摘要
目的：观察伸展作用后皮肤超微结构的变化。方法：取4只体重约20kg的猪为实验动物,分别对伸展作用侧及对照侧皮肤标本进行扫描和透射电镜观察。结果：扫描电镜观察伸展皮肤的胶原纤维自身卷曲状态明显减轻,多数纤维沿着伸展力的方向排列,纤维未见断裂表现。透射电镜见伸展作用后表皮细胞层次增加,间隙增宽,真皮层胶原纤维排列整齐紧密,成纤维细胞功能活跃,胶原纤维结构未受损害。结论：皮肤伸展术是一种有效、安全的方法。
The study was designed to investigate the ultramicrostructural changes of the stretched skin. Methods: On 4 Pigs, stretched skin was compared with non-stretched control skin from the opposite side of the animal. The specimens were observed with scanning electron microscopy(SEM) and transmission electron microscopy(TEM). Results: The collagen bundles became more aligned and compact. This alignment was along the direction of the loading force applied to the skin. The collagen fiber was normal. The epidermal cell layers were increase. The distant between cells became large.More active fibroblasts with increased rough endoplasmic reticulum' mitochodrion and intracellular pre collagen filaments were seen in stretched skin dermis. Conclusion: The skin stretching technique was a safe and useful technique in aiding the closure of large defects.
出处
《中国美容医学》
CAS
1999年第3期200-202,共3页
Chinese Journal of Aesthetic Medicine
关键词
皮肤伸展术
超微结构
扫描电镜
透射电镜
Skin stretching technique Ultramicrostructure Scanning electron microscopy(SEM) Transmission electron microscopy(TEM)
