Influence of L-arginine and vitamin C on the autonomic nervous system in chronic heart failure secondary to ischemic cardiomyopathy

Am J Cardiol. 2004 Mar 1;93(5):650-4. doi: 10.1016/j.amjcard.2003.11.043.

Abstract

In this study, we used spectral analysis to assess changes in respiratory recording variability during infusion of L-arginine and vitamin C, individually or together, in patients with chronic heart failure. We found that healthy subjects have a substantial ability to modulate sympathetic-mediated peripheral vascular resistance through endothelial synthesis of nitric oxide. Patients with chronic heart failure lose this ability.

Publication types

  • Clinical Trial
  • Randomized Controlled Trial

MeSH terms

  • Algorithms
  • Antioxidants / pharmacology*
  • Arginine / pharmacology*
  • Ascorbic Acid / pharmacology*
  • Autonomic Nervous System / drug effects*
  • Cardiomyopathy, Dilated / etiology
  • Cardiomyopathy, Dilated / physiopathology*
  • Cross-Over Studies
  • Female
  • Humans
  • Male
  • Middle Aged
  • Myocardial Ischemia / complications
  • Respiration / drug effects*
  • Signal Processing, Computer-Assisted
  • Single-Blind Method
  • Vascular Resistance / drug effects

Substances

  • Antioxidants
  • Arginine
  • Ascorbic Acid