Cytokine production in different pregnant groups.

<p>(A-F), mRNA levels of TNF-α, IL-6 and MCP-1 in the placenta (A-C) and kidney (D-F) from different pregnant groups were measured by qRT-PCR and normalized to that of GAPDH. Data are mean ± SEM, N = 1–2 placentas for 10 rats/group and 1 kidney for 10 rats/group, *<i>P</i> < 0.05 vs. saline-treated pregnant group, N.S. means <i>P</i> > 0.05. (G-H), Concentrations of IL-6 (G) and MCP-1 (H) in the serum from different pregnant groups were measured by ELISA. Data are expressed by mean ± SEM, N = 10 rats per group. *<i>P</i> < 0.05 vs. saline-treated pregnant group.