Critical evaluation of plasma and LDL oxidant-trapping potential in hemodialysis patients

被引:42
作者
Nguyen-Khoa, T
Massy, ZA
Witko-Sarsat, V
Thévenin, M
Touam, M
Lambrey, G
Lacour, B
Drüeke, TB
Descamps-Latscha, B
机构
[1] Hop Necker Enfants Malad, INSERM, U507, Div Nephrol, F-75743 Paris 15, France
[2] Hop Necker Enfants Malad, INSERM, U507, Div Biochem, F-75743 Paris, France
[3] Beauvais Hosp, Div Nephrol, Beauvais, France
关键词
total peroxyl radical-trapping antioxidant potential; antioxidant; low density lipoprotein; carbonyls; malondialdehyde;
D O I
10.1046/j.1523-1755.1999.00565.x
中图分类号
R5 [内科学]; R69 [泌尿科学(泌尿生殖系疾病)];
学科分类号
1002 ; 100201 ;
摘要
Background. We investigated whether the total peroxyl radical-trapping antioxidant potential (TRAP) assay, which has recently been proposed as a gauge of oxidative stress, could serve to evaluate plasma and low density lipoprotein (LDL) antioxidant state in hemodialysis (HD) patients. Methods. TRAP was determined by the lag time of the chemiluminescence reaction induced by azo-initiator-catalyzed linoleic acid peroxidation in the plasma and corresponding LDL preparations of 23 HD patients and 22 healthy subjects. Antioxidant systems, including glutathione peroxidase (GSH-Px), ascorbate, vitamin E, and uric acid, oxidative stress markers including malondialdehyde (MDA), carbonyls, and advanced oxidation protein products (AOPP), and lipids, including cholesterol and triglycerides, were also determined in the plasma. Results. Both plasma and LDL-TRAP were significantly increased in HD patients despite decreased GSH-Px and ascorbate and increased MDA, carbonyl, and AOPP plasma levels. Plasma TRAP values were closely related to both uric acid and AOPP levels, and LDL-TRAP values were related to triglycerides and AOPP levels. In vitro studies showed that: (a) plasma TRAP of control plasma increased regularly with supplementation of uric acid, although not reaching that of I-ID plasma with similar uric acid levels; (b) the addition of human serum albumin-AOPP also regularly increased control plasma TRAP, but was close to that of HD plasma with similar AOPP levels; and (c) LDL-TRAP was increased following LDL enrichment with triglycerides. Conclusion. Our study demonstrates that TRAP is not a relevant parameter for evaluating plasma or LDL antioxidant capacity in HD patients, due to the high plasma levels of uric acid, triglycerides and AOPP, which by themselves do not exert efficient antioxidant activity in vivo, but in vitro are able to scavenge the peroxyl radicals involved in the TRAP assay.
引用
收藏
页码:747 / 753
页数:7
相关论文
共 50 条
[1]   Simple methods of quantifying oxidation products and antioxidant potential of low density lipoproteins [J].
Ahotupa, M ;
Ruutu, M ;
Mantyla, E .
CLINICAL BIOCHEMISTRY, 1996, 29 (02) :139-144
[2]  
Becker BN, 1997, J AM SOC NEPHROL, V8, P475
[3]   An automated, specific, spectrophotometric method for measuring ascorbic acid in plasma (EFTSA) [J].
Benzie, IFF .
CLINICAL BIOCHEMISTRY, 1996, 29 (02) :111-116
[4]   Glutathione antioxidant system as a marker of oxidative stress in chronic renal failure [J].
CeballosPicot, I ;
WitkoSarsat, V ;
MeradBoudia, M ;
Nguyen, AT ;
Thevenin, M ;
Jaudon, MC ;
Zingraff, J ;
Verger, C ;
Jungers, P ;
DescampsLatscha, B .
FREE RADICAL BIOLOGY AND MEDICINE, 1996, 21 (06) :845-853
[5]   Total plasma antioxidant capacity predicts thrombosis-prone status in NIDDM patients [J].
Ceriello, A ;
Bortolotti, N ;
Pirisi, M ;
Crescentini, A ;
Tonutti, L ;
Motz, E ;
Russo, A ;
Giacomello, R ;
Stel, G ;
Taboga, C .
DIABETES CARE, 1997, 20 (10) :1589-1593
[6]  
CONTI M, 1991, CLIN CHEM, V37, P1273
[7]  
CRISTOL JP, 1994, NEPHROL DIAL TRANSPL, V9, P389
[8]   Role of bilirubin in the regulation of the total peroxyl radical trapping antioxidant activity of plasma in sickle cell disease [J].
Dailly, E ;
Urien, S ;
Barré, J ;
Reinert, P ;
Tillement, JP .
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 1998, 248 (02) :303-306
[9]   MYELOPEROXIDASE, A CATALYST FOR LIPOPROTEIN OXIDATION, IS EXPRESSED IN HUMAN ATHEROSCLEROTIC LESIONS [J].
DAUGHERTY, A ;
DUNN, JL ;
RATERI, DL ;
HEINECKE, JW .
JOURNAL OF CLINICAL INVESTIGATION, 1994, 94 (01) :437-444
[10]   THE ROLE OF LIPID-PEROXIDATION AND ANTIOXIDANTS IN OXIDATIVE MODIFICATION OF LDL [J].
ESTERBAUER, H ;
GEBICKI, J ;
PUHL, H ;
JURGENS, G .
FREE RADICAL BIOLOGY AND MEDICINE, 1992, 13 (04) :341-390