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Association of telomere length in peripheral blood leukocytes with the presence of atrial fibrillation in elderly male
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  • Chuanbin Liu,
  • Jing Bai,
  • Qing Dan,
  • Xue Yang,
  • Zihao Fu,
  • Xu Lu,
  • Xiaoye Xie,
  • Li Fan,
  • Feng Cao,
  • yang li,
  • Jianwei Liu
Chuanbin Liu
Medical School of Chinese PLA
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Jing Bai
Medical School of Chinese PLA
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Qing Dan
Chinese PLA General Hospital
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Xue Yang
Chinese PLA General Hospital
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Zihao Fu
Medical School of Chinese PLA
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Xu Lu
Medical School of Chinese PLA
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Xiaoye Xie
Chinese PLA General Hospital
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Li Fan
Chinese PLA General Hospital
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Feng Cao
Chinese PLA General Hospital
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yang li
Chinese PLA General Hospital
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Jianwei Liu
Chinese PLA General Hospital
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Abstract

Objective: Telomeres gradually shorten and the incidence of atrial fibrillation (AF) gradually increases with age. However, the association of telomere length with AF is still controversial. This study aims to determine the correlation between the leukocyte telomere length (LTL) and the presence of AF. Methods: This study recruited 96 AF male patients and 97 healthy male controls (aged ≥60 years) Anthropometric, clinical and laboratory analysis were performed on all subjects. Blood LTL was detected by quantitative real-time PCR assay. PGC-1α concentration was evaluated by ELISA method. The association between LTL and AF was analyzed by simple and multivariate logistic regression. Results: LTL in AF patients was significantly shorter than controls (P < 0.001). Logistic regression analysis confirmed that LTL was inversely associated with the presence of AF (OR 0.428, 95% confidence interval [CI]: 0.268-0.684; P < 0.001). Furthermore, we conducted a subgroup analysis of different ages and different types of AF and found that LTL was negatively correlated with age (r = -0.148, P = 0.040), and there was no statistical difference among different types of AF. We found that the telomere-associated molecule serum PGC-1α concentration was also negatively related to AF (OR 0.991, 95% CI: 0.985-0.997; P = 0.004) . Conclusion: LTL and serum PGC-1α concentration are inversely correlated with the presence of AF in elderly male.