欢迎来到天天文库
浏览记录
ID:55314827
大小:502.67 KB
页数:7页
时间:2020-05-14
《富血小板血纤蛋白的生物组成和功能.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、·448~国际口腔医学杂志第41卷4期2014年7月www.gjkqyxzz.ca富血小板血纤蛋白的生物组成和功能罗雯静赵静辉马珊珊孙千月郭天奇周延民吉林大学口腔医院种植科长春130021[摘要]富血小板血纤蛋白(PRF)制备简便,不需要加抗凝剂,无伦理道德争议及血液交叉感染。其立体三维结构使得PRF较富血小板血浆更坚实稳定。PRF为血管化的天然诱导物,其结构为免疫反应提供了天然支持,会影响上皮细胞和成纤维细胞的新陈代谢。其内的白细胞通过释放高质量分数的促炎因子白细胞介素一113、4、6V2及肿瘤坏
2、死因子和血管内皮生长因子,在抗感染、促组织愈合过程中起着重要的作用。PRF具有良好的骨诱导性,在即刻种植中将其用于辅助上颌窦提升,上颌窦骨密度和骨增量良好。PRF有利于骨髓问质干细胞的早期增殖和向成骨细胞的早期分化,明显促进人成骨细胞成骨相关有机基质分泌,促进成骨细胞早期成骨,抑制破骨细胞活化。本文就PRF的生物组成和功能,即诱导成骨、促软组织修复、促血管化和抗感染等研究进展作一综述。[关键词]富血小板血纤蛋白;细胞因子;组织再生;血纤蛋白支架;白细胞[中图分类号】Q51[文献标志码]AIdoil1
3、0.7518/~kq.2014.04.019Biologicalcompositionandfunctionofplatelet-richfibrinLuoWenjing,ZhaoJinghui,MaShanshan,SunQianyue,GuoTianqi,ZhouYanmin.(Dept.ofImplantation,HospitalofStomatology,JilinUniversity,Changchun130021,China)lAbstract】Platelet—richfibrin(
4、PRF)hasmanyadvantages,suchaseasypreparationwithnoanticoagulant,noethicalcontroversy,andnobloodcross—infection.Moreover,itsthree—dimensionalstructuremakesPRFmoresolidandstablethanplatelet—richplasma.PRFservesasanaturalinducerofangiogenesis.anditsstructu
5、reprovidesnaturalsupportforimmuneresponses.PRFcaninfluencethemetabolismofepithelialcellsandfibroblasts.LeukocyteswithinPRFhaveimportantfunctionsinresistancetoinfectionandpromotionofthetissuehealingprocessbyreleasinghighmassfractionsofpro—inflammatorycy
6、tokines,includinginterleukin一1B,4,6,tumornecrosisfactorU,andvascularendothelialgrowthfactor.PRFexhibitsgoodpropertiesofosteoinduction,whichisusedtoassistmaxillarysinusliftsurgeryinimmediateimplantation,andhasbeneficialeffectsonbonemineraldensityandbone
7、increment.PRFisconducivetotheproliferationofbonemarrowmesenchymalstemcellsanddifferentiationintoosteoblastsduringtheearlyphase.PRFcaninducehumanosteoblaststosecreteosteogenesis—relatedorganicmatrix,promoteboneformationinducedbyosteoblasts,andinhibitost
8、eoclastactivation.ThispaperreviewsthecytokinecompositionandmacrobiologicalfunctionsofPRF,suchasosteoinduction,softtissuerepairpromotion,angiogenesis,andanti—infectionactivities.1KeywordsJplatelet—richfibrin;cytokine;tissueregeneration;f
此文档下载收益归作者所有