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find Author "于宁" 3 results
  • AN EXPERIMENTAL STUDY OF RABBITS’ WOUND REPAIR BY AMNIOTIC CARRIER COMPLEX MEMBRANECONTAINING bFGF AND VITAMIN C AND LOADED WITH BMSCs

    Objective The amniotic carrier complex membrane, which contains bFGF and vitamin C (VitC) and is loaded with BMSCs, is planted into the deeply-partial wounds of rabbits. To explore its influence on the epidermis renascence and regenerating speed in the process of the dermis restore. Methods BMSCs were isolated from the marrows of 24 healthy3-month-old New Zealand rabbits, male or female, weighing 1.0-1.5 kg. The BMSCs were cultured in vitro and purified, and then amniotic carrier complex membrane was prepared, whose size was 4.52 cm2. Three deep-partial wounds, with the area of about 3.14 cm2, were produced on the back of each rabbit. All the wounds were randomly divided into 3 groups: group A, group B and group C. Group A was the experimental group in which the amniotic carrier complex membrane was planted, including 1 ml BMSCs, 10 mL bFGF (0.2 mg/L) and 10 mL VitC (0.02 g/L). In group B, the amniotic carrier complex membrane was planted, including only 1 mL BMSCs. In group C, the amniotic carrier complex membrane alone was planted. After the operation, general observation was conducted. At postoperative 7, 14 and 21 days, respectively, the observation by HE, Masson, Van Giesonr staining and immunohistochemical staining of collagen type I was performed. The ink perfusion method was performed to evaluate the velocity and the qual ity of the wound heal ing after the transplantation. Results All the wounds obtained good heal ing. At 14 days after the operation, the ratio of wound heal ing was 60%, 41% and 23% in groups A, B and C, respectively. At 21 days after the operation, the the ratio of wound heal ing was 99%, 90% and 81% in groups A, B and C, respectively. There were significant differences between any two groups (P lt; 0.05). The depth of the newborn dermis, the number of the active collagen type I mascul ine cells and the number of the blood vessels in group A were better and more than in group B. And those in group B were better and more than in group C. At the exterior area of the newborn dermis, there was lots of regenerated epidermis from the peripheral normal skin, which in group A was better than in group B, and in group B was better than in group C. onclusion The amniotic carrier complex membrane transplanted to deep-partial wounds, which is appended withBMSCs, bFGF and VitC, can accelerate repair and reconstruction of the dermis. There has an optimal time of the renascence and regeneration of the epidermis in the process of dermis repair.

    Release date:2016-09-01 09:19 Export PDF Favorites Scan
  • 眼底有色素和无色素沉积患者并存的 视网膜色素变性一家系

    Release date:2016-09-02 06:03 Export PDF Favorites Scan
  • 视网膜大动脉瘤合并视网膜分支静脉阻塞一例

    Release date:2016-09-02 06:05 Export PDF Favorites Scan
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