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Table 1 Morphometric and stereologic data of the interplacentomal uterine wall in cattle during pregnancy (mean value ± SD)

From: Quantitative morphological changes in the interplacentomal wall of the gravid uterine horn of cattle during pregnancy

parameters 1st trimester (n=14) 2nd trimester (n=17) 3rd trimester (n=16)
height of SE (μm) 31.26 +/− 11.87a 46.31 +/− 8.40b 45.61 +/− 5.63b
NCR of SE 0.42 +/− 0.08a 0.51 +/− 0.15a 0.51 +/− 0.09a
height of IGE/DGE (μm) 19.59 +/− 3.41a 22.42 +/− 2.02b 25.43 +/− 3.09c
NCR of IGE/DGE 0.58 +/− 0.11a 0.44 +/− 0.07b 0.54 +/− 0.12a
diameter of IG/DG (μm) 94.2 +/− 19.3a 166.0 +/− 36.6b 239.1 +/− 46.1c
lumen diameter of IG/DG (μm) 55.9 +/− 16.1a 122.4 +/− 35.8b 187.9 +/− 41.1c
Vv of EGE/EM (%) 24.6 +/− 5.5a 24.2 +/− 4.7a 22.9 +/− 5.5a
Vv of EGL/EM (%) 8.2 +/− 5.7a 26.1 +/− 10.8b 40.1 +/− 10.9c
Vv of ES/EM (%) 67.2 +/− 8.5a 46.1 +/− 6.7b 37.0 +/− 10.0c
diameter of MSMC (μm) 9.71 +/− 1.16a 12.43 +/− 1.37b 12.93 +/− 1.37b
NCR of MSMC 0.050 +/− 0.024a 0.047 +/− 0.017a 0.028 +/− 0.010b
Vv of MSMC nuclei/MM (%) 4.41 +/− 2.02a 4.00 +/− 1.41a 2.36 +/− 0.85b
Vv of MSMC cytoplasm/MM (%) 89.34 +/− 3.90a 86.34 +/− 3.29ab 85.00 +/− 5.01b
Vv of MS/MM (%) 6.11 +/− 3.03a 9.66 +/− 2.99ab 12.65 +/− 5.25b
  1. Means with different letters are significantly different. n: number of animals; SE: endometrial surface epithelium; NCR: nucleus:cytoplasm ratio; IGE/DGE: epithelium of intermediate and deep glands; IG/DG: intermediate and deep glands; Vv: volume density; EGE: endometrial gland epithelium; EM: endometrium; EGL: endometrial gland lumina; ES: endometrial stroma; MSMC: myometrial smooth muscle cells; MM: myometrium; MS: myometrial stroma.