Toyoshima H
Nihon Hifuka Gakkai Zasshi. 1989 Jan;99(1):1-7.
Morphological changes in the epidermis caused by aging and sun exposure were studied by light microscopy and micrometric techniques. The following findings were obtained. 1. Corneocytes of the sun exposed skin of young healthy subjects were smaller than those of aged persons. 2. The epidermal rete ridges of the sun-exposed skin of old subjects disappeared and flattened. 3. The thinning and flattening of the epidermis of old subjects were more prominent in sun exposed skin than in sun protected skin. These data suggest that sun exposure accelerates some morphological changes of epidermis considered due to aging.
通过光学显微镜和测微技术研究了衰老和阳光照射引起的表皮形态变化。得到了以下结果。1. 年轻健康受试者暴露于阳光下的皮肤角质形成细胞比老年人的小。2. 老年受试者暴露于阳光下的皮肤表皮 rete 嵴消失并变平。3. 老年受试者表皮的变薄和变平在暴露于阳光下的皮肤中比在受阳光保护的皮肤中更明显。这些数据表明，阳光照射加速了一些被认为是由衰老引起的表皮形态变化。
