胚胎

This book ambitiously incorporates all the latest and essential subjects on molecular regulation in embryonic, tissue, and cancer stem cells.

这本书雄心勃勃地融合了所有关于胚胎，组织最新的分子调控和重要课题，癌症干细胞。

Results It was demonstrated that β-TrCP expressed in oral epithelium, tooth bud, mesenchymal cell cytoplasm of ameloblast and edontoblast of different stage of tooth development.

结果β-TrCP在胚胎10.5、13.5、14.5、16.5、18.5d的小鼠牙胚上皮层与间充质层，以及出生后0、3、6d的小鼠成釉细胞与成牙本质细胞胞浆呈特征性表达。

RT-PCR reveals a ubiquitous expression pattern of amphioxus NM23-Bbt2 in all adult tissues and it was also expressed in all stages during the embryogenesis.

RT-PCR分析表明文昌鱼NM23-Bbt2在所检测的组织和胚胎发育时期中的非特异性的表达模式。

ABSTRACT Amphioxus, a cephalochordate, is the closest living relative to vertebrate, and has been widely known as the most important animal...

文昌鱼是介于无脊椎动物和脊椎动物之间的过渡类型，是研究动物进化和胚胎发育的典型材料。

ABSTRACT Amphioxus, a cephalochordate, is the closest living relative to vertebrate, and has been widely known as the most important animal to study the origin and evolution of vertebrates.

文昌鱼是介于无脊椎动物和脊椎动物之间的过渡类型，是研究动物进化和胚胎发育的典型材料。

For their attempt to develop embryonic stem-cell lines to model diseases such as amyotrophic lateral sclerosis.

他们努力发展胚胎干细胞系以建立一些疾病的模型，如肌萎缩侧索硬化症的模型。

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。

RESULTS: Thirty-two cases were anencephalia, 31 hydrocephalus, 4 hydroancncephalus, 11 neningocele or encephalomeningocele, 25 spinal meningocele with myeloschisis, 12 Dandy-Walker deformity, 11 schizencephaly of forebrain and 22 choroid plexus cyst among the 148 fetuses. There were different expressions in various CNS deformities, which were correlated with abnormal development of embryo.

结果：148例中枢神经系统畸形胎儿中，无脑儿32例，脑积水3l例，积水性无脑4例，脑膜或脑脑膜膨出11例，脊柱裂脊膜膨出者25例，Dandy-Walker畸形12例，前脑无裂畸形11例，脉络丛囊22例，不同类型的中枢神经系统畸形有不同声像图表现，并与其胚胎发育过程异常相关。

These defects, which also include rarer conditions such as anencephaly, occur in human embryos if there is a problem with the normal development of the nervous system.

这些缺点，还包括如无脑畸形罕见的条件，发生在人类胚胎是否有与神经系统的正常发展的问题。

Later, many animal experiments have confirmed that the heat of animal embryos be harmful.

后来，许多动物的实验都证实了高热对动物胚胎具有危害性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。