胚發育期 的英文怎麼說
中文拼音 [pēifāyùqī]
胚發育期
英文
period of embryo development-
Abstract : embryos at different developmental stages are obtained by transplanting ? xenopus laevis blastomere unclei to ? bufo raddei unfertilized eggs
文摘:將非洲爪蟾胚胎細胞核移入花背蟾蜍成熟未受精卵后,得到了發育至各期的胚胎。According to the mechanism of block of development in vitro culture on early embryo of mammal and in vivo surroundings of early embryo, the paper states that requirement and utilization of nutrients during each cell stage of early embryo of mammal in vitro culture in order to search for in vitro culture condition and method to improve the development rate of blastosphere
摘要從哺乳動物早期胚胎體外培養發育阻斷機理和早期胚胎的體內環境入手,闡述了胚胎體外培養各細胞階段胚胎對營養物質的需求,尋求合理的體外培養條件和方法,以便提高體外胚胎早期的囊胚發育率。Purpose embryonic stem cells ( escs ) which are from the inner cell mass ( icm ) of preimplantation blastula are pluripotent. neurons are considered as terminally differentiated cells that can not divide nor proliferate after injury
目的胚胎幹細胞( embryonicstemcells , escs )來源於著床前胚胎的囊胚期內細胞團( innercellmass , icm ) ,具有發育全能性。The protein nucleic acid complexes were identified by autoradiography for 48 h. the psg5heo and igfbp - 6 promoter pcat vectors were transfected into cos - 7 cells with iipofectamin2000 ; these cos - 7 cells where treated with 1 jxm e2, with lonm tcdd and with both lonm tcdd and 1 jxm e2, individually ; the cat protein was examined by cat - els a. results : the congenital skeletal defects in fetal rats were induced with 10 - 15ug / kg tcdd or with 100 - 140 mg / kg ra with dosage - dependence effect. the igfbp - 6 mrna in rat calvaria tissue and mc - 3t3 - el cells were increased with tcdd and ( or ) ra, whereas the cell proliferation and igf - 2 mrna in mc - 3t3 - el cells was decreased in the status of e2
結果: tcdd在大鼠胚胎發育時期具有骨骼致畸作用,骨骼發育畸形包括:內翻足、脊柱裂、顱面骨發育缺陷、無尾畸形等;隨著tcdd濃度的升高( 10一15林擴kg ) ,致畸率明顯上升( 14 . 7 %一24 . 6 % ) ; tcdd和ra聯合用藥可以增強對大鼠骨骼發育的致畸效應; e :對成骨細胞內igf一2基因有正性調節作用,對igfbp一6基因有負性調節作用, tcdd可以抑制e :對細胞內xgf一2和igfbp一6的調節作用。Chordates are bilaterally symmetrical, triploblastic, segmented coelomates which demonstrate a deuterostomic pattern of early embryonic development
脊索動物兩側對稱、三胚層,分節的體腔,在胚胎發育的早期過程中,顯示為后口類型。Colugos resemble marsupials in that their young are born early in embryonic development
像有袋動物一樣,貓猴的寶寶在胚胎發育早期就出生。During development of the seedling, the hypocotyl forms the lower portion of the stem from the radicle up to the cotyledons.
在幼苗發育期間,下胚軸從胚根到子葉的莖的下部形成。The early embryo were made into a series of continuous section slides by tissue cutting. the sections were stained by hematoxylin and eosin ( h & e ) staining and then the development of internal organs such as heart in early embryos was observed by microscope. we found that there is certain relationship between external and internal malformation
同時我們收集人類藥物流產的早期胚胎,觀察發現胚胎畸形佔17 . 86 % ,早期致死佔32 . 54 % ;採用組織切片技術將胚胎製成一系列石蠟連續切片,染色后顯微觀察畸形和正常的早期胚胎內部心臟等器官的發育情況,發現胚胎外部畸形與體內畸形存在一定關聯,對此我們將做進一步的研究。During organogenesis such as formation of nervous system, angiogenesis, etc the cell mechanisms involved are similar to those of carcinogens, such as cell proliferation, differentiation, migration, etc. and there is no shortage of embryos
利用斑馬魚生物特性體外受精胚胎透明發育期短,可做為經濟且快速的藥物組織特異性篩選系統。There were no significant difference in fusion rate, cleavage rate and blastocyte development rate with different enucleation time of oocytes during ivm16 - 24h ( p > 0. 05 )
在體外成熟16 24h期間,水牛卵母細胞去核時間的不同對核移植后的融合率,分裂率和囊胚發育率沒有顯著影響。The age of human development is counted from the day of fertilisation. by the eighth week, all essential internal and external structures of the embryo have appeared and the embryo can be detected with ultrasound
八周大的胚胎胚胎的發育期以受精當天計算。胚胎到了第八周,所有重要的內部和外部器官都已形成,可用超聲波測到。The age of human development is counted from the day of fertilisation
八周大的胚胎胚胎的發育期以受精當天計算。Following the embryonic stage of development
胚胎後期的在胚胎發育期之後的For organs to form during embryonic development, some cells must commit suicide. without such programmed cell death, we would all be born with webbed feet, like ducks
對胚胎發育期間形成的器官來說,部分細胞必須自絕生路。如果沒有這種程序化細胞死亡,我們生下來都會像鴨子一樣有帶蹼的腳。The fertilized eggs were observed under the anatomical microscope in different time to record the developmental stages and to describe the morphological changes
對受精后不同發育期胚胎進行連續取樣,在解剖鏡下進行觀察,紀錄其具體的發育時段和形態變化。During embryogenesis, capillaries develop in the fetus by neovascularization, where endothelial cells arise from progenitor cells ; and angiogenesis, in which new blood vessels sprout from old ones
在胚胎發育期,胎兒通過新血管化過程(其內皮細胞源於祖細胞)和新生血管形成過程(新血管由舊血管芽生而來)生成毛細血管。Effects of embryonic developmental stages in vitro from fertilized eggs in chinese mitten crab eriocheir sinensis on larva rearing
不同發育期中華絨螯蟹胚胎離體孵化和幼體培育的研究One corresponded to the period of c6 in which there were some preparations for forming embryonic calli, the other corresponded to the embryogenetic stage. in the conversion of embryonic calli, the lowest threshold value of total protein content in embryonic calli was 11. 5 + 0. 5 ug / mg fw
它們分別對應于體細胞胚發生過程中胚性愈傷形成的準備期( c _ 6期)和胚狀體發育期( e _ 1 e _ 5 )兩個關鍵時期。In order to know if the genetic constitution of recipient oocytes influenced the development of embryos reconstructed from es cell, oocytes of c57bl / 6j and kunming albino were used as recipient, respectively
為了了解受體卵的遺傳內涵是否對胚胎幹細胞重構胚發育也會產生影響,分別以c57bl 6j和昆明白小鼠的m期去核卵為受體,構建胚胎幹細胞重構胚。The t1 - weighted and ^ - weighted magnetic resonance imaging ( mri ) have been used to study the morphogenesis of chicken embryo and other contains in the egg during the earlier hatching process. t2 values of amniotic fluid, yolk and egg white have been measured by the means of multi slice multi echo ( msme ) sequence. in - vivo " h magnetic resonance spectroscopy ( in - vivo * h mrs ) has been used to analyze the ingredients of amniotic fluid, yolk and egg white
用核磁共振成像( magneticresonanceimaging , mrl )中ti加權、 2加權成像的方法在無損的條件下對雞胚發育過程中的形態結構變化進行了研究,得到了胚胎及蛋白、蛋黃等在胚胎發育的早期結構變化的圖像,並用多片多回波( multislicemultiecho , msme )的方法測定了它們中質子的r2值,為研究胚胎的發育過程提供了有價值的參考。分享友人