胚细胞

BACKGROUND: At present, studies show that a kind of stem cell community which in many kinds of organizations can differentiate into tissue cells of different embryonic layers; but those are different from embryonic stem cells, embryonic stem cell will lose the part differentiation potential gradually during the development of pregnancy, and will present some special phenotypes or the molecular markers, as CD105 and so on, will call it postembryonic pluripotent stem cells.

背景：目前研究认为在胚胎发育后的多种组织中存在一类干细胞群体，可分化为不同胚层的组织细胞；但又不同于胚胎干细胞，随着妊娠期间胚胎的发育胚胎干细胞会逐渐失去部分分化潜能，会出现一些特殊表型或分子标记，如CD105，称其为胚胎后亚全能干细胞。

UniESTs were obtained, 400 of them gained from the subtractive library of stage of proembryo mass and 468 from that of somatic embryo maturation.

上述3种抗氧化酶通过相互配合，协同调节胚性细胞的分化和发育。4。

We used transmission electron microscopy to study the ultrastructural changes in egg cell, zygote and two-celled proembryo of Beta vulgaris to provide information on the reproductive biology of angiosperms and related research into sugar beet.

为丰富被子植物生殖生物学资料，并为甜菜相关研究提供参考，应用透射电镜技术研究栽培甜菜卵细胞、合子和二细胞原胚的超微结构特征。

To study furderly the activity of CNTF mutant designed by computer molecular modling,this study used the methods of dissociated cultures of chick dorsal root ganglion、TF-1 prolification and the normal mice′weight loss tests.

为了进一步研究我室应用计算机分子模拟设计并表达纯化的睫状神经营养因子突变体蛋白的生物学活性，分别采用鸡胚背根神经节无血清培养法、TF-1细胞增殖法、正常小鼠减重法对其活性进行研究。

The results indicated that the mutant protein promoted the survival of dorsal root ganglion、induced TF-1 prolification and made the normal mice lose weight,decrease appetite and reduce fat index.The weight loss effect was dependant with its administration dosage,ED50 was 150.986?

结果是突变体蛋白能促进鸡胚背根神经节的生长；促进TF-1细胞增殖，MTT测定法表明突变体蛋白与国际参考品相比，比活不低于2.0×106U/mg；使正常小鼠的体重减轻，摄食量减少，脂肪指数下降，并且体重的减轻与突变体蛋白的给药剂量呈现良好的剂量依赖关系，其ED50为：150.986？

We compared the effects of ICSI with and without a combination of DTT and EA on male pronuclear formation and embryonic development of porcine oocytes.

比较DTT与电激活的联合处理或单一处理对ICSI后猪卵母细胞雄原核形成与胚发育的影响。

Results Histologically, AT/RT was characterized by the presence of rhabdoid cells associated with various degrees of primitive neuroectodermal, epithelial or mesenchymal differentiation.

结果 非典型畸胎样／横纹肌样瘤具有特征性的横纹肌样细胞，伴有不同程度的原始神经外胚叶、上皮和间质分化。

In the experimental group （transplanted with embryonic arcuate nucleus）, the endothelial cells remained intact, and connected tightly with subendothelial tissue, occasionally twisted nucleus could be seen.

实验证明，在被毁损弓状核区重新植入胚鼠弓状核细胞后对动脉粥样硬化有明显恢复作用，从而证实下丘脑弓状核对动脉粥样硬化的形成具有重要调控作用。

In the present study, we applied water-insoluble nickel oxide and nickel subsulfide to induce morphological transformation of human embryonic lung cells and to probe the differentially expressed genes related to the transformation.

因此本研究试图用两种水不溶性镍化合物诱发人胚肺细胞的恶性转化模型，并分离、克隆与之相关的差异表达基因，为深入研究镍致癌的分子机理提供初步的资料。

Both nickel oxide and nickel subsulfide were toxic to HEL cells after 24hr exposure at a relatively low dosage.

研究表明，二硫化三镍和氧化镍在较低剂量下均对人胚肺细胞MRC-9和IMR-90有毒性作用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。