查询词典 vitro

In summary, that results suggested that the cytoplast of rabbit, bovine or goat oocyte can support reprogramming of nuclei of goat somatic cells and early development in vitro of reconstructed embryos, a

这些研究结果，不仅对完善动物克隆技术，而且对促进动物繁殖学、发育生物学的发展均具有重要的科学意义。

The three types of reconstructed embryos(reconstructed embryo of goat-rabbit, goat-bovine and goat-goat) were produced respectively by nuclear transfer using goat ear firbroblast cells as donors and rabbit, bovine and goat ooctyes as recipients, and the factors of cytoplast environments influencing cloned embryo development in vitro, cytoplast effect in nuclear transfer, the methods of transferring cloned embryo and the effects of pregnancy factor on implantation of cloned embryo were studied in this experiment, in order to supply basis for solving the difficulty of implantation of inter-species cloned embryo in recipient and improving the efficiency of cloning.

本试验以波尔山羊耳成纤维细胞为供体，分别以牛、羊、兔的卵母细胞为受体进行体细胞核移植，构建了山羊-兔、山羊-牛和山羊-山羊三种重构胚。研究了不同的胞质环境对重构胚体外发育的影响与核移植中的胞质效应，并对异种克隆胚胎采用了去透明带移植和配种后再移植的方法，探讨移植方法和妊娠因子对异种克隆胚胎在受体动物体内发育的影响，旨在为解决异种克隆胚移植不易着床发育的难题和为提高动物克隆效率提供理论依据。

ObjectiveTo explore the methods of prevention and cure of sun-induced aging dermis, and clarify the mechanism of Ginsenoside Rb1 on sun-induced aging dermis, with the study of expression of matrix metallo preteinases in sun-induced aging dermis fibroblasts' cytoplast, which are cultured in vitro, under the effect of Ginsenoside Rb1 and arotinoid ethyl ester.

目的通过人参皂苷Rb1与芳维甲酸乙酯对皮肤真皮体外培养光老化成纤维细胞胞质内基质金属蛋白酶表达的影响，阐明人参皂苷Rb1对光老化的防治机理，探索光老化的防治手段。

OBJECTIVE: To prepare cytotoxin/poly lacticoglycolic acid nanoparticles, and to study the general property and drug release in vitro.

目的：制备眼镜蛇毒细胞毒素-聚乳酸-羟基乙酸微球，观察其一般性质和体外释药特性。

Aspirin or celecoxib can inhibit the growth, urease activity and vacuolating cytotoxin activity of H pylori in vitro significantly.

阿司匹林及塞莱昔布可剂量依赖性的抑制 H pylori 的尿素酶活性及空泡毒素的活性。

Methods: The Hela cells were cultured in vitro and treated with different concentrations(0.125～2.0 mg/ml) of matrine solution for 24～72 hours. MTT assay was performed to evaluate the cytotoxin effect of matrine on Hela cells. FCM was used to detect the apoptosis of Hela cells. Transmission Electron Microscope analyses were carried out to examine the cell morphology.

选用人宫颈癌Hela细胞进行体外培养，以0.125～2.0 mg/ml的苦参碱分别处理Hela细胞24～72 h后，MTT法检测细胞增殖，流式细胞仪检测细胞凋亡率，透射电镜进行形态学观察，RT-PCR半定量检测凋亡相关基因Bcl-2和Bax的mRNA表达水平。

Objective To investigate neural stem cells modified by cytosine deaminase gene and its expression in vitro.

提要： 目的探讨胞嘧啶脱氨酶(Cytimidine deaminase ， CD)基因修饰神经干细胞及其基因表达。

Objective To establish an in vitro model of human decidua l cell culture for screening drugs and studying antifertility drugs.

目的建立分散的人蜕膜质细胞培养模型以用于抗生育药物的筛选研究。

Hypoxia induces dedifferentiation of neuroblastoma cells in vivo and in vitro, and under oxygen-compromised conditions the Notch cascade is activated.

在体内和体外缺氧可诱生成神经细胞瘤的去分化，而氧妥协的情况下，Notch信号则被激活。

Methods Rabbit pulmonary alveolar macrophages were cultured in vitro. The cell death rate, the malandialdehyde, lactate dehydrogenate and superoxide dismitase contents in the cultured cells were determined at different incubation time and different dose of chrysotile asbestos for the cytotoxicity of the material.

采用体外细胞培养技术，以兔肺泡巨噬细胞死亡率、乳酸脱氢酶、超氧化物歧化酶活力及丙二醛含量变化来表示不同剂量、不同培养时间的纤状蛇纹石石棉对巨噬细胞的毒性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。