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Atherosclerosis from a viewpoint of arterial wall cell function: relation to vitamin E
N Morisaki1, K Yokote, Y Saito
1Second Department of Internal Medicine, School of Medicine, Chiba University, Japan.
Journal of Nutritional Science and Vitaminology
|January 1, 1992
Summary
Vitamin E impacts key stages of atheromatous lesion development, inhibiting endothelial cell injury and foam cell formation. Its effects on smooth muscle cell proliferation are complex and concentration-dependent in vivo.
Area of Science:
- Cardiovascular Science
- Nutritional Biochemistry
- Cell Biology
Background:
- Atheromatous lesions involve complex cellular and molecular events.
- Vitamin E is known to possess antioxidant and anti-inflammatory properties.
- Previous research suggests Vitamin E's role in inhibiting endothelial cell injury and platelet aggregation.
Purpose of the Study:
- To elucidate the multifaceted effects of Vitamin E on key events in atheromatous lesion progression.
- To investigate the impact of Vitamin E on foam cell formation and smooth muscle cell proliferation.
Main Methods:
- Review and synthesis of existing data on Vitamin E's effects in atherogenesis.
- Analysis of in vitro and in vivo studies concerning Vitamin E's cellular mechanisms.
Main Results:
- Vitamin E demonstrates inhibitory effects on endothelial cell injury and platelet aggregation.
- Data presented indicate a necessary inhibition of foam cell formation by Vitamin E.
- Paradoxical effects of Vitamin E on smooth muscle cell proliferation were observed.
Conclusions:
- Vitamin E plays a significant role in modulating atheromatous lesion development.
- The net in vivo effect of Vitamin E is contingent upon its effective concentration at lesion sites.
- Further research is warranted to fully understand the concentration-dependent effects on smooth muscle cells.