Figure 2.

Reduction in influenza viral titers in the culture supernatants treated with the Peganum harmala seeds extract. The influenza A H1N1-infected MDCK cells were incubated with different concentrations of the extract for 24 and 48 hr. The supernatants were used for hemagglutination assay (A) or for viral RNA quantification by quantitative RT-PCR using influenza M gene (B). * p<0.05 from values obtained for treated samples compared to virus control (untreated sample). The data were analyzed by SPSS using Kruskal-Wallis test. The data are expressed as mean±SD of three independent experiments