Effect of antibodies to β2GPI on the resorption rate and C deposition at the implantation sites in pregnant mice. The animals killed on day 17 of gestation 1 week after injection of β2GPI-Cy5.5. The percentage of fetal resorption was evaluated in 4 naive and 4 immunized animals (A) and the deposition of C3 and C9 was analyzed on the implantation sites of both groups of mice (B). Original magnification 200×.