第一极体

结果：裸卵各卵泡刺激素组与对照组的卵母细胞生殖泡破裂发生率及第一极体排出率差别无显著性意义（P0.05）；

Results Denuded oocyte groups had similar percentage of undergoing germinal vesical breakdown and similar percentage of PB1 extrusion ( P0.05 ) .

利用细胞松弛素B抑制第一极体排放诱导近江牡蛎（Crassostrearivularis）四倍体

Tetraploids induced by inhibiting polar body I with cytochalasin B in Jinjiang oyster , Crassostrea rivularis

CB抑制合浦珠母贝受精卵第一极体释放的染色体分离

Chromosome segregation in fertilized eggs from pearl oyster Pinctada martensii Dunker following the first polar body inhibition with cytochalasin B

培养后有156个卵母细胞排出第一极体，IVM率768%（156203）；

First polar bodies were observed in 156 oocytes , maturation rate was 76.8 % .

对照组直接用成熟培养液培养，观察其生发泡破裂（GVBD）和第一极体形成的过程。

Germinal vesicle breakdown ( GVBD ) and the first polar body extrusion were observed .

抑制第一极体排出的最佳时间是在卵子受精后10min。

The best time of inhibition of the first polar body is 10 min after fertilization .

小鼠第一极体（PB1）重组卵母细胞去精核孤雌发育研究

Research on Parthenogenetic Development of Mouse Recombinant Oocyte Which Was Removed Sperm Nucleus after Engraft PB1

目的建立用全染色体涂抹探针（WCP）对卵子第一极体进行荧光原位杂交（FISH）检测染色体的方法。

[ Objective ] To establish the method of chromosome analysis of first polar bodies ( 1PBs ) by using whole chromosome painting probes in fluorescence in-situ hybridization ( FISH ) .

目的研究内皮素-1（ET-1）对小鼠未成熟卵母细胞生发泡破裂（GVBD）、第一极体（PBⅠ）排出的影响。

Objective : To study the effects of endothelin-1 ( ET-1 ) on mouse oocyte germinal vesicle breakdown ( GVBD ) and extrusion of the first polar body ( PBI ) .

试验表明，当体外成熟培养液中含有3μg/mlFSH时，随着LH添加量的增加，水牛卵母细胞的第一极体排放率和成熟率逐渐提高；

The results indicated that , when in vitro maturation medium contained 3 μ g / mL FSH , PB1 exclusion and maturation rate of the buffalo oocyte increased correspondingly with the increase of LH .

结果：①注射人绒毛膜促性腺激素12h，开始排卵，可见第一极体的卵母细胞占72.22%，23.08%第一极体已开始退化。

RESULTS : ① At 12 hours after hCG injection ( the time of ovulation ), there was 72.22 % oocytes from oviductal ampullae in FPB , and 23.08 % FPB began to degenerate .

25～30min排出第一极体；第二极体排出的时间约在授精后55分钟。

By the 25-30th minute postinsemination , the first polar body was ejected . By 55 min after the insemination , the second polar body was released .

目的探讨卵胞浆内单精子注射（ICSI）中成熟卵细胞第一极体位置、形态对受精和胚胎质量的影响。

Objective : To investigate the effects of the position and the morphology of the first polar body in murine oocyte on the fertility rate and fertilized egg quality in intracytoplasmic sperm injection ( ICSI ) .

4-排出第一极体（PbI）的卵母细胞的体外受精率和2-细胞率（85-9%，22-4%）均高于GV期卵母细胞（71-1%，12-9%）。

Fertilization and 2-cell rate in those oocytes with polar body 1 ( 85.9 % , 22.4 % ) were higher than those of GV-stage oocytes ( 71.1 % , 12.9 % ) .

它在卵母细胞的生发泡破裂（GVBD）、染色体凝集、MⅠ期纺锤体组装和第一极体排放等过程中起着重要的调节作用。

It plays a pivotal role in the regulation of germinal vesicle breakdown ( GVBD ), chromatin condensation , spindle assembly and extrusion of the first polar body .

因此推测，卵母细胞的第一极体形态和卵周隙大小反映了卵母细胞的成熟度，受精前观察卵母细胞第一极体和卵周隙的形态可以预测ICSI后的受精能力。

Present data indicates that , oocyte morphology , including the shape of the first polar body and the size of perivitelline space , reflects the maturity of the oocytes and may have a predictive value on the ability of fertilization following ICSI .

于1996～1997年，用6-二甲基氨基嘌呤（6-DMAP）抑制受精卵第一极体的释放，诱导太平洋牡蛎产生三倍体。

From 1996 to 1997 , experiments were carried out to induce triploid in the Pacific oyster ( Crassostrea gigas ) by inhibiting release of polar body I of the zygotes with 6 dimethylaminopurine ( 6 DMAP ) .

为了解在珍珠贝多倍体诱导中四倍体形成的机制，用醋酸地衣红染色技术研究抑制马氏珠母贝（Pinctadamartensii）受精卵第一极体排放后的染色体行为。

To probe into the mechanism behind the formation of tetraploids in multiploid induction of pearl oyster , chromosome behaviour in fertilized eggs of Pinctada martensii following inhibition of the first polar body ( PB1 ) was studied with acetic orcein staining techniques .

诱导太平洋牡蛎四倍体各因素的最优水平组合：当50%受精卵出现第一极体时，将受精卵浸泡在含6－DMAP450μmolL－1的海水中15min；

The best level combination of induced tetraploid in Pacific oyster was : when the first polar bodies were found in 50 % zygotes , rinsed the zygotes continuously in sea water with 450 μ molL - 1 6-DMAP for 15 min.

结果As2O3对小鼠卵母细胞生发泡破裂、超排卵的卵母细胞数目没有影响，但可以抑制卵母细胞第一极体的释放，降低体外受精率和卵母细胞的存活率。

Results Arsenic could inhibit the extruding of the first polar body , reduce the quality and the viability of oocyte and lower the rate of IVF , but only little impact on the germinal vesicle breakdown ( GVBD ) and the number of oocytes after induction of ovulation .

小鼠卵母细胞第一极体的采集与保存

Collection and Preservation of First Polar Body of Oocyte in Mice

第一极体形态学与人类卵细胞非整倍体相关关系的研究

The study on correlation between first polar body morphology and oocyte aneuploidy

抑制第一极体的C。

Daily growth of larvae produced by inhibiting the first polar body with C.

部分卵子的第一极体可分裂成两个细胞。

The first polar body of some inseminated eggs can divided in two cells .

第一极体位置对卵胞浆内单精子显微注射结局的影响

The effect of ICSI in the site of the first polar body of oocyte

用全染色体涂抹探针进行卵母细胞第一极体荧光原位杂交

Application of Whole Chromosome Painting Probes in Fluorescence In-situ Hybridization of First Polar Bodies

结论通过卵细胞第一极体形态可预测受精卵及卵裂期胚胎质量。

Conclusion Zygotes and embryo quality can be predicted by morphology of the first polar body .

卵细胞第一极体形态与受精卵及胚胎质量关系的研究

Study on the relationship between the first polar body morphology of oocyte and zygote , embryo quality

根据第一极体与纺锤体之间形成的角度分为0°，0～80°，80～100°以及＞100°组。

These groups were 0 degree , 0-80 degree , 80-100 degree and > 100 degree group .

卵母细胞生发泡破裂，第一极体分出，核处于第2次成熟分裂中期。

The nucleus was at metaphase ⅱ after germinal vesicle divided and the first polar body appeared .