{
 "approved_by_author": "\u231b",
 "citation": "Petkovich, Daniel A., et al. \"Using DNA methylation profiling to evaluate biological age and longevity interventions.\" Cell metabolism 25.4 (2017): 954-960.",
 "citations": 453,
 "citations_date": "2026-10-02",
 "clock_name": "petkovich",
 "data_type": "DNA methylation",
 "doi": "https://doi.org/10.1016/j.cmet.2017.03.016",
 "journal": "Cell Metabolism",
 "last_author": "Vadim N. Gladyshev",
 "model_type": "elastic net regression",
 "n_features": 90,
 "notes": "Mouse blood DNA-methylation age clock built by regression on reduced-representation bisulfite-sequencing CpGs, estimating biological age and shown to be slowed by lifespan-extending interventions such as caloric restriction and dwarfism.",
 "platform": [
  "bisulfite sequencing"
 ],
 "population": "mice",
 "postprocess": "petkovich",
 "predicts": [
  "chronological age"
 ],
 "research_only": null,
 "species": "Mus musculus",
 "tissue": [
  "whole blood"
 ],
 "training_target": [
  "chronological age"
 ],
 "unit": [
  "months"
 ],
 "version": "0.5.7",
 "year": 2017
}