Kawai M, Imokawa G, Mizoguchi M
Nihon Hifuka Gakkai Zasshi. 1989 Aug;99(9):999-1006.
In order to clarify the properties of facial skin, we measured corneocyte size and stratum corneum turnover rate on the face of healthy female volunteers in relation to age and compared the data with those from the flexor surface of the forearm. The corneocyte size on the face was found to be significantly smaller and the percentage of nucleated corneocytes was distinctly higher than those on the forearm. Stratum corneum turnover rate on the face was also approximately two times faster than on the forearm. The corneocyte size increased with aging on the forearm, but not on the face. Additionally, turnover rate decreased with aging on the forearm, but not on the face. These findings suggest that the facial skin is apparently influenced by some exogenous or endogenous factors which seem to overcome the influence of intrinsic aging effects.
为了阐明面部皮肤的特性，我们测量了健康女性志愿者面部角质形成细胞的大小和角质层更新率，并将数据与前臂屈侧的数据进行了比较，以研究其与年龄的关系。结果发现，面部角质形成细胞的大小明显小于前臂，有核角质形成细胞的百分比明显高于前臂。面部角质层的更新率也比前臂快约两倍。前臂上的角质形成细胞大小随年龄增长而增加，但面部没有。此外，前臂的角质层更新率随年龄增长而降低，但面部没有。这些发现表明，面部皮肤显然受到一些外源性或内源性因素的影响，这些因素似乎克服了内在衰老效应的影响。
