A Potential Oxidative Biomarker of Aging in Urine
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Since aging is caused by a collection of distinct, interacting processes of damage accumulation and reactions to that damage, it is unlikely that there will ever exist one, unified, undisputed measure of biological age. All present candidate measures of aging are composites of many individual metrics, even the epigenetic clock, which is a specific pattern of many different DNA methylation locations in the genome. New, simple biomarkers of aging that reflect one process or aspect of age-related degeneration are still of interest, however, as they might turn out to improve existing combined measures of aging if added into the mix. So researchers continue to work in this area of development, turning out results such as the data presented in this open access paper.

processes of damage accumulationepigenetic clockbiomarkers of aging

The rate of aging differs among individuals due to variations in the genetic and environment background. Chronological age, which is simply calculated according to birth date, is an imprecise measure of biological aging. The disconnection between chronological age and lifespan has led to a search for effective and validated biomarkers of aging. A good aging biomarker should be based on mechanisms described by major theories of aging, which mainly include oxidative

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