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  • Title: Effect of 6 month supplementation with different combinations of an association of antioxidant nutrients on biochemical parameters and markers of the antioxidant defence system in the elderly. The Geriatrie/Min.Vit.Aox Network.
    Author: Monget AL, Richard MJ, Cournot MP, Arnaud J, Galan P, Preziosi P, Herbeth B, Favier A, Hercberg S.
    Journal: Eur J Clin Nutr; 1996 Jul; 50(7):443-9. PubMed ID: 8862480.
    Abstract:
    OBJECTIVES: To study the effect of supplementation with an association of small physiological amounts of antioxidant nutrients upon biochemical parameters and indicators of oxidative stress and antioxidant enzymes. DESIGN: The study included a double-blind placebo-controlled design. SETTING: Nursing homes in different areas in France. SUBJECTS: 575 elderly long term hospitalized subjects aged 65-103 years. INTERVENTION: Four groups were compared. They received daily: (V) vitamins (vitamin E, 15 mg and vitamin C, 120 mg) and beta-carotene, 6 mg; (T) trace elements (zinc, 20 mg, selenium, 100 micrograms); (VT) vitamins associated with trace elements; or (P) a placebo. Biological markers of vitamin and trace element status, and free radical parameters were measured initially and after 6 months of supplementation. RESULTS: An analysis of variance indicated a significant effect of vitamin supplementation on serum alpha-tocopherol, beta-carotene and vitamin C, a significant effect of trace element supplementation on serum zinc and both a significant trace element and a vitamin-trace element interaction on serum selenium. We observed significant effects of both trace element and vitamin supplementation on GPx activity (P < 0.01), an effect of vitamin supplementation on SOD activity (P < 0.05). CONCLUSION: Our results indicate that short-term supplementation with moderate doses of antioxidant vitamins and trace elements in elderly subjects clearly improves both non-enzymatic (alpha-tocopherol, beta-carotene, vitamin C) levels and enzymatic antioxidant (GPx and SOD) activity.
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