oocyte maturation 中文意思是什麼

oocyte maturation 解釋
卵母細胞成熟
  • oocyte : n. 【胎】卵母細胞。
  • maturation : n. 【醫學】化膿；（果實等的）成熟；（才能等的）圓熟；（化學纖維的）老化。
  1. Fully grown xenopus oocytes can remain in their immature state essentially indefinitely, or, in response to the steroid hormone progesterone, can be induced to develop into fertilizable eggs. this process is termed oocyte maturation

    介紹：爪蟾卵在成熟過程中可以無限期的停留在未成熟狀態，直到在激素的刺激下，成為可受精的卵細胞，這個過程稱為卵成熟。
  2. During male gametogenesis, the spermatogonia became primary spermatozoa through mitosis, and then became fourth equivalent cytoplasm, round sperm through meiosis. after maturation, they participated in embryo development with the mature oocyte through fertilization. but in female gametogenesis, the primary oocyte formed a matured egg and 1 ~ 3 polar bodies ( pb )

    雄性動物精子發生過程中精原細胞最後一次有絲分裂形成二倍體精母細胞后，經過兩次減數分裂形成了四個含等量細胞質、圓形的精子細胞，最終發育成四個具有正常生理功能的精子，與成熟卵母細胞受精后參與胚胎發育。
  3. Rat cumulus - enclosed oocyte ( ceo ) and denuded oocyte ( do ) both spontaneously resume meiotic maturation in vitro, when cultured for 2h, the germinal vesical breakdown percentage of do reaches up to 88 %, and ceos get 53 %. oocytes begin to extrude first polar body 1 ( fb1 ) when cultured for 8h. mouse oocyte spontaneous maturation in vitro can be inhibited by 4mm hypoxanthine ( hx ) or 25um 3 - isobutyl - methylxanthine ( ibmx ). while, 4mm hx can not inhibit the spontaneous maturation of rat oocyte, and the lowest effective concentration of ibmx to inhibit rat oocyle spontaneous maturation in vitro is 50um. treated with the same concentration of ibmx, gvbd percentage of rat ceo is lower than that of do, the results indicat that cumulus cells delay rat oocyte spontaneous maturation and potentate the inhibition effect of ibmx, but it ' s not the case on mouse

    Ceo和do培養8h時都開始排出pb1 ；在卵母細胞成熟抑制模型中， 4mm次黃嘌呤（ hx ）和25 m的異丁基甲基黃嘌呤（ ibmx ）是小鼠卵母細胞成熟的有效抑制劑，但4mm的hx抑制大鼠卵母細胞成熟效果不理想，用hx - m199和hx - mem培養24h ， gvbd率分別為61 ， 81 ，而ibmx有效抑制大鼠卵母細胞自發成熟的最小濃度為50 m ， ibmx可以降低大鼠ceo和do的gvbd率，但ceo中的卵母細胞gvbd率要顯著低於do的gvbd率， 100 m的jbmx處理24h后，大鼠ceo和do的gvbd率分別為24 ， 84 ，提示卵丘細胞的存在可以延遲大鼠卵母細胞的自發成熟，有助於抑制卵母細胞成熟，但在小鼠上ceo和do的自發成熟差異不明顯。
  4. Hx showed a multiple effect on oocyte maturation

    8 、 hx對卵母細胞成熟具有多方面的影響。
  5. Oocyte maturation involves the activation of various signal trans - duction pathways that converge to activate maturation - promoting factor ( mpf ) ; this is a key activity that catalyses entry into m - phase of meiosis i and meiosis ii

    在爪蟾卵中有大量未被激活的cdc2 - cyclinb復合物，稱為pre - mpf ， pre - mpf在tyr15位脫磷酸變成活性mpf ，起到這個作用的磷酸酶是cdc25 ， cdc25的活性通過磷酸化和細胞位置進行調控。
  6. Fsh ( 50u / l ) can evidently induce the maturation of hx or ibmx inhibited mouse oocyte both in ceo or follicle - enclosed oocyte culture system., but fsh ( 50 - 200u / l ) and lh ( 100 - 10, 000iu / l ) have little effect on rat oocyte maturation in the same culture system as mouse ' s in our research

    在ceo體外抑制和卵泡包被的卵母細胞（ feo ）培養模型中， fsh （ 50u l ）能顯著誘導hx和ibmx抑制的小鼠ceo和feo體外成熟
  7. Because gvs can be exchanged between oocytes of different quality or age, it is expected that gv transfer may be used to solve genetic or developmental anomalies in oocyte maturation, e. g. the increased incidence of aneuploidy in oocytes of women of advanced age

    由於可以在不同質量和年齡的卵母細胞之間進行gv互換，人們期望應用gv移植來解決卵母細胞成熟時呈現的遺傳或發育異常即老齡婦女卵母細胞非整倍體性的增加。
  8. Pu xiaochun, ji weizhi, yang shangchuan, chen jianchun, zuo roujin and shang enyuan 1994 correlation of zona - binding with oocyte maturation and sperm motility in rhesus monkeys by hemizona assay

    普曉春、季維智、楊上川、陳建春、鄒如金、商恩緣1994獼猴卵母細胞成熟度和精子活力與精卵結合的關系。
  9. In this sense, a model is extremely helpful even the model is far from complete and absolutely correct, the model provides a clear working field, based which more meaningful questions may be asked and tried to solved, further works may be done to correct and expand the model till we have a relatively complete view of early oocyte maturation

    Mpf可以激活自身的激活子一cdc25 ，還可以抑制自身的抑制因子一weel ，而活性mpf可以激活cyclin降解系統並導致自身的降解失活pka對mpf的作用。通過a地sejka可以抑制ode25 ，並且激活mytl ，從而間接的抑制mpf的活性，這樣的抑制作用可以被p90rsk逆轉。
  10. As the most common used small experimental animals, rat and mouse have inconsistencys in reproduction, especially in gondonatorpin inducing oocyte maturation. our research was undertook to elucidate which kind of gonadotropins play role in oocyte meiotic maturation, the effects of fsh ans lh / hcg on mouse and rat oocyte maturation in vitro were examined under different culture models

    在體外自發成熟模型中，大鼠的去卵丘裸卵（ do ）自發成熟發生要較卵丘包被的卵母細胞（ ceo ）早， do培養2h時gvbd可達到88 ，而ceo培養2h的gvbd為53 。
  11. These feedback mechanisms often make it difficult to determine the order of e - vents in a signalling cascade, since a small level of mpf activity is sufficient to activate most of the pathways involved in oocyte maturation

    但是，這樣的反饋增加了對爪蟾卵成熟過程的調控機制探索的困難，反饋的存在使得人們不能確定信號傳導的順序。在反饋網路中，很難決定激酶的上下游關系。
  12. In the presence of hx, oocyte maturation to mil and the extrusion of polar body were highly synchronized, the oocytes matured to mil stage were activated in higher rates than oocytes matured without hx, and those oocytes matured exposed to hx for all the 24h showed a high rate ( 55 % ) of spontaneous activation

    Hx存在情況下成熟到m期的卵母細胞排出第一極體時同步化程度高，其孤雌活化能力高於正常成熟卵母細胞， hx作用24h組出現自發激活現象（自發活化比率55 ） 。
  13. In this review, we summarize the distribution in oocyte and functions of the cytoskeleton in oocyte maturation, fertilization and development of normal and nucleus transferred embryos

    本文綜述了細胞骨架在卵母細胞成熟、受精、早期胚胎發育和核移植發育過程中的分佈和作用。
  14. The improvement of culture condition of ivm is essential to achieve better outcome of ivm. during the development of follicles, granulosa cells proliferate and differentiate under fsh control. granulosa cells mediate fsh control on oocyte maturation and secrete several factors to maintain an appropriate rnicroenvironment for oocytes to mature

    卵泡是一個結構和功能單位，其中顆粒細胞是卵泡內主要的體細胞成分，它介導促性腺激素對卵母細胞的調節，同時通過自分泌或旁分泌作用，維持有利於卵母細胞成熟的微環境。
  15. Besides, effect of the amount of cytoplasm on oocyte maturation and early embryo development has also interested many researchers

    此外，細胞質的多少對卵母細胞成熟和早期胚胎發育的影響也引起了人們的注意。
  16. Effect of ethylenediaminetetraacetic acid on porcine oocyte maturation in vitro and subsequent early development after parthenogenetically activation

    供體細胞處理方法對水牛核移植效果的影響
  17. The orientation of jak2 in oocyte during the oocyte maturation was detected and found that jak2 located in nuclear of all development phase of oocyte

    檢測小鼠卵母細胞成熟過程中jak2的定位發現，在小鼠卵母細胞的不同發育階段，其核內都存在jak2 。
  18. To understand the mechanism of oocyte maturation in vitro is of great values in exploring ovary abundant oocyte resources and improving assistant reproduction techonology

    卵母細胞體外成熟調控機理的研究對于開發卵巢中大量卵母細胞的資源，促進輔助生殖技術的提高具有重要的理論意義和應用價值。
  19. The model may be used not only to simulate the process, but also to provide explanations why the process is so ; here we give an explanation of such a process. we showed that pka increased the threshold 0 our model might be used to simulate and explain the normal oo - cyte maturation process, and next, we simulated several experiments and compare results observed in our simulation with those observed in experiments. quantitative models could be well used to simulate kinase activity changes in xenopus oocyte maturation

    模型可以用來模擬這樣的卵成熟的過程，也就說明了這個模型在一定程度上是符合卵成熟過程的真實情況的，但是，如果僅僅是模擬，發揮不出模型的真正作用，模型的作用是讓人們在模擬這樣的卵成熟過程的同時，通過這樣的一個模型工具深人的理解卵成熟的機制我們通過對模型進行分析發現： pka可以升高mpf激活的總的cyclinb閾值，從而使卵停留在gz期
  20. Taken together, these results indicated that an understanding of how in vitro oocyte maturation, in vitro fertilization and embryo culture systems influence both preimpiantation embryo and fetal development should result in systems that consistently produce normal embryos and fetuses

    由此說明，體外受精的胚胎的質量顯著低於體內受精的；體外培養液中同時添加雌激素和孕激素能協同促進小鼠胚胎的體外發育，提高胚胎移植后的發育潛力。
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