Figure 1 Effect of SIN on embryo abortion in RSA mice. (A) Embryo abortion sites of pregnant mice on Day 13.5 of pregnancy in each group. a: control group, 0 embryos resorbed; b: RSA group, 2 embryos lost; c: SIN-treated group, 0 embryo resorbed. Arrows indicate resorbed embryos. (B) Comparison of embryo resorption rates in each group. * P<0.05, compared with the control group; # P<0.05, compared with the RSA group.