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小鼠卵巢玻璃化冻存中FSH干预对移植卵巢VEGF和VEGFR-2表达的影响

Keywords: 小鼠,卵巢,FSH,玻璃化冻存,肾被膜下移植,VEGF,VEGFR-2

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Abstract:

目的通过在玻璃化冻存液中给予重组人促卵泡刺激素(rhFSH),观察冻存卵巢异体异位移植后VEGF和VEGFR-2表达的变化,探索卵巢玻璃化冻存中的FSH干预对移植卵巢血流重建相关因子的影响。方法对4周龄C57BL/6J小鼠卵巢进行异体肾被膜下移植,实验分为新鲜移植组(FCG)、单纯玻璃化冻存移植组(VCG)和0.3IU?mL-1FSH干预玻璃化冻存移植组(VG-FSH)。通过监测受体小鼠动情周期的变化、卵巢组织切片中正常卵泡百分比、移植后2、7、14、28d卵巢VEGF及其受体VEGFR-2的表达,判断FSH干预效果。结果FSH干预冻存组的正常卵泡数、VEGF及VEGFR-2的表达均高于单纯玻璃化冻存组(P<0.05),且均低于新鲜移植组;FSH干预冻存组动情周期恢复所需时间明显低于冻存组(P<0.05),而明显长于新鲜移植组(P<0.05)。结论玻璃化冻存全程添加FSH干预,有利于冻存卵巢移植后的卵泡存活及功能恢复,可能与上调促血管生成的VEGF、VEGFR-2蛋白的表达有关。

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