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Related Experiment Videos

L-ascorbic acid, L-ascorbate 2-sulfate, and atherogenesis

F J Finamore, R P Feldman, G E Cosgrove

    International Journal for Vitamin and Nutrition Research. Internationale Zeitschrift Fur Vitamin- Und Ernahrungsforschung. Journal International De Vitaminologie Et De Nutrition
    |January 1, 1976
    PubMed
    Summary
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    This study found that while ascorbic acid (Vitamin C) and its sulfate form did not prevent high cholesterol or triglycerides in rabbits, they significantly reduced the total mass and cholesterol within aortic plaques. Ascorbic acid was particularly effective in minimizing plaque deposition.

    Area of Science:

    • Biochemistry
    • Cardiovascular Research
    • Nutritional Science

    Background:

    • Hypercholesterolemia is a major risk factor for cardiovascular disease.
    • Ascorbic acid (Vitamin C) is an antioxidant with potential roles in lipid metabolism and vascular health.

    Purpose of the Study:

    • To investigate the effects of L-ascorbic acid and L-ascorbate 2-sulfate on hypercholesterolemia and aortic plaque characteristics in rabbits.

    Main Methods:

    • Rabbits on a high-cholesterol diet were treated with saline, L-ascorbic acid, or L-ascorbate 2-sulfate for 10 weeks.
    • Serum lipid profiles and tissue/plaque cholesterol content were measured.
    • Aortic plaque deposition was analyzed for mass and composition.

    Main Results:

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    • Neither L-ascorbic acid nor L-ascorbate 2-sulfate prevented hypercholesterolemia or elevated serum triglycerides.
    • Tissue cholesterol levels and lesion types were similar across groups.
    • However, plaque total mass and cholesterol content were significantly lower in ascorbic acid and ascorbate 2-sulfate treated groups compared to saline controls.

    Conclusions:

    • Ascorbic acid and ascorbate 2-sulfate do not resolve hypercholesterolemia but can significantly reduce the overall quantity and cholesterol burden of aortic plaques.
    • Ascorbic acid demonstrated a notable effect in minimizing the total mass of plaque deposition.