中胚层

The syndrome seems to result from disturbances of the caudal mesoderm before the fourth week of gestation. This includes the caudal cell mass and the cloaca, what explains the associated anomalies of the genitourinary tract (24%) and lower gastrointestinal tract.

本病是妊娠第4周之前尾部中胚层的紊乱所致，包括马尾细胞团和泄殖孔，这解释有24％的病例伴有泌尿生殖道畸形和下胃肠道畸形。

Cumulative data have been documented that mesenchymal stem cells can differentiate into osteoblasts, chondrocytes, adipocytes, tenocytes, myotubes, neural-like cells, hematopoietic-supporting stroma and other non-hematopoietic cells derived from mesoblast or ectoblast.

大量研究表明，体外培养的骨髓间质干细胞在合适的诱导条件下，可分化为成骨细胞、成软骨细胞、脂肪细胞、成肌细胞、成腱细胞和神经元样细胞等多种非造血组织特别是中胚层和神经外胚层来源的组织细胞。

The differentiation and fusion of cells may be therefore the two essential ways for the BMDSCs to change their phenotypes from mesoderm to ectoderm.

细胞转分化和细胞融合有可能是中胚层来源的BMDSCs向神经外胚层细胞变化的两种必要机制。

BACKGROUND: The basic fibroblast growth factor has the obvious promotion function of multiplication of the mesoderm and nerve ectoderm cells, and has the indirect ossification to the bone marrow-derived mesenchymal stem cells.

背景：碱性成纤维细胞生长因子对来源于中胚层和神经外胚层的细胞具有明显的促进增殖作用，对骨髓间充质干细胞具有间接的成骨作用。

Fibroblast growth factor signaling guides mesodermal cell migration; however, we found some directed dorsal migration in an FGF receptor mutant, which suggests that additional signals are involved.

显微元细胞增长因子信号知道着中胚层的细胞迁移；但是，研究人员发现在突变FGF受体中存在着定向的背离迁移作用，这说明有更多的信号参与到了细胞的运动当中。

Lineage-tracing analyses indicate that the ectopic endothelial cells in embryos with decreased Notch activity originate from mesodermal cells that normally produce erythrocyte progenitors.

命运追踪结果显示，Notch降低的胚胎中，异常增加的内皮细胞是来源于本应该形成红细胞前体的中胚层细胞。

In addition to this main pathway, howeer, ECs also can be generated from the EGFR-2–PDGFR-+ single-positie population, which represents the paraxial mesodermal lineage and is also deried from the DP population.

除这条主要途径外，内皮细胞也可从EGFR-2+PDGFR-+单阳性群体中得到，这种单阳性群体在近中胚层出现，并也来自于双阳性群。

The embryonic development of Cynoglossus semilaevis was observed with tissue slice method. Notochord, optic vesicle, mesoderm, spinal cord floor-plate, neural tube, gut, otic vesicle, brain, oropharyngeal membrane and tubular heart of C.

对半滑舌鳎 Cynoglossus semilaevis 胚胎发育进行了组织学观察，首次描述了半滑舌鳎胚胎发育过程中脊索、眼囊、中胚层、脊髓底板、神经管、肠、耳囊、脑、口咽膜和心管等组织结构。

The embryonic development of Cynoglossus semilaevis was observed with tissue slice method. Notochord, optic vesicle, mesoderm, spinal cord floor-plate, neural tube, gut, otic vesicle, brain, oropharyngeal membrane and tubular heart of C.

中文摘要：对半滑舌鳎 Cynoglossus semilaevis 胚胎发育进行了组织学观察，首次描述了半滑舌鳎胚胎发育过程中脊索、眼囊、中胚层、脊髓底板、神经管、肠、耳囊、脑、口咽膜和心管等组织结构。

The imaging characteristic of each type were also analyzed.

结果：14例中不含脂肪的错构瘤8例、平滑肌瘤2例、多囊性肾瘤2例、海绵状血管瘤1例、中胚层肾瘤1例。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失