QRT-PCR analysis of mRNA expression induced by <i>Borrelia</i> in kinetic experiments with fibroblasts.

<p>The mRNA levels of IL-8, IL-6, CXCL1, SOD2 and MMP-12 were normalized to the β-actin housekeeping gene level and expressed as relative changes in gene expression compared with untreated cells (NEG). Each bar shows the mean ± SDs of triplicate values and are representative of three independent experiments. **P<0.01; and *P<0.05 compared between stimulated and unstimulated cells.