At 4, 8, and 12 weeks after the surgery, the animals were euthanized. The operative area of each uterine horn was prepared and subjected to H&E and Masson’s trichrome staining. The thickness of the uterine endometrium was measured using ImageJ software.
For immunofluorescence staining, serial sections were immunolabeled with anti–EpCAM (1:200; ab221552, Abcam), Lgr5 (1:200; ab219107, Abcam), Ki67 (1:200; ab15580, Abcam), anti-α-SMA (1:200; ab7817, Abcam), anti-myosin (1:100; ab182981, Abcam), and FoxA2 (1:200; ab108422, Abcam). ImageJ software was used for analyzing the images, including the percentage of positive stained areas and glands. The percentage of glands was calculated with the following Eq. 2
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