The annals of molecular biology have long documented a fundamental paradox regarding DNA methylation: whether the attachment of methyl groups to cytosine-phosphate-guanine dinucleotides represents merely a passive consequence of gene silencing or constitutes the primary mechanism through which transcriptional repression is actively maintained. This decades-old debate has now been resolved through elegant experimental work published…
Understanding why individuals of the same chronological age often have different health outcomes has long puzzled scientists. Biological age, which reflects a person’s physiological state, offers a more precise measure of aging than chronological age. A recent study titled “Cell-type specific epigenetic clocks to quantify biological age at cell-type resolution“ introduces a transformative tool to…