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anti-oxidanten verbeteren de elasticiteit van bloedvaten

Bij mensen met meerdere risicofactoren voor hart- en vaatziekten die behandeld werden met anti-oxidanten (supplementen) verbeterde de elasticiteit van de grote en kleine bloedvaten significant. Dat gunstige effect van anti-oxidanten ging gepaard met ook een verbetering van de glucose- en vetstofwisseling en een daling van de bloeddruk.
Gebruikte anti-oxidanten in deze studie waren vitamine E, vitamine C, Q10 en selenium.

http://www.ncbi.nlm.nih.gov/pubmed/20604917

Nutr Metab (Lond). 2010 Jul 6;7(1):55.

Effect of long-term treatment with antioxidants (vitamin C, vitamin E, coenzyme Q10 and selenium) on arterial compliance, humoral factors and inflammatory markers in patients with multiple cardiovascular risk factors.

Shargorodsky M, Debbi O, Matas Z, Zimlichman R.
Abstract

ABSTRACT:

BACKGROUND: Antioxidant supplementations have the potential to alleviate the atherosclerotic damage caused by excessive production of reactive oxygen species (ROS). The present study evaluated the effects of prolonged antioxidant treatment on arterial elasticity, inflammatory and metabolic measures in patients with multiple cardiovascular risk factors.

METHODS:
In randomized, placebo-controlled study, 70 patients were randomly assigned to receive daily oral supplementation with vitamin C (1000 mg/day), vitamin E (400 i.u/day), coenzyme Q10 (120 mg/day) and selenium (200 mcg/day) (Group 1) or placebo (Group 2) for six months.
Patients were evaluated for lipid profile, HbA1C, insulin, C-peptide, hs-CRP, endothelin, aldosterone, plasma renin activity and Homeostasis model assessment-insulin resistance (HOMA-IR). Arterial elasticity was evaluated using pulse wave contour analysis (HDI CR 2000, Eagan, Minnesota).

RESULTS:
Antioxidant-treated patients exhibited significant increases in large arterial elasticity index (LAEI) as well as small arterial elasticity index (SAEI). A significant decline HbA1C and a significant increase in HDL-cholesterol were also observed. In the placebo group, significant changes in LAEI, SAEI or metabolic measures were not observed.

CONCLUSIONS:
Antioxidant supplementation significantly increased large and small artery elasticity in patients with multiple cardiovascular risk factors. This beneficial vascular effect was associated with an improvement in glucose and lipid metabolism as well as decrease in blood pressure.

PMID: 20604917 [PubMed - as supplied by publisher]Free Article