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Zhonghua Shao Shang Za Zhi ; 19(6): 355-7, 2003 Dec.
Article in Chinese | MEDLINE | ID: mdl-14761646

ABSTRACT

OBJECTIVE: To observe the injury on micro-skin induced by a self designed micro-skin machine. METHODS: Micro-skin was produced either with the machine or by hand. Cells at the edge of micro-skin were observed by transmission electron microscope. succinic dehydrogenase activity in supernatant of cultivated cells was analyzed, and the cell proliferation of micro-skin was assessed by (3)H-TdR. Twenty patients were enrolled in the study for the observation of the wound healing time between the two groups of micro-skin after being grafted. RESULTS: Transmission electron microscope examination revealed that the cellular injury at the edge of the micro-skin in machine-made group was mild compared with that in man-made group. (3)H-TdR rate was elevated but the activity of succinic dehydrogenase in the supernatant of cultured cells decreased in supernatant of cultured cells of machine produced micro-skin. Wound healing time was shortened in machine made group. (P < 0.05). CONCLUSION: The cellular injury at the edge of micro-skin in the machine made group was mild when compared with that in the man-made group with cell proliferation accelerated and wound healing time shortened.


Subject(s)
Burns/surgery , Skin Transplantation/methods , Cell Division , Epithelium/pathology , Humans , Microscopy, Electron , Skin/ultrastructure , Wound Healing
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