Figure 7.

Serum nitric oxide and VEGF profiles. Serum nitric oxide (NO) levels (a) and vascular endothelial growth factor (VEGF) levels (b) with the local exposure to Chlamydia trachomatis (Ct) or a systemic exposure to HgCl₂ (Hg) or both (Ct + Hg) in contrast to normal rat serum. For both NO and VEGF, the increment seen with dual-exposure to Ct and HgCl₂ was statistically greater than that seen with either Ct or HgCl₂ alone (n = 4 in each group). HgCl₂, mercuric chloride.