核胚細胞 的英文怎麼說
中文拼音 [hépēixìbāo]
核胚細胞
英文
karyoblast- 核 : 核構詞成分。
- 胚 : 名詞[生物學] (初期發育的生物體) embryo
- 細 : 形容詞1 (條狀物橫剖面小) thin; slender 2 (顆粒小) in small particles; fine 3 (音量小) thin ...
- 胞 : Ⅰ名詞1 (胞衣) afterbirth2 (同一個國家或民族的人) fellow countryman; compatriot Ⅱ形容詞(同胞...
- 細胞 : cell; sytes; bioplast; cella; [口語] gene; [生物學] cellule; cellule cellulli cellulo ; cello ; k...
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Antipodal cells the three haploid cells found in the embryo sac of seed - bearing plants that migrate to the chalaxal end of the sac farthest from the micropyle
反足細胞:胚囊三次分裂形成卵細胞,助細胞和極核等,其中位於合點端的三個單倍體細胞稱反足細胞。Blastema in wt consists of sheets of densely packed small blue cells with hyperchromatic nuclei, little cytoplasm and conspicuous mitotic actiity
后腎胚芽由密集排列的片狀小藍色的細胞構成,核染色質粗糙,胞漿稀少,有絲分裂像明顯。The results show that the blastomere nuclei of ? xenopus laevis induces the parthenogenesis of unfertilized egg in ? bufo raddei
根據實驗分析認為,非洲爪蟾的胚胎細胞核進入花背蟾蜍成熟卵后,引起的是花背蟾蜍的單性發育。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。Observation by paraffin section showed that lipeng no. 2 embryo sac mother cells were almost entirely degenerated during megasporogenesis
切片觀察發現,麗? 2號胚囊母細胞在四核期已完全退化。Part 1 : the culture and identification of es - d3 cells and the study of the efficiency of eb formation from es cells when grown on mef feeder layer in es culture medium or cultured in es culture medium supplemented with lif 1000u / ml, es - d3 cells being used in our experiments formed normal clones, expressed akp and kept their normal karyotype over many passages. the in vitro and in vivo differentiation experiments showed that es - d3 cells could differentiate into variety of cell types derived from three primary germ layers
結果顯示: eso3細胞在小鼠胚胎成纖維細胞上和或含白血病抑制因於億f )的es細胞培養液中形成典型的胚胎幹細胞克隆,堿性磷酸酶染色結果為強陽性,具有正常二倍體核型以及具有在體內外分化為三個胚層來源的組織細胞的潛能,而且具有形成種系嵌合動物的能力。Following fertilization the emdosperm becomes and remains multinucleate for some time, becoming cellular near the time of pit-hardening.
受精以後,胚乳變成多核,並繼續存在一個時期,近硬核期時變成細胞狀。These observations show that reprogramming is easier in interspecific embryos reconstructed with es cells than that reconstructed with somatic cells, and that es cells have the higher ability to direct the reconstructed embryo development normally than fibroblast cells. oocytes were reconstructed with outbreeding kunming albino mouse es cells and enucleated rabbit oocytes, and the effects of the passages of es cells and 6 - dmap on the development of interspecific reconstructed oocytes were analyzed. the interspecific reconstructed es - rabbit oocytes were activated either by combined two set electric pulses and 6 - dmap or by two set electric pulses
以上結果顯示, 6 dmap能增加胚胎幹細胞異種重構卵的卵裂率,對重構卵囊胚的發育率影響不大;高培養代數和低培養代數的胚胎幹細胞用於異種核移植不影響異種重構卵的卵裂率和囊胚發育率;用胚胎幹細胞作為供核細胞;比體細胞作為供核細胞所構建的異種重構胚更容易進行重編程,並且胚胎于細胞指導異種克隆胚胎正常發育的能力強于體細胞。Then the zona and polar body of oocytes treated with drug were removed by transferring into the m2 containing 0. 5 % protease. the mouse fetal fibroblast cells were glued to the oocytes memb
該結果與重構胚的體外發育相符,表明正是這些己恢復微組裝功能的化學去核卵母細胞才對其供體核具有重編程的支持能力。Multi - locus dna fingerprint technique was used to check the chimerism of chimeric mouse generated by injecting es cells into blastocysts and to detect whether the chimeric mouse is a germ - line chimeras. the results indicated that : the multi - locus dna fingerprint with a new synthesized probe - jl - 02, has enough polymerism and good stability, and should be very useful to monitor the chimerism in different tissues of es cell chimeric mouse and to check whether an es cell line has the capacity to enter the germ line, especially when involving strains that can not be discerned with coat color or biochemical markers
嘗試應用多位點dna指紋技術,檢測經過胚胎幹細胞es細胞途徑所獲得的嵌合體小鼠中es細胞在各種臟器中的嵌合情況檢測es細胞在嵌合體小鼠中是否實現種系傳遞。結果表明:採用新型的人工合成的寡核苷酸多聚體探針jl - 02探針的多位點dna指紋圖譜,具有足夠的多態性和很好的穩定性。The mice showed also ageing - associated decline in oocyte quality, as indicated by increased frequency of premature chromatid separation, spindle disruption and / or chromosome misalignments in mii oocytes of aged mice. the gv oocytes from aged mice normally matured in vitro. the percentages of pronuclear - stage embryos, 2 - cell embryos and blastocyst derived from mii oocytes of aged mice by in vitro fertilization ( ivf ) were comparable with ones of young mice, but pronuclei formed 1 h later in aged mice than in young mice
老齡小鼠gv期卵母細胞能正常體外成熟;老齡小鼠m期卵母細胞經體外受精后形成原核期胚、 2 -細胞期胚和囊胚的比率與年輕小鼠比較無顯著差異,但原核形成時間延遲1小時;在老齡小鼠卵母細胞,注射牛精子抽提物或sr ~ ( 2 + )處理時所誘發的ca ~ ( 2 + )振蕩以及在減數分裂成熟及早期胚胎中的pkc分佈未發生改變。Using the hprt gene as a positive control, our result suggested that both the testis tissue and the male embryos from which sry transcription can be detected failed to yield any positive results of xist. female embryos at the pronucleus stage and 2 - cell failed to produce any positive result of sry and xist too. while since the 4 - cells period, xist is constantly transcribed until blastocyst stages
然後利用實驗一確定的pcr條件,以hprt為陽性對照,用巢式rt - pcr對小鼠早期胚胎進行xist基因的轉錄分析,結果發現,轉錄sry基因的睪丸組織以及雄性胚胎,從受精卵發育到囊胚的過程中,基本上不轉錄xist基因;不轉錄sry基因的雌性卵母細胞和雌性胚胎,從出現原核開始,到發育至2 -細胞期的過程中, xist基因一直不轉錄,但是,從4 -細胞期開始,一直到孵化前囊胚階段,雌性胚胎都轉錄xist基因。The steady dead generation and time that was caused by the isolated virus was certain by chicken embryo which was inoculated on seven or nine days. the histopathological changs of the infectious stunting syndrom were studied by the way of ordinary paraffin section and he dying. the experimental result were as follows : the test proved that the changes of the chicken embryo were different in different stage. the chicken embryo dead in a week after it inoculated. the body was dropsy and hemorrhage. dead before it hatched out, the embyo body were dropsy, pale and slime. the liver was yellow and swolled, gallbladder ( vesica fellea ) was filled with bile. bursa and glandula thymus analosis. the kindey dropsy. bowel lamina were humble, dilatation. gas and yellow foam were filled the bowel. histopathological changes were that, in early stage, obvious changes of liver and kindey were dropsy, hemorrhage and necrosis. two types eosinophilic intranuclear inclusion bodies including large round and little granular were present in cells of the above organs. the obvious changes of bursa were dropsy, adverse folliiculated growth and little lymphocytes proliferating, 19 - 21 days chicken embryo, one or two big empty vacuoles were prensent in cells of liver and kindey. the number of the folliculi was growing, the vacuoles between cells were larger
膽囊充盈、其內充滿稀薄的膽汁;法氏囊、胸腺萎縮,腸道擴張、腸壁菲薄、內充滿氣體及黃色泡沫狀物;腎臟腫大。病理組織學變化方面,早期肝臟、腎臟、腸主要以出血、水腫和壞死為主,且肝細胞核及腎小管的上皮細胞核內均發現有核內包涵體,包涵體呈嗜酸性,為大型圓形包涵體或不規則的顆粒狀;法氏囊則以水腫、濾泡發育不良、小型淋巴細胞數量增多為主。 19 21日齡雞胚肝細胞、腎小管上皮細胞的胞漿內出現1 2各大的空泡,法氏囊濾泡數目增多細胞間有較大空隙。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。Hi our study, dendritic cells ( dcs ) were derived from the cultivation of peripheral blood monocytes in vitro successfully. then to observe whether dcs transfected with carcinoembryonic antigen ( cea ) - vaccinia recombinant virus ( rv - cea ) can induces cytotoxic t lymphocyte - mediated cea - specific immunity in vitro
體外成功地完成了cd14 +單核細胞來源的樹突狀細胞( dc )的培養,並進一步研究人癌胚抗原重組痘苗病毒( rv - cea )轉染dc后體外誘導的cea特異性細胞免疫。Human bone morphogenetic protein 3 is a member of tgf - b superfamily. lt can induce the differentiation of cartilage and bone tissue in mesenchymal cell. and is important to bone self - repairment and bone development during embryo morphogenesis. in addition, some other biological activities of hbmp - 3 have also been found. such as inducing development of embryo and stimulating differentiation of neural and blood cells. therefore, there is a great prospect in the use of hbmp - 3. there is trace content of hbmp - 3 in human body. it has been expressed in the expression system of eukaryotes and prokaryotes respectively, but its application is restricted because of defects in the process and modification after translation in prokaryotic cells and higher costs and lower yields existed in eukaryotic expression system
人骨形成蛋白3 ( hbmp - 3 )屬于tgf -超家族的一員,可以誘導間充質細胞分化為軟骨和骨,在胚胎時期骨骼發育和骨再生修復中起著重要的作用,而且對胚胎發育過程中中胚層的誘導和分化、造血組織的發育以及神經系統的發育和修復等都起著重要作用,因而hbmp - 3有廣闊的市場前景。它在人體內含量極微,盡管研究人員已經在原核細胞和真核細胞表達系統中分別進行了表達,但是由於原核表達系統缺乏翻譯后的加工修飾,真核表達系統存在成本高、產量低等特點,限制了其在臨床上的應用。Effects of different electrofusion parameters on activation and early development of mouse embryos reconstructed by cumulus cell nuclear transfer
不同電融合條件對小鼠卵丘細胞核移植重組胚融合和早期發育的影響Abstract : six methods for making preparation of chromosomes of spiders, including gonad slice technique, testis squash technique, single embry drop technique, mix embryo - cells drop technique, blood cell drop technique and single embryo - cell squash technique, are summarized in this paper. the karyotypes of 27 species from 22 genus in15 families are analysed
摘要概述了蜘蛛染色體製片的6種方法:生殖巢切片法、精巢壓片法、單胚滴片法、混合胚滴片法、血細胞製片法和單一胚胎壓片法,並總結分析了蜘蛛目15科22屬27種染色體核型。When a pollen grain germinates, a pollen tube pushes its way out through an aperture in the pollen grain wall, and the nuclei migrate into the tube
生殖細胞核分裂,形成兩個僅由細胞核和細胞質構成的精子,其中一個將與卵受精,另一個則與極核融合形成胚乳核。By fluorescence real - time pcr, we found that the expression quantity of jak2 increased along with the development of oocyte we also compared the quantity of jak2 in gv oocytes and 2 - cell embryos nuclear. the quantity of jak2 significantly reduced in 2 - cell embryo nuclear compared with gv oocytes
結果發現,隨日齡的增加, jak2的表達量也隨之增加。本試驗還比較了jak2在gv期卵母細胞和2 -細胞胚細胞核中量的變化。結果發現2 -細胞胚核中jak2的量較gv期明顯降低。分享友人