Fig. 1

Maternal plasma cytokine levels in response to immune activation in late gestation. Pregnant mice on gestation day 17 were treated with poly(I:C) (POL; 5 mg/kg, i.v.) or vehicle control (CON) solution, and plasma cytokine levels were measured 3 h post-treatment. *P < 0.05, **P < 0.01, and ***P < 0.001, based on independent Student’s t tests. N = 6 in each group; all values are means ± s.e.m.