Fig. 2.

Macrophages (BF24) were stimulated in triplicate with various combinations of oral Gram-positive bacterial sonicates. Supernatant levels of IL-8 were determined at 24 h. The points denote the mean of at least triplicate determinations for each stimulant combination. The designations in the graphs identify the microorganism and concentration used [i.e. Ss(1) or Sg(5)]. All stimuli elicited levels of IL-8 significantly greater than the media control at least at p < 0.05. No significant differences were noted with any of the combinations