Proposing the IMM-AGE Metric to Measure the Aging of the Immune System

Determinations of biological age based on ever more detailed measurements of human cellular biochemistry are known as clocks. Biological age is distinct from chronological age, as different people age at somewhat different rates. Aging is an accumulation of cell and tissue damage and the consequences of that damage; more damage means a higher biological age. The best known clock examples are the well known varieties of epigenetic clock, based on patterns of DNA methylation that decorate the genome. In recent years, researchers have been rapidly developing other sorts of clock, using other measures of cellular biochemistry and metabolism. The one here is an example of the type, focused on immune system function.

biological ageaccumulation of cell and tissue damageepigenetic clockDNA methylationgenomemetabolismimmune system

The immune system is the critical function in the body for managing health. It is a complex system with hundreds of different cell-types. Until now, no metric had existed to quantify an individual’s immune status. New data, while requiring further development, describes a metric (called IMM-AGE) by which we can accurately understand a person’s immune status, providing increased information for accurate prediction and management of risks for disease and death.

This new capability will have drug development implications: Given

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