Fig. 1. Effect of linoleic acid (LA) on CYP 2C9 messenger RNA levels in human endothelial cells as measured by reverse transcriptase-polymerase chain reaction (RT-PCR). Human umbilical vein endothelial cells were exposed to LA for six hours. The amplified PCR products were visualized using phosphor-imaging technology. Lane 1, control; lane 2, LA (90 µM). The values are presented as mean ± SEM of three sets of experiments. *Significantly different from control values.