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image of Resveratrol Supplementation Modulates Endothelial Dysfunction in Alzheimer’s Disease (AD): In Vitro Effects on Human Aortic Endothelial Cells Exposed to AD Plasma

Abstract

Introduction

Increasing evidence indicates a connection between Alzheimer’s disease (AD) and endothelial dysfunction. Given the lack of a definitive cure for AD, the purpose of this research was to explore the impact of a short incubation with plasma samples obtained from 30 patients with sporadic AD and 21 age- and sex-matched control subjects on cultured human aortic endothelial cells (HAECs), as well as to assess the effects of resveratrol (RSV) supplementation to the plasma.

Methods

Specifically, the study analyzed: the production of nitric oxide (NO) and peroxynitrite; the activities of superoxide dismutase (SOD) and Na+/K+-ATPase; membrane fluidity; and levels of thiobarbituric acid-reactive substances (TBARS).

Results

When incubated with AD plasma, cells showed a decrease in NO levels, enzymatic activities, and membrane fluidity, as well as an increase in peroxynitrite and TBARS production, compared to those exposed to plasma from healthy controls. In contrast, supplementation with RSV-enriched plasma, reduced reactive oxygen species (ROS) levels, and enhanced SOD activity. RSV also improved endothelial function, by increasing membrane fluidity, Na+/K+-ATPase activity, and enhancing NO production and bioavailability, potentially benefiting cerebral perfusion.

Discussion

Though preliminary, our findings highlight the critical role played by vascular health in Alzheimer’s disease, and the potential impact of resveratrol in maintaining the endothelial integrity, thus mitigating the progression of AD .

Conclusion

In conclusion, our study supports the use of dietary natural compounds to reduce oxidative stress and prevent or reverse vascular endothelial dysfunction associated with AD.

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2025-10-06
2025-12-15

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/content/journals/cn/10.2174/011570159X382096250914055513
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Resveratrol Supplementation Modulates Endothelial Dysfunction in Alzheimer’s Disease (AD): In Vitro Effects on Human Aortic Endothelial Cells Exposed to AD Plasma
Bentham Science Publishers ; https://doi.org/10.2174/011570159X382096250914055513
/content/journals/cn/10.2174/011570159X382096250914055513
/content/journals/cn/10.2174/011570159X382096250914055513
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  • Article Type:     Research Article
Keywords: membrane fluidity ; peroxynitrite ; Alzheimer’s disease ; Na+/K+-ATPase ; superoxide dismutase ; oxidative stress ; endothelial cells ; resveratrol ; nitric oxide

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