Figure 6.

The herb extracts inhibit EV71 or CVA16 infection induced proinflammatory response. Vero cells were infected with EV71 (a) or CVA16 (b) at an MOI of 3 in the presence or absence of HCT or MHB at indicated concentrations. The total RNA was isolated by the TRIzol reagent at 16 hr PI. Five hundred nanograms of total RNA was reverse transcribed and amplified by PCR (upper panels) or by quantitative real-time PCR (lower panels) using primers specific for IL-6 and GAPDH. PCR products were run on a 2.0% agarose gel and visualized with ethidium bromide staining. Data are presented as mean ± SE of triplicate samples. The results are representative of two independent experiments.