Telomere length, COPD and emphysema as risk factors for lung cancer

Telomeres are DNA–protein structures that protect chromosome ends from degradation and shorten progressively with each cell division [1]. Telomere length measured in peripheral leukocytes has been used to determine an individual's “biological age”, and previous reports have demonstrated that patients with chronic obstructive pulmonary disease (COPD) and/or emphysema have shorter peripheral leukocyte telomere length [2–5]. The presence of COPD and emphysema are independent risk factors for the ultimate development of lung cancer [6, 7]. Leukocyte telomere length should be included among the independent risk factors associated with lung cancer http://ow.ly/uzlg304Qpn6

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