Results: the active components extracted by alcohol strengthened the proliferation ability and ALP activity of cultured human periodontal ligament cells.
结果：补肾中药醇提活性成分对人牙周膜细胞增殖能力和ALP活性有增强作用。
But the lose of the activity of periodontal ligament cells and root replantation has influenced the successful rate of tooth replantation for a long time.
牙再植术的历史悠久，但是脱位牙根面部分牙周膜细胞活性丧失、牙根吸收，影响着牙再植术的成功率。
AIM: to examine the effect of endotoxin of prevotella intermedia and bacteroides fragilis on proliferation and ultrastructure of periodontal ligament cells in vitro.
目的：观察中间普氏菌和脆弱类杆菌的内毒素对人牙周膜细胞增殖和超微结构的影响。
Human periodontal ligament cells were cultured on the elastic bottom plate and stimulated by elastic stress using mechanical loading system for cultured cells in vitro.
人牙周膜细胞在弹性膜上体外培养，采用体外培养细胞加载系统加载弹性牵张力。
METHODS: Primary human periodontal ligament cells were obtained and passaged. Then the cells were stretched by dynamic mechanical strain unit with 1%, 10% and 20% strain at different time.
方法：通过原代和传代培养，获得性状稳定的人牙周膜细胞，使用动态机械应变细胞加载仪对细胞进行1%、10%和20%动态牵张应变加载。
Conclusions: Under the influence of ageing, proliferation ability of elderly peoples periodontal ligament cells was significantly decreased and was significantly different from that of young peoples.
结论：由于增龄的影响，老年人牙周膜细胞生长增殖功能明显降低。
Methods: Healthy human gingiva and periodontal ligament were acquired from patients, then gingival fibroblasts and periodontal cells were cultured in vitro.
方法：采集健康的牙龈组织和牙周膜，体外培养牙龈成纤维细胞和牙周膜成纤维细胞。
Results: Under the increased bite force, periodontal ligament width was enlarged and new bone was formed in alveolar the expression of IL-6 increased apparently in periodontal cells.
结果：咬合力增强引起牙周膜增宽、牙槽骨新骨形成。 牙周细胞中IL-6表达较正常咬合力时明显增强。
Objective to isolate and cultivate human periodontal ligament stem cells (PDLSC) and to investigate the feasibility of PDLSC in vitro differentiation into chondrogenic phenotype.
目的从成体人牙周组织中分离培养牙周韧带干细胞，研究其分化为软骨细胞的可行性。
Objective: To isolate and identify the periodontal ligament stem cells from human molars.
目的：建立免疫磁珠法体外分离纯化人牙周膜干细胞的方法。
In this study, we explored the potential of using autologous periodontal ligament stem cells (PDLSCs) to treat periodontal defects in a porcine model of periodontitis.
本研究中，我们尝试利用自体牙周膜干细胞治疗小猪牙周病模型上的牙周缺损。
In this study, we explored the potential of using autologous periodontal ligament stem cells (PDLSCs) to treat periodontal defects in a porcine model of periodontitis.
本研究中，我们尝试利用自体牙周膜干细胞治疗小猪牙周病模型上的牙周缺损。
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