Does telomere shortening count?
Engelhardt
M
M
Finke
J
J
D000818:Animals; D001773:Blood Cells / Q000378:metabolism / Q000648:ultrastructure; D018380:Hematopoietic Stem Cell Transplantation; D006412:Hematopoietic Stem Cells / Q000378:metabolism / Q000648:ultrastructure; D006801:Humans; D016615:Telomere / Q000378:metabolism* / Q000648:ultrastructure*