Reactiveoxygenspecies(ROS)suchassuperoxideanionradical,Hydrogenperoxide(H2O2),andhydroxylradicalaregeneratedendogenouslythroughmitochondriarespirationaswellasthrough exogenousoxidizingagentsincludingionizingradiation,heavy metals,andhypoxia.ROSaffectsawiderangeofbiologicalprocesses throughavarietyofmechanisms.Differenthypotheseshavebeen

閱讀全文請見：OxidativestressaltersglobalHistonemodification and DNAmethylation