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采用光镜、组织特殊染色等方法，对移居格尔木地区１５年以上汉族和世居哈萨克族，１６～５０岁以上不同年龄组、健康、无皮肤疾患男女的暴露部和非暴露部皮肤组织进行对比观察。结果提示：①移居汉族和哈萨克族暴露部皮肤的表皮角质层增厚呈不全角化过长；②黑色素染色，移居汉族较哈萨克族，暴露部较非暴露部为著；③Ｖ．Ｇ．Ｗｅｉｇｅｒｔ．Ｆｏｏｔ和ＰＡＳ染色，显示真皮层内胶原纤维、弹性纤维和网状纤维增生变粗；④两民族暴露部和非暴露部真皮层内小血管内皮细胞增生，管壁均增厚，管腔变窄。
By means of light microscopy and tissue special staining, we compared the exposed and non-exposed parts of the exposed and non-exposed parts of the male and female Kazakh who lived in the Golmud region for more than 15 years with different age groups of 16 ~ 50 years and healthy, without skin diseases Observed. The results suggest that: ① the stratum corneum of the skin of the exposed part of the Han and Kazak ethnic groups is thicker and hyperkeratosis is not hyperkeratosis; ② melanin staining, migrate to the Han ethnic group than the Kazakh population, the exposed part is more than the non-exposed part; ③V. G. Weigert. Foot and PAS staining showed hyperplasia and thickening of collagen fibers, elastic fibers and reticular fibers in the dermis. (4) Small vascular endothelial cells proliferated in the dermis of both ethnic and non-exposed parts of the dermis, .