Fig. 8From: Ultrastructural changes during osteogenic differentiation in mesenchymal stromal cells cultured in alginate hydrogelDifferences in the activity of alkaline phosphatase, and osteocalcin and osteopontin concentrations in cell culture supernatants after 3 weeks of experiment between osteogenic (OG) and non-osteogenic (non-OG) culture conditions; *p < 0.01Back to article page