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The patho-factor of pulmonary fibrosis is very complex. With the development of cytobiology and molecular biology there are much proof shows PF is a disease induced by multiple factor, multiple organ and multiple cell; and happens between cells and mesenchyma in multiple path.

肺纤维化(pulmonary fibrosis，PF)形成的病理因素十分复杂，近几年细胞生物学和分子生物学的发展为PF的形成机制提供了大量依据，证明PF是一个多因素、多器官、多细胞、多种因子之间以及细胞与间质成分之间形成的一个多层次，多步骤，多通路的疾病。

IntroductionBasic fibroblast growth factor is a kind of cell growth factor which has a great effect on proliferation and differentiation to mesodermic cells.

前言 碱性成纤维细胞生长因子是一种对中胚层来源的细胞有强烈促增殖和分化作用的细胞生长因子。

As the primary factor, alkabinity should condition were acquired. As the primary factor, alkabinity should be below 12g/L; the desulfurization effect is optimum when the ratio of tannic and sodiumm metavanadate was 1.5-2; the high absorption temperature is unfavour for desulfurzation 30~40癈 was proved to be effective through experiments.

并得出碱度是影响其脱硫效率的主要因素，总碱度控制在129几以下比较适宜；拷胶和钒在脱硫过程中只是起催化作用，且得到二者比例满足1.5一2时，脱硫效果最佳；温度对脱硫效率的影响主要是在较高温度下会促进副产物 NaZSZO3的生成，所以脱硫反应器中的温度不能太高，经实验证明一般控制在30一40℃。

The decisive influencing factor of viscosity in carboxyl-methylation was cross-linking reaction. Carboxyl-methylation was the main influencing factor of solubility and swelling capacity in modification of high content amylose starch. The structure and gelatinization property of different amylose content were analyzed with an Olympus Vanox BHS-2 multi-function optic microscope, and the results were as follows. The structure of ordinary cornstarch was different from the high amylose; gelatinization temperature and pH value of starch were affected deeply by amylose content, but had little difference between the gelatinization of high content amylose starch contained 50% and 70% amylose; pH value had much more effect than temperature on the gelatinization of high content amylose cross-linked starch. Monochloroacetic acid consumption, alcohol concentration and pH value influenced the starch carboxyl-methylation. When alcohol concentration was 60%, pH value 10, monochloroacetic acid/starch mass ratio 55%, the carboxyl-methylation of high amylose cross-linked cornstarch had the best result. With the In-Vitro digestibility model and biodegradation experiment, the digestibility and biodegradability of high amylose cornstarch and its modified starch were detected.

采用Brabande粘度测定仪和Olympus Vanox BHS-2型多功能光学显微镜等分析手段对链淀粉含量50％和70％的高链玉米淀粉及其交联和交联羧甲基化淀粉的结构和性质进行了表征和分析，结果表明，普通玉米淀粉结构与含链淀粉50％和70％高链玉米淀粉结构不同；高链淀粉比普通淀粉难糊化，高链改性淀粉糊化受pH值影响较大，受温度影响较小；淀粉的冻融稳定性、透光率、溶解度、膨胀度和粘度受链淀粉的含量和改性的影响，但是，链淀粉含量超过50％时，则链淀粉含量对淀粉的膨胀度和溶解度影响不大；改性淀粉性质的影响因素中，影响粘度主要因素是交联反应，影响透明度、溶解度和膨胀度主要因素是羧甲基化改性；一氯乙酸用量、反应时乙醇浓度及碱性条件都会影响高链淀粉及其交联淀粉的羧甲基化改性效果，制备羧甲基化改性淀粉的最佳工艺是在pH值为10的60％的乙醇浓度介质中按一氯乙酸/淀粉质量比为55％进行取代反应。

METHODS: Fetal liver was obtained sterilely. Monoplast suspension was collected by collagenase digestion and mechanical separation, and then centrifuged using 1.070 g/mL Percoll separating medium and 1.077 g/mL Ficoll separating medium. Cells achieved from the interface of separatory liquids were cultured in DMEM/F12 medium, supplemented with 0.1 volume fraction of fetal bovine serum, 20 μg/L hepatocyte growth factor and 40 μg/L epidermal growth factor, for 9 days.

无菌状态下取出胎儿肝脏，以胶原酶消化法和机械分离法获得胎儿肝脏来源单细胞悬液，分别采用1.070 g/mL Percoll分离液和1.077 g/mL Ficoll分离液进行密度梯度离心，吸取界层细胞，添加含体积分数为0.1 FBS、20 μg/L肝细胞生长因子、40 μg/L表皮生长因子的DMEM/F12新鲜培养基诱导9 d。

Objective To observe the expression and distribution of bone morphogenic protein, transforming growth factor－β and basic fibroblast growth factor in fracture healing so as to find out their action mechanism.

摘 要：目的观察骨形态发生蛋白、转化生长因子－β、碱性成纤维细胞生长因子在骨折修复中的表达及分布情况，进而探讨其作用机制。

Hepatocyte growth factor/scatter factor is a multifunctional cytokine with mitogenic, motogenic, and morphogenic activities for renal tubular cells.

肝细胞生长因子是一个对肾小管上皮细胞具有强烈丝裂原活性以及细胞运动与形态调节的多效性细胞因子。

AIM To study the long-term toxicity of modified recombinant human tumor necrosis factor rhTNF-NC in Macaca mulatta compared with recombinant human tumor necrosis factor rhTNF.

目的 研究新型重组人肿瘤坏死因子rhTNF-NC iv对恒河猴的长期毒性，并与重组人肿瘤坏死因子rhTNF作比较。

Objective To investigate the expression of transforming growth factor beta-1 (TGF-β1) and insulin like growth factor-1 receptor (IGF-1R) in human uterine leiomyoma and myometrium.

目的 探讨转化生长因子β1(TGF-β1)和胰岛素样生长因子1受体(IGF-1R)在子宫肌瘤中的表达及其相关性。

Nerve growth factor is the fist found cellar factor that regulates cell growth, and it plays a very important role at the phrase of nerve development、neuraxon growth、 neurotransmitter synthesization and cell apoptosis and so on.

神经生长因子是最早发现的细胞生长调节因子，在神经元的发育、轴突的生长、递质的合成及细胞的凋亡等阶段起着非常重要作用。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。