查询词典 acrosome

Objective To investigate the relationship between ovum fertilization rate and sperm morphology, acrosome reaction in IVF and to explore the influence of parameters of sperm on fertilization rate.

目的 研究体外受精(in vitro fertilization，IVF)中精子形态、顶体反应与卵子受精率之间的关系，分析精子各参数在IVF受精率方面的参考意义。

These data strongly suggest that NYD-SP27 is a physiological inhibitor of PLC that acts as an intrinsic decapacitation factor in sperm to prevent premature capacitation and acrosome reaction.

这些数据有力的表明NYD-SP27是一种生理性的PLC抑制剂，它作为精子内的内源性的去获能因子发挥作用以阻止过早的获能和顶体反应的发生。

During spermiogenesis, the most dramatic morphological changes involve formation of the head and the flagellum, condensation of the nucleus, formation of the acrosome, and elimination of excess cytoplasm as the residual body.

成熟精子的顶体位于精子头部，内含有多种水解酶，在精子成熟、获能和受精过程中起着重要作用，因此研究顶体形成为探索控制生育和不育的机理提供了重要线索。

Objective: To explore the relationship between the acrosome enzyme, hyaluronidase, acid phosphatase,γ- glutamyltransferase in human semen and male infertility.

目的探讨人精液中顶体酶、明质酸酶、性磷酸酶、γ谷氨酰基移换酶与男性不育的关系。

This dissertation is divided into three parts. The first part is studies on calcium distribution changes during spermatogenesis, epididymal maturation, capacitation, acrosome reaction, oocyte maturation and egg fertilization using in situ precipitation by potassium antimonate and Ca〓 fluorescent probes at electron and light microscope levels. The main results are: 1 Ca〓 was probably involved in the condensing process of nucleoplasm during spermatogenesis.

本论文分为三个部分，第一部分主要是采用焦锑酸钾原位定钙法和Ca〓荧光染料在电镜和光镜水平对哺乳动物精子发生、附睾成熟、获能、顶体反应及卵母细胞成熟和卵受精过程中Ca〓的分布变化规律进行了系统的研究。

Targeted deletion of the RIM-BP3 gene in mice resulted in male infertility due to abnormal sperm heads characterized by deformed nucleus as well as detached acrosome.

为了阐明RIM-BP3的敲除引起雄性不育的机制，我们通过亲和纯化的方法寻找RIM-BP3的相互作用蛋白，发现Hook1与RIM-BP3在精子细胞内形成复合物。

The mature sperm has a tail a nucleus containing haploid chromosomes and a front end with an acrosome the storage site for enzymes that will aid fertilization.

成熟精子有尾部，单倍体染色体组，头部有顶体，内部储存酶类，有助于受精。

To make the wapiti sperm capacitated in vitro, we selected and used the method of sperm-up. By making the rate of acrosome reaction as a main index, and the sperm energy, the survial time and the fertilizated rate of wapiti sperm and hamster mature oocytes as auxiliary indexes, it were carried out to compare the effects of wapiti sperm capacitation in vitro under different temperature, different density of pyruvate sodium, caffeine and heparin and different culture medium.

对马鹿精子，使用上浮法诱导其获能，通过对顶体染色测定精子的顶体反应率并作为主要指标，同时以精子活力、精子存活时间和异种受精率为辅助指标，对精子的获能效果进行评价，以比较不同培养温度、丙酮酸钠浓度、咖啡因浓度、肝素浓度以及培养基对马鹿精子体外获能效果的影响。

Objective: To study the oxidation damage of active oxygen to human sperm acrosome and ultrastructure,and study the function mechanism about Cuscuta japonica treating male's infertility and asthenoospermia.

中文摘要：目的：观察菟丝子水提物对活性氧所致人精子顶体和超微结构的氧化损伤的保护作用，探讨菟丝子治疗男性不育弱精子症的作用机制。

The correlation of methods among survival in vitro,specifically acrosome reaction,heterogenetic penetration-egg and hypoosmotic swelling test,of giant pandas semen was evaluated.

利用解冻后的大熊猫冷冻精液，分别进行体外存活试验、顶体反应试验、异种穿卵试验和低渗膨胀试验，并对低渗膨胀试验与其他试验作相关性分析。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了