Comparison of gene expression patterns in resting and LPS-stimulated monocytes.

A semilogarithmic plot reveals 40 tags that were decreased more than 10-fold in LPS-stimulated monocytes, whereas 60 tags were increased more than 10-fold. After normalization of the number of each tag, the relative expression of each transcript was determined by dividing the number of tags observed in monocytes or LPS-stimulated monocytes as indicated. To avoid division by 0, we used a tag value 1 for any tag that was not detectable in one of the samples. These ratios are plotted on the abscissa. The number of genes displaying each ratio is plotted on the ordinate. Mono and LPS indicate resting monocytes and LPS-stimulated monocytes, respectively.