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• 基础研究 • 上一篇    下一篇

B段紫外线对豚鼠皮肤的损伤作用

张雯雯1,刘雅娟2,李 云3,陈 强1,李 鹏1,凌 翎1,林晓晨,任淑萍1   

  1. 1.吉林大学公共卫生学院毒理学教研室,吉林 长春 130021;2. 吉林大学公共卫生学院营养与食品卫生学教研室,吉林 长春 130021;3.吉林大学中日联谊医院眼科,吉林 长春 130033)
  • 收稿日期:2007-04-19 修回日期:1900-01-01 出版日期:2008-01-28 发布日期:2008-01-28
  • 通讯作者: 任淑萍

Effects of ultraviolet irradiation on skin of guinea pig

ZHANG Wen-wen1,LIU Ya-juan2,LI Yun3,CHEN Qiang1,LI Peng1,LING Ling1,LIN Xiao-chen*,REN Shu-ping1   

  1. (1.Department of Toxicology,School of Public Health,Jilin University,Changchun 130021,China;2.Department of Nutrition and Food Hygiene,Jilin University,Changchun 130021;China;3. Department of Ophathmology,China-Japan Union Hospital,Jilin University,Changchun 130033,China)
  • Received:2007-04-19 Revised:1900-01-01 Online:2008-01-28 Published:2008-01-28
  • Contact: REN Shu-ping

摘要: 目的:探讨B段紫外线(UV-B)对豚鼠皮肤的损伤作用。方法:实验动物随机分为UV-B照 射组和未照射对照组,通过大体观察、组织切片及皮下组织中氧化损伤指标MDA、超氧阴离子和羟自由基的测定,探讨UV-B对豚鼠皮肤的损伤作用。结果:照射组豚鼠皮肤表皮红肿、脱屑;照射剂量达5.28J/cm2时,组织切片中可见整个表皮层增厚,内含排列紊乱的不典型细胞,层次不清,表面有角化过度和角化不全;棘细胞层明显肥厚。全层细胞体积均增大且具异型性,核大小不一,形态各异,染色深浅不匀。UV-B照射组血清和皮下组织中MDA和ROS含量均显著高于对照组(P<0.05)。结论:UV- B能够造成豚鼠皮肤的光老化并出现癌前病变。

关键词: 豚鼠, 自由基, 氧化损伤

Abstract: To explore the adverse effects of ultraviolet B(UV-B) on the skin of guinea pig.Methods Guinea  pig skin was irradiated with UV-B,the skinchanges in external appearance,pathology,and the contents of OH and O2- produced in the skin were determined to study the adverse effects of UV-B on the guinea pig skin.Results UV-B caused red swelling and desquamation of skin,with the increasing of the UV-B irradiation,the cells in stratum spinosum began to proliferate vigorously,the MDA and ROS contents in UVB radiation group were significantly higher than those in control group(P<0.05). Conclusion UV-B can cause injury to guinea pig skin and has the potential to produce skin cancer.

Key words: guinea pigs, free radicals, oxidative injury

中图分类号: 

  • R363.122