Telomere shortening is a marker of aging and therefore telomere length might be related to disease progression and survival. To address these questions, we measured leukocyte telomere length (LTL) in male participants from the Zutphen Elderly Study. LTL was measured by quantitative polymerase chain reaction in 203 men: mean aged 78 years in 1993 and 75 surviving participants mean aged 83 years in 2000. During 7 years of follow-up, 105 men died. Cox proportional hazards models were used to estimate hazard ratios for all-cause and cause-specific mortality. We found that LTL declined with a mean of 40.2 bp/year, and LTL values measured in 1993 and 2000 correlated significantly (r = .51, p < .001). Longer telomeres at baseline were not predictive for all-cause mortality, cardiovascular mortality, or cancer mortality. These results suggest that LTL decreases with increasing age and that LTL is not related to mortality in men aged more than 70 years.
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http://dx.doi.org/10.1093/gerona/glq164 | DOI Listing |
J Clin Med
January 2025
Departamento de Genética, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez (INNNMVS), Mexico City 14269, Mexico.
: Antiseizure drugs (ASDs) are the primary therapy for epilepsy, and the choice varies according to seizure type. Epilepsy patients experience chronic mitochondrial oxidative stress and increased levels of pro-inflammatory mediators, recognizable hallmarks of biological aging; however, few studies have explored aging markers in epilepsy. Herein, we addressed for the first time the impact of ASDs on molecular aging by measuring the telomere length (TL) and mtDNA copy number (mtDNA-CN).
View Article and Find Full Text PDFInt J Mol Sci
December 2024
Department of Diabetes, Institute of Rural Health, 20-090 Lublin, Poland.
Telomere shortening has been linked to type 2 diabetes (T2D) and its complications. This study aims to determine whether leukocyte telomere length (LTL) could be a useful marker in predicting the onset of complications in patients suffering from T2D. Enrolled study subjects were 147 T2D patients.
View Article and Find Full Text PDFAnimals (Basel)
January 2025
Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium.
Telomere length (TL) has gained attention as a biomarker for longevity and productivity in dairy cattle. This study explored the association between neonatal TL in Holstein calves and lifetime parameters (lifespan, milk production, and reproduction). Blood samples were collected from 210 calves (≤10d old) across four dairy farms in Flanders, Belgium.
View Article and Find Full Text PDFJ Aging Health
January 2025
Department of Nutritional Sciences, University of Michigan School of Public Health, Ann Arbor, MI, USA.
Objectives: To examine the association of social connections with blood leukocyte telomere length (LTL) and all-cause mortality in older Costa Ricans.
Methods: Utilizing data from the Costa Rican Longevity and Healthy Aging Study (CRELES), a prospective cohort of 2827 individuals aged 60 and above followed since 2004, we constructed a Social Network Index (SNI) based on marital status, household size, interaction with non-cohabitating adult children, and church attendance. We used linear regression to assess SNI's association with baseline LTL ( = 1113), and Cox proportional-hazard models to examine SNI's relationship with all-cause mortality ( = 2735).
Sci Rep
January 2025
Department of Thoracic Surgery, The First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China.
Non-small cell lung cancer (NSCLC), half of which are lung adenocarcinoma (LUAD), is one of the most widely spread cancers in the world. Telomerase, which maintains telomere length and chromosomal integrity, enables cancer cells to avoid replicative senescence. When telomerase is inhibited, cancer cells' senescence began, preventing them from growing indefinitely.
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