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顶体
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  acrosome
    THE RELATIONSHIP BETWEEN SOME IONS AND ACROSOME REACTION OF HUMAN SPERM
    几种离子与人类精子顶体反应的关系
短句来源
    Infection of Ureaplasma Urealyticum and Acrosome Reaction of Sperm
    溶脲脲原体感染与精子顶体反应
短句来源
    Effect of NO on the Spontaneous Acrosome Reaction in AsAb Positive Rat Spermatozoa
    NO对抗精子抗体阳性大鼠精子自发顶体反应的影响
短句来源
    Study of ultrastructure of acrosome in infertile male with SEM
    扫描电镜对不育症精子顶体的超微结构研究
短句来源
    The influence of IgA-antisperm antibody on the sperm acrosome reaction
    IGA抗精子抗体对精子顶体反应的影响
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  acrosomal
    The objective of the present study was to test the effect of Cd in the concentration range from 10 to 1 000 μmol/L, in vitro, on the membrane and DNA integrity, motility, and ability of sperm to undergo acrosomal exocytosis in Holstein bull spermatozoa.
    本文研究的目的是测试Cd在10~1000μmol/L的浓度范围在体外对荷斯坦(Holstein)公牛精子膜和DNA完整性、活动率和精子顶体胞吐能力的影响。
短句来源
    Study of the Changes of Acrosomal Enzyme and Nitric Oxide Synthase,Superxide dismutase of Infertile Patients with Positive Antisperm Antibody in Seminal Plasma
    精浆抗精子抗体阳性不育患者顶体酶、一氧化氮合酶及超氧化物歧化酶活力变化的研究
短句来源
    Results:①Acrosomal integrity of abnormal morphology sperm group was significantly lowerthan that of normal morphology sperm group (P<0.05).
    结果如下:①精子形态异常组精子顶体完整率低于精子形态正常组,两组比较有显著性差异(P<0.05)。
短句来源
    ②Acrosomal integrity of abnormalsemen pH group was significantly lower than that of normal semen pH group(P<0.05).
    ②精液pH值异常组顶体完整率明显低于精液pH值正常组,两组比较有显著性差异(P <0.05)。
短句来源
    ③Acrosomal integrity of abnormal semen volume group was no statisticsdifference in comparison with normal semen volume group (P>0.05).
    ③精液量正常组和精液量异常组精子顶体完整率进行分析,两组之间比较无显著差异(P >0.05)。
短句来源
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  sperm acrosome
    The influence of IgA-antisperm antibody on the sperm acrosome reaction
    IGA抗精子抗体对精子顶体反应的影响
短句来源
    Effects of testis murine cytomegalovirus infection on sperm acrosome reaction and spermatic function of membrane in mice
    小鼠睾丸巨细胞病毒感染对精子顶体反应与膜功能的影响
短句来源
    Objective To explore the influence of IgG-antisperm antibody in seminalplasma on the sperm acrosome reaction (AR).
    目的 探讨精浆抗精子抗体对人精子顶体反应的影响。
短句来源
    In the second part, The sperms which have capacitated, were co-cultured with SNP of different doses. The acrosome reaction by progesterone were determined by means of a flow cytometer. The FITC-PSA was used to stain the sperm acrosome which can radiate green fluorescence at 510~550nm wavelength as excited by 488nm wavelength laser.
    第二部分采用NO 供体SNP 与已获能的精子孵育子后,用孕酮诱发精子顶体反应,利用特异性荧光标记物——络合异硫氰酸荧光素的豌豆凝集素(FITC-PSA)标记精子顶体,该物质在488nm 波长的激光照射下,在510~550nm 处发绿色荧光,通过流式细胞仪检测荧光强度,间接反映标本顶体完整性来观察不同浓度的SNP 对顶体反应的影响;
短句来源
    Golgi apparatus disappeared,acrosome's taking shapewas obstructed in spermatid,and in sperm,acrosome was thin,mitochond-rion in middle-section of spermatozoal tail was denatured,and the amountof SDH was reduced.
    精子顶体薄窄,尾部中段线粒体鞘多变性、缩窄,SDH 反应颗粒减少,甚至消失。
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  “顶体”译为未确定词的双语例句
    A NEW, EFFECTIVE INHIBITOR OF ACROSIN, KF-950
    一种新型高效的顶体酶抑制剂──KF-950
短句来源
    An analysis on influence factor of human sperm acrosin activity of 1077 male infertiles
    1077例男性不育患者精子顶体酶活性及其影响因素分析
短句来源
    Analysis of Influence Factors of Human Sperm Acrosin Activity
    男性不育者精子顶体酶活性影响因素分析
短句来源
    The detection and analysis on acrosin in the sperm of 217 cases of male infertility
    217例男性不育症精子顶体酶检测与分析
短句来源
    The change of semen superoxide dismutase (SOD) and acrosin activity in the sterility of male patients with positive antisperm antibody
    精浆抗精子抗体阳性不育患者顶体酶及SOD活性的变化
短句来源
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  acrosome
These features include defects of mobility, capacitation, and acrosome reactions, which determine full or partial male sterility.
      
complicatalooked like orbicular cells about 2.5 μm in diameter, with no acrosome or tail.
      
poecilosoma show typical ultrastructure features of sperm cells found in most studied nematodes (amoeboid nature and the absence of axoneme, acrosome, and nuclear envelope).
      
conicospermium in the shape of the head and the dimensions and position of the acrosome.
      
japonica, the acrosome is completely embedded in the nuclear fossa and measures 0.7 μm.
      
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  acrosomal
modiolus consists of an acrosome, including an acrosomal vesicle and periacrosomal material, a nucleus, and a middle part with two mutually perpendicular centrioles, surrounded by a ring of spherical mitochondria.
      
Evaluation of the sperm acrosomal status was determined by chlortetracycline (CTC) staining.
      
Spermiogenesis includes nuclear elongation, chromatin condensation, acrosomal and flagellar development, and elimination of excessive cytoplasm.
      
torquatus, including the interaction between spermatid and Sertoli cell, acrosomal granule, subacrosomal granule, and the fibrous sheath formation.
      
Furthermore, we propose that the above three steroidogenic-related genes and the gene of acrosomal reaction as potential biomarkers of testicular toxicity.
      
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  sperm acrosome
A correlation between the structure of the sperm acrosome and that of the egg envelope is discussed.
      
It was found that monoclonal antibody 6B10 can inhibit the sperm acrosome reaction induced by progesterone.
      
The corresponding antigen recognized by monoclonal antibody 6B10 was located on the plasma membrane of the sperm acrosome by indirect immunofluorescent microscopy and immunoelectronmicroscopy.
      
The antigen is a key protein in the sperm acrosome reaction and may be the receptor of progesterone on the sperm acrosome.
      
These results suggest that α-D-mannose residues presenting on pig ZP might be an important component of sperm receptor and might induce sperm acrosome reaction and thus facilitate the sperm penetration into the ZP.
      
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6 testicular biopsies were studied under the light microscope. 2 had taken gossypol (one for 5 months, then stopped for 64 months; the other for 2 years, stopped for 2 years), 2 were infertile, and 2 were normal adults. After comparison with the normal testis results showed (1) After gossypol administration, there was testicular atrophy. Most seminiferous tubules had degenerated and vanished. In some, seminiferous epithelia disappeared, and only empty reticular sertoli cell structures remained. There was proliferation...

6 testicular biopsies were studied under the light microscope. 2 had taken gossypol (one for 5 months, then stopped for 64 months; the other for 2 years, stopped for 2 years), 2 were infertile, and 2 were normal adults. After comparison with the normal testis results showed (1) After gossypol administration, there was testicular atrophy. Most seminiferous tubules had degenerated and vanished. In some, seminiferous epithelia disappeared, and only empty reticular sertoli cell structures remained. There was proliferation of interstitial collagen, degeneration of interstitial cells and small blood vessels, and lymphocytic infiltration; (2) In one of the infertile cases, seminiferous epithelial cells in the seminiferous tubules became loose, thin and disorderly. The basilemma in other seminiferous tubules became thicker and hyali-nized. Spermatogenesis was arrested in the spermatid stage. There was coalescence in some of the and seminiferous tubular cavities. With only some sertoli cells remaining. 2 semen samples from men who had taken gossypol for 0.5-5 years and stopped for 2-7 years were examined under the electronic microscope. Many spermatogenic cells and aberrant spermatozoo were seen. Multiple laminated membranous structures existed in the cytoplasm, and there was mitochondriac vacuolization with non-development of the acrosome and the tail.

用光镜检查服棉酚、不育及正常人(各2例)睾丸活检,结果:不育者睾丸曲细精管管腔闭锁,基膜增厚,透明样变,腔内以支持细胞为主;生精上皮细胞疏松变薄,组合紊乱,并中止于精子细胞阶段。服棉酚者睾丸萎缩,多数曲细精管退化消失,各级生精细胞消失,仅存支持细胞,且呈空网状结构。间质胶原纤维增生,间质细胞和小血管变性,大量淋巴细胞浸润。电镜观察2例服棉酚1和4年后,停药7和1年精液标本。发现精液中生精细胞和畸形精子仍多,但细胞质内多膜层结构,线粒体呈空泡状,顶体和尾部均不发育。

This study describes the effect of NH_4Cl on acrosin activity,acrosome reactions and the fertilizing ability of mouse epididymal spermatozoa.Ammonium Chloride was added to the incubation media of spermatozoa with final concentrations of 1,3,10 and 50mM.After one hour incubation,acrosin activity was tosted by using fixed gelatin membrane method.After two hours incubation,the aorosome reaction was quantitated under electron microscope.The fertilizing ability of sperm was tested by in-vitro fertilization test.The...

This study describes the effect of NH_4Cl on acrosin activity,acrosome reactions and the fertilizing ability of mouse epididymal spermatozoa.Ammonium Chloride was added to the incubation media of spermatozoa with final concentrations of 1,3,10 and 50mM.After one hour incubation,acrosin activity was tosted by using fixed gelatin membrane method.After two hours incubation,the aorosome reaction was quantitated under electron microscope.The fertilizing ability of sperm was tested by in-vitro fertilization test.The results showed that NH_4Cl could obviously inhibit the acrosin activity and acrosome reaction of spermatozoa at higher concentrations≥10mM at a dosedependent manner.The authors suggest that one could search for contraceptives out of those drugs which inhibit the release of lysosomal constituents.

本文从顶体蛋白酶、顶体反应和体外受精三个方面研究了获能前就使用不同浓度的氯化铵对小鼠附睾精子的影响,精子经加有1mM、3mM、10mM和50mM氯化铵的孵育液孵育1小时后,用明胶底物膜法测定顶体蛋白酶活性,孵育2小时后制作电镜标本,观察顶体反应的发生情况,并用体外受精的方法检测精子的受精能力。结果,NH_4Cl在高浓度(≥10mM)时,能抑制小鼠精子的顶体蛋白酶活性和顶体反应,且药物浓度越高,抑制越明显,当NH_4Cl浓度为50mM时才对精子的体外受精能力产生抑制作用。提示从抑制溶酶体内容物释放方面寻找抑制顶体反应的药物作为避孕的新途径是切实可行的。

In this study, thirty fertile and infertile semen sample were used. The acrosomal enzymes of spermatozoa were demonstrated by using substrate film method together with morphological analysis and MEP, The results showed that the site of protease or hyaluronidase activity appeared around the sperm head as clear areas or halos. In infertile men, the percentage of reaction and the average diameter of reaction area of the protease were decreased significantly (p<0.01), but the hyaluronidase did not show marked changes...

In this study, thirty fertile and infertile semen sample were used. The acrosomal enzymes of spermatozoa were demonstrated by using substrate film method together with morphological analysis and MEP, The results showed that the site of protease or hyaluronidase activity appeared around the sperm head as clear areas or halos. In infertile men, the percentage of reaction and the average diameter of reaction area of the protease were decreased significantly (p<0.01), but the hyaluronidase did not show marked changes (p<0.05). The rate of abnormal sperm of infertile men was higher than that of fertile men. The average velocity of sperm movement was similar in the infertile and fertile men, but the percentage of forward progression spermatozoa was much lower in the former. The relation between acrosomal enzymes, abnormal morphology and sperm motility was discussed.

本研究应用健康人和不育症患者的精液各30人份,用底物膜技术检测精子顶体酶,同时进行精子形态学和多次曝光摄片分析。结果表明,在精子头部周围,顶体蛋白酶和透明质酸酶活性区域呈现亮区或晕。不育症患者顶体蛋白酶反应率和反应区的平均直径显著降低(P<0.01),但是透明质酸酶无明显变化(P>0.05).不育症患者精子畸形率高于健康人.不育症患者和健康人精子运动平均速度相似,但直线运动方式的精子在前者明显减少.本文对精子的顶体酶、形态异常和运动等相互关系作了讨论.

 
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