Figure 1

The presence of NETs (MPO and histones: H2A, H2B, and H3) in the chorion and the placental decidua. Chromogen 3.3′-diaminobenzidine: (1) anti-MPO, (2) anti-H2A, (3) anti-H2B, (4) anti-H3 antibodies; (A) control group, without granulocytes (magnification 200x); (B) women with miscarriage, with granulocytes (magnification 400x); (C) women with miscarriage, with NETs (arrows) (magnification 400x).