1Helfrich YR,Sachs DL,Voorhees JJ.Overview of skinaging and photoaging[J].Dermatology Nursing,2008,20(3):177-183.
2Limoli CL,Kaplan MI,Giedzinski E,et al.Attenuationof radiation reduced genomic instability by free radicalscavengers and cellular proliferation[J].Free RadicBio.Med,2001,31(1):10-11.
3Zou Y,Song E,Jin R.Age-dependent changes in skinsurface assessed by a novel Two-dimensional image a-nalysis[J].Skin Res Technol,2009,15(4):399-406.
4Bohr VA.Repair of oxidative DNA damage in nuclearand mitochondrial DNA,and some changes with agingin mammalian cells[J].Free Radic Bio.Med,2002,39(9):804-812.
5Giacomoni PU,Rein G.Factor of skin aging share com-mon mechanisms[J].Biogerontology,2001,2(4):219-229.