Journal
FRONTIERS IN CELLULAR NEUROSCIENCE
Volume 16, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fncel.2022.838447
Keywords
aging; frailty; biological clocks; epigenetic clock; circadian clock; socio-economic factors; behavioral disturbances
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Funding
- University of Pavia, Fondo Ricerca Giovani
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Assessing biological age and frailty and predicting lifespan and health status is valuable for interventions to alter the pace of aging and frailty. Finding biological markers and clocks helps guide intervention design and establish the relationship between aging and health trajectories.
What is the value of assessing the biological age and frailty and predicting residual lifespan and health status? The benefit is obvious if we have means to alter the pace of aging and the development of frailty. So far, limited but increasing examples of interventions altering the predicted status indicate that, at least in some cases, this is possible through interventions spanning from the economic-social through drug treatments. Thus, why searching for biological markers, when some clinical and socio-economic indicators do already provide sufficiently accurate predictions? Indeed, the search of frailty biomarkers and of their biological clocks helps to build up a mechanistic frame that may orientate the design of interventions and the time window of their efficacy. Among the candidate biomarkers identified, several studies converge to indicate epigenetic clocks as a promising sensitive biomarker of the aging process. Moreover, it will help to establish the relationship between personal aging and health trajectories and to individuate the check points beyond which biological changes are irreversible.
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