查询词典 embryo

Methods The embryo calvarial periosteum tissue was taken and, human osteoblasts were obtained by enzyme-assimilating methods. The morphological change, growth feature and osteogentic capability of osteoblasts were observel during culture in vitro, drew the growth curve was graphed and the cells was identified by alkaline phosphatase dye. At the same time, the morphology and bioactivity of 3 to 5 th-generation osbeoblasts and anabiotic cells were studied comparatively.

取人胚胎颅骨骨膜，采用酶消化法获取成骨细胞体外培养并传代，观察细胞形态，生物特性，绘制生长曲线，并经碱性磷酸酶染色鉴定成骨细胞以及比较冻存前3~5代与冻存后成骨细胞的特点。

The authers fetched the embryo calvarial peristeum tissue, got human osteoblast by enzyme-assimilating methods and tissue-block culture methods. We observed the morphological change, growth feature and osteogentic capability, of osteoblast during culture in vitro with phase contrast invert microscope, drew the growth curre and identified the cells by alkaline phosphatase dye. At same time, the morphology and bioactivity of 3-5th-generation osbeoblast and anabiotic cells was studied comparatively. 2. titanium particles were examined by scanning electron and the size was determined by semi-automated image analysis. The 3-5 th gereration of human osteoblast were cultured in medium with different concentration of particulates titanium alloy (1mg/ml, 0.1mg/ml, 0.01mg/ml). Cell growth and proliferation was detected by MTT method after 2、4、6 days that particles were added into medium and ALP activity was measured by kit after 4、7、10 days respectively. 3. With above same methods,the 3-5th generation of human osteoblasts were cultured for 3、6、9days after different concentration of particulates titanium alloy (1mg/ml, 0.1mg/ml, 0.01mg/ml) were added into the medium and OPG gene expression was quantified by RT-PCR.

1、取人胚胎颅骨骨膜，采有用酶消化法和组织培养法获取成骨细胞体外培养并传代，观察细胞形态，生物特点及成骨特性，并绘制生长曲线同时碱性磷酸酶染色鉴定成骨细胞以及比较冻存前3-5 代与冻存后成骨细胞的特点。2、电镜下观察钛合金颗粒的形态并测量其粒径，将不同浓度的钛合金颗粒(1mg/ml，0.1mg/ml，0.01mg/ml)与成骨细胞共同培养，分别于第2、4、6 天用MTT 法测量细胞增殖情况及4、7、10天用试剂盒检测碱性磷酸酶活性。3、分别将不同浓度的钛合金颗粒(1mg/ml，0.1mg/ml，0.01mg/ml)与成骨细胞基因培养3、6、9 天用RT-PCR 方法半定量测定骨保护素基因mRNA 的表达。

However, to our knowledge, the ability of the embryo antigen-specific anergic T cells to suppress maternal immune responses to the allogeneic fetus in vivo has been less known.

我们既往研究证实，于孕早期干预B7-1/B7-2协同刺激信号后，与自然流产模型孕鼠相比，正常妊娠模型及孕早期干预协同刺激信号的耐受诱导模型外周CD4+CD25+ T细胞的比例显著升高。

BACKGROUND: Compared with adult mesenchymal stem cells, yolk sac-derived MSCs of early embryo have stronger self-renewal capacity and plasticity. Moreover, they could differentiate into angioblast and hemopoietic stem cells during embryonic development and trigger embryonic angiogenesis and hemopoietic tissue development.

背景：与成体间充质干细胞相比，来源于早期胚胎的卵黄囊间充质干细胞有更强的自我更新能力和可塑性，且在胚胎发育过程中可分化为成血管细胞和造血干细胞，启动胚胎血管发生和造血组织发育。

College of Animal Sciences, Zhejiang University, Hangzhou 310029, ChinaAbstract: In vitro chicken embryo hepatocytes were adopted to evaluate the antioxidizing effects of vitamin E and quercetin on polychlorinated biphenyls-induced toxicity.

利用体外培养的鸡胚肝细胞研究抗氧化剂维生素E和槲皮素对多氯联苯（polychlorinated biphenyls， PCB）引起的肝细胞损伤的缓解作用。

As antioxidants, the vitamin E or quercetin (10μg/mL) significantly attenuated the toxic effects of PCBs on the cultured hepatocytes. The above results indicated that vitamin E or quercetin might antagonize the toxic effect of PCBs via antioxidizing effects on in vitro cultured chicken embryo hepatocytes.

结果表明离体培养的鸡胚肝细胞可作为肝损伤的细胞模型，PCB对培养的肝细胞的损伤及抗氧化剂维生素E和槲皮素对它的缓解作用提示， PCB对肝细胞的损伤可能是通过诱导细胞膜发生脂质过氧化而导致细胞的死亡。

Observations on intact transparent ovaries under inverted differential interference microscope showed that the antipodal cells in the embryo sac disappeared at 4 days after pollination.

用粳稻84_15与水稻喜峰杂交，在杂种第二代选育出中新一号比秋光增产11%，已种植F10代农艺性状保持一致。

In the"poly-egg apparatus embryo sac",three egg-apparatuses are the majority which canbe further divided into three subtypes,namely,"5-2-1"type,"6-2-0"type and"5-3-0"type,based on the position of antipodal cell.

三卵卵器结构胚囊&依反足细胞的位置又可分出&5-2-1&型、&6-2-0&型和&5-3-0&型等三种亚类型。&

Past study re-sults had indicated that MMC in the apomictic type could at most develop to te-trad stage.We observed that the sexual embryo sac of"Pingyi Tiancha"coulddevelop into 4-nuclei embry sac.

前人只观察到无融合生殖类型的大孢子母细胞至多能发育到四分体时期，而我们观察到平邑甜茶的有性胚囊能发育到四核胚囊。

Seeds globose, ovoid, or fusiform, small, sometimes appendaged; appendage caudate; embryo straight, minute, enclosed by fleshy endosperm.

种子球状，卵球形，或者纺锤形，小，有时有附属物；附属物有尾尖；胚直，小，被肉质的胚乳包围。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。