Abstract
To establish the murine model of moderate endometrial injury. Electrocoagulation was applied to induce endometrial injury of ICR mice with 0.5 watts power while contralateral uterine cavity acted as control without electrocoagulation. The endometrial histomorphology was observed in 7 days later by microscopy and fetal number of each lateral uterus assessed at 17.5 days after pregnancy. At 7 days post-electrocoagulation, the average endometrial thickness of operating side was significantly thinner than that of control side (1.14 ± 0.08 vs 1.88 ± 0.15 mm, P < 0.05). The density of endometrial glands of operating side was significantly lower than that of control side (20 ± 2 vs 32 ± 3 per 100x field, P < 0.05). After pregnancy, the average number of embryos at operating side decreased by 63.1% compared with control (3 ± 2 vs 8 ± 2, P < 0.01). The established model of endometrial electrocoagulation injury shows morphologic changes and decreased fertile ability. It has potential uses for animal studies of endometrial injury treatment.
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