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Clin Res Cardiol. 2015 Oct;104(10):812-21. doi: 10.1007/s00392-015-0848-x. Epub 2015 Apr 4.

Leukocyte telomere length and left ventricular function after acute ST-elevation myocardial infarction: data from the glycometabolic intervention as adjunct to primary coronary intervention in ST elevation myocardial infarction (GIPS-III) trial.

Author information

1
Department of Cardiology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9700 RB, Groningen, The Netherlands.
2
Department of Intensive Care, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
3
Department of Cardiology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9700 RB, Groningen, The Netherlands. p.van.der.harst@umcg.nl.
4
Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands. p.van.der.harst@umcg.nl.

Abstract

BACKGROUND:

Telomere length has been associated with coronary artery disease and heart failure. We studied whether leukocyte telomere length is associated with left ventricular ejection fraction (LVEF) after ST-elevation myocardial infarction (STEMI).

METHODS AND RESULTS:

Leukocyte telomere length (LTL) was determined using the monochrome multiplex quantitative PCR method in 353 patients participating in the glycometabolic intervention as adjunct to primary percutaneous coronary intervention in STEMI III trial. LVEF was assessed by magnetic resonance imaging. The mean age of patients was 58.9 ± 11.6 years, 75 % were male. In age- and gender-adjusted models, LTL at baseline was significantly associated with age (beta ± standard error; -0.33 ± 0.01; P < 0.01), gender (0.15 ± 0.03; P < 0.01), TIMI flow pre-PCI (0.05 ± 0.03; P < 0.01), TIMI flow post-PCI (0.03 ± 0.04; P < 0.01), myocardial blush grade (-0.05 ± 0.07; P < 0.01), serum glucose levels (-0.11 ± 0.01; P = 0.03), and total leukocyte count (-0.11 ± 0.01; P = 0.04). At 4 months after STEMI, LVEF was well preserved (54.1 ± 8.4 %) and was not associated with baseline LTL (P = 0.95). Baseline LTL was associated with n-terminal pro-brain natriuretic peptide (NT-proBNP) at 4 months (-0.14 ± 0.01; P = 0.02), albeit not independent for age and gender.

CONCLUSION:

Our study does not support a role for LTL as a causal factor related to left ventricular ejection fraction after STEMI.

KEYWORDS:

Left ventricular ejection fraction; Metformin; ST-elevation myocardial infarction; Telomeres

PMID:
25840550
PMCID:
PMC4580719
DOI:
10.1007/s00392-015-0848-x
[Indexed for MEDLINE]
Free PMC Article

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