目的探讨瘦素在体外对小鼠着床前胚胎发育的影响。
Objective To investigate the effects of leptin on development of mouse preimplantation embryos in vitro.
结果表明：早期卵裂环境影响小鼠植入前胚胎GCN5和HDAC1表达。
Those results show the early cleavage environment influence GCN5 and HDAC1 expressions in mouse preimplantational embryos.
采用小鼠早期胚胎的体外培养技术，研究了久效磷对小鼠着床前胚胎发育的影响。
In this paper, we have studied effects of monocrotophos on the development of preimplantation mouse embryos cultured in a simple defined chemical medium.
这种称为着床前胚胎遗传学诊断的方法包括从仅含有约8个细胞的胚胎组织中分离单个细胞。
Called preimplantation genetic diagnosis, it involves taking a single cell from an embryo when it contains only eight or so cells.
胚胎干细胞是来源于附植前胚胎的内细胞团或附植后胎儿的原始生殖细胞具有发育全能性的细胞。
Embryonic stem cell is a kind of undifferentiated pluripotent stem cell, which stems from pr Eimplantation ICM or early fetus primordial germ cell.
研究这些调控因子在着床前胚胎发育中的表达模式和调控机制，将有助于我们对早期胚胎发育机制的进一步了解。
The study of the expression pattern and regulation mechanism of these factors in early embryo development would help to further understand the mechanism of early embryogenesis.
方法应用嵌套式逆转录聚合酶链反应技术检测印记基因p57kip2、LIT1、TSSC3在人类卵母细胞及植入前胚胎的正常表达。
Methods Using nested reverse transcription-PCR to analyze the expression of P57KIP2, LIT1, TSSC3 in human oocytes and preimplantation embryos.
近一个世纪前，生物学家发现，如果他们在无脊椎动物胚胎生命的早期阶段将其分成两部分，它会存活下来并发育成两个正常的胚胎。
Nearly a century ago, biologists found that if they separated an invertebrate animal embryo into two parts at an early stage of its life, it would survive and develop as two normal embryos.
山羊胚胎重新反应了系统进化的过程，该过程通过前肾，中肾和后肾。
The goat embryo re-acted the process of the system evolution, which passed through pronephros, mesonephros and metanephros.
前马萨诸塞州州长罗姆尼反对使用从生育诊所得来的胚胎。
Former Massachusetts Gov. Mitt Romney opposes using embryos from fertility clinics.
一年前，黄博士在《科学》杂志上发表论文，宣称他已使用胚胎干细胞克隆出了人类胚胎，这在当时激起了一片兴奋。
Dr Hwang provoked a flurry of excitement a year ago when he published a paper in Science that claimed to have cloned human embryos from embryonic stem cells.
三年前，英国从美国首次进口了克隆牛的胚胎，但并无官方组织对这些克隆牛的后代进行持续检测。
Embryos from cattle cloned in the US were first imported three years ago, but no official checks have been kept on their offspring.
那些携带灭活基因的胚胚胎干细胞经分离出来后注入称作胚泡的胚前组织中。
Those ES cells carrying the inactivated gene can then be isolated and introduced (by injection) into a pre-embryonic structure called the blastocyst.
因为前三个月胚胎很容易受到伤害，许多医生都建议你在那段时间里不要染头发。
Since the first trimester is such a vulnerable period for the embryo many doctors also advise against coloring your hair during that time.
五年前，这个公司曾鼓吹其培养了克隆的人类胚胎。
Five years ago it announced with a fanfare that it had grown cloned human embryos.
胚胎植入前的诊断。
研究人员在发现了一个3.8 亿年前的标本还保有一个连着脐带的胚胎，由此得出了这一结论。
Researchers made this connection after discovering a 380-million-year-old female specimen that still retained a single embryo connected by an umbilical cord.
而十年前就开始此项努力的ViaCyte公司，则把目光放在了胚胎干细胞上。
ViaCyte, which began its efforts more than 10 years ago, has focused on embryonic stem cells.
例如，未分化的胚胎干细胞可能形成肿瘤，如果在移植前细胞未全部成功分化，将可能造成癌症。
Undifferentiated es cells can form tumors, for instance, creating a risk of cancer if the cells are not all successfully differentiated before transplantation.
肠胚胎的消化管，包括前肠，中肠和后肠。
The embryonic digestive tube consisting of the foregut the midgut and the hindgut.
在有些中心做胚胎植入前遗传诊断(PGD)筛查遗传病。
Preimplantation genetic diagnosis (PGD) is performed at some centers to screen for inherited diseases.
如果取卵前取消了治疗周期要花多少钱？如果胚胎移植前取消治疗周期又要花多少钱呢？
How much do I pay if my treatment cycle is canceled before egg recovery? Before embryo transfer?
对中国对虾胚胎在低温保存前的预处理过程中，抗冻剂溶液的毒性和渗透性进行了实验研究。
The Chinese prawn embryos in several developing stages are exposed to vcarious cryoprotective agents (CPA) brine solutions for toxicity and permeability study.
即使是克隆不那么高等的动物(例如绵羊、兔子和狗)，科学家们也投入了好多年的心血，而且在成果出来前耗费了无数的卵细胞和无数的畸形胚胎。
Even the cloning of less-complicated creatures — from sheep to rabbits and dogs — required years of tweaking, and lots of wasted eggs and deformed fetuses, before it worked.
实验室通过运用PGD技术可在胚胎移植前确定胚胎是否受到遗传影响。
PGD allows the laboratory to determine prior to implantation which embryos are likely to be affected or unaffected by a particular genetic condition.
它是由胚胎时的前三个神经原节愈合而成的。
It is formed by the coalescence of the first three neuromeres in the embryo.
BBC的科学记者认为此项研究由于牵扯到前体细胞来自于正在成长的胚胎而引起的道德问题而被搁置。
The BBC science reporter says research so far has been hampered by ethical issues surrounding stem cells to rive from specially grown human embryos.
该公司“有信心”在明年二月份前完成四个月的申请流程，获得人类受精与胚胎管理局的批准。
Thee company is "confident" it will complete the four-month application process for HFEA approval by next February.
该公司“有信心”在明年二月份前完成四个月的申请流程，获得人类受精与胚胎管理局的批准。
Thee company is "confident" it will complete the four-month application process for HFEA approval by next February.
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