Genomic DNA was isolated from liver tissue samples from WT and HET mice using Quick DNA universal kit (Zymo Research). Evaluation of the biological age of these samples was done using the Mouse DNAge Epigenetic Aging Clock service offered by Zymo Research. This is a mouse biological age predictor based on DNA methylation levels of a small set of CpG sites [27 (link)]. This method is based on Hovrath’s aging clock [28 (link)] and uses the Simplified Whole-panel Amplification Reaction Method.
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