查询词典 in vitro

In this study, an assessment system of chemicals toxicity to hair in vitro was established by means of cultivating hair follicle of dorsal skin and vibrissa of SD rats in vitro in Williams'E media without serum.

本研究选用SD大鼠背部皮肤毛囊和触须毛囊，在Williams'E无血清培养基中进行体外游离培养，建立了体外毛发毒性评价系统。

But the chondrocytes lost primary characteristics after several passages.Conclusion A great of chondrocytes can be got from xiphoid, and the chondrocytes can grow in suspension and keep primary characteristics for a long time when they are cultured with polyHEMA in vitro. In this way, good seed cells are provided for experiment in vitro, and for the study of tissue engineering, and for clinical study.

从剑突可获得大量软骨细胞，使用PolyHEMA试剂体外培养的软骨细胞，其软骨细胞能长期以悬浮状态生长，并能使软骨细胞长期保持原有的生物学特性，为体外实验及组织工程学的研究提供更优质种子细胞，为临床的进一步研究提供理论基础。

The NO content and the NOS activity were down in the PIH pregnant women placenta.This showed that the ghrelin regulated the VEGF and influenced the the NO down.And the placenta angiospasm,blood pressure highten, and the PIH were caused also by this. The ghrelin,VEGF,Flt-1,NO and NOS were detected by the SP-immunochemistry, RQ-PCR,cell culture in vitro,ASODN and nitrate reductase in the normal pregnancy,PIH placenta and the cultured HUVEC antisense blocking ghrelin in vitro.

结果证实：PIH孕妇胎盘组织中Ghrelin，VEGF、Flt-1蛋白和mRNA水平下降与正常孕妇比较有显著性差异p＜0.05提示在PIH发病过程中Ghrelin可能对VEGF，Flt-1蛋白和mRNA的表达具有下调作用，进而影响胎盘血管网的形成和发育；NO含量与NOS活力水平在PIH孕妇胎盘组织中下降，提示Ghrelin可能通过下调VEGF的表达进一步影响血管舒张因子NO水平下降，进而引起胎盘血管痉挛，血压升高，最终导致PIH的发生。

To further investigate their roles in cell proliferation apoptosis and differentiation, three human leukemia cell lines (K562, U937 and HL60) exposed to various concentration of hexamethylene bisacetamide, a potent inducer of differentiation of transformed cells both in vivo and in vitro, were used as an in vitro model for the study of cell proliferation, differentiation and apoptosis.

为了进一步研究cyclin A和p21在白血病细胞增殖，分化，凋亡中的作用，我们用在体内，外均有抗肿瘤作用的药物六亚甲基二乙酰胺在体外抑制白血病细胞株K562，U937和HL60增殖，诱导其分化，成功地建立了与药物干预浓度呈剂量-效应关系的，具有不同增殖，分化，凋亡状况的实验细胞模型。

Results In vitro recovery of the probe was mainly influenced by the perfusion rate. When the perfusion rate was set at 1.0μL/min, in vitro and in vivo recoveries of the probe were 50.16±2.34% and 14.096±0.58%, respectively. The enhancement indexes for 3%, 5% mentha oil were 3.8 and 17.6, respectively. The enhancement indexes were 9.2 and 24.8, for 3% and 5% of Azone, respectively. Conclusion The steady sate flux of meloxicam in rats is significantly improved by enhancer mentha oil and azone.

结果： 在实验条件下微渗析探针的体外回收率主要受灌注液流速的影响，为（50.16±2.34）%；反向渗析法测得探针的在体回收率为（14.096±0.58）%；MO的体积分数为3%和5%时，增渗倍数分别为3.8，17.6；azone的体积分数为3%和5%，增渗倍数分别为9.2，24.8；结论：不同体积分数的MO和azone均可显著增加美洛昔康经皮渗透稳态流量，azone的体积分数为5%时，大鼠角质层的屏障作用可能受到了较大程度的破坏。

MPP is what really works.Many in vivo studies have proved MPTP can cause PD.We are interested in investigating the influence of MPP+ on mesencephalic Dopamine neurons in vitro and to make sure whether it can be used as an PD model in vitro.

本实验研究拟通过MPP~+对体外培养的中脑多巴胺能神经元的影响的观察探讨MPP~+致PD发病的可能机制以及用制备MPP~+体外的PD模型的可能及其价值。

The major in vitro metabolites of clivorine found in the incubation mixture are two non-pyrrolic metabolites(M1 and M2) and the formation of hepatotoxic pyrrolic metabolites from clivorine is only the minor in vitro metabolic pathway of clivorine in female rats.

山冈橐吾碱在雌性大鼠肝微粒体内的主要代谢物为两个非吡咯代谢物M1和M2。与雄性大鼠不同，生成肝毒性的吡咯代谢物为其次要的代谢途径。

In vitro culture of spermatogonial stem cells is a basic technology of biology ,which can promote the biology investigation of spermatogonial stem cells . So spermatogonial stem cells in vitro culture has become one of the hot fields in the Biology of the Stem Cell in recent years .

精原干细胞（Spermatogonial Stem Cells ， SSCs）的体外培养是开展研究精原干细胞生物学的一项最基本的生物技术，近年来成为干细胞生物学研究的热点领域之一。

By this the system, bovine preantral follicles in different diameters were cultured in vitro;and the effects of the number of follicles in each well of culture plate, different concentrations of NGF, Vitamin E, and Vitamin C on in vitro development of preantral follicles were studied.

在96孔培养板中，每孔25μl培养液的条件下，利用此系统研究了卵泡的入培直径、共培养卵泡数及神经生长因子、维生素C和维生素E对腔前卵泡体外发育的影响。

With the experiments of in vitro cultivation, differentiation and chimeras production, it was confirmed that we have successfully labeled the undifferentiated cells in ES cell lines, and this label was both valid in vitro and in vivo.

经体外培养、诱导分化、嵌合体制作等实验，证明我们利用该载体对ES细胞中的未分化细胞成功进行了标记，而且该标记在体内、体外都是有效的。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。