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釉基质蛋白

釉基质蛋白的相关文献在1999年到2020年内共计103篇,主要集中在口腔科学、基础医学、生物工程学(生物技术) 等领域,其中期刊论文99篇、会议论文2篇、专利文献130426篇;相关期刊35种,包括广东牙病防治、国际口腔医学杂志、口腔颌面外科杂志等; 相关会议1种,包括中华口腔医学会第14次全国口腔医学学术会议等;釉基质蛋白的相关文献由209位作者贡献,包括束蓉、吴织芬、万玲等。

釉基质蛋白—发文量

期刊论文>

论文:99 占比:0.08%

会议论文>

论文:2 占比:0.00%

专利文献>

论文:130426 占比:99.92%

总计:130527篇

釉基质蛋白—发文趋势图

釉基质蛋白

-研究学者

  • 束蓉
  • 吴织芬
  • 万玲
  • 宋爱梅
  • 张秀丽
  • 刘兰宁
  • 宋忠臣
  • 王浈
  • 金岩
  • 刘宏伟
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 杨宇轩; 张海霞; 王爽
    • 摘要: 牙周组织缺损的修复是牙周治疗的一大难题,目前釉基质蛋白被广泛用于牙周组织再生治疗,并取得了良好的治疗效果.釉原蛋白是釉基质蛋白的主要成分,在牙周组织再生中发挥着多种生物学作用,调节牙周组织细胞的生物学行为,进而影响牙周组织再生的过程.目前对于釉原蛋白引起牙周组织再生的生物学机制仍不清楚,其作用的信号通路仍有待研究.本文将从调节细胞的黏附、迁移、增殖、分化等方面,论述釉原蛋白在牙周组织再生中的作用,探讨其可能的作用机制.
    • 梁杰; 周倜; 崔军; 许胜; 徐欣
    • 摘要: 目的:观察壳聚糖/β-甘油磷酸钠(CS/β-GP,chitosan/β-glycerophosphate salt)温敏凝胶复合膜及其负载釉基质蛋白(EMPs,enamel matrix proteins)体内引导骨再生的生物特性.方法:体外合成CS/β-GP温敏凝胶复合膜并负载EMPs.10只健康成年雄性Wistar大鼠随机分为A、B两组,分别为实验1个月和2个月组.大鼠颅骨中线两侧制备直径5mm的极量骨缺损(critical size defect,CSD);左侧为实验侧,覆盖CS/β-GP(1.0g)复合膜负载EMPs,右侧覆盖单纯CS/β-GP复合膜为对照侧.通过大体观察、X线新生骨密度测量、HE染色等方法比较两组复合膜修复骨缺损的情况.结果:测量1个月、2个月双侧骨密度百分比,差异具有统计学意义(P<0.05);HE染色发现,术后1个月双侧均有少量新骨生成;术后2个月,实验侧内的新骨生成增加且更致密、 趋于成熟.结论:该种类CS/β-GP复合膜具有引导骨再生的特性,负载生物活性因子后能明显加速骨愈合.
    • 朱习华; 吴倩雯; 黄慧
    • 摘要: BACKGROUND:Various surface modification techniques have been used to improve the bioactivity of titaniumimplant in vivo. OBJECTIVE:To investigate the effects of enamel matrix proteins (EMPs) on the growth of apatite coatings on dual thermo-etching treated pure titanium. METHODS:EMPs were extracted from porcine tooth germs and then were identified. Dual thermo-etching was applied to treat titanium samples fol owing polished, and then immersed in a blank simulated body fluid supersaturated calcification solution (control group) or supersaturated calcification solution containing different concentrations of EMPs for 7 days. The morphology of samples was observed using scanning electron microscope, and element components and crystal structures of the apatite coatings were analyzed by energy dispersive spectrometer and X-ray diffraction. RESULTS AND METHODS:After double-etching, a pit-like rough surface was observed on the titanium plate. After 7-day mineralization, in the control group, no overt calcium-phosphate deposits were found on the titanium surface;however, in the experimental groups, there were calcium-phosphate deposits, whose quantity and morphology changed with increasing concentrations. Energy dispersive spectrometer showed that the main element components of the mineralized coating included calcium, phosphorus, oxygen and carbon, and the calcium-phosphate ratio ranged from 1.32 to 1.41. The apatite coatings were proved to be carbonate hydroxyapatite by X-ray diffraction. To conclude, EMPs promote apatited deposition on pure titanium surfaces in a concentration-dependent manner.%背景:为提高钛种植体植入后的生物活性,常采用各种表面改性技术。目的:研究釉基质蛋白对双重热酸蚀纯钛表面仿生矿化沉积磷灰石层的影响。方法:提取猪未萌恒牙胚表面的釉基质蛋白并进行验证,纯钛片经抛光清洗后进行双重热酸蚀处理,然后放入含不同浓度釉基质蛋白的饱和矿化液中矿化7 d,对照组为不含釉基质蛋白的钙磷过饱和液。扫描电镜观察试件表面形貌,X射线能谱及X射线衍射分析涂层的元素成分及晶相结构。结果与结论:经双重酸蚀处理后的钛片表面形成规则凹坑状的粗糙表面,经过7d的矿化实验后,不添加釉基质蛋白的对照组试件上未见明显矿化涂层的形成。加入釉基质蛋白的实验组试件表面可形成矿化涂层,且随釉基质蛋白浓度的增加,矿化涂层的量及形态发生改变。能谱分析结果显示:矿化涂层中的主要元素为钙、磷、碳和氧,钙磷摩尔比在1.32-1.41之间。X射线衍射结果显示纯钛试件表面的沉积物为碳羟基磷灰石。提示釉基质蛋白可以促进双重酸蚀处理后的纯钛表面更快地生成磷灰石涂层。釉基质蛋白对纯钛表面磷灰石涂层的影响呈浓度相关性。
    • 朱习华1; 吴倩雯2; 黄慧3
    • 摘要: 背景:为提高钛种植体植入后的生物活性,常采用各种表面改性技术。目的:研究釉基质蛋白对双重热酸蚀纯钛表面仿生矿化沉积磷灰石层的影响。方法:提取猪未萌恒牙胚表面的釉基质蛋白并进行验证,纯钛片经抛光清洗后进行双重热酸蚀处理,然后放入含不同浓度釉基质蛋白的饱和矿化液中矿化7 d,对照组为不含釉基质蛋白的钙磷过饱和液。扫描电镜观察试件表面形貌,X射线能谱及X射线衍射分析涂层的元素成分及晶相结构。结果与结论:经双重酸蚀处理后的钛片表面形成规则凹坑状的粗糙表面,经过7 d的矿化实验后,不添加釉基质蛋白的对照组试件上未见明显矿化涂层的形成。加入釉基质蛋白的实验组试件表面可形成矿化涂层,且随釉基质蛋白浓度的增加,矿化涂层的量及形态发生改变。能谱分析结果显示:矿化涂层中的主要元素为钙、磷、碳和氧,钙磷摩尔比在1.32-1.41之间。X射线衍射结果显示纯钛试件表面的沉积物为碳羟基磷灰石。提示釉基质蛋白可以促进双重酸蚀处理后的纯钛表面更快地生成磷灰石涂层。釉基质蛋白对纯钛表面磷灰石涂层的影响呈浓度相关性。
    • 陆嘉玲; 束蓉
    • 摘要: It has been widely proved that enamel matrix protein (EMP) can enhance periodontal regeneration. Recently, the anti⁃in⁃flammatory effect of EMP has also been discovered in many relevant studies. The article reviewed the current research process of the an⁃ti⁃inflammatory activity of EMP on several periodontal cells.%釉基质蛋白(enamel matrix protein,EMP)促进牙周组织再生的作用已得到大量研究证实。近来,随着EMP的研究进展,其抗炎作用也逐渐被发现。本文就EMP对多种牙周相关细胞的抗炎作用作一综述。
    • 温玉洁; 冯馨仪; 葛颂
    • 摘要: 釉基质蛋白是在牙胚发育时期牙釉质中的一系列釉质特异性蛋白,具有促进牙周组织再生和生物矿化以及骨诱导等生物学活性,并对促进血管及第三期牙本质的形成等方面有一定的作用。本文就釉基质蛋白对牙周和相关组织的作用及在口腔临床应用方面的研究进展作一综述。
    • 廖蔚文; 宋忠臣; 束蓉
    • 摘要: Chronic periodontitis is a kind of chronic inflammatory disease characterized by periodontal tissue damage. The ultimate therapeutic aim of periodontal disease is to obtain periodontal tissue regeneration. The local inflammatory microenvironment caused by periodontal disease not only leads to periodontal tissue damage,but also affects the process of periodontal regeneration. For example,it can affect the proliferation and differentiation of periodontal ligament stem cells and stifle the function of growth factors. This review dis-cussed the effects of the inflammatory microenvironment on the regeneration of periodontal tissue.%慢性牙周炎是一种以牙周组织破坏为特征的慢性炎症性疾病。牙周病的最终治疗目的是牙周组织再生。而牙周炎时形成的局部炎症微环境,不仅造成牙周组织的破坏,而且会影响牙周组织再生过程,比如影响牙周膜干细胞的增殖分化以及生长因子的作用等。本文就炎症微环境对牙周组织再生的影响作一综述。
    • 黄乐; 华咏梅
    • 摘要: 目的:通过配制不同浓度的釉基质蛋白(enamel matrix proteins,EMPs)培养液,体外培养SD大鼠脂肪源性干细胞(adipose-derived stem cells, ADSCs),初步探究EMPs对ADSCs体外增殖活性及成骨分化能力的影响。方法:酶消化法获得大鼠脂肪间充质细胞,通过流式细胞仪技术分离、筛选干细胞,多向诱导分化对所得细胞进行鉴定;乙酸法制备EMPs干粉并通过蛋白免疫印记技术鉴定其成分,配制不同浓度的诱导液以备用;采用MTT法检测EMPs对ADSCs增殖活性的影响,并用实时荧光定量PCR及蛋白免疫印迹的方法检测EMPs诱导ADSCs成骨分化标志物的mRNA及蛋白表达变化情况。结果:釉基质蛋白(EMPs)对大鼠脂肪源性干细胞(ADSCs)的增殖具有明显的促进作用(P<0.05),并呈现剂量和时间依赖性; EMPs培养ADSCs 14 d后,成骨分化标志物Runx-2、Osteocalcin(OCN)、Collagen (Col-I)在mRNA和蛋白水平表达均增加,并且与EMPs成正比(P<0.05)。结论:釉基质蛋白可作为一种成骨诱导剂,能有效增强大鼠脂肪源性干细胞体外增殖活性并诱导其成骨分化。%Objective: This study aimed to explore the impact of enamel matrix proteins (EMPs) on proliferation activity and osteogenic differentiation capacity of SD rat adipose-derived stem cells in vitro. Methods:Adipose-derived stem cells (ADSCs) were isolated from subcutaneous fat pads of healthy male SD rats aged 4 weeks by enzyme digestion method . Stem cells are separated and identified by flow cytometry technology. EMPs were extracted from tooth germs of heathy male pigs aged 4-6 months. SDS-PAGE electrophoresis technique was used to identify its characteristics, and frozen-dried powder were prepared for subsequent experiments. Effects of EMPs on cell proliferation were assessed by MTT assay. Ef-fects of EMPs on osteogenic differentiation of rat ADSCs were analyzed by Q-PCR and Western-Blot technique.Osteogenic differentiation markers of Osteocalcin (OCN), Runx-2, Collagen I (Col-I) were detected. Results: MTT assay showed that EMPs could enhance rat ADSC proliferation in a dose-dependent and time-dependent manner(P<0.05). Results of Q-PCR and Western-blot technique indicated that EMPs promoted expressions of Runx-2, Col-I and OCN at the mRNA level and protein level without osteo-induction medium (P<0.05). Conclusion: Enamel matrix proteins may be used as an osteoin-ductive agent, due its enhancing effect on adipose-derived stem cells proliferation and osteogenic differentiation.
    • 李昕怡; 董伟
    • 摘要: 釉基质蛋白(EMP)可促进牙周膜细胞(PDLC)的增殖和多向分化能力。在EMP的作用下,PDLC中与合成细胞外基质功能相关的基因表达提高,PDLC的矿化和碱性磷酸酶(AKP)活性提高。EMP可促进骨髓基质干细胞(BMSC)成骨向分化,上调其成骨相关基因的表达,BMSC中的AKP活性提高。EMP通过上调连接蛋白-43和神经钙黏着蛋白等细胞间交流黏附因子增强成骨细胞分化。EMP可促进未成熟的成骨细胞聚集,这种聚集对连接蛋白-43和神经钙黏着蛋白上调有重要的作用,进一步提高了成骨细胞的分化和矿化活性。EMP可促进牙骨质形成,促进上皮细胞的增殖、活性和迁移。明确EMP的作用机制并利用机制调控产物,可为牙周组织缺损的临床治疗提供新的依据。%The proliferation and multi-directional differentiation ability of periodontal ligament cells(PDLC) can be promoted by enamel matrix proteins(EMP) and by the expression of genes related to the synthesis of extracellular matrix, mineralization of PDLC, and the activity of alkaline phosphatase(AKP). Similarly, the osteogenic differentiation, up regulation of the gene expression, and AKP activity of bone marrow mesenchymal stem cells can also be improved. Adhesion factors, such as connexin-43 and neural cadherin, could be upregulated by EMP to enhance the differentiation of osteoblasts. In addition, the aggregation of immature osteoblasts can be promoted by EMP, which plays an important role in the upregulation of connexin-43 and neural cadherin, and further increases the differentiation and mineralization of osteoblasts. Moreover, the formation of cementum and proliferation, activity, and migration of epithelial cells can also be improved by EMP. Results provide new theoretical basis for the clinical treatment of periodontal tissue defectsby discovering the mechanisms underlying EMP’s activity and the regulation of its products.
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