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KMID : 0882420060710020158
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Korean Journal of Medicine
2006 Volume.71 No. 2 p.158 ~ p.165
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The change of serum level of total antioxidant status and cytokine, and in-stent restenosis after supplementation of antioxidant
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Yoon Hyung-Geun
Park Seung-Hoon
Bang Duk-Won
Suh Jon
Yoon Yeo-Joon
Ahn Ji-Hoon
Hyon Min-Su
Kim Sung-Koo
Kwon Young-Joo
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Abstract
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Background: Oxidative stress might be a role in atherosclerosis and increased intake of antioxidant appear to be protective and modify neointimal formation. An antioxidant and probucol prevents endothelial dysfunction and low density lipoprotein oxidation and also inhibits the secretion of cytokine by macrophages. We aimed 1) to study the effects of antioxidant (Vitamin C, E and probucol) supplementation on serum level of antioxidant status (TAS), P-selectin, MCP-1, IL-6 and IL-10 and 2) to investigate the effects of antioxidant intake on in-stent restenosis.
Methods: Total 90 patients were assigned to control or antioxidant group (probucol; 500 mg, vitamin C; 1,000 mg, vitamin E; 400 mg). We performed follow up coronary angiography in 35 patients of antioxidant group and 36 patients of control group after 6 months of coronary bare metal stent implantation. We counted the stenotic lesions more than 50% of implanted stent lumen as a restenosis by quantitative coronary angiography. The serum levels of total antioxidant status, P-selectin, MCP-1, IL-6 and IL-10 were measured.
Results: The serum levels of total antioxidant status was not elevated in antioxidant group. Antioxidant supplementation did not change the serum levels of P-selectin, MCP-1, IL-6 and IL-10. The 6-month angiographic in-stent restenosis rate was 27% versus 30% (p=NS) with an associated late loss of 0.76+/-1.01 mm versus 0.91+/-1.00 mm (p=NS) for antioxidant group and control group. The serum levels of total antioxidant status did not correlate with the restenosis or late loss after stent implantation.
Conclusion: Vitamin C, E and probucol did not elevate the serum level of antioxidant status and could not prevent in-stent restenosis after bare metal stent implantation.
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KEYWORD
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Antiocidants, Cytokines, Coronary restenosis
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