胚细胞

Results There were fetal type in 12 cases, embryonal type in 7 cases, anaplasia type in 3 and mixed type in 2. The cytoplasmic postive expression of CK, AFP, S-100 protein and Vimentin of epithelial tumor cells were found in 14, 10, 9 and 6 cases respectively. Positive staining of CEA, P53 and P16 of nuclei of epithelial tumor cells were found in 11, 9 and 7 cases respectively.Among the 12 cases who underwent surgical excision, 8 patients with fetal type survived over 5 years. Conclusions This study suggests that immunoreaction of hepatoblastomas are different in the histological subtypes.

结果 胎儿型12例，胚胎型7例，间变型3例和上皮间叶混合型2例；细胞角蛋白、甲胎蛋白、S-100蛋白和波形蛋白在肿瘤上皮细胞浆的表达分别为14例、10例、9例和6例，癌胚抗原、P53和P16蛋白在细胞核中的表达分别是11例、9例和7例；手术切除肿瘤12例中8例生存期超过5年者均为胎儿型。

Wilms tumors with unfaorable histology contain anaplasia – defined as the presence of hyperchromatic, enlarged nuclei (at least 3 times as large as blastemal nuclei), and multipolar mitotic figures.

如有细胞间变则提示Wilms'瘤预后不良，所谓细胞间变，表现为染色质粗糙，胞核增大（至少是后肾胚芽细胞核的3倍大小）以及多极性有丝分裂像。

Flow cytometric analysis of bone marrow aspirate demonstrated a CD56 positive population of blastic cells.

抽出骨髓用流式细胞仪分析，其中的胚母细胞多为CD56阳性的。

BACKGROUND AND AIM: To explore the cytotoxicity and genotoxicity of beryllium sulfate to human embryonic lung fibroblastin vitro .

背景与目的：探讨硫酸铍对体外培养的人胚肺成纤维细胞的细胞毒性和遗传毒性。

Wilms" tumor is one of the most common solid tumors in children, and the genesis of Wilms" tumor is believed to be associated with delayed differentiation of metanephric blastema in fetus and retaining proliferation in postnatal period.

肾母细胞瘤（Wilms tumor， WT）是儿童最常见的实体瘤之一，其发病与后肾胚基细胞分化受阻并在出生后继续增殖有关。

The nerve need not be present throughout the entire period of regeneration; once the limb has begun to grow and tissues are sufficiently differentiated, the nerve may be removed without impariment of the morphegenetic potency acquired by these tissues during their earliest stage of formation. Singer (1974) has shown that it does not matter for regeneration what type of nerve, whether motor, sensory, or autonomic, is present in the blastema.

但是再生的肋骨市是「不完全发育」，神经不会在整个再生过程中呈现出来；一旦，肋骨开始生长，而且组织得到足够的养分，神经就可以从器官器官再生的部位移除，力量，是细胞在早期形成的时间得到的Singer，则证明了：任何细胞组织，对再生来说，是不相关的，不管是运动、感觉、自动的，都在胚芽中呈现。

To show that this, too, is possible, the researchers created a special sort of blastocyst whose cells have double the number of chromosomes found in normal mouse cells.

为证明这是可能的，研究人员制造了一种特殊的胚泡，它的细胞较正常老鼠细胞有两倍的染色体。

Shortly after implantation the blastocyst wall, the trophoblast, consists of two layers of cells.

植入之后不久，胚囊的壁，即滋养细胞含有两层细胞。

Methods: Human mature oocytes were cryopreserved using cryoleaf. Resuscitated oocytes were administered by intracytoplasmic sperm injection, embryo transplantation or cultured to blastulation, observing the fertilization and developmental capacity of oocytes.

运用cryoleaf进行人类成熟卵母细胞玻璃化冷冻保存，复苏后行胞浆内单精子注射-胚胎移植或培养至囊胚形成，观察复苏后卵母细胞受精及发育能力。

Objective:To assess the role of carcinoembryonic antigen immunocytochemistry in the diagnosis of meningeal carcinomatosis.

目的 ：探讨癌胚抗原免疫细胞化学方法在诊断脑膜癌病(meningealcarcinomatosis，MC)中的作用。方法：对1 3例确诊为MC患者的 2 1份脑脊液标本、5例非MC患者的 7份标本分别进行常规脑脊液细胞学检查和CEA免疫细胞化学检查。

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。