胚胎

A high Ca zone was first observed in the animal pole right before the first cleavage, then it extended along the cleavage furrow and the Ca(superscript 2+) signal remained high in this region throughout the first cleavage.

在第一次卵裂过程中，斑马鱼胚胎的动物极顶端首先出现高钙斑，然后在分裂沟部位出现高浓度的钙信号，这一信号在卵裂过程中持续存在。

A high Ca2+ zone was first observed in the animal pole right before the first cleavage, then it extended along the cleavage furrow and the Ca2+ signal remained high in this region throughout the first cleavage.

在第一次卵裂过程中，斑马鱼胚胎的动物极顶端首先出现高钙斑，然后在分裂沟部位出现高浓度的钙信号，这一信号在卵裂过程中持续存在。

I report here that maternal gene xNorrin, a homologue of Norrie Disease gene, is expressed in animal pole and enriched in dorsal blastomeres of early embryos.

爪蟾背部动物极的一部分细胞将发育成神经外胚层，而母源xNorrin mRNA正是富集在卵母细胞和早期胚胎的动物极半球。

The typical pathological characteristics of SPTs may result from gradual degenerative changes induced anoxemia in some SPT's areas. The heterogeneity of SPTs on different antibody markers showed that the SPTs may be originated from pancreatic embryonic stem cells, and result from immature differentiation of the pluripotential stem cells during pancreatic genesis.

SPT典型病理特征是由于肿瘤组织不同区域相对缺血、缺氧所造成的退行性变的结果，SPT表达多种组织来源的抗原，反映其可能来源于胰腺干细胞及与其发育密切相关的胚胎神经嵴的神经前体细胞，且在发育过程中发生分化不成熟的结果。

Order in which they are expressed from anterior to posterior in the developing embryo .

这类基因常常成簇出现，在胚胎发育过程中，其活化顺序与生物纵轴的空间表达时相相符。

The result showed that the best time for sampling was 7 to 14 days after the first bud flowering on the main anthotaxy. The capacity of embryoid production varied significantly in different genotypes. Among them, twelve genotypes yield embryos successfully, which the rate could reach 71%. Genotype 102 was an ideal material for embryoid induction, and the frequency could reach 32.78 embryos per bud. Genotype that with a highest yield produced 546 times as many embryos as that with a lowest yield. The embryoid induction ability of normal bolting genotypes were higher than easy bolting and hard bolting genotypes.

结果表明：在秋冬季日光温室内，供试植株主花序第一朵花开后第7~14天取样，即初花期是最佳取样时期；不同基因型间小孢子胚胎发生能力差异很大，在接种的17个基因型中，有12个诱导出胚，诱导成功率71%；其中102号产胚量最高，达到32.78个／蕾；在已产胚材料中，产胚量最高的基因型是产胚量最低的基因型的546倍；较易抽薹型材料的产胚能力大于易抽薹型和不易抽薹型。

Key words: anthropotomy and histoembryology; fornix transection; paraventricular nucleus; arginine vasopressin; hypothalamic-pituitary-adrenal axis; neuron

关键 词：人体解剖学与组织胚胎学；穹窿切断；室旁核；精氨酸加压素；丘脑-垂体-肾上腺轴；神经元

Prerequisite Courses: Anthropotomy, Histology and Embryology, Physiology, Pathology, Medical Physics, Internal Medicine, Surgery, Gynecology and Obstetrics, Paediatrics.

先修课程：人体解剖学、组织胚胎学、生理学、病理学、医用物理学、内科学、外科学、妇产科学、儿科学。

Since the embryonic cells possess lower antigenicity and stronger proliferation capability, it is hoped that they can be used as a novel carrier substitute in tissue engineering research.

由于胚胎细胞具有较低的抗原性和较强的增殖能力，期望其能为组织工程研究与应用开辟新的载体材料。

Apolipoprotein D is a member of the lipocalin family. ApoD can bind small hydrophobic molecules such as cholesterol and arachidonic acid, etc. It also plays a role in many physiological and pathological processes such as development and differertiation of embryo, apoptosis of cancer cells, immune defense, and so on.

载脂蛋白D属于脂蛋白家族，和该家族的其它成员一样，其基本功能是转运一些脂类的小分子物质，还参与胚胎的发育、分化；肿瘤细胞的发生、发展和凋亡；免疫性反应；抵抗外界环境胁迫以及神经系统的发生和损伤修复。

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。