Abstract
AIMS: Anaemia is highly prevalent and associated with poor prognosis in patients with chronic heart failure (CHF). Reduced erythroid proliferation capacity of haematopoietic progenitor cells is associated with reduced telomere length, a marker of cellular ageing. We hypothesize that short telomere length contributes to the susceptibility to develop anaemia in patients with CHF.
METHODS AND RESULTS: We studied 875 CHF patients, of whom 254 (29%) fulfilled the WHO criteria of anaemia. Telomere length in DNA from peripheral leucocytes was measured with real-time quantitative polymerase chain reaction. Age, gender, and baseline differences adjusted telomere length was correlated with haemoglobin levels (partial r = 0.130; P = 0.011). One standard deviation shorter telomere length was associated with an increased risk of having anaemia [odds ratio (OR), 1.31; 95% confidence interval (CI), 1.12-1.53; P = 0.001]. This observation was not affected by adjustment for potential confounders (OR, 1.38; 95% CI, 1.05-1.81; P = 0.021 after adjustment for age, gender, erythropoietin levels, renal function, left ventricular ejection fraction, age of CHF onset, blood pressure, history of stroke, diabetes, and B-type natriuretic peptide levels).
CONCLUSION: Shorter telomere length increases the odds of having anaemia in CHF patients. This finding supports the hypothesis that cellular ageing in CHF contributes to the susceptibility to develop anaemia.
| Original language | English |
|---|---|
| Pages (from-to) | 348-53 |
| Number of pages | 6 |
| Journal | European Journal of Heart Failure |
| Volume | 12 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Apr 2010 |
| Externally published | Yes |
Keywords
- Aged
- Aged, 80 and over
- Anemia/etiology
- Biomarkers
- Case-Control Studies
- Cellular Senescence
- Confidence Intervals
- Disease Progression
- Female
- Heart Failure/complications
- Humans
- Leukocytes/pathology
- Linear Models
- Logistic Models
- Male
- Middle Aged
- Natriuretic Peptide, Brain
- Odds Ratio
- Prognosis
- Risk Factors
- Stroke Volume
- Telomere/ultrastructure
- Time Factors
- Ventricular Function, Left