Figure 4: Influence of glucosamine hydrochloride (GH) on iNOS mRNA expression after periostin stimulation in vitro. Human synoviocytes from an OA patient at 1 x 105 cells/ml were cultured with 100.0 ng/ml periostin for 12 h in the presence of various concentrations of GH. iNOS mRNA expression was measured by real time RT-PCR and the results were expressed as the mean iNOS/GAPDH ± SE of triplicate cultures. One representative experiment of two..
