Greater interdependence among stochastic, failure-and-repair sub-systems within individuals is linked to faster demographic senescence, yielding population-level mortality curves derived via diffusion approximations.
Neuron-directed loss of POLK in primary mouse cortical neurons and human iPSC-derived forebrain neurons reduces EdU incorporation and triggers a senescence-like stress program, including nuclear-envelope defects and altered APP/lysosomal pathways.
Alignment-free k-mer analysis identifies age-associated sequence composition signals in canine buccal DNA (1,187 samples) and cfDNA (100 samples), with stronger patterns in buccal DNA.