Methylation variability

1. Age is linked with higher methylation variability in humans.

   “We identify systemic shifts in methylation levels, increases in methylation variability, and growing molecular disorder across tissues.”

   Humansmultiple tissuesn = 15,000

   Human tissues share some age-linked patterns in DNA tags

   Nature aging·Jun 26, 2026

1. genetic and environmental factors are associated with methylation variability in silico (deterministic CpG probes, about 90%) (about 90% of CpG probes classed as deterministic).

   “whose methylation variability likely originates due to genetic and general environmental factors”

   In silicodeterministic CpG probes, about 90%

   Disentangling age-dependent DNA methylation: deterministic, stochastic, and nonlinear

   Scientific reports·Apr 28, 2021

1. Methylation levels are associated with methylation variability in silico (quadratic dependence in about 90% of age-associated differentially methylated positions).

   “in about 90% of the age-associated differentially methylated positions, the variability changes as the square of the methylation level”

   In silico

   Disentangling age-dependent DNA methylation: deterministic, stochastic, and nonlinear

   Scientific reports·Apr 28, 2021

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