日光对皮肤弹性的影响  

Effects of ultraviolet radiation and age on elastic properties of the skin

作　　者：刘娜[1] 王学民[1] 陈力[2] 孙丕文[2] 袁肖海[1] 袁超[1] 周玉田[1] 储蕙[1] 

机构地区：[1]上海市皮肤病性病医院,200050 [2]北京宝洁技术有限公司

出　　处：《中华皮肤科杂志》2007年第1期51-53,共3页Chinese Journal of Dermatology

摘　　要：目的观察日光和年龄对皮肤弹性的影响。方法问卷调查受试者（郊县组94例，市区组105例）的日光曝晒情况，并应用皮肤弹性测量仪测量外眦部、鼻唇沟及眶下皮肤弹性参数，包括：弹性，黏弹性，可扩展性和张力参数。比较不同年龄组间、市区与郊县组间各弹性参数间的差异。结果市区和郊县各弹性参数均与年龄有较好的相关性，随年龄增长，皮肤各弹性参数均下降。郊县组与市区组比较，弹性和黏弹性参数差异较小，而可扩展性和张力参数差异较大。结论弹性和黏弹性参数可能与内在老化有关，而可扩展性和张力参数可能与光老化有关。Objective To investigate the effects of ultraviolet radiation and age on elastic properties of the skin. Methods Cumulative sun exposure of 94 rural and 105 urban subjects in various age groups was assessed by means of a retrospective questionnaire. Elastic properties of the outer canthus, nasolabial fold, and infraorbital skin were measured with a cutometer. Results At the sites tested, almost all the elastic parameters of the skin （ including elasticity, viscoelasticity, extensibility, and tonicity ） were significantly decreased with age in both rural and urban groups （ P 〈 0.01 ）. Meanwhile, in almost all age groups, there was a significant decrease of skin extensibility and tonicity in rural group compared with urban groups （ P 〈 0.01 ）. Nevertheless, almost no significant difference was found in skin elasticity and viscoelasticity between the two groups. Conclusions The results suggest that the elastic parameters of the skin are significantly decreased with age. The decrease of skin elasticity and viscoelasticity may be mainly due to intrinsic aging, whereas photoaging may account for the reduction of skin extensibility and tonicity.

关 键 词：紫外线 皮肤衰老 皮肤弹性 皮肤弹性测量仪 光老化 

分 类 号：R686[医药卫生—骨科学]