Association of critically short telomeres with brain and blood markers of ageing and Alzheimer's disease in older adults.

Asrar Lehodey, Perla Kaliman, Cassandre Palix, Robin de Florès, Edelweiss Touron, Anne-Laure Turpin, Séverine Fauvel, Florence Mézenge, Brigitte Landeau, Anne Chocat, Agathe Vrillon, Claire Paquet, Denis Vivien, Vincent de La Sayette, Gaël Chételat, Géraldine Poisnel

Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", NeuroPresage Team, Cyceron, Boulevard Henri Becquerel, BP 5229, 14074, Caen Cedex, France.Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", NeuroPresage Team, Cyceron, Boulevard Henri Becquerel, BP 5229, 14074, Caen Cedex, France. · pubmed

Paper

Abstract

Accumulation of critically short telomeres (CST) is implicated in decreased tissular regenerative capacity and increased susceptibility to degenerative diseases such as Alzheimer's disease (AD). Telomere shortening has also been associated with age-related brain changes. However, it remains unclear whether CST accumulation is directly associated with AD markers or instead amplifies age-related effects, potentially increasing susceptibility of developing AD in cognitively healthy older adults.

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Research summary

The paper investigates the association between critically short telomeres and markers of aging and Alzheimer's disease, which touches on the biological mechanisms underlying aging. However, it primarily focuses on correlational findings rather than addressing root causes or potential interventions for aging itself. Thus, while it contributes to the understanding of aging-related processes, its impact is limited and more incremental than transformative.

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