中骨

Living bones consist of bony substance, periosteum and bone marrow, and are abundant in blood and nerve supply.

分类 根据骨在体内的部位，可分为颅骨、躯干骨和四肢骨三大类，其中躯干骨和颅骨统称为中轴骨。

Marrow cavity is the place where bone cement fusion takes place, so its preparation is important to improve bone cement filling quality.

摘要背景：提高骨水泥与骨界面的融合可降低假体松动率，骨髓腔是骨水泥融合中的接受腔，其准备过程是提高骨水泥充填质量的关键。

Giant cell tumor of bone is a kind of common bone tumor,which has characteristics of high recurrence rate and invasion.recently,tumor vessel angiogenesis has been the warm spot of research.genesis,development and metabasis of solid tumor have close relationship with tumor vessel angiogenesis; extracellular matrix degradation is the key point for tumorous infiltration and metabasis;the significant biology characteristic of tumor cell is the disorder of tumor cell differentiation and apoptosis.the correlated research has very important significance for judging gct prognosis and guiding therapy.

骨巨细胞瘤（giant cell tumor of bone，gct）是一种常见骨肿瘤，由于其高复发率和强侵袭性，备受临床骨科工作者的关注。骨巨细胞瘤血管生成是近年来研究热点，实体瘤的发生、发展及转移与肿瘤的血管生成密切相关；细胞外基质降解在肿瘤的浸润和转移中起到关键作用；肿瘤细胞的分化凋亡障碍与无限增殖能力是肿瘤细胞的重要生物学特征。骨巨细胞瘤生物大分子研究的不断深化对判断gct的预后及指导治疗有重要意义。

The palate bone defects can be repaired completely by GBR with collagen composite of human recombinant morpho...

1复合Hr -BMP胶原膜GBR具有确实有效的骨引导和骨诱导性，在骨缺损修复的早期阶段即可产生大量的新骨；2 复合Hr-BMP胶原膜植入后 4周内的成骨活动最活跃，胶原膜和复合Hr-BMP胶原膜在其降解吸收过程中，不干扰后续的成骨活动；3仍有必要构建具有适合的吸收降解性和一定力学强度的隔膜材料。

METHODS: Measurement of palatal raphe area first three-dimensional reconstruction of images at up to nasion plane centerline, whichever was determined as a reference surface plane, selection one point on incisor cervix in this line, to measurement of the available palatal bone height; sagittal views were selected at 6 mm dorsally from the incisive canal. The available bone height was defined as the distance from the palatal baseline (lower cortical border of the palate) to the nasal cavity (upper cortical border of the nasal cavity).

先在三维重建图像上以鼻根为准确定面中线平面为参考平面，在此线上选择1个位于中切牙牙颈部的点，在其矢状位图像上，选取位于口腔内侧骨皮质上距切牙孔后缘6 mm处为标测点，通过此点向硬腭做垂线确定腭骨厚度，测量范围自口腔内腭部骨皮质外侧边缘至鼻腔侧骨皮质外侧边缘。

Osteosarcoma is the most common malignant bone tumor in adolescents and young adults, characterized by the proliferation of tumor cells producing osteoid or immature bone matrix.

骨肉瘤是青少年中最常见的恶性骨肿瘤，其特点是产生骨样组织和不成熟骨基质的肿瘤细胞大量增殖。

There was no report, up to date, on the determination of flavonoids in Psoralea corylifolia L.. In this study, an HPLC method for simultaneous determination of corylin and bavachin was set up.

由于补骨脂中黄酮类化合物的分析测定未见报道，因此，本研究首次建立了同时测定补骨脂中补骨脂异黄酮和补骨脂二氢黄酮的HPLC分析方法。

However, in the stage of remodelling the stressshielding effect of the rigid plate causes severe regional osteoporosis which is a potential cause of refracture of plated bone after the beginning of weight-bearing or after the plate removal.

然而在骨折愈合过程中及后期骨改建阶段，坚硬接骨板强大的应力遮挡作用可诱发严重的局部骨质疏松，它是负重开始后或接骨板取出后固定骨段再骨折的潜在原因。

METHODS: The rib trabeculae were resected and broken, trypsinizated and washed completely by PBS. Bone surface and non-adhesive floating cells in cleaning fluid were observed with inverted microscope. Rib trabeculae was washed by DMEM culture medium once, and cultured in culture bottle. The culture liquid was replaced by new one once a week. The osteoblast was moved from the sclerite a week later. The cells were fused monolayer and could be subcultured 4 to 6 weeks later.

切下人肋骨骨小梁剪碎，胰酶消化后以PBS彻底冲洗直至于倒置显微镜下观察骨片表面及清洗液中无粘着及漂浮的细胞，以DMEM完全培养液清洗骨小梁1次，移入培养瓶内培养，每周更换培养液1次，1周后可见成骨细胞自骨片移出，4~6周细胞融合成单层可作传代培养。

Similar expression of BMP-2, TGF-β,bFGF between the test groups and control groups was noted. Inflammatory cells in the hematoma expressed bFGF and proliferating periosteal cells, endosteal cells, medullary mesenchymal cells expressed TGF-β at 3 days postoperatively.

实验侧和对照侧3天时血肿中炎性细胞时即开始表达bFGF，增殖骨膜、骨内膜、骨髓间质细胞表达TGF-β。1周时骨端骨细胞、骨痂成骨细胞才开始表达BMP-2，同时也表达TGF-β。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。