Asymmetric dimethylarginine and augmentation index in newly diagnosed patients with hypertension

Angiology. 2015 Jan;66(1):43-8. doi: 10.1177/0003319713513145. Epub 2013 Dec 3.

Abstract

Pulse wave velocity (PWV), augmentation index (Aix), and central aortic pressure (CAP) are arterial stiffness markers of endothelial dysfunction (ED). We investigated the relationship between arterial stiffness parameters and asymmetric dimethylarginine (ADMA; a marker of ED), in newly diagnosed patients with hypertension (n = 101; 61 females). These patients were investigated in accordance with the recommendations of hypertension guidelines. Arterial stiffness was measured, and serum ADMA and C-reactive protein (CRP; a marker of inflammation) levels were determined. In both women and men, there was no difference in terms of age, body mass index, systolic and diastolic blood pressures, PWV, CAP and the levels of ADMA, while Aix and CRP levels were significantly higher in women (P = .004, P = .046, respectively). In the whole group, ADMA levels correlated with Aix (Pearson r = .237, P = .024). Our findings provide further evidence of a link between arterial stiffness and ED in newly diagnosed patients with hypertension.

Keywords: ADMA; CRP; arterial stiffness; augmentation index; central aortic pressure; pulse wave velocity.

MeSH terms

  • Adult
  • Age Factors
  • Alcohol Drinking / adverse effects
  • Aorta / physiopathology*
  • Arginine / analogs & derivatives*
  • Arginine / blood
  • Arterial Pressure
  • Biomarkers / blood
  • C-Reactive Protein / analysis
  • Female
  • Humans
  • Hypertension / blood
  • Hypertension / diagnosis*
  • Hypertension / etiology
  • Hypertension / physiopathology
  • Inflammation Mediators / blood
  • Male
  • Middle Aged
  • Predictive Value of Tests
  • Pulse Wave Analysis
  • Risk Factors
  • Sex Factors
  • Smoking / adverse effects
  • Vascular Stiffness*

Substances

  • Biomarkers
  • Inflammation Mediators
  • N,N-dimethylarginine
  • C-Reactive Protein
  • Arginine