精子成熟 的英文怎麼說
中文拼音 [jīngzichéngshú]
精子成熟
英文
sperm maturation- 精 : Ⅰ形容詞1 (經過提煉或挑選的) refined; picked; choice 2 (完美;最好) perfect; excellent 3 (細)...
- 子 : 子Ⅰ名詞1 (兒子) son 2 (人的通稱) person 3 (古代特指有學問的男人) ancient title of respect f...
- 成 : Ⅰ動詞1 (完成; 成功) accomplish; succeed 2 (成為; 變為) become; turn into 3 (成全) help comp...
- 熟 : 熟形容詞1 (植物的果實完全長成) ripe 2 (加熱到可以吃的程度) cooked; done 3 (加工製造或鍛煉過...
- 精子 : [生理學] sperm; spermatozoon (pl spermatozoa); spermium (pl spermia)精子活率 sperm motility r...
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Following with the condensing of chromatin, nucle us gradually elongates and spires. a large number of vesicles turn into glycogen granules behind mitochondria. the mature typical sperm of cipangopaludina chinensis, having monoflagella, consists of a spiral head with only one spiral buddle conformed of nucleus, a spiral middle piece with four s
中國圓田螺成熟典型精子單鞭毛,由頭、中、尾三段構成:頭段螺旋狀,旋束由細胞核構成,僅單股;中段也呈螺旋狀,旋束由線粒體構成,共四股;尾段非螺旋狀,主要由糖原顆粒構成。These maturation changes still occur even when spermatozoa are confined to caput epididymidis by ligatures.
用結扎的方法將精子限制在附睪頭內,這些成熟變化仍可能發生。1992, a novel defensin molecule in the epididymis for sperm maturation science
, 1992 ) 、發現從附睪頭部分泌的一個新防禦素及其對精子成熟的影響( 《科學雜志》Together with the previous findings, the present results suggest that bin1b plays dual role in the epididymis, both as a defensin and a regulator of sperm maturation
兩項研究結果確定了bin1b基因的雙重作用,既是防禦素,同時也能調節精子成熟過程。The period of time after its exuviate is thinner, weigh water crab ; after this flesh gradually plump, the male crab of fat and not the female crab of be fertilized, weigh fleshy crab ; and the female body after be fertilized, after classics fatten is ovarian and mature, " connect body to coagulate fat, red yellow miscellaneous mix, the knot is pomegranate seed ", call cream crab
它脫殼后一段時間比較瘦,稱水蟹;此後肉漸豐滿,肥實的雄蟹和未受精的雌蟹,稱肉蟹;而受精后的雌體,經育肥卵巢成熟后, 「通體凝脂,紅黃雜糅,結為石榴子粒「 ,則稱為膏蟹。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。Background : in - vitro maturation ( ivm ) of human oocytes would be an attractive alternative to gonadotrophin stimulation for in - vitro fertilization ( ivf ). it could avoid the complications of gonadotrophin stimulation and reduce the cost of drugs. however, the efficiency of existing ivm technique is suboptimal because embryos resulting from ivm oocytes exhibit frequent cleavage blocks and low implantation rate
研究背景:近20年來,輔助生育技術有了突飛猛進的發展,體外受精、卵漿內單精子注射技術( intracytoplasmicsperminjection , icsl )和種植前遺傳學診斷技術的成熟標志著人類生殖醫學進入了嶄新的領域,但同時也不能否認,在這一領域中還存在諸如妊娠率低、藥物副作用和多胎率高等問題。Glial cell line - derived neurotrophic factor ( gdnf ) was originally isolated based on its potent and specific ability to promote the survival and morphological differentiation of dopaminergic neurons and motoneurons in embryonic midbrain cultures. in addition, gdnf also support the survival and regulate the differentiation of many peripheral neurons, including sympathetic, parasympathetic, sensory and enteric neurons. gdnf also plays a crucial role outside the nervous system, as a morphogenetic factor in kidney development and as a regulator of spermatogonia differentiation
Gfr 1與gdnf結合位點的研究膠質細胞源性神經營養因子( gdnf )對多巴胺能神經元、運動神經元、感覺神經元、腸道神經元等多種神經元具有促進存活及保護作用,它還能促進腎臟的發育和精原細胞的成熟,因此,極有希望用於治療神經損傷和神經系統退行性病變。Studies on spermatogenesis and oogenesis in palaemon modestus jiang ye - qin ( chemistry department, huzhou teachers coliege, huzhou 313000 ) palaemon modestus belongs to genus palaemon, family palaemonidae, caridea, natantia, decapoda, class crustacean. lt is a kind of freshwater prawn across china and especially abounds in the taihu lake which is regarded as one of the " three delicacies " of the taiha lake. as for the researches on palaemon modestus, v / e can only refer to spermatogenesis of freshwater shrimp exopalaemon modestus ^ ruang hai - xia et al, 2001 ), studies on reproductive biology of exopalaemon modestus l. the structure and development of the male reproductive system ( huang hai - xia et al, 1999 ) and studies on freshwater prawn in the taihu lake ( yan sheng - liang, 1999 ). on the bases of their researches and with the help of tem, i have made further researches on sperm ultrastructure, spermatogenesis, oogenesis and mature oocyte ultrastructure in palaemon modestus
秀麗白蝦palaemonmodestus屬甲殼綱crustacea十足目decapoda游泳亞目natantia真蝦部caridae長臂蝦科palaemonidae長臂蝦屬palaemon ,是我國南北均產的淡水蝦,其中太湖產量尤其大,與太湖銀魚、鱭魚並稱「太湖三寶」 。有關秀麗白蝦的研究僅見秀麗白蝦雄性生殖系統的研究(黃海霞等, 1999 ) 、秀麗白蝦精子發生的研究(黃海霞等, 2001 ) 。本人在前人工作的基礎上,利用透射電鏡技術( tem )進一步研究了秀麗白蝦精子的形態、結構及精子的發生過程,同時還研究了秀麗白蝦卵的發育過程,從卵原細胞到卵黃發生前的卵母細胞、卵黃發生的卵母細胞及成熟卵細胞,各期卵細胞的形態結構特點及各部分結構的變化情況。This soft and vibrant wine displays lifted cabernet berry, spiceand mint aromas. ripe blackcurrant flavours complemented by plummy merlotcharacters, supple tannins and fine structure
這款酒柔和而令人心動的葡萄酒帶有顯著的赤霞珠莓果、香料和薄荷香氣以及成熟黑加侖與梅洛李子般的味道,單寧柔順,結構精美。Except the incomplete maturation of spermatid nuclear and oocyte activation, idendification of a live spermatid is a pivotal procedure. it is difficult to distinguish round spermatids from other round cells such as spermatocytes, monocytes, polymorphonuclear leukocytes and so on
除精子細胞的核蛋白不完全成熟及卵子激活不足等因素外,如何正確選擇存活精子細胞是個難題,如圓形精子細胞與精母細胞、單核細胞和多形核白細胞等其他圓形細胞的區分就比較困難。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。It spend 20 - 21 months from spermatogonial proliferation to spermiation. during this period, sperm live through the winter by storing in lumens at the end of testicular lobular or spermatic duct
在此期間,成熟精子貯存在精巢小葉末端的管腔內或在輸精管內越冬,貯存期為7 - 9個月。E and er are possibly related with metamorphoses of spermatid and sperm maturation
E _ 2和er也可能參與精子細胞的變態和精子成熟的調節。According to the changes of the structure of chromatin and the morphology of cell, the process of the typical spermatogenesis of cipangopaludina chinensis can be divided into five stages : spermatogonium, primary spermatocyte, secondary spermatocyte, spermatid and mature sperm
中國圓田螺典型精子發生時,根據染色質和細胞形態的變化,可將其發生分為以下五個時期:精原細胞、初級精母細胞、次級精母細胞、精細胞和成熟精子。Spermatogenesis start from every june or july, and sperm mature in august or sebtemper
其精子發生從每年的6 、 7月份開始, 8 、 9月份形成成熟精子。In view of its high economic values, the author studied the ultrastructure of the mature sperm and spermatogenesis of cipangopaludina chinensis in order to supply the basic materials of the reproductive biology of cipangopaludina chinensis
鑒于其較高的經濟價值,作者運用光鏡、電鏡和細胞化學方法,對中國圓田螺成熟精子和精子發生的超微結構進行研究,以期為中國圓田螺的繁殖生物學研究提供基礎資料。Professor hsiao - chang chan is a leading authority in epithelial cell - related multidisciplinary research and has contributed significantly to a number of important discoveries, including a cell shrinkage - activated cation channel, a novel defensin molecule in the epididymis for sperm maturation and the role of a cell membrane protein, the cystic fibrosis transmembrane conductance regulator cftr, in fertility and infertility
陳小章教授是上皮細胞相關的跨學科研究權威學者,曾作出過多項突破性科學發現,包括細胞收縮激活的陽離子通道的發現、從附睪頭部分泌的一個新防禦及其對精子成熟的影響以及囊性纖維化跨膜電導調節器在生殖及不育中的角色。How sperm becomes mature in the epididymis remains a puzzle since up still now no gene of epididymis - origin that is involved in the process of sperm maturation has been found despite nearly four decades of search
盡管科學家經過近四十年的探索研究,精子如何在附睪中成熟,至今仍是一個未解之謎,因為到目前為止仍未發現任何來源於附睪的基因與精子成熟過程有關。Professor chan hsiao - chang, director of the research centre, explains, progressive movement of sperm is one of the fundamental changes associated with early process of sperm maturation
上皮細胞生物學研究中心主任陳小章教授指出,運動能力的獲得是精子成熟過程早期的一個基本特徵。分享友人