Serum IL6 and CRP levels during pregnancy in WT and <i>Il6</i>-KO mice.

<p><b>A–B</b>. Serum IL6 (A) and CRP (B) levels as assessed by ELISA in virgin and pregnant WT mice at gestational days 7, 13 and 18 (n = 6–7). <b>D</b>. Serum CRP levels in virgin and late pregnant WT and <i>Il6</i>-KO mice. Data are expressed as mean ± SEM. One-way ANOVA, *P<0.05, **P<0.01.