Frailty and telomere length: cross-sectional analysis in 3537 older adults from the ESTHER cohort
Both telomere length and frailty were observed to be associated with aging. Whether and to what extent telomere length is related to frailty is essentially unknown. In this cross-sectional analysis of baseline data of 3537 community-dwelling adults aged 50 to 75years of a large German cohort study,...
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| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
21 August 2014
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| In: |
Experimental gerontology
Year: 2014, Volume: 58, Pages: 250-255 |
| ISSN: | 1873-6815 |
| DOI: | 10.1016/j.exger.2014.08.009 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.exger.2014.08.009 Verlag, lizenzpflichtig, Volltext: http://www.sciencedirect.com/science/article/pii/S0531556514002459 
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| Author Notes: | Kai-Uwe Saum, Aida Karina Dieffenbach, Aysel Müezzinler, Heiko Müller, Bernd Holleczek, Christa Stegmaier, Katja Butterbach, Matthias Schick, Federico Canzian, Hermann Stammer, Petra Boukamp, Klaus Hauer, Hermann Brenner |
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| 245 | 1 | 0 | |a Frailty and telomere length |b cross-sectional analysis in 3537 older adults from the ESTHER cohort |c Kai-Uwe Saum, Aida Karina Dieffenbach, Aysel Müezzinler, Heiko Müller, Bernd Holleczek, Christa Stegmaier, Katja Butterbach, Matthias Schick, Federico Canzian, Hermann Stammer, Petra Boukamp, Klaus Hauer, Hermann Brenner |
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| 520 | |a Both telomere length and frailty were observed to be associated with aging. Whether and to what extent telomere length is related to frailty is essentially unknown. In this cross-sectional analysis of baseline data of 3537 community-dwelling adults aged 50 to 75years of a large German cohort study, we assessed the hypothesis that shorter telomere length might be a biological marker for frailty. Using whole blood DNA we examined mean telomere repeat copy to single gene copy number (T/S ratio) using quantitative PCR. Construction of a frailty index (FI) was based on a deficit accumulation approach, which quantifies frailty as ratio of the deficits present divided by the total number of deficits considered. Mean FI was determined according to age by tertiles of T/S ratio. Furthermore, we used correlation analyses stratified for gender and age groups to examine the association of the T/S ratio with frailty. Mean FI value was similar across tertiles of the T/S ratio (0.24±0.14, 0.24±0.14 and 0.23±0.14, respectively (p=0.09)), and FI and the T/S ratio were uncorrelated in gender- and age-specific analyses. In conclusion, T/S ratio and frailty were unrelated in this large sample of older adults. T/S ratio may therefore not be a meaningful biological marker for frailty. | ||
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