title: Plasma total antioxidant activity in comparison with plasma NO and VEGF levels in patients with metabolic syndrome.
abstract: BACKGROUND
  The aim of our study was to estimate plasma antioxidant activity as well as plasma nitric oxide (NO) and vascular endothelial growth factor levels in patients with metabolic syndrome compared with healthy participants.
  
  
  METHODS
  Fifty patients (24 women and 26 men, mean age 55.9 + 11.8 years) with metabolic syndrome were compared with 25 healthy participants (12 women and 13 men, mean age 54.2 + 12.8 years). Plasma total antioxidant activity and plasma levels of NO and VEGF were determined in all participants.
  
  
  RESULTS
  In the patients with metabolic syndrome, plasma total antioxidant activity, nitric oxide, and vascular endothelial growth factor were significantly lower (P < .001) than that observed in healthy participants (3.2 + 1.6 vs 6.4 + 2.1 mM/L), (6.3 + 2.2 vs 9.8 + 2.7 muM/L), and 71.0 + 16.9 vs 137.5 + 12.6 pg/mL), respectively.
  
  
  CONCLUSIONS
  Decreased plasma total antioxidant activity, NO, and VEGF levels in patients with metabolic syndrome reflect significant endothelial dysfunction. This suggests that oxidation-reduction balance disorders might play an important role in this process.
authors.affiliation: Department of Internal Diseases and Cardiological Rehabilitation, Medical University of Lodz, Lodz, Poland.
authors.forename: Marcin
authors.initials: M
authors.lastname: Barylski
authors.forename: Edward
authors.initials: E
authors.lastname: Kowalczyk
authors.forename: Maciej
authors.initials: M
authors.lastname: Banach
authors.forename: Julita
authors.initials: J
authors.lastname: Ciecwierz
authors.forename: Lucjan
authors.initials: L
authors.lastname: Pawlicki
authors.forename: Jan
authors.initials: J
authors.lastname: Kowalski
mesh_terms: D000328:Adult; D000368:Aged; D000975:Antioxidants / Q000032:analysis*; D015415:Biomarkers / Q000097:blood; D016022:Case-Control Studies; D015536:Down-Regulation; D005260:Female; D006801:Humans; D008297:Male; D024821:Metabolic Syndrome / Q000097:blood*; D008875:Middle Aged; D009569:Nitric Oxide / Q000097:blood*; D042461:Vascular Endothelial Growth Factor A / Q000097:blood*
chemical_list: D000975:Antioxidants; D015415:Biomarkers; C467484:VEGFA protein, human; D042461:Vascular Endothelial Growth Factor A; D009569:Nitric Oxide