胚细胞

An endodermal sinus tumor of the testis is shown composed of primitive germ cells that form glomeruloid or embryonal-like structures.

睾丸的内胚层窦肿瘤由原始生殖细胞构成，这些细胞形成血管球或胚芽样结构。

Aim:To explore the feasibility of neural stem cells derived from both fetal rat ependyma and adult rat bone marrow.

目的 ：探寻胚鼠室管膜和成鼠骨髓分离培养神经干细胞的可行性。方法：将分离的胚脑室管膜组织或成年骨髓细胞分别特殊培养。

It showed that in conditions of water temperature 20～21℃,salinity 20～30,pH 8.0～8.3,the fertilized eggs developed to 2-cell in about 2h,blastula stage in about 15h,gastrula stage 30h and the hatched out larva 152h after fertilization.

其结果表明：在水温20-21℃、盐度20-30、pH值8.0-8.3的条件下，受精卵受精后2h为2细胞期、15h为囊胚期、30h为原肠期、55h为胚体期、152h孵出仔鱼

Protein reserves riched in the cytoplasm of haustorial cells, especially in the site between haustorial cells and endosperm cells.

胚乳吸器的细胞质，尤其是与胚乳本体细胞交界处的细胞质富含蛋白质。

Methods Both in malformed embryos induced by excess retinoid acid and normal KM mice, expressions of lectin receptors of WGA, RCA and ECL in the epithelium of palatal shelves and the mesenchyma were determined by affinity histochemistry using biotin-marked corresponding lectins.

以生物素标记的凝集素受体WGA、RCA和ECL为探针，应用亲和细胞组织化学染色方法检测上述3种凝集素受体在RA致畸鼠胚和相应对照组鼠胚腭板上皮及其间充质的分布状况和变化规律。

CCSK is a rare type of renal neoplasm in childhood and its diagnosis relies mainly on histopathology and immunohistochemistry. It is important to be familiar with the morphological variants of CCSK to avoid confusion with other similar lesions, such as Wilm's tumor, congenital mesoblastic nephroma, malignant rhabdoid tumor of kidney, primitive neuroectodermal tumor.

CCSK是一种罕见的儿童期恶性肾肿瘤，诊断主要依靠组织病理学和免疫组化，熟悉其形态学变异有利于与其它类似病变如肾母细胞瘤、先天性中胚叶肾瘤、肾恶性横纹肌样瘤、原始神经外胚叶肿瘤等鉴别。

The results showed that in the control and experimental groups, HMGB1 immunoreactivity was all diffusely distributed in the cytoplasm of neuroepithelial cells and mesenchymal cells surrounded the neural tube at 8,16 and 24 hours after water bath treatment.

将孕鼠随机分为实验组和对照组，分别于水浴处理后8、16、24、40、64 h（相当于胚龄第8、8.5、9、9.5、10.5 d）处死孕鼠，剖腹取鼠胚，制备石蜡切片，应用免疫荧光染色技术检测NTDs发生过程中HMGB1在神经上皮细胞中的表达变化。

Methods PESC lines were derived from parthenogenetically activated blastocyst inner cell mass of different mice strains and cultured in different systems.

将小鼠MⅡ期卵子孤雌激活发育至囊胚，然后从囊胚内细胞团分离孤雌胚胎干细胞。

In this study, a new horizontal microinjection system has been established to solve these problems. Because the average time per pronuclear embryo by microinjection has been significantly shortened with the horizontal system, the cleavage rate and 16-cell rate of those microinjected embryos increased markedly.

为了解决这些问题，本研究有针对性地设计了新型的水平微注射系统，利用此系统，可明显缩短常规注射原核胚的平均时间，注射后原核胚的分裂率、8-16细胞胚胎发育率也明显提高。

A new method for enucleating MⅡ nucleus in mouse and rat was induced; Living births were obtained from IVF of mouse oocytes reconstructed by transfer of metaphase Ⅱ chromosomes. For the interspecies nuclear transfer between mouse and rabbit, the reconstructed embryos could develop into blasocyst in vitro.

在不同品系小鼠卵母细胞核质交换移植中将电融合的重构卵进行IVF，经胚胎移植后顺利产仔；在异种核移植方面，小鼠核与兔卵母细胞的异种重构胚在体外培养条件下发育至囊胚阶段。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。