Ermint extract at the indicated concentrations for 1 h at 37°C and subsequently added to TZM-bl cells. Cells were washed the following day and analyzed for GFP expression by flow cytometry on day 3 post infection. (E) Lemon balm extract was dialyzed overnight against water at molecular weight cut-offs of 3.5 kDa or 12 kDa and then tested for antiviral activity as described above. (F) Replication-competent ecotropic MoMLV-GFP was exposed to lemon balm extract prior to addition to primary rat T-cells. The level of infection of cultures was scored on day 4 post infection and the percentage of GFP-positive cells of solvent-treated controls was set to 100%. Experiments were performed in triplicate, and 2–3 independent experiments were conducted. Given are arithmetic means ± SD from one representative experiment (two independent experiments are shown for VSV-G).<p><b>Copyright information:</b></p><p>Taken from "Aqueous extracts from peppermint, sage and lemon balm leaves display potent anti-HIV-1 activity by increasing the virion density"</p><p>http://www.retrovirology.com/content/5/1/27</p><p>Retrovirology 2008;5():27-27.</p><p>Published online 20 Mar 2008</p><p>PMCID:PMC2288616.</p><p></p
