Relationship of hepatitis B virus infection of placental barrier and hepatitis B virus intra-uterine transmission mechanism

Figure 1 The IHC staining results of the placenta of HBV carrier mothers. A: HBsAg positive cells in the vascular endothelial cell of the placenta villi (× 40); B: HBsAg positive cells in the trophoblastic cell of on the surface of placenta villi (× 40).

Figure 2 Immunofluorescence staining results of trophoblastic cells of different co-incubation time with HBV positive serum. A: 8 h; B: 24 h; C: 48 h.

Figure 3 HBV DNA detection results in the trophoblastic cell by RT-PCR. A: standard curve; B: detective result.