Animal Models of Vascular Cognitive Impairment and Dementia (VCID)

Area of Science:

• Neuroscience
• Neurology
• Pathology

Background:

• Vascular cognitive impairment and dementia (VCID) is the leading cause of dementia in older adults.
• VCID arises from synergistic interactions between vascular and Alzheimer's disease pathologies, causing neurodegeneration and cognitive decline.
• Key VCID causes include microbleeds, cerebral small vessel disease, multi-infarct dementia, hypoperfusion, strategic infarcts, angiopathy, and hereditary vasculopathies.

Purpose of the Study:

• To review experimental animal models developed for studying VCID pathologies.
• To evaluate the strengths and limitations of these animal models.
• To highlight significant research findings derived from the use of these models.

Main Methods:

• Literature review of experimental animal models for VCID.
• Analysis of pathologies such as hemorrhage, cerebral small vessel disease, hypoperfusion, and angiopathy.
• Evaluation of models for hereditary vasculopathies like cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy.

Main Results:

• Various animal models exist to mimic different aspects of VCID.
• Each model presents unique strengths and limitations in recapitulating human VCID pathologies.
• These models have been instrumental in advancing our understanding of VCID mechanisms.

Conclusions:

• Experimental animal models are essential tools for investigating the complex mechanisms underlying VCID.
• Careful consideration of model strengths and limitations is crucial for accurate interpretation of research findings.
• Continued development and application of animal models will drive progress in combating VCID.