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Telomerase Gene (hTERT) and Survival: Results From Two Swedish Cohorts of Older Adults
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI).
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI).
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI). Karolinska Institutet, Sweden.
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI).
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2016 (English)In: The journals of gerontology. Series A, Biological sciences and medical sciences, ISSN 1079-5006, E-ISSN 1758-535X, Vol. 71, no 2, 188-195 p.Article in journal (Refereed) Published
Abstract [en]

Telomere length has been associated with longevity. As telomere length is partly determined by the human telomerase reverse transcriptase (hTERT), we investigated the association between an hTERT polymorphism located in its promoter region ((-) (1327)T/C) and longevity in two cohorts of older adults. Participants from the Kungsholmen project (KP; n = 1,205) and the Swedish National study of Aging and Care in Kungsholmen (SNAC-K; n = 2,764) were followed for an average period of 7.5 years. The main outcomes were hazard ratios (HR) of mortality and median age at death. In both cohorts, mortality was lower in female T/T carriers, aged 75+ years in KP (HR = 0.8, 95% CI: 0.5-0.9) and 78+ years in SNAC-K (HR = 0.6, 95% CI: 0.4-0.8) compared with female C/C carriers. T/T carriers died 1.8-3 years later than the C/C carriers. This effect was not present in men, neither in SNAC-K women aged 60-72 years. The association was not modified by presence of cancer, cardiovascular diseases, number of chronic diseases, or markers of inflammation, and did not interact with APOE genotype or estrogen replacement therapy. The gender-specific increased survival in T/T carriers can be due to a synergistic effect between genetic background and the life-long exposure to endogenous estrogen.

Place, publisher, year, edition, pages
2016. Vol. 71, no 2, 188-195 p.
Keyword [en]
Mortality, Genetics, Telomerase, Longevity, Aging
National Category
Geriatrics Gerontology, specializing in Medical and Health Sciences
Identifiers
URN: urn:nbn:se:su:diva-112152DOI: 10.1093/gerona/glu222ISI: 000374212600006PubMedID: 25452402OAI: oai:DiVA.org:su-112152DiVA: diva2:779102
Available from: 2015-01-12 Created: 2015-01-09 Last updated: 2017-12-05Bibliographically approved

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The journals of gerontology. Series A, Biological sciences and medical sciences
GeriatricsGerontology, specializing in Medical and Health Sciences

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