胚胎期 的英文怎麼說
中文拼音 [pēitāiqī]
胚胎期
英文
embryo period-
Impressive metabolic alternations have been undergone during embryogenesis.
在胚胎發生期間經歷了深刻的代謝變化。The researchers used fast neutrons to irradiate mouse embryos between the blastocyst stage and the beginning of somite formation.
研究人員用快中子照射在胚泡期和體節形成開始之間的小鼠胚胎。The effect of blastomere damage rate on the clinical outcome in frozen - thawed embryo transfer cycles
卵裂球受損對凍融胚胎移植周期臨床結局的影響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 primary results showed : using m199 as diluents containing 20 % bovine serum, it is better to freeze the cells slowly freezing at fist then increase freezing speed ( for example, from 0 to - 6 freezing speed is about - 0. 05 a minute, from - 6 to - 40, freezing speed is about - 0. 5 a minute ), studies on effect of various concentration of dmso demonstrate that about 12. 5 % dmso gave the highest post - thaw percentage of viable cells. the concentration of bovine serum had no different effect on the percentage of the viable embryo cells of misgurnus auguillicaudatus. the embryo cells derived 6 from the later stage of blastula offish is more resistant to the cryogen than the cells of early stage of blastula. the cells preserved in liquid nitrogen at - 196 were thawed and cultivated, a few cells were found adhere to the surface of culture vessel when the percentage of viable cell was more than 30 %. the cells in only two culture vessels were found to proliferated and gave rise to many small morphologically undifferentiated cells
研究初步表明:以細胞培養液m199 （含2既的小牛血清，常規量雙抗）為凍存稀釋液對泥鰍胚胎細胞冷凍保存宜採取先慢后快的方式（例如，從0一一6 ，凍存速度為一0 . 05 / min ，再以一0 . 5 / min的速度從一6一一40 ） ; dmso的保護效應濃度為12 . 506左右;小牛血清的濃度對泥鰍胚胎細胞的成活率影響不明顯;囊胚晚期細胞抗凍性比中早期強;通過對不同批次的凍存細胞解凍培養，解凍后成活率為30 %以上細胞培養數天後均有少數細胞貼壁，但只發現兩瓶培養細胞有明顯增殖現象產生許多未分化的小細胞。The regulating roles of transcription factors in embryonic erythropoiesis
胚胎期紅系造血中轉錄因子的調控作用The first period is the embryonic period ( from around the usa was found to the middle of the 1960s ), the second period is the initial period ( from the middle of the 1960s to the end of the 1980s ), and the third is the flourishing period ( from the end of the 1980s to this day )
筆者將美國擇校制度的發展歷程分為三個階段，即美國擇校制度的胚胎期（建國前後至1960年代中期） 、美國擇校制度的初步形成期（ 1960年代中期至1980年代末期）和美國擇校制度的蓬勃發展期（ 1980年代末至今） 。The digestive tract of animal was not only the important digestive organ but also the biggest endocrine organ which, with a great number of endocrine cells, played an important role in eating, digestion and other physiological activities, and might have regulation effect on the development and differentiation of digestive system of animals
胃腸道不僅是動物體內重要的消化器官，也是動物體內最大的內分泌器官，含有多種內分泌細胞，它們在動物攝食、消化及各種生理活動中具有重要功能，同時可能對胚胎期消化道系統的分化發育起調節作用。Critical phases are the embryonic period ( first part of the pregnancy ) and the first 24 hour after birth
母豬繁殖周期中幾個關鍵的時期包括胚胎期（妊娠初期） ，分娩后24小時。These are normal term infant kidneys. note the fetal lobulations and the smooth cortical surfaces with some attached adipose tissue
正常足月兒腎臟，可見胚胎期腎小葉；光滑的皮質表面有脂肪組織。In the overlap part of the right side of two main faults, the left - lateral strike - slip movement of them in quaternary has formed the embryonic rhombochasm
在兩條主要左行走滑斷裂的右側疊覆區，兩條主斷裂第四紀的左行走滑運動產生一個胚胎期的菱形斷陷。Stem ce11 factor is a multipotent cytokine which is found in recent years, fol1owing research in vitro and in vivo found that scf and its receptors have familiar regu1ation function in mature brain with in embryo and developing period
幹細胞因子是近年來發現的一種多功能細胞因子。近年來研究發現，幹細胞因子（ stemcellfactor ， scf ）及其受體對胚胎期及成年後神經系統生長發育起調控作用，但其作用機制尚不明了。Marie - therese. loones, sandra m. have investigated the developmental expression of heat shock proteins in the nervous system of the unstressed mouse embryo. the results suggested the biological importance of hsps in neuronal differentiation and migration, as well as in cell signaling, protein transport
Marie - therese . loones ， sandram . dsouza分別研究了熱休克蛋白在小鼠胚胎期和出生后的神經系統發育過程中的分佈情況，推測hsps在神經發育過程中可能與神經細胞的分化、遷移以及神經細胞內的信號轉導和蛋白質的運輸有關。In addition, the stomach contained glu - ir cellsn gas - ir cells and vip - ir cells, and the duodenum contained glu - ir cells and gas - ir cells. different endocrine cells varied from one to another in the distribution pattern, the stage of appearance and the number. no glu - ir cell, gas - ir cell or vip - ir cell was found in the oesophagus and no vip - ir cell in the duodenum
另外，胚胎期揚子鱷消化道內分泌細胞的種類和分佈與成體有差異，胚胎期消化道檢出胰高血糖素、胰多肽和p物質免疫陽性細胞，而成體未檢出；胚胎期消化道中胃泌素、血管活性腸肽，生長抑素免疫陽性細胞分佈與成體消化道不同。The ratio of ( s + g2 ) / ( g2 + m + s ) and pi value of mc - 3t3 - el cells increased in the condition of 1um / l e2. the effects of e2 on igfbp - 6 and igf - 2 gene expressions were suppressed by tcdd and ra. the binding of ere at higfbp - 6 5 " - utr ( dna sequence : aactctgacc, + 94 to + 103 ) was enhanced by tcdd
第三部分igfbp一6基因5 』一utr中ere的鑒定及功能分析目的:骨骼組織起源於胚胎期中胚層，維持正常的胚胎期骨骼發育需要多種生長因子、細胞因子和激素的參與，其中雌激素可通過多種途徑作用子中胚層內間This expression vector plbcas - hsa - lgl has the following advantages : i ) the 1. 7kb promoter is able to drive cell - specific and hormone - dependent expression ; ii ) the inclusion of intron - 1 can increase expression level of fusion genes ; iii ) the 5 ' utr of bovine p - casein mrna may have a positive role in both transcriptional and post - transcriptional regulation ; iv ) the gfp gene make the selection of positive clone among embryos possible ; v ) the gfp gene can be easily excised via cre - mediated recombination between the two loxp sites after the expression vector has been integrated into chromosome ; vi ) the two incompatible lox sites, loxp and lox2272, would facilitate cre - recombinase mediated cassette exchange ( rmce ), which in theory will leading to develop a technology of site - specific gene expression in animal mammary glands
該載體的特點是：具有可以調控外源基因在乳腺中特異表達的牛-酪蛋白基因5 `端側翼區和包括第一外顯子及內含子在內的5 `端調控區；將人血清白蛋白cdna準確地置於牛-酪蛋白基因第二外顯子中的翻譯起始密碼子atg之後，而且沒有增加額外的序列和使人血清白蛋白cdna移碼；引入標記基因gfp ，便於在胚胎期鑒定陽性胚胎，減少受體；引入cre lox重組系統： （ ? ）標記基因gfp的兩端的兩個loxp位點可以在表達載體整合到基因組后，刪除標記基因； （ ? ）餘下的一個loxp位點可以和前面的lox2272位點組成cre重組酶介導的盒式交換系統。Fuzzy correlation coefficient and three other existed methods ( pearson, spearman and information entropy correlation coefficient ) were used to analyze three microarray data sets which were about human gene expression during the development of cns in embryonic period. to accomplish the construction of gene expression regulatory network, a program was completed with matlab package
利用matlab工作平臺，進行程序設計，研製一種新的構建基因表達調控網路的軟體，並將已有的三種相關系數和模糊相關系數應用到人類胚胎期中樞神經系統發育過程基因表達數據中，建立調控網路，並對結果進行分析和比較。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