查询词典 spermatozoa

The present study is involved in the expression of vitronectin , a ligand of integrin, on human spermatozoa and its role in fertilization; the expression of integrin α〓、α〓、β〓 sbunits on human and mouse oocytes and their relationship with maturation of oocytes; the reorganization of cytoskeletal protein, actin, of mouse oocytes mediated with RGD peptide binding with integrins; the roles and mechanisms of integrins in activation of mouse oocytes as trasmembrane signaling receptors, using the methos of cell culture, immunohistochemistry, flow cytometer, laser confocal microscope.

本课题采用细胞培养、免疫组化、流式细胞术、激光共聚焦显微技术进行以下四个方面的研究：整合素配体玻连蛋白在人精子的表达及其与精子功能状态及受精的关系：整合素〓在人、小鼠卵的表达及其与卵的成熟程度的关系：整合素介导小鼠卵内actin骨架蛋白的重组；整合素介导卵激活的早、晚期事件，包括卵细胞内钙离子浓度的变化及孤雌发育胚的形成，并探讨其机制。

A unique example of sperm cooperation in monotremes is used as evidence that the epididymis produces sperm competition proteins to form groups of 100 sperm into bundles that have a forward motility nearly thrice that of individual spermatozoa.

本文为此提供了证据，证据之一是单孔类动物精子的协作模式。附睾产生精子竞争蛋白，将100个精子集结成束，其向前运动性是单一精子的三倍。

With systeamine pretreatment decreased yields of dominant lethals were obtained in spermatocytes, spermatids and in spermatozoa.

用半胱氨预先处理，在精母细胞、精子细胞和精虫内均可使显性致死突变值下降。

With cysteamine pre-treatment, decreased yields of dominant lethals were obtained in spermatocytes, spermatids and in spermatozoa

用半脘氨预先处理，在精母细胞，精子细胞和精虫内均可使显性致死突变值下降。

Reverse transcriptase-PCR and immunohistochemical analyses show that mGC-G is predominantly expressed from round spermatids to spermatozoa in mouse testis at both mRNA and protein levels.

由RT-PCR与免疫组织染色证实mGC-G的mRNA与蛋白主要表现在睪丸中的精细胞与精子；mGC-G也表现於卵巢中的滤泡细胞与卵。

Sperm storage is a reproductive strategy in bats. Some species of bats can store mature spermatozoa in epididymis or oviducts and uterus for months.

精子储存是蝙蝠的生殖对策之一，有些种类的蝙蝠能将成熟精子在交配前或交配后储存在附睾或者输卵管及子宫内数月。

A contraceptive device consisting of a small thimble-shaped cup that is placed over the uterine cervix to prevent the entrance of spermatozoa.

一种小形杯状的放在子宫口防止精子入内的避孕用具。

These studies demonstrate that the more abundant D form interacts with spermatozoa transiently, possibly with a specific receptor on the sperm surface, consistent with a capacitation-suppressing function during sperm transit and storage in the epididymis, and also confirm a tightly bound population of the E form that could act in the female reproductive tract.

研究证明在附睾中运输和储藏期间，大量的D型CRISP-1与精子瞬时的结合与精子的抑制获能功能相关。D型CRISP-1可能与精子表面的受体相结合。同时也证明了E型CRISP-1与精子的紧密地结合模式可能在雌性生殖道中发挥作用

These studies demonstrate that the more abundant D form interacts with spermatozoa transiently, possibly with a specific receptor on the sperm surface, consistent with a capacitation-suppressing function during sperm transit and storage in the epididymis, and also confirm a tightly bound population of the E form that could act in the female reproductive tract.

研究证明在附睾中运输和储藏期间，大量的D型CRISP-1与精子瞬时的结合与精子的抑制获能功能相关。D型CRISP-1可能与精子表面的受体相结合。同时也证明了E型CRISP-1与精子的紧密地结合模式可能在雌性生殖道中发挥作用→如果您认为本词条还有待完善，请编辑词条

3The effect of cryopreservation on the acrosomal reaction of spermatozoa was analyzed with chlortetracycline staining.

冻存后大鼠精子细胞膜的完整性未受到破坏；精子的线粒体鞘和顶体受到较明显的破坏。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐