方法：采用经具核梭杆菌LPS刺激的单核细胞培养上清作用于体外培养的人牙髓细胞，通过OD值测定，观察单核细胞培养上清对人牙髓成纤维细胞碱性磷酸酶（ALP）活性的影响。
Methods:The culture supernatant of monocytes stimulated with Fn LPS was applied to human dental pulp cell in vitro, and activity of ALP in human dental pulp fibroblast was monitored by OD test.
目的研究体外培养的人牙髓干细胞的生物学特性。
Objective To study the biological characteristics of cultured human dental pulp stem cells in vitro.
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