Antiviral and Antioxidant Activity of a Hydroalcoholic Extract from Humulus lupulus L.

Figure 5

(a) Immunofluorescence images of viral nucleoprotein (green fluorescence) in A549 cells infected for 4 h and 8 h with PR8 virus (left panel), with PR8 and 140 μg/ml HOP mixture (middle panel) or HOP treated after PR8 infection (right panel). HAU/ml values (8 h p.i.) are reported below the images. (b) M1 mRNA levels measured by qRT-PCR in A549 cells infected with PR8 virus for 2 h, with PR8/HOP mixture or HOP treated during (d.i.), after (p.i.), or during plus after (d.p.i.) infection. (c) TCID₅₀ from supernatants harvested 8 h p.i. of same samples as in (a).

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