Fig. 7From: Real-time detection of antibiotics cytotoxicity in rabbit periosteal cells using microfluidic devices with comparison to conventional culture assaysOsteogenic gene expression. The gene expression of osteogenic markers relative to the expression of GAPDH as the endogenous control upon culture in the xCELLigence system at 7 days. a cbfa-1. b OPN. c OPNp. Cef = cefazolin. Cipro = ciprofloxacin. Van = vancomycin. Unit of antibiotic concentration: μg/mL. The asterisk (*) indicates p-value less than 0.05, while double asterisks (**) indicate p-values less than 0.01Back to article page