中国组织工程研究 ›› 2021, Vol. 25 ›› Issue (22): 3534-3539.doi: 10.3969/j.issn.2095-4344.3189

• 材料生物相容性 material biocompatibility • 上一篇    下一篇

两种离心程序制备的富血小板纤维蛋白结构分析

毕庆伟1,刘承璞1,李  岩1,赵雯雯1,韩  梅2   

  1. 1黑龙江省口腔病防治院,黑龙江省哈尔滨市  150001;2黑龙江省护理高等专科学校,黑龙江省哈尔滨市   150002
  • 收稿日期:2020-07-23 修回日期:2020-07-25 接受日期:2020-09-15 出版日期:2021-08-08 发布日期:2021-01-20
  • 通讯作者: 李岩,主任医师,黑龙江省口腔病防治院,黑龙江省哈尔滨市 150001
  • 作者简介:毕庆伟,男,1982年生,黑龙江省哈尔滨市人,汉族,硕士,副主任医师,主要从事口腔种植的临床及基础研究。
  • 基金资助:
    黑龙江省卫健委科研课题(2017552),项目负责人:毕庆伟;黑龙江省卫健委科研课题(2018033),项目负责人:赵雯雯

Structure analysis of platelet-rich fibrin derived from two centrifugation procedures

Bi Qingwei1, Liu Chengpu1, Li Yan1, Zhao Wenwen1, Han Mei2   

  1. 1Heilongjiang Stomatological Disease Center, Harbin 150001, Heilongjiang Province, China; 2Heilongjiang Nursing College, Harbin 150002, Heilongjiang Province, China
  • Received:2020-07-23 Revised:2020-07-25 Accepted:2020-09-15 Online:2021-08-08 Published:2021-01-20
  • Contact: Li Yan, Chief Physician, Heilongjiang Stomatological Disease Center, Harbin 150001, Heilongjiang Province, China
  • About author:Bi Qingwei, Master, Associate chief physician, Heilongjiang Stomatological Disease Center, Harbin 150001, Heilongjiang Province, China
  • Supported by:
    Scientific research project of Heilongjiang Health Commission, No. 2017552 (to BQW); the Scientific Research Project of Heilongjiang Health Commission, No. 2018033 (to ZWW)

摘要:

文题释义:
改良的富血小板纤维蛋白:富血小板纤维蛋白首先由法国CHOUKROUN教授等在2000年提出,其含有血液的主要成分,含有约97%的血小板和大于50%的白细胞,并集中在由纤维蛋白组成的一个特定的三维分布中。2014年GHANAATI等进行程序改良制造出新的富血小板纤维蛋白,在结构上有别于传统富血小板纤维蛋白。
富血小板纤维蛋白离心制造机:专门用于离心富血小板纤维蛋白的机器,离心力和离心速度的不同导致制备富血小板纤维蛋白的结构也不相同,专业的离心机是经过研究开发而出,研究结果可信度高。

背景:富血小板纤维蛋白因其特性已在临床中广泛应用,但不同离心程序制造出的纤维蛋白结构及成分会有不同,进而影响临床效果。
目的:比较两种特定离心程序制备的富血小板纤维蛋白的组织特点。
方法:采集40例自愿捐献者的静脉血,随机分2组,每组20例,一组通过低速离心(1 500 r/min离心14 min)程序获得改良富血小板纤维蛋白,另一组通过中速离心(3 000 r/min离心10 min)程序获得传统白细胞富血小板纤维蛋白。通过苏木精-伊红染色、免疫组化技术、扫描电镜及透射电镜观察两组纤维蛋白中的白细胞、纤维蛋白基质分布情况及差异。
结果与结论:①苏木精-伊红染色:两组纤维蛋白均含有较多白细胞,多集中在中间层并偏向于红细胞端层,凝胶层大部分为纤维蛋白基质,其中改良富血小板纤维蛋白中的白细胞在凝胶层有一些散在均匀分布;②免疫组化:两组纤维蛋白在中间层区域含有大量白细胞,包括单核细胞和中性粒细胞,改良富血小板纤维蛋白中的中性粒细胞比例大于白细胞富血小板纤维蛋白(P﹤0.05),两组单核细胞比例比较差异无显著性意义(P > 0.05);③扫描电镜:两组纤维蛋白的白细胞分布广泛,其中改良富血小板纤维蛋白中纤维蛋白基质空间内白细胞和血小板数量稍多,纤维基质条索排列略紧密;④透射电镜:两组纤维蛋白中间层聚集较多的中性粒细胞、单核细胞,血小板密集并含量较多,纤维蛋白基质排列致密,其中改良富血小板纤维蛋白中的纤维基质排列略密集,白细胞含量及血小板稍多;⑤结果表明:因含有的白细胞数量差别,改良富血小板纤维蛋白可能比白细胞富血小板纤维蛋白在促进组织愈合中发挥更积极的作用。
https://orcid.org/0000-0001-5501-650X (毕庆伟)

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

关键词: 材料, 富血小板纤维蛋白, 改良, 离心, 组织工程, 炎症, 中性粒细胞, 单核细胞, 血小板

Abstract: BACKGROUND: Platelet-rich fibrin has been widely used in clinic because of its characteristics, but the structure and composition of fibrin produced by different centrifugation procedures will be different, which will affect the clinical effect.
OBJECTIVE: To compare the histological characteristics of platelet-rich fibrin prepared by the different centrifugation procedures.
METHODS: Venous blood samples from 40 voluntary patients were divided into two groups (n=20). In group A, modified platelet-rich fibrin was obtained by low-speed centrifugation (1 500 r/min centrifugation for 14 minutes). In group B, traditional platelet-rich fibrin was obtained by medium-speed centrifugation 
(3 000 r/min for 10 minutes). Hematoxylin-eosin staining, immunohistochemistry, scanning electron microscopy, and transmission electron microscope were used to analyze the difference of leukocytes and fibrin matrix in two groups of platelet-rich fibrin.
RESULTS AND CONCLUSION: (1) Hematoxylin-eosin staining: Both groups contained more leucocytes, mostly concentrated in the middle layer and biased towards the end layer of erythrocytes. Gel layer was mainly composed of fibrin matrix, and the leucocytes were coagulated in the advanced platelet-rich fibrin. The glue layer was scattered and evenly distributed. (2) Immunohistochemistry: The two groups contained a large number of leucocytes in the middle layer, including monocytes and neutrophils. The proportion of neutrophils in the modified platelet-rich fibrin was greater than that of the leukocyte-rich platelet fibers (P < 0.05). There was no significant difference in the ratio of monocytes between the two groups (P > 0.05). (3) Scanning electron microscopy: The leucocytes of the two groups were distributed slightly widely. The numbers of leucocytes and platelet in the advanced platelet-rich fibrin were slightly higher than those in leucocyte- and platelet-rich fibrin. The fiber matrix cords were slightly tightly arranged in the modified platelet-rich fibrin. (4) Transmission electron microscopy: The two groups of intermediate layers gathered a large number of platelets and many neutrophils and monocytes. The protein matrix was densely arranged, among which the fiber matrix in the modified platelet-rich fibrin was slightly denser than that in leucocyte- and platelet-rich fibrin. (5) The results showed that the modified platelet-rich fibrin may be better than leucocyte- and platelet-rich fibrin due to the difference in the number of leucocytes. The advanced platelet-rich fibrin may play a more active role in promoting tissue healing.

Key words: materials, platelet-rich fibrin, improvement, centrifugation, tissue engineering, inflammation, neutrophils, monocytes, platelets

中图分类号: