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  • Title: [Effects of rat serum containing total flavonoid extract of Epimedium sagittatum on development of osteoblasts].
    Author: Ma HP, Jia ZP, Cheng KM, Zhang RX, Li MX, Wang J.
    Journal: Zhongguo Zhong Yao Za Zhi; 2008 Apr; 33(8):928-31. PubMed ID: 18619355.
    Abstract:
    OBJECTIVE: To investigate the effects of total flavonoid extract of Epimedium sagittatum (TFE) on the proliferation and differentiation of newborn rat calvarial osteoblasts (ROB). METHOD: TFE was supplemented into the culture medium of ROB at 0. 1, 1, 10 and 100 microg x mL(-1) respectively. The serum of rats administered TFES (SRAT) was also added into the medium in a parallel treatment at 2.5%, 5% and 10% respectively. Their effects on cell proliferation and differentiation was studied by MTT and the analysis of osteogenic differentiation marks. RESULT: TFE had no appreciable and on cell proliferation and differentiation at any concentration. However, 2.5% and 5% SRAT stimulated cell proliferation strongly and, 5% SRAT significantly promoted the maturation and function of osteoblast by improving the alkaline phosphatase activity, osteocalcin secretion, calcium deposition and the number of mineralized nodular structures. CONCLUSION: The metabolites of TFE should be the anti-osteoporosis constitutes of Epimedium sagittatum.
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