IJE Advance Access published online on October 1, 2009
International Journal of Epidemiology, doi:10.1093/ije/dyp298
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Commentary: Raising the bar on telomere epidemiology
The Center of Human Development and Aging, University of Medicine and Dentistry of New Jersey, New Jersey Medical School, Newark, NJ 07103, USA. E-mail: avivab@umdnj.edu
Accepted 3 August 2009
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Ehrlenbach and co-workers1 report, in this issue of the International Journal of Epidemiology, findings of a longitudinal, population-based study in 510 individuals. They observed that individuals who died during a 10-year follow-up had shorter relative telomere length (RTL), measured by quantitative polymerase chain reaction (qPCR), than those who survived. They also confirmed from the previous work that the rate of leucocyte telomere length (LTL) shortening was proportional to baseline LTL.2
Though a controversy had existed about whether LTL predicts survival in the elderly,3,4 more recent studies in same-sex elderly twins5,6 showed that the co-twin with the shorter LTL was likely to
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