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K-carrageenan enhanced MC3T3-E1 pre-osteoblast metabolic activity and proliferation from day 1 to day 3. (A) Presto-blue cell metabolic activity. Data are expressed as κ-carrageenan-treated-over-control (T/C) ratio. (B) Total cellular DNA content. Values are mean ± SD from 4 independent experiments. Significant effect of κ-carrageenan, * p < 0.05, ** p < 0.01, *** p < 0.001, **** p < 0.0001.
