Figure 5From: Effects of enamel matrix derivative and transforming growth factor-β1 on human osteoblastic cells ALP activity at 7 and 14 days. The results are expressed as μmol thymolphthalein/h/mg protein. The values are expressed as mean ± SD of representative results of three separate experiments in cell cultures established from three different patients, performed in quadruplicate for each treatment. *P < 0.05; **P < 0.01; ***P < 0.001.Back to article page