皮肤光老化除受年龄因素影响外，与日光照射亦有直接关系，由日光照射引起的皮肤老化称为光老化。本病常见于农民、水手，典型的临床表现为皱纹、皮肤松弛、毛细血管扩张、皮肤色素不均匀等。日常要避免过多的日光暴露，外用遮光剂、抗氧化剂等可能有效。
There was absent of a reliable and practical human model for research of human skin photoaging yet.
皮肤光老化目前缺乏可靠实用的人体模型。
参考来源 - 8The difference between maximal and minimal distances is growing with the growing of individual UV exposure dose,and the difference between the two areas is growing greater with age growing,and this index could reflect the photo-aging of skin.
2、手部皮肤纹理的纹理间距差值随个体紫外线暴露水平的递增呈现递增的趋势,并且随着年龄的增加,两地区的差异逐渐增大,可以考虑作为反映皮肤光老化的指标。
参考来源 - 沈阳与三亚两地人群紫外线暴露对手背部皮肤纹理影响的比较研究·2,447,543篇论文数据，部分数据来源于NoteExpress
改性B72比纯b 72有更好的耐光老化性能。
Compared with B72, the modified one has better anti-photodegradation.
光老化是指皮肤衰老过程中由光线特别是紫外线辐射所造成的损伤。
Photoaging refers to cutaneous damage caused by light, especially ultraviolet radiation exposure, in the process of skin aging.
目的探讨皮肤光老化与真皮成纤维细胞线粒体DNA复制控制区点突变的关系。
Objective to investigate the relationships between skin photoaging and point mutations in mitochondrial DNA (mtDNA) control region for replication of dermal fibroblast.
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