Levels of Serum Antioxidant Minerals and Enzyme Capacities of Korean Male Patients with Coronary Artery Disease

한국 남성 관상동맥질환자의 혈청 항산화 무기질 수준과 효소 활성

  • Shim, Eu-Gene (National Hypertension Center, Yonsei University Health System) ;
  • Kim, Soo-Yeon (Research Institute of Food & Nutritional Sciences, Yonsei University) ;
  • Chung, Eun-Jung (Department of General Education, Kangnam University) ;
  • Cho, Seung-Yun (Division of Cardiology, Yonsei Cardiovascular Center, Yonsei University Health System) ;
  • LeeKim, Yang-Cha (Research Institute of Food & Nutritional Sciences, Yonsei University)
  • 심유진 (연세대학교의료원 국민고혈압사업단) ;
  • 김수연 (연세대학교 식품영양과학연구소) ;
  • 정은정 (강남대학교 교양학부) ;
  • 조승연 (연세대학교 의과대학 심장내과학교실) ;
  • 이양자 (연세대학교 식품영양과학연구소)
  • Published : 2007.08.31

Abstract

Increased oxidative stress contributes to the progression of atherosclerosis. We measured serum antioxidant mineral concentrations, capacities of serum antioxidant enzymes and fasting lipid profile in 97 male patients with coronary artery disease (CAD) and 21 male controls. Nutrient intake was assessed by the semi-quantitative food frequency method. CAD patients were divided into single-vessel disease (SVD, n=66) and multi-vessel disease (MVD, n = 31) groups on the coronary angiography. The ratio of serum LDL- to HDL-cholesterol elevated with an increasing number of diseased vessels compared to the control (control < SVD < MVD, p < 0.05). Patients with SVD and MVD had higher levels of serum lipoprotein (a) than the control (p < 0.05). The mean intake of carbohydrate, protein and cholesterol was higher in MVD patients and the intakes of vitamins C and E were lower in MVD and SVD patients than in the control (p < 0.05). Serum copper (Cu) and zinc (Zn) levels were higher in MVD and SVD patients than in the control (Cu: control $75.8{\pm}5.07$, SVD $99.2{\pm}2.90$, MVD $100.1{\pm}2.32{\mu}g/dL$, p<0.01; Zn: $76.8{\pm}5.36$, $119.0{\pm}5.95$, $129.1{\pm}2.70{\mu}g/dL$, p < 0.01). And the ratio of Zn to Cu was higher in SVD and MVD patients than in the control (control $0.78{\pm}0.06$, SVD $0.88{\pm}0.05$, MVD $0.99{\pm}0.04$, P < 0.05). The activity of glutathione peroxidase (GSH-Px) was lower in MVD than in SVD and the control (control $35.13{\pm}1.34$, SVD $35.30{\pm}1.01$, MVD $31.00{\pm}1.04 U/mg$ protein, p < 0.05). The ratio of the activities of superoxide dismutase (SOD) to GSH-Px was higher in MVD than in control and SVD (p < 0.05). In groups with CAD, serum Cu and Zn concentrations and their ratio were changed compared to the control. GSH-Px activity was decreased and the ratio of SOD to GSH-Px was increased in the patients with MVD. The balances between the activities of SOD and GSH-Px should also be considered a risk factor in CAD patients.

Keywords

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