Figure 9. Concentration of β₁-integrin adhesion receptors, integrin-associated focal adhesion proteins talin and vinculin, markers of osteogenic cell differentiation osteocalcin, alkaline phosphatase, collagen I and osteopontin, and immunoglobuline adhesion molecule ICAM-1, a marker of cell immune activation, in MG 63 cells on day 7 after seeding on polystyrene culture dishes (PS) and NCD films doped with 0, 133, 1000 or 6700 ppm of boron.

Measured by ELISA per mg of protein. The absorbances are given as a percentage of the control values obtained on PS. Mean ± S.E.M. from 3 experiments (each included 12–16 measurements for each experimental group). ANOVA, Student-Newman-Keuls Method. Statistical significance: ^{I, II, III, IV}: p≤0.05 compared to the group labelled with the same Roman number.