Ageing in differentiated cells.
D000375:Aging; D001921:Brain / Q000166:cytology; D002454:Cell Differentiation; D002455:Cell Division; D002460:Cell Line; D002468:Cell Physiological Phenomena; D002470:Cell Survival; D002477:Cells / Q000378:metabolism; D046508:Culture Techniques; D003643:Death; D004798:Enzymes / Q000378:metabolism; D005347:Fibroblasts / Q000378:metabolism; D006801:Humans; D008017:Life Expectancy; D009132:Muscles / Q000166:cytology; D009474:Neurons / Q000502:physiology; D013936:Thymidine / Q000378:metabolism; D014316:Tritium
D004798:Enzymes; D014316:Tritium; D013936:Thymidine