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Concentration‐dependent effects of GRFT on cellular viability. The in vitro HIV‐neutralizing activity of (a) OSGRFT, (b) ESGRFT and (c) wild‐type rice extracts against CEM‐SS cells infected with HIV‐1RF is presented as cell viability relative to uninfected and untreated controls. Cell viability was assessed using the XTT assay. All points are averages (±SE) of triplicate measurements.
