成骨

And, precise temporal expression of HoxC8 is important for determining the correct identity of the vertebral column in early embryos.

然后，在MC3T3-E1与C2C12两种细胞系分别建立成骨分化模型并检测不同成骨分化时期HoxC8的表达谱。

According to principle of mechanical movement,two support plates were designed to move relatively, which transferred randomly along with two perpendicular directions. It was done to change the direction and model 3-D distraction osteogenesis on zygomatic bone of the isolated caprine cranium.

根据机械移动原理，设计两块可相对移动的支撑板，一定范围内在两个垂直方向任意移动，带动牵张杆改变牵张方向，进行三维牵张成骨，在离体羊颅骨模型上进行模拟牵张成骨。

Osteogenic potential of BMSCs of OVX group decreased, but adipogenic potential increased significantly than that of control group.

3：实验组BMSCs成脂分化能力较对照组高，自身成骨能力较对照组弱，rhBMP-2诱导下两组细胞成骨能力无显著差别。

We review the effect of rare earth ions on bone metabolism as the following three aspects:(1) effect of rare earth ions on differentiation and function expression of osteoblasts and osteoclasts;(2) effect of rare earth ions on the osteogenic and adipogenic differentiation of bone marrow stromal cells;(3) effect of rare earth ions on bone mineral phase of animals.

本文回顾了稀土离子对骨代谢影响的研究进展，探讨了其药用和安全性问题，主要从以下三个方面进行综述：(1)稀土离子对成骨细胞和破骨细胞的分化和功能表达的影响；(2)稀土离子对骨髓基质细胞成骨分化和成脂分化的影响；(3)稀土离子对动物骨矿物相的影响。

We review the effect of rare earth ions on bone metabolism as the following three aspects:(1)effect of rare earth ions on differentiation and function expression of osteoblasts and osteoclasts;(2)effect of rare earth ions on the osteogenic and adipogenic differentiation of bone marrow stromal cells;(3)effect of rare earth ions on bone mineral phase of animals.

本文回顾了稀土离子对骨代谢影响的研究进展，探讨了其药用和安全性问题，主要从以下三个方面进行综述：(1)稀土离子对成骨细胞细胞和破骨细胞的分化和功能表达的影响；(2)稀土离子对骨髓基质细胞成骨分化和成脂分化的影响；(3)稀土离子对动物骨矿物相的影响。

The responses of osteoblasts to both agents can be as the characteristics of primary osteoblast derived from rat calvaria.

这些成骨细胞对上述两种药约之反应也可作为由大鼠头颅骨所取出之成骨细胞的特性。

Objective To investigate effects of different doses of recombinant human bone morphogenetic protein-2 (rhBMP-2) on vascular endothelial growth factor expression in fetal moose osteoblasts. Methods Calvaria osteoblasts of fetal once of 19 days were cultured.

目的 通过不同剂量重组人骨形态发生蛋白－2(rhBMP-2)刺激原代培养的小鼠胚胎成骨细胞，探讨BMP-2对成骨细胞血管内皮生长因子表达的影响及规律。

Osteoblast clone cultivated by adult rat calvaria as culture model in vitro, which can be used to screen new anti-osteoporosis drugs with promoting osteogenic action.

本研究从成年SD大鼠颅骨分离培养成骨细胞，方法简便、快速，是筛选促进成骨细胞骨形成的抗骨质疏松新药的良好体外模型。

Bone induction is an important theory in the early 20th century. Urist found that bone morphogenetic protein could promote mesenchymal cell to differentiate into osteoprogenitors and chondroblast in 1965, thence many scholars went in for the significant work in this research field.

诱导成骨是近代发展的重要理论，Urist首先提出间充质细胞在骨形态发生蛋白的作用下可向成骨和成软骨方向分化，此后国内外很多学者在该领域进行了广泛深入的探索。

Bone marrow containing hematopoietic stem cells has already been known , theses another group stem cells exists in bone marrow named mesenchymal stem cells. MSCs retain the potentiality of differentiating into osteoblast, chondroblast, adipoblast, tendonblast, myoblast, cardiomyoblast, neuron, etc , which displays a bright prosperity of its use in tissue enigeering, wound healing , cell transplatation and gene therapy. MSCs can be obtained and expanded easily compared to ESC without any problems of morality , law and ethic , immunology.

最早在130年前，德国病理学家Cohnheim在研究创口愈合时就推测在创口愈合过程中出现的部分细胞可能来自骨髓。20世纪70年代，Friendenstein发现一小部分骨髓中贴壁最牢固的细胞经数此传代后形成独特的纺锤形外观，具有形成成骨细胞或软骨细胞的能力。80年代以来，许多研究小组进一步证实了Friendenstein分离到的这些细胞是多能的，在体外特定诱导条件下，可以分化为成骨细胞、软骨细胞、脂肪细胞、成肌细胞、神经元等，被称为骨髓间充质干细胞(Bone MarrowMesenchymal Stem Cells，MSCs)。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐