中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (34): 5461-5465.doi: 10.3969/j.issn.2095-4344.2014.34.009

• 药物控释材料 drug delivery materials • 上一篇    下一篇

温敏性壳聚糖止血膜的止血作用及体内降解吸收

尹 刚1,陈汇浩1,郭兴锋1,魏长征2,侯春林1   

  1. 1解放军第二军医大学附属长征医院骨科,上海市  2000032上海其胜生物制剂有限公司,上海市 200052
  • 修回日期:2014-06-23 出版日期:2014-08-20 发布日期:2014-08-20
  • 通讯作者: 侯春林,教授,博士生导师,解放军第二军医大学附属长征医院骨科,上海市 200003
  • 作者简介:尹刚,男,1979年生,安徽省巢湖市人,2014年解放军第二军医大学毕业,博士,主要从事创伤骨科、生物材料的研究。

Hemostasis and in vivo degradation of thermosensitive chitosan hemostatic film

Yin Gang1, Chen Hui-hao1, Guo Xing-feng1, Wei Chang-zheng2, Hou Chun-lin1   

  1. 1Department of Orthopedic Surgery, Changzheng Hospital, the Second Military Medical University of PLA, Shanghai 200003, China; 2Shanghai Qisheng Biological Preparation Co., Ltd., Shanghai 200052, China
  • Revised:2014-06-23 Online:2014-08-20 Published:2014-08-20
  • Contact: Hou Chun-lin, Professor, Doctoral supervisor, Department of Orthopedic Surgery, Changzheng Hospital, the Second Military Medical University of PLA, Shanghai 200003, China
  • About author:Yin Gang, M.D., Department of Orthopedic Surgery, Changzheng Hospital, the Second Military Medical University of PLA, Shanghai 200003, China

摘要:

背景:尽管温敏性壳聚糖是壳聚糖的一种,但其止血效果、组织相容性及体内代谢吸收情况还需要验证。

目的:探讨温敏性壳聚糖止血膜的止血作用、体内降解和组织相容性。
方法:取SD大鼠48只,随机均分为4组,同时进行两种实验:①制作肝脏创面出血模型,其中3组分别采用温敏性壳聚糖止血膜、纤维素止血棉和明胶海绵止血材料贴敷大鼠肝创面止血,以不做任何处理的为空白对照。记录出血时间及出血量。②在上述3组大鼠的股四头肌内分别再植入对应的止血材料,空白对照组不植入任何材料。术后1,2,3,4,6周取两处创面行大体观察,术后4周行苏木精-伊红染色和电镜观察。

结果与结论:温敏性壳聚糖组、纤维素组止血时间和出血量少于空白对照组、明胶海绵组(P < 0.05)。温敏性壳聚糖止血膜于术后6周完全降解,纤维素止血棉于术后3周完全降解,明胶海绵于术后2周完全降解。温敏性壳聚糖组肝小叶结构完整,肝细胞结构基本正常,肿胀轻,炎症细胞浸润程度轻,电镜显示整个肝细胞外形结构清楚,细胞核无破损,细胞器良好;肌肉纤维结构完整,炎症细胞浸润程度轻,电镜显示肌纤维走向整齐,肌细胞核形态正常,细胞器良好。可见温敏性壳聚糖止血膜具有较好的止血作用和组织相容性。


中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

关键词: 生物材料, 缓释材料, 温敏性壳聚糖, 药物控释材料, 纤维素, 明胶海绵, 降解, 组织相容性

Abstract:

BACKGROUND: The thermosensitive chitosan is a kind of chitosan, its hemostatic effect, tissue compatibility and in vivo absorption need further investigations.

OBJECTIVE: To investigate the hemostasis, in vivo degradation and tissue compatibility of thermosensitive chitosan hemostatic film.
METHODS: A total of 48 Sprague-Dawley rats were randomly divided into four groups, and carried out two experiments at the same time. (1) The incisions of the liver in three groups were covered with the thermosensitive chitosan hemostatic film, cellulose hemostatic cotton and gelatin sponge, respectively. Blank control group received no treatment. The bleeding time and bleeding amount were recorded. (2) The incisions of the quadriceps femoris muscle of rats in the above three groups were embedded with the same hemostatic materials respectively. Blank control group was not embedded. At 1, 2, 3, 4, 6 weeks, the incision tissues of the liver and the quadriceps femoris muscle were harvested for observation. After 4 weeks, the incisions were observed with hematoxylin- eosin staining and transmission electron microscopy.
RESULTS AND CONCLUSION: The bleeding time and bleeding amount of thermosensitive chitosan hemostatic film and cellulose hemostatic cotton groups were significantly lower than those of gelatin sponge and blank control groups (P < 0.05). After 6 weeks, the thermosensitive chitosan hemostatic film was absorbed completely. After 3 weeks, the cellulose hemostatic cotton was absorbed completely. After 2 weeks, the gelatin sponge was absorbed completely. The liver lobules of thermosensitive chitosan hemostatic film were complete, the liver cell were normal structure, showing light swelling and little inflammatory cell infiltration. Under transmission electron microscopy, the liver cells had integral structure, cell nucleus and organelles remained intact. The muscle fibers showed complete structure and little inflammatory cell infiltration. Under transmission electron microscopy, the muscle fibers ranked tidily, with integral cell nucleus and organelles. The thermosensitive chitosan hemostatic film has good hemostasis effect and tissue compatibility.

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

Key words: chitosan, cellulose, gelatin sponge, degradation

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