查询词典 oocytes

I have constructed and screened a cDNA library of Xenopus oocytes with E-cadherin probe. One of the four cadherin-related mRNAs analyzed is possibly localized to the animal pole.

在本篇论文中，我们建立了蛙卵母细胞的cDNA library，并利用E-cadherin 探针从中选殖到几个cadherin-related基因，在已分析的四个基因中有一个基因在卵母细胞中有不均匀分布发生。

The results indicated that CIRP in the organisms could be induced at low temperature and might protect the organisms from the cold damage. The amino acid sequences deduced via cDNA clone were 100%, 99.4%, 95.5%, 67.4%, 58.4%,76.9%, and 79.1% identical to those of the CIRP in mice, rats, human, bullfrog and axolotl cells, and Xenopus embryos and oocytes, respectively.

根据克隆的cDNA所推测的氨基酸序列与GenBank上公布的小鼠、大鼠、人类、牛蛙、美西螈、非洲爪蟾胚胎细胞和卵母细胞的CIRP氨基酸序列同源性分别为100%、99.4%、95.5%、67.4%、58.4%、76.9%和79.1%。

In addition, we studied the distribution of mitochondria in metaphase Ⅱ rabbit oocytes, zygotes and early embryos by two active mitochondria dyes and revealed the change of active mitochondria during early development of rabbit embryos. We also found that the distribution of microfilaments and microtubules have similar patterns to that of active mitochondria, which is an important basis for further development of animal cloning study using the recipient oocytes derived from rabbit.

此外，我们应用两种线粒体荧光染料研究了日本大耳白兔体内成熟卵母细胞、正常交配后收集的受精卵及早期体外发育胚胎的活性线粒体的位置变化，首次揭示了兔早期胚胎中活性线粒体的变化特征及其与微丝微管变化的相关性，为进一步开展以兔卵母细胞作为核移植受体的动物克隆研究打下了重要的基础。

Inthe whole process, the oocytes, nurse cell and follicle cell morphology change. Inoocyte yolk formation and growth, the number of its nuclear trophoblast cell nucleoli,lamphrush chromosome with a strong synthetic material; oocytes also some syntheticmaterial; follicle cells in the yolk protein synthesis, provide access to exogenous yolkprotein.

在卵子发生的整个过程中，卵母细胞、滋养细胞及滤泡细胞形态均有明显变化；在卵母细胞生长及卵黄形成期，滋养细胞核内的多核仁现象、灯刷染色体与旺盛的物质合成有关；卵母细胞本身也合成一些物质；滤泡细胞参与卵黄蛋白的合成，并为外源性卵黄蛋白提供通道。

The results show that: 1 supplementation of protein to maturation media improves cumulus expansion in vitro compared to the protein-free control, but cumulus expansion is not necessarily related to oocyte nuclear maturation in pigs, and cumulus expansion is not the criterae for determination of nuclear maturation of pig oocytes, but only the exclusion of the first polar body; 2 exposure of pig COCs to hormone supplements for 23-24 hours improved cumulus expansion but had no significant effect on nuclear maturation compared to that for 46-48 hours; 3 under our research conditions, supplementation of different proteins into different maturation media has different effects on porcine oocyte nuclear maturation, but has no significant effect on subsequent embryonic development after IVF; 4 the nuclear maturation rates of pig oocytes matured in mTCM+pFF and mNCSU+pFF are superior than that in mNCSU+FCS; 5 different maturation media have no effect on pig oocyte cumulus expansion and subsequent embryonic development after IVF.

结果显示：(1)在成熟液中添加蛋白质可以加强卵丘细胞的扩散，但猪卵母细胞的核成熟与其周围的卵丘细胞扩展没有必然的联系，卵丘细胞扩散或成放射状不宜作为猪卵母细胞核成熟的标准，只有排出第一极体才能作为猪卵母细胞核成熟的标志；(2)在猪COCs的46-48小时成熟培养的后23-24小时阶段去除成熟液中的激素不但可以保证卵母细胞的核成熟率，而且可加强卵丘细胞的扩散；(3)在现有实验条件下，在mTCM和mNCSU中添加10％pFF与在mNCSU中添加10％FCS相比可获得较高的猪卵母细胞核成熟率；(4)在不同的成熟液中添加不同的蛋白质对猪卵母细胞核成熟率的影响效果不一样，但对体外受精后的早期胚胎发育影响不明显；(5)成熟液种类对猪卵母细胞的卵丘细胞扩散和体外受精后的早期胚胎发育无显著影响。

Studies on mouse nuclear transfer with adult male mouse ear fibroblast cells as donors In this study, C57BL/6 adult male mouse ear fibroblast cells and Kunming mouse MⅡoocytes were used as donors and recipients, respectively, to investigate the effects of different passages of donor cells and electrofusion times on the in vitro development of NT reconstructed embryos, when the oocytes were treated with 3% sucrose.

以成年雄鼠耳成纤维细胞为供体克隆小鼠的研究该研究以C57BL/6 成年雄鼠耳成纤维细胞为供体，昆明白小鼠MⅡ期卵母细胞为受体，研究了3%蔗糖处理卵母细胞去核后，供体细胞不同传代次数和电融合次数对核移植重构胚体外发育的影响。

However, when two maturing oocytes fused and two spindle will form in the big cell, the chromosomes will not intermingle. In the present study, we removed GV from one oocyte and transfer to the perivetelline space of another GV oocyte. After fusion the resulting oocytes which contained two GVs were cultured further in MEM.

在本实验中，我们利用小鼠GV期卵母细胞将一枚卵母细胞的生发泡取出后移至另一未经去核处理的GV期卵母细胞透明带下，经三次电脉冲作用后将融合的含有两个GV的卵母细胞放入MEM成熟培养液中培养，在培养成熟的不同阶段分别收集卵母细胞进行免疫荧光染色观察微管及核的变化。

Objective To determine whether 18S rRNA is expressed in ovaries and single immature oocytes in germinal vesicle and metaphaseⅠ or not and reveal the relationship between 18S rRNA and maturation of oocytes.

目的检测小鼠18S rRNA基因在卵巢及单个GV期、MⅠ期卵母细胞中的表达，揭示核糖体18S rRNA基因与小鼠卵母细胞成熟之间的关系。

With immunofluorescencecytochemistry and confocal microscopy,we found there were a lot of MAPK from 0-hour GV oocytes to 44-hour MII oocytes,and no active MAPK in 0-hour GVoocytes and no MAPK in the germinal vesicle.

通过体外培养猪卵巢卵母细胞至完全成熟，在培养一定时间取样用免疫荧光化学与激光共聚焦显微术结合的方法观察MAPK和p90rsk在卵内的分布规律，研究了猪卵母细胞中MAPK和p90rsk的表达和定位。

PKA activators such as cAMP, 8 - Br -cAMP or phosphodiesterase inhibitor isomethyl butyl xanthine or purified PKA catalytic subunit all can inhibit germinal vesicle breakdown and meiotic maturation in mouse oocytes, also in Xenopus oocytes.

以小鼠卵母细胞为实验对象，给予PKA激动剂cAMP、8-Br-cAMP或磷酸二酯酶抑制剂IMBX均可抑制小鼠卵母细胞的胚泡破裂及减数分裂成熟。

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。