Therapeutic perspective on vascular cognitive impairment

Area of Science:

• Neuroscience
• Gerontology
• Vascular Biology

Background:

• Dementia is a major public health challenge for aging populations.
• Research has shifted from amyloid-β to vascular risk factors in dementia.
• Vascular cognitive impairment (VCI) is increasingly recognized as a significant component of dementia.

Purpose of the Study:

• To review the role of microRNAs in regulating blood-brain barrier (BBB) integrity.
• To explore the potential of microRNAs as biomarkers for BBB dysfunction in VCI.
• To envision future therapeutic strategies targeting microRNAs for dementia treatment.

Main Methods:

• Review of current scientific literature on microRNAs, VCI, and BBB.
• Analysis of imaging studies showing BBB disruptions in VCI patients.
• Examination of microRNA regulation of tight junctions in cerebral endothelial cells.

Main Results:

• Vascular risk factors are strongly associated with various forms of dementia.
• Blood-brain barrier disruptions are observed in the white matter of VCI patients.
• MicroRNAs play a crucial role in regulating the tight junctions essential for BBB function.

Conclusions:

• Targeting blood vessels and BBB integrity is a promising therapeutic avenue for dementia.
• MicroRNAs represent potential biomarkers for BBB dysfunction in VCI.
• Further research into microRNA mechanisms could lead to novel dementia treatments.