ProgeriaCell SurvivalAging, PrematureWerner SyndromeLamin Type AMice, TransgenicSurvival RateCockayne SyndromeSkin AbnormalitiesTrichothiodystrophy SyndromesLipodystrophyRecQ HelicasesApoptosisCell AgingFibroblastsCells, CulturedCell LineEhlers-Danlos SyndromeDisease-Free SurvivalMutationFarnesyltranstransferaseSyndromeLongevityGalactosyltransferasesSurvivalProtein PrecursorsSignal TransductionDisease Models, AnimalMice, Inbred C57BLPhenotypeMice, Knockout