Resveratrol preserves cerebrovascular density and cognitive function in aging mice

Area of Science:

• Neuroscience
• Gerontology
• Cardiovascular Research

Background:

• Resveratrol, a natural polyphenol found in grapes and red wine, is known for its potential health benefits.
• Previous studies suggest acute neuroprotective effects of resveratrol in various neurodegeneration models.
• The impact of long-term resveratrol supplementation on brain health, particularly cerebrovascular function and cognition in aging, requires further investigation.

Purpose of the Study:

• To investigate the long-term effects of dietary resveratrol supplementation on cognitive function, neurochemistry, and cerebrovascular health in aging mice.
• To determine if resveratrol can mitigate age-related cognitive decline and preserve brain health.

Main Methods:

• Aging mice were administered resveratrol in their diet over an extended period.
• Cognitive function was assessed using a spatial Y-maze task.
• Neurochemical analyses and cerebrovascular assessments, including microvascular density and abnormalities, were performed.
• Cholinergic cell number and fiber density were also evaluated.

Main Results:

• Resveratrol-treated aging mice demonstrated preserved cognitive function, evidenced by enhanced spatial Y-maze task acquisition.
• A significant increase in microvascular density and a reduction in microvascular abnormalities were observed in the resveratrol group compared to controls.
• No significant effects of resveratrol were found on cholinergic cell number or fiber density.

Conclusions:

• Long-term resveratrol supplementation beneficially impacts the aging brain, primarily by maintaining cerebrovascular health.
• The preservation of cognitive function in aging mice treated with resveratrol is likely mediated through improved cerebrovascular integrity.
• Resveratrol shows promise as a dietary intervention to support cognitive health during the aging process.