Olenius M, Dalsgaard C J, Wickman M
Department of Plastic and Reconstructive Surgery, Karolinska Hospital, Stockholm, Sweden.
Plast Reconstr Surg. 1993 Feb;91(2):213-6. doi: 10.1097/00006534-199302000-00001.
In 20 patients subjected to breast reconstruction by means of tissue expansion, a skin biopsy was obtained at the vertex of the breast before and the day after expansion. Samples were incubated in [3H]thymidine, and the number of labeled cells were counted. A statistically significant rise in the number of labeled basal and suprabasal keratinocytes was seen after expansion. The findings suggest a net gain of tissue not only by stretching but also by formation of new tissue generated by tissue expansion.
在20例行组织扩张法乳房再造术的患者中，于扩张前及扩张后当日在乳房顶点取皮肤活检标本。将标本置于[3H]胸腺嘧啶核苷中孵育，然后计数标记细胞的数量。扩张后可见标记的基底和基底上层角质形成细胞数量有统计学意义的增加。这些发现提示，组织扩张不仅通过拉伸使组织净增加，还通过形成新组织来实现。
