelial NO synthase, is crucial for VCI management.
- The novel complex drug presents a promising avenue for future VCI treatment strategies.
Abstract:
Vascular cognitive impairment (VCI) and vascular dementia are the most common forms of cognitive disorder associated with cerebrovascular disease and related to increased morbidity and mortality among the older population. Growing evidence suggests the contribution of blood-pressure variability, cardiac arrhythmia, hyperactivation of the renin-angiotensin-aldosterone system, endothelial dysfunction, vascular remodeling and stiffness, different angiopathies, neural tissue homeostasis, and systemic metabolic disorders to the pathophysiology of VCI. In this review, we focus on factors contributing to cerebrovascular disease, neurovascular unit alterations, and novel approaches to cognitive improvement in patients with cognitive decline. One of the important factors associated with the neuronal causes of VCI is the S100B protein, which can affect the expression of cytokines in the brain, support homeostasis, and regulate processes of differentiation, repair, and apoptosis of the nervous tissue. Since the pathological basis of VCI is complex and diverse, treatment affecting the mechanisms of cognitive disorders should be developed. The prospective role of a novel complex drug consisting of released-active antibodies to S100 and to endothelial NO synthase in VCI treatment is highlighted.
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