Sirtuin 1 as a potential biomarker of undernutrition in the elderly: a narrative review

Undernutrition and inflammatory processes are predictors of early mortality in the elderly and require a rapid and accurate diagnosis. Currently, there are laboratory markers for assessing nutritional status, but new markers are still being sought. Recent studies suggest that sirtuin 1 (SIRT1) has the potential to be a marker for undernutrition. This article summarizes available studies on the association of SIRT1 and undernutrition in older people. Possible associations between SIRT1 and the aging process, inflammation, and undernutrition in the elderly have been described. The literature suggests that low SIRT1 levels in the blood of older people may not be associated with physiological aging processes, but with an increased risk of severe undernutrition associated with inflammation and systemic metabolic changes.

Automated summary

Undernutrition and inflammatory processes are predictors of early mortality in the elderly, and there is a need for rapid and accurate diagnosis. SIRT1 has shown potential as a marker for undernutrition, and this article summarizes the available studies on its association with undernutrition in older people. The literature suggests that low SIRT1 levels in the blood of older individuals may be linked to increased risk of severe undernutrition associated with inflammation and systemic metabolic changes, rather than physiological aging processes.