使发育

To investigate effect of sympathetic nerve on early development of embryo, a model of sympatholytic mice was established by 6-OHDA.

为了研究交感神经对哺乳动物早期胚胎发育的影响机制，通过腹腔注射6-羟多巴胺使交感神经阻断后，观察了小鼠妊娠前期胚胎早期发育和肥大细胞数量和型别的变化。

Two mode of plastid inheritance, uniparental maternal and biparental inheritance, were discovered in angiosperms at the beginning of this contury, and our knowledge of the mode and cytological basis of cytoplasmic inheritance, esp. plastid, has been improved in many respects following the new cytological and molecular techniques, eg. electron microscopy, DNA fluorescence and RFLP.

近几年由于电镜、DNA的荧光检测及RFLP等新的细胞学和分子生物学技术的发展，使对植物细胞质遗传形式及其细胞学基础有了一定的了解，但多是单一的方法或对雌、雄配子发生、发育个别发育时期研究的结果，对大部分植物种的质体遗传方式或细胞学基础仍不清楚，在有些植物种间应用不同的研究方法得出的结论也不一致。

Herpes simplex virus infection to the fetus through the placenta, pregnancy first 8 weeks of infection and occurrence of fetal malformations can generally mainly small head, small eyes, chorioretinitis, crystal turbidity, heart abnormalities, limb abnormalities, intrauterine growth retardation, cerebral dysgenesis, hydrocephalus, corneal cataract formation of the liver, splenomegaly, pneumonia and so on. 2, diagnosis:(1) direct examination, electron microscopy examination herpes fluid, can be found herpes virus-like particles.

单纯疱疹病毒通过胎盘传染给胎儿，妊娠头8周感染可使胎和发生畸形，一般主要为小头，小眼，脉络膜视网膜炎，晶体混浊，心脏异常，肢体发育异常，宫内生长迟缓，脑发育不全，脑积水，角膜翳形成肝，脾肿大，肺炎等。2、诊断：(1)直接检查，用电镜检查疱疹液，可发现疱疹病毒颗粒。

Thus gp130 is the common signal transduction molecule. Gp130 molecule expresses universally on many tissues including immune system, hemapoietic system, and nerve system. Gp130 has an essential role in the function and regulation of the above systems, especially in the development of hemapoietic system. The signal transduced by gp130 is necessary during the differentiation and proliferation of hemapoietic cells. It is evidenced that the embryo of gp130 gene-knockout mouse was dead due to a serious impediment of the development of hemapoietic system.

Gp130在人体组织细胞上广泛性表达，介导和调节机体的免疫、造血以及神经系统的生理功能，尤其是在造血系统的发育过程中，具有极其重要的作用，动物实验表明，敲除小鼠的gp130分子基因可以使其在胚胎的早期阶段产生严重的造血系统障碍，最终导致流产，由此表明在造血细胞的分化、发育和生物学行为中，gp130介导的信号是必不可少的。

During the treatment of skeletal Class ill malocclusion in mixed dentition, the reverse Twinblock could procline the upper incisor, accelerated the development of maxillary and mandibular ramus, and restrained the development of mandibular body. A randomly allocated prospective study was required to fully evaluate the bone efficacy of this appliance.

反向Twinblock矫治器可使上切牙唇倾、位置前移；在治疗期间能促进上颌骨的发育，抑制下颌体的发育，促进下颌升支的增高；反向Twinblock矫治器的对上下颌骨的长期作用有待进一步研究。

Data were analyzed from photographs from optical microscopy and Computer Image Analysis.Results:Gene expression level of bcl-2mRNA (numeric density and concentration of bcl-2 immunopositive neurons) in layer Ⅲ of the ipsilateral visual cortex area 17 and the laminas receiving ipsilateral geniculate input from the strabismic and deprived eyes are significantly lower than the input from the untreated eyes.

MS1和MD1组幼猫实验眼同侧视皮质17区Ⅳ层及同侧外侧膝状体Al层神经元在视觉发育敏感期内，由于长期的斜视及形觉剥夺效应以致功能低下，对Bcl-2调节的敏感性降低，以及对NTs的营养保护及上调Bcl-2 mRNA表达水平应答能力降低，在双眼竞争的神经元发育及突触连接中处于劣势，使对侧眼形成优势循环。

The function of sustentacular cells was found in two aspects: one was sustentacular, which made a suitable place for the development of spematogenic cells, another was nutritive, which supplied materials and energy for the development of spermatogenic cells.

支持细胞的作用包括两个方面：一为支持作用，使生精细胞有一个适宜的发育场所；二为营养作用，为生精细胞的发育提供足够的物质和能量。

These results suggest that in the central nervous system of small mammals, AP waveforms mature rapidly in many types of neurons, thus, coordinated activities in neuronal circuits may occur. In early postnatal development, GABA receptor mainly mediates an excitation effect, depolarizes P6 MGBv neurons and dramatically increases the frequency of AP firing. Inhibition of GABA receptor matures slowly along with increment of postnatal days.

结论大鼠MGBv神经元的AP波形成熟较快，可在中枢神经系统的神经元环路中产生协调性的活动；在MGBv神经元发育早期，GABA主要作为兴奋性神经递质而发挥作用，它可使P6的MGBv神经元产生去极化，AP发放频率显著增加，随着出生后日龄的增加，GABA受体的抑制作用才逐渐发育成熟。

Following chemical activation, blastocysts rate of the treated oocytes was similar to untreated oocytes.8 Following fertilization, however, few oocytes inhibited with CHX developed into morulae/blastocysts, due to a high incidence of polyspermy.9 Cortical granule migration occurred during inhibition, but CHX inhibition impaired CG migration, significantly no oocytes inhibited by CHX completed CG migration after maturation.10 CHX inhibition had no effects onα-microtubles and microfilaments of goat oocytes.

抑制24h转为正常培养24h，不影响卵母细胞的成熟和孤雌激活能力，并且CHX抑制后再成熟的卵母细胞经孤雌激活发育到囊胚的比例与对照组卵母细胞相似。8、体外受精后，CHX抑制后再成熟卵母细胞的多精受精现象显著增加，发育到桑椹胚/囊胚的比例显著低于对照组。9、CHX抑制过程中皮质颗粒仍能发生迁移，但是CHX抑制会对皮质颗粒的迁移造成不可恢复的损伤，使再成熟的卵母细胞内皮质颗粒不能完全迁移。10、CHX抑制对山羊卵母细胞α-微管和微丝都没有影响，无论是抑制后处于生发泡期的卵母细胞，还是抑制后再成熟的卵母细胞，微管和微丝的分布都与对照卵母细胞相似。

To induce diploid gynogenesis in summer flounder, eggs were fertilized with heterogenous cryopreservative sperm of Lateolabrax japonicas , which was irradiated with UV ray to be genetically inactivated, and cold shock was used to prevent extrusion of the second polar body.

中文摘要：用冷冻保存的花鲈精子作为异源精子，采用紫外线对精子进行照射使其遗传物质失活，然后与卵子进行&授精&，可以刺激犬齿牙鲆鱼卵进行雌核发育，在受精后一定时间采用冷休克处理&授精&卵，抑制第二极体排出成功获得了犬齿牙鲆雌核发育二倍体鱼苗。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。