卵母细胞

I report here that maternal gene xNorrin, a homologue of Norrie Disease gene, is expressed in animal pole and enriched in dorsal blastomeres of early embryos.

爪蟾背部动物极的一部分细胞将发育成神经外胚层，而母源xNorrin mRNA正是富集在卵母细胞和早期胚胎的动物极半球。

1, cumulus cell had important role on nuclear and cytoplasmic maturation of oocytes.

1，卵丘细胞对卵母细胞的核和胞浆成熟均有重要作用。2。

A cell from which an egg or ovum develops by meiosis;a female gametocyte.

卵母细胞一种通过分裂产生卵子的细胞，是一种雌性配子母细胞

Immature egg excised from ovariole of the female wasp has a sheath of follicular epithelium but mature egg from lateral oviducts does not have it.

位于腰带长体茧蜂雌蜂卵小管中的未成熟的卵母细胞表面有一层滤泡细胞，而位于侧输卵管中的成熟卵表面则没有。

Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China on artificial activation and parthenogenesis in mammalian oocytes are reviewed, in-cluding oocyte activation and

综述了哺乳动物卵人工激活与孤雌生殖研究的主要进展，包括卵母细胞的激活与孤雌发育，父源和母源基因组在胚胎发育中的作用，以及孤雌生殖小鼠的诞生。

Previous studies have demonstrated that primary spermatocyte can undergo meiotic divisions in MI oocytes and the resulting embryos can develop to term. However, the success rate is very poor.

已经证明初级精母细胞在显微融入MI卵母细胞后可以完成减数分裂并且产生的胚胎可以发育到期，只是发育率还非常低，作为一种形式的核移植，细胞周期的同步化处理对于胚胎的发育具有重要意义。

The cleavation rates and blastocyst development rates of cloned embryos were used to assess the efficiency of different operational procedure. Finally, the best combination of operational procedure, that the spindle-viewer system was used for oocytes enucleating, and donor cell was electrofused into ooplasm by electrical pulse (1.9 kV/cm, 10 ms, two) to reconstruct bovine cloned embryos.

以核移植胚胎的卵裂率、囊胚发育率作为检测指标，对不同的方法所获得的克隆胚胎的卵分裂率与囊胚发育率进行比较，最后筛选获得1个优化的牛体细胞核移植操作程序，即采用Spindle view系统对牛卵母细胞进行去核操作，将供核体细胞注射到卵周隙，然后通过电融合法将供体核引入去核卵细胞质(电融合参数为1.9 kV/cm，脉冲时程10 ms，方波2次间隔2 s)。

This experiment is for the purpose of unifying the porine ovocyte in vitro mature raise and the ROSI correlation operation, establishes in the ovicell nature the round sperm cell microinjection fertilization technology procedure, the exploration porine round sperm cell micro fertilization possibility, the research affects this kind of special cell microinjection fertilization effect the factor, for further studies the porine ROSI technology to provide the basic data.

本试验旨在结合猪卵母细胞体外成熟培养及ROSI相关操作，建立卵胞质内圆形精细胞显微注射受精技术程序，探索猪圆形精细胞显微受精的可能性，研究影响这种特殊细胞显微注射受精效果的因素，为进一步研究猪ROSI技术提供基础资料。

The results showed that the Ang II positive staining was observed not only in thecal cells , oocytes and zona pellucida of the follicles at different developmental stages but also in corpora lutea.

结果表明：Ang II分布在不同发育阶段卵泡的内、外膜细胞，卵母细胞及其透明带上，颗粒细胞和卵丘细胞未见着色。

Results The expression of Foxo3a, Bim, FasL in oocyte nests and primordial follicles were detected in the nuclei and cytoplasms of some oocytes. The patterns of Bim and FasL positive rates were consistent with that of Foxo3a and TUNEL positive oocytes rates, which reached the peak in the ovaries of 2-day-old rats.

结果 免疫组化显示Bim和FasL都在新生大鼠部分卵母细胞巢和原始卵泡的卵母细胞核内和胞浆高表达，且阳性率曲线都在2d达到高峰，随后逐渐降低，与TUNEL和FoXo3a的阳性率变化曲线一致。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。