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  • Title: [Effects of total flavonoids from Rhizoma Drynariae medicated serum on proliferation, differentiation, cell cycle and apoptosis of osteoblasts in vitro].
    Author: Zhang J, Li HP, Yang PL, Liu YH, Yang BH.
    Journal: Zhong Yao Cai; 2009 Jul; 32(7):1090-3. PubMed ID: 19873738.
    Abstract:
    OBJECTIVE: To observe the effects of total flavonoids from Rhizoma Drynariae medicated serum on cell proliferation, differentiation, cell cycle and apoptosis of rats' osteoblasts cultured in vitro. METHODS: The osteoblasts from cranium of newborn SD rats were cultured by collagenase method. MTT, PNPP, PI and Annexin V/PI methods were used to observe the proliferation, activity of alkaline phosphatase (ALP), every stage cells in the cell cycle, and the ratio of apoptosis cells by different concentrations of total flavonoids from Rhizoma Drynariae medicated serum at different time points. RESULTS: Different concentrations of total flavonoids from Rhizoma Drynariae medicated serum could significantly enhance the cell proliferation rate and ALP activity (P < 0.05), more cells in S stage and less cells apoptosised than that of the untreated osteoblasts (P < 0.05). CONCLUSION: Total flavonoids from Rhizoma Drynariae medicated serum could promote the proliferation, differentiation, increase S stage cells, and reduce the ratio of apoptosis cells, which reveals that they have anti-osteoporosis activity.
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