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Table 5 Localization and immunostaining intensity of eNOS expression in placental villous tissues

From: Intrauterine growth restriction and placental angiogenesis

  Normal pregnancy (n: 55) IUGR (n: 55) Statistical comparison P value
Score 0 n (%) 1+ n (%) 2+ n (%) 3+ n (%) 0 n (%) 1+ n (%) 2+ n (%) 3+ n (%) P*
CVSC - 55 (100) - - - - 10 (18.2) 45 (81.8) <0.001
VSMC 48 (87.3) 7 (12.7) - - - - 14 (25.5) 41 (74.5) <0.001
VVEC 48 (87.3) 7 (12.7) - - - - 14 (25.5) 41 (74.5) <0.001
ST - 55 (100) - - - - - 55 (100) <0.001
CT - 55 (100) - - - - - 55 (100) <0.001
EVT 55 (100) - - - - - - 55 (100) <0.001
  1. IUGR: Intrauterine growth restricted; CVSC: Chorionic villous stromal cells; VSMC: Vascular smooth muscle cells; VVEC: Villous vascular endothelial cells; ST: Syncytiotrophoblasts; CT; Cytotrophoblasts; EVT: Extravillous trophoblasts [Staining intensity of eNOS were scored as follows: 0 (negative), weak (1+), moderate (2+), and strong (3+)] *P: Statistical comparison of normal and IUGR placental tissues