Potential Role of Nutrient Intake and Malnutrition as Predictors of Uremic Oxidative Toxicity in Patients with End-Stage Renal Disease

Table 5

Oxidative stress markers and antioxidant defenses in blood samples of hemodialysis patients () according global objective assessment (GOA).

Variables	Nutritional risk/mild malnutrition ()	Moderate malnutrition ()	value
Molecular oxidation
PCn (nmol/mg pt)			0.400
MDA ^-8			0.729
Antioxidant defenses
TAC (mM)			0.911
npAC (mM)			0.332
GPx (nmol/[ml/min.])			0.287
Pro- and antioxidant minerals
Iron (μg/l)			0.584
Zinc (μg/l)			0.457
Selenium (μg/l)			0.240
Manganese (μg/l)			0.489

One patient with adequate nutrition in GOA was excluded. PCn: carbonyl proteins; MDA: malondialdehyde; TAC: total antioxidant capacity; npAC: nonprotein antioxidant capacity; GPx: glutathione peroxidase activity. One patient with adequate nutrition in GOA was excluded. Values expressed as the . values indicate no statistical difference among the groups stratified according to GOA ().