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Telomere shortening: a new prognostic factor for cardiovascular disease post-radiation exposure.

Authors: R R. M'kacher, T T. Girinsky, B B. Colicchio, M M. Ricoul, A A. Dieterlen, E E. Jeandidier, L L. Heidingsfelder, C C. Cuceu, G G. Shim, M M. Frenzel, A A. Lenain, L L. Morat, J J. Bourhis, W M WM. Hempel, S S. Koscielny, J F JF. Paul, P P. Carde, L L. Sabatier
Published: 10/01/2014, Radiation protection dosimetry


Telomere length has been proposed as a marker of mitotic cell age and as a general index of human organism aging. Telomere shortening in peripheral blood lymphocytes has been linked to cardiovascular-related morbidity and mortality. The authors investigated the potential correlation of conventional risk factors, radiation dose and telomere shortening with the development of coronary artery disease (CAD) following radiation therapy in a large cohort of Hodgkin lymphoma (HL) patients. Multivariate analysis demonstrated that hypertension and telomere length were the only independent risk factors. This is the first study in a large cohort of patients that demonstrates significant telomere shortening in patients treated by radiation therapy who developed cardiovascular disease. Telomere length appears to be an independent prognostic factor that could help determine patients at high risk of developing CAD after exposure in order to implement early detection and prevention.

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