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Mineral element levels and proliferative effects of several davallioids from different zones of China on osteoblastic-like UMR-l06 cell

Zi-Li Yin, Jian-Qiang Zhang, Jun-Kai Zhao, Chang-Cheng Zhu, Shu-Gang Lu, Zi-Gang Qian and Yi Jin

We used ICP-MS to determine the contents of thirteen mineral elements (Na, Mg, P, K, Ca, Cr, Mn, Fe, Ni, Cu, Zn, Cd, and Pb) in 27 species of Davallioid from the Yunnan province in China and tested their ethanol extracts for proliferative effects on the osteoblastic-like UMR-l06 cell. The order of average concentrations of mineral elements was K>Ca>Mg>P>Na>Mn>Fe>Zn>Cu>Pb>Ni>Cr>Cd. The min and max element contents for different mineral elements were K(2439.37-36929.92 mg/Kg-1 dw), Ca(2108.02-10130.27 mg/Kg-1 dw), Mg(1166.75-6996.91 mg/Kg-1 dw), P(277.63-4091.87 mg/Kg-1 dw), Na(53.11-1874.58 mg/Kg-1 dw), Mn(37.64-2430.03 mg/Kg-1 dw), Fe(33.33-1747.84 mg/Kg-1 dw) , and Zn(22.12-178.36 mg/Kg-1 dw), etc. Sixteen ethanol extracts had promoting effects on cell proliferation, and three of them, Humata platylepis (5, P%=36.3), Polypodisdesamoena (12, P%=32.3), and Drynaria rigidula (25, P%=36.8), had the most proliferative effects. From the research, we found that the high content of Ca and low content of Mn could result ina positive effect on proliferation of the osteoblast-like UMR-106 cell, while the low content of Ca and high content of Mn could result in an inhibitive effect on the proliferation of the osteoblast-like UMR-106 cell. The mineral element contents and biological activity of Davallioid showed a wide variability among different species.Mineral elements and biological activity in different Drynaria fortunei varied in the range and we confirmed that this was the result of different geo-environmental conditions and soil characteristics

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