创伤癒合和组织再生的研究Ⅷ.机体对于保存的皮肤移植在创伤中的反应

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1.本文报告了应用在酒精或甲醛液中保存的白鼠皮肤,移植于白鼠的皮肤全切除创伤中,来观察机体对于创伤中移植片的反应,以及移植片对创伤的作用。2.在移植后三天的标本中,可观察到机体皮肤表皮伸入移植片中生长。创伤中的机体结缔组织,也开始向移植片组织中生长,发生联系。但在移植片和机体组织间仍大部分保留着间隙,有少数白血球游离其间。3.在移植后一周,机体表皮继续伸入移植片中生长。移植片和机体组织间的间隙已消失,代之以疤痕纤维组织,即机体组织和移植片组织打成一片。4.在移植手术后二周,机体组织不论表皮或结缔组织更深入的在移植片组织中生长。移植片和机体组织混淆一起,无分彼此。如果没有其它指针的帮助,简直无法将它们原来的界限划分开来。5.移植后三周的标本,移植片表面开始糜烂,创伤四周机体皮肤也开始在移植片下向创伤中缩进。从组织学检查,机体表皮不再继续伸进移植片中迁移生长,表现生长停滞现象。但移植片下部和机体组织的联系仍属完好,纤维组织增多,微血管分布也很丰富。在移植片具皮层中部往往构成白血球防御带,将真皮层分隔成上下两部。上部分即为表面糜烂部分,下部分即为有丰富的机体组织生长进来的真皮部分。6.从上述这些结果表明,机体组织包括表皮和结缔组织都能伸入移植片组织中生长,即移植片不引起机体的异物反应而被排除。机体组织的在移植片中生长,将移植片暂时作为自身构成的一部分而覆盖着创伤(约三周左右)。这些事实,提供了临床上在大面积创伤中使用保存皮肤的可能性。 1. The paper reports the application of the skin of rats preserved in alcohol or formaldehyde solution and transplanted in the total skin excision of the white rat to observe the body’s response to the graft in the wound and the effect of the graft on the wound. In the specimens three days after transplantation, the skin epidermis of the body can be observed to grow into the graft. Trauma in the body connective tissue, also began to grow in the graft tissue, a link. However, most of the interstitial space remains between the graft and the body tissue with a few leukocytes free. One week after transplantation, the body epidermis continues to grow into the graft. The gap between the graft and body tissue has disappeared, replaced by scar tissue, that is, the body tissue and graft tissue into a slice. 4. Two weeks after transplantation, body tissue grows deeper in the graft tissue, regardless of the epidermis or connective tissue. Graft and body tissue confused, without distinction between each other. Without the help of other pointers, they simply can not be separated from their original boundaries. Three weeks after transplantation, the surface of the graft began to erode, and the skin around the wound began to retract into the trauma under the graft. From histological examination, the body epidermis no longer continue to migrate into the graft growth, the performance of stagnant growth. However, the relationship between the lower part of the graft and the body tissue is still intact, fibrous tissue increased, and microvascular distribution was also very rich. In the middle of the transplanted cortical tendons constitute the white blood cell defensive zone, separating the dermis into two parts. The upper part is the surface of the erosion part, the lower part is rich in body tissue growth in the part of the leather. 6. From the above results, it is shown that the body tissues, including the epidermis and the connective tissue, can all grow into the transplanted tissue, that is, the transplanted pieces are excluded from the body’s foreign body reaction. Body tissue grows in a graft that temporarily covers the graft (about three weeks or so) as part of its own composition. These facts provide the possibility of clinically using a preserved skin in a large area of ​​trauma.
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