RT Journal Article SR Electronic T1 Telomere length in circulating leukocytes is associated with lung function and disease JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP P4727 VO 42 IS Suppl 57 A1 Holger Schulz A1 Elina Sillanpää A1 Stefan Karrasch A1 Alexessander Couto Alves A1 Veryan Codd A1 Iiris Hovatta A1 Jessica L. Buxton A1 Christopher P. Nelson A1 Linda Broer A1 Sara Hägg A1 Massimo Mangino A1 Gonneke Willemsen A1 Kirsi H. Pietiläinen A1 Manuel A.R. Ferreira A1 Najaf Amin A1 Ben A. Oostra A1 Heli M. Bäckmand A1 Markku Peltonen A1 Seppo Sarna A1 Taina Rantanen A1 Sarianna Sipila A1 Tellervo Korhonen A1 Pamela A.F. Madden A1 Christian Gieger A1 Rudolf A. Jörres A1 Joachim Heinrich A1 Jürgen Behr A1 Rudolf M. Huber A1 Annette Peters A1 Konstantin Strauch A1 H.-Erich Wichmann A1 Melanie Waldenberger A1 Alexandra I.F. Blakemore A1 Eco J.C. de Geus A1 Nyholt Nyholt A1 Anjali K. Henders A1 Päivi L. Piirilä A1 Ida Surakka A1 Aila Rissanen A1 Patrik K.E. Magnusson A1 Ana Viñuela A1 Nicholas G. Martin A1 Nancy L. Pedersen A1 Dorret I. Boomsma A1 Tim D. Spector A1 Cornelia M. van Duijn A1 Jaakko Kaprio A1 Nilesh J. Samani A1 Marjo-Riitta Jarvelin A1 Eva Albrecht YR 2013 UL http://erj.ersjournals.com/content/42/Suppl_57/P4727.abstract AB Rationale: Telomere length is recognized as a marker of biological age. Previous studies reported decreased telomere length in patients with chronic obstructive pulmonary disease (COPD), suggesting premature aging due to environmental exposure and/or chronic inflammation. Since the lungs are continuously exposed to environmental hazards, lung function per se may be a surrogate marker for biological age in light of the large inter-individual variability observed.Objectives: We investigated the association of telomere length with respiratory disease (COPD and asthma), and spirometric indices: forced expiratory volume in one second (FEV1), forced vital capacity (FVC) and FEV1/FVC.Methods: Our meta-analysis of 14 studies included 1,189 COPD cases with 16,115 controls, 2,834 asthma cases with 28,195 controls and spirometric parameters of 13,100 individuals. Associations were tested by linear regression, adjusting for age, sex, and smoking status.Measurements and Main Results: We observed negative associations between telomere length and COPD (β=-0.0676, p=0.018) as well as asthma (β=-0.0452, p=0.024) with stronger effects in women compared to men. The investigation of spirometric indices showed positive associations between telomere length and FEV1 (p=1.62x10-7), FVC (p=2.38x10-4), and their ratio FEV1/FVC (p=6.13x10-3). The associations were weaker in apparently healthy subjects compared to COPD or asthma patients.Conclusions: Our results indicate that lung function may reflect biological aging primarily due to intrinsic processes which are likely to be aggravated in lung diseases. Shortened telomeres in lung disease suggest that aging processes are involved in the pathogenesis of COPD and asthma.