Correlates of longitudinal leukocyte telomere length in the Costa Rican Longevity Study of Healthy Aging (CRELES): On the importance of DNA collection and storage procedures

Luis Rosero-Bixby, David H Rehkopf, William Dow, Jue Lin, Elissa S Epel, Jorge Azofeifa and Alejandro Leal

PLOS ONE, 2019, vol. 14, issue 10, 1-18

Abstract: The objective is to identify cofactors of leukocyte telomere length (LTL) in a Latin American population, specifically the association of LTL with 36 socio-demographic, early childhood, and health characteristics, as well as with DNA sample collection and storage procedures. The analysis is based on longitudinal information from a subsample of 1,261 individuals aged 60+ years at baseline from the Costa Rican Study of Longevity and Healthy Aging (CRELES): a nationally representative sample of elderly population. Random effects regression models for panel data were used to estimate the associations with LTL and its longitudinal changes. Sample collection procedures and DNA refrigerator storage time were strongly associated with LTL: telomeres are longer in blood collected in October-December, in DNA extracted from

Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0223766

DOI: 10.1371/journal.pone.0223766

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