An endodermal sinus tumor ( yolk sac 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(卵黄囊肿瘤)由原始生殖细胞构成,这些细胞形成血管球或胚芽样结构。
Effect of Egg Yolk Phosphatidylcholine on Recovery of Freeze-dried Red Blood Cells 蛋黄卵磷脂对冻干红细胞恢复率的影响
A yellow phospholipid found in egg yolk and in many plant and animal cells; used commercially as an emulsifier. 一种黄色的磷脂,见于蛋黄和许多植物动物细胞中,商用作乳化剂。
Investigation of Murine Yolk Sac Multipotent Mesenchymal Stem Cells Combined with Collagen Surface-Modified CPC in Vitro 小鼠卵黄囊间质干细胞多向分化潜能及其体外复合胶原表面改性CPC的实验研究
Effects of Col ⅰ/ CPC on the growth and expression of BMP-2 of murine yolk sac mesenchymal stem cells in vitro 胶原表面改性CPC对小鼠卵黄囊间质干细胞体外生长与BMP-2表达的影响
Results: There was strong characteristic apoptotic DNA ladder in yolk sac cells in embryopathic offspring from experimentally induced diabetic rats, and activities of ERK1/ 2 were dramatically decreased ( group 2). 结果:第2组中,卵黄囊细胞出现细胞凋亡特征性的DNALadder,与正常对照组相比ERK1/2蛋白激酶活性显著下降;
Conclusion The committed differentiation from yolk sac stem cells to CFU GM is affected by many factors. 结论:卵黄囊干细胞具有向cFUGM分化的能力;
The activity of RNA and DNA of follicular cells are especially active during yolk formation period. So it is considered that some material which is synthesized and secreted by follicular cells joins the formation of livetin. 滤泡上皮细胞在卵母细胞的卵黄形成期,其RNA和DNA活动尤其活跃,因此认为滤泡上皮细胞合成分泌了一些物质参与卵黄蛋白的形成。
During human and fetal development, yolk sac, fetal liver, spleen and bone marrow give birth to blood cells in turn. 在胚胎与胎儿期,依次由卵黄囊、肝、脾、骨髓完成造血;出生后,骨髓成为主要的造血场所。
Embryo encircled 3/ 4 of the yolk, dorsal to the embryo is a row of cuboidal cells, the spinal cord floor plate. This plate is ventral to the neural tube. The floor-plate extends anteriorly to the hindbrain. 胚体绕卵黄3/4时,位于脊索背部和神经管腹面的一排立方体细胞称为脊髓底板,并一直延伸到后脑的前端。
Embryo encircled the yolk, the primordial germ cells are near the back-gut. 胚体绕卵黄将近一周,原始生殖细胞出现在胚体后肠附近。