胚內體腔 的英文怎麼說
中文拼音 [pēinèitǐqiāng]
胚內體腔
英文
intraembryonic coelom-
Ranging from 100 to 200 microns across, the width of several human hairs, these microscopic fossils are surprisingly complex and constitute almost a textbook example of a bilaterian, including the three major tissue layers ( the endoderm, mesoderm and ectoderm familiar from high school biology texts ), the presence of a gut with a mouth and anus, and paired coeloms ( body cavities ) surrounding the gut
這些微化石的大小為100 ~ 200微米，相當于幾根頭發的寬度， ?們看起來出奇復雜，而且簡直就像兩側對稱動物的教科書般，展示了各種特徵：包括三個主要的組織層（內胚層、中胚層及外胚層，都是中學生物課本中熟悉的名詞） ，前後連介面部與肛門的腸腔，腸腔外還圍繞著成對的體腔。These orient themselves so that a fluid-filled cavity, the blastocoel, forms inside the mass of cells.
這些細胞進行自我調整，以致在細胞群內部形成一個充滿液體的腔，即囊胚腔。One chimaeric mouse was produced by injection of es cells into blastocyst of c57bl / 6j. the chimaeric rate of fur colour was about 15 %. fl generations of germ - transmission derived from es cell were not obtained when chimaeric mouse mated with kunming albino mice and c57bl / 6j mice
將胚胎幹細胞注射到c57bl 6j小鼠的囊胚腔內，移植后產生了一隻wk2 -胚胎幹細胞的雄性嵌合體鼠，毛色嵌合率為15左右，成熟後分別與c56bl 6j和昆明白雌鼠交配，均未得到來自es細胞的後代。In contrast to murine studies, studies of human hscs have relied on a number of in vitro assays that identify cells with the capacity to generate hematopoietic progenitors in long - term culture and to differentiation into multiple hematopoietic lineages. recently, two elegant animal models that enable the in vivo measurement of human hscs marrow repopulating potential have been developed. one is the sheep in utero transplantation system in which human hematopoietic progenitor cells are transferred into the sheep fetus in utero before the development of the ovine immune system
早在80年代中期， zanjani等就利用胚胎期免疫系統發育不完善，將人的造血幹細胞移植到妊娠中期胚羊腹腔內，成功地建立了人胎羊造血幹細胞嵌合體移植模型，並以此實驗模型作為體內檢測人造血幹細胞和人骨髓間充質幹細胞多向分化潛能的方法。分享友人