Figure 3. Natural killer cells as a percentage of total lymphocytes in mice consuming red wines, ethanol, or water for 8 wk with and without lipopolysaccharide (LPS) stimulation. Values represent the means ± SD, n = 4 in the group without treatment and n = 6 in the LPSstimulated group. Bars having different letters are significantly different at P < 0.05.. Source: Percival SS, Sims CA. Wine modifies the effects of alcohol on immune cells of mice. J.Nutr. 2000;130:1091-1094.