title: The effect of vitamin d on aldosterone and health status in patients with heart failure.
abstract: BACKGROUND
  Vitamin D deficiency is associated with heart failure (HF) events, and in animal models vitamin D down-regulates renin-angiotensin-aldosterone system hormones.
  
  
  METHODS
  Patients with New York Heart Association (NYHA) functional class II-IV HF and a 25OH-D level ≤37.5 ng/mL received 50,000 IU vitamin D3 weekly (n = 31) or placebo (n = 33) for 6 months. Serum aldosterone, renin, echocardiography, and health status were determined at baseline and 6 months.
  
  
  RESULTS
  Mean age of participants was 65.9 ± 10.4 years, 48% were women, 64% were African American, mean ejection fraction was 37.6 ± 13.9%, 36% were in NYHA functional class III, and 64% were in class II. The vitamin D group increased serum 25OH-D (19.1 ± 9.3 to 61.7 ± 20.3 ng/mL) and the placebo group did not (17.8 ± 9.0 to 17.4 ± 9.8 ng/mL). Aldosterone decreased in the vitamin D group (10.0 ± 11.9 to 6.2 ± 11.6 ng/dL) and not in the placebo group (8.9 ± 8.6 to 9.0 ± 12.4 ng/dL; P = .02). There was no difference between groups in renin, echocardiographic measures, or health status from baseline to 6 months. Modeling indicated that variables which predicted change in aldosterone included receiving vitamin D, increasing age, African American race, and lower glomerular filtration rate.
  
  
  CONCLUSIONS
  Vitamin D3 repletion decreases aldosterone in patients with HF and low serum vitamin D. Vitamin D may be an important adjunct to standard HF therapy. Further study will assess if vitamin D provides long-term benefit for patients with HF.
authors: Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado. Electronic address: rebecca.boxer@ucdenver.edu.
authors: Rebecca S
authors: RS
authors: Boxer
authors: Department of Medicine, Case Western Reserve University, Cleveland, Ohio.
authors: Brian D
authors: BD
authors: Hoit
authors: Center for Clinical Investigation, Case Western Reserve University, Cleveland, Ohio.
authors: Brian J
authors: BJ
authors: Schmotzer
authors: Department of Medicine, Case Western Reserve University, Cleveland, Ohio.
authors: Gregory T
authors: GT
authors: Stefano
authors: McLaren Health Care, Bay City, Michigan.
authors: Amanda
authors: A
authors: Gomes
authors: Department of Medicine, Case Western Reserve University, Cleveland, Ohio.
authors: Lavinia
authors: L
authors: Negrea
mesh_terms: D000368:Aged; D000450:Aldosterone / Q000097:blood*; D015415:Biomarkers / Q000097:blood; D004311:Double-Blind Method; D005260:Female; D006304:Health Status; D006333:Heart Failure / Q000097:blood* / Q000175:diagnosis / Q000188:drug therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D016896:Treatment Outcome; D014807:Vitamin D / Q000627:therapeutic use*
chemical_list: D015415:Biomarkers; D014807:Vitamin D; D000450:Aldosterone
keywords: Hormones; aldosterone; health status; heart failure; vitamin D