查询词典 collagen

Three other wound dressings were developed by similar method, namely collagen membrane with polyurethane membrane onlay, polyurethane-coated collagen membrane and collagen membrane on gauze.

并以类似的方法研制成聚氨酯膜-胶原海绵复合膜，涂聚氨酯胶原膜，和纱布胶原膜三种创伤敷料。

the fibroblasts are activated in collagen synthesis in active keloid. The enhanced collagen synthesis by fibroblasts is a critical factor leading to the overabundant collagen accumulation in keloid.

结论在活跃增生的瘢痕疙瘩中，成纤维细胞胶原合成功能处于活化状态，胶原合成增加是瘢痕疙瘩中胶原过度积聚的重要原因。

Hepatic hydatid cyst ; pericystic layer ; collagen Ⅰ; collagen Ⅲ; collagen

肝包虫；纤维性囊壁；Ⅰ型胶原；Ⅲ型胶原；Ⅳ型胶原

Special staining methods, such as Masson and the Van Gieson staining were used to study the distribution of collogen fibers and elastic fibers. ResultsBy HE staining, the subepithelial connective tissues and vessels in the pterygium were more prominent than normal conjunctival tissues. An amorphous subepithelial superficial hyalinized zone and coarse eosinophilic granular materials were observed in the pterygia, but they were not found in normal conjunctival specimens. Coarse fibers were visible only in the deeper subepithelial connective tissues of pterygial samples. With Masson′s staining, the dense staining of collagen fibers was also more prominent in the pterygium than in the subepithelial connective tissues of normal conjunctiva. Abnormal collagen fibers were visible in the deeper sub-epithelial connective tissues of pterygial samples. With Van Gieson staining, abnormal collagen fibers were visible in the deeper subepithelial connective tissues. Dark coarse elastic fibers were found in the abnormal fibers only in the subepithelial deep connective tissues of pinguecula in the pterygia but not in the conjunctiva. With immunohistochemistry staining, MMP-3 was strong in the pterygial epithelium, moderate in fibroblast and absent from pterygial vascular walls. LN was strongly expressed in the blood vessel wall, moderately in the epithelial basement membrane and absent from the entire stroma.

结果HE染色：翼状胬肉组织上皮下基质中存在结缔组织的增生和血管形成；基质浅层存在一无定形物质透明区及粗糙的颗粒样嗜酸性物质，在翼状胬肉体部深层基质中存在粗糙的纤维组织；正常球结膜组织细胞排列整齐；基质为疏松结缔组织，胶原纤维平行排列，其间可见成纤维细胞，散在少量中性粒细胞、毛细血管；Masson染色：翼状胬肉浅层基质中存在致密的胶原纤维染色，深层基质中的胶原纤维存在变性样改变；VG染色：翼状胬肉组织深层基质中存在大量变性的胶原纤维，其间夹杂黑色的弹性纤维；免疫组化染色法：MMP-3在翼状胬肉上皮细胞中呈强表达，成纤维细胞中呈中等强度表达，血管内皮细胞中未见表达；LN在血管壁中呈强表达，在上皮细胞基底膜中呈中等强度表达，在整个基质中未见明显表达；col Ⅲ在整个翼状胬肉基质中呈强表达。

The psammoma body mineralization in meningioma is a common type of mineralizationThe analysis of the mineral composition may provide some support information in finding the reason of happening and developing of the diseaseThis paper focuses on the concentric layered structure mineralization in meningiomas, using mineralogical methods, such as HRSEM, ESEM, EDAX, EPMA, HRTEM, XRD and FTIR to systematically investigate the mineral composition, structure and shape of the minerals in psammoma bodies in meningiomasWe have devised a method for preparing the silicon wafer sheet which was used for the ESEM insitu observations and analysisIn this study, we first got the ESEM and HRTEM images of the initial mineralization phase of meningiomasThese images showed that in the early stage of psammoma body mineralization in meningiomas, many mineralized balls composed of octocaphosphate were precipitated on the collagen fibersThese balls continued to grow and aggregate, and were gradually hydrolyzed to become the dahlliteThe continued development of mineralization resulted in the mineralized collagen fibersThe study revealed that the concentric layered structure of the psammoma bodies in meningiomas is formed by the spiral arrangement of the mineralized collagen fibers on which the mineralized grains precipitated.

砂粒体矿化是脑膜瘤中常见的矿化类型，对其形成机理和矿物成分的分析可能会对肿瘤发生、发展的研究提供辅助信息。该研究选取人脑膜瘤中的砂粒体矿化作为研究对象，采用偏光显微镜、环境扫描电镜及能谱、X射线衍射仪、高分辨透射电镜和电子探针对样品的形貌、结构和成分进行测试分析，并以此为依据探讨脑膜瘤中砂粒体的形成机理。研究结果表明矿化的初期为沉淀在胶原纤维上的矿化小球，成分为磷酸八钙；矿化小球不断生长聚集，并逐步水解为碳羟磷灰石晶体，矿化的不断发展致使胶原纤维也发生矿化。砂粒体的同心层状构造是由螺旋状排列的矿化胶原纤维及沉淀在其上的矿化颗粒组成的集合体，而不是多数研究中所述：砂粒体是以坏死细胞残骸为中心由内至外的同心层沉淀。

Collagen, a most abundant protein, is widely distributed in skins, tendons, cartilages and constitutes about 25%-30% by weight of all proteins in human or other animal bodies. Collagen structure is characterized by containing domains with repetition of the Gly-Xaa-Yaa prolinrich tripetide and the trimeric collagen triplehelices.

胶原是动物体内含量最多、分布最广的蛋白质，广泛分布于结缔组织、骨骼、内脏细胞间质及肌腔、韧带、巩膜等部位，占人体或其他动物体总蛋白含量的25％～33％。

Results ET-1 increased the synthesis of soluble type I collagen in different periods besides the 24h group, and had no effects on the type III collagen; immunohistochemical staining revealed that ET-1 also increased the synthesis of unsoluble type I collagen.

结果 ET-1较对照组除24小时时相外，均有不同程度的促HDPC可溶性I型胶原合成作用，但对III型胶原作用不明显；经免疫组化染色证实：ET-1尚可同时促进细胞非溶解性I型胶原合成。

Methods: the chondrocytes of the rabbit condylar were derived from rabbit,and were cultured to the second generation in vitro,then hgfcdna transfected the cells.the capacity of cell proliferation was tested by mtt,the deferences of the type ii collagen were tested by sabc immunohistochemical of the type ii collagen after infected;the mrna levels were tested nd so on the mrna levels were tested by in situ hybridization of the type ii collagen between the transfection group and comparison group .

取兔膝关节软骨细胞体外培养至第二代，hgfcdna转染软骨细胞，空白质粒组为对照组；噻唑蓝检测软骨细胞的增殖能力，sabc免疫组化及原位杂交法测其ii型胶原在转染前后的变化与mrna的表达。

In order to explore application of collagen from rat rail tendon to experimental medicines,the collagen,extracted from solvating fresh rat rail tendons by using a simple economical method,has been prepared collagen gel.

周志瑜 ，廖小宜，余海为了探索鼠尾肌腱胶原蛋白在实验医学中的应用，用简单的方法溶解新鲜大白鼠鼠尾肌腱，从中提取较纯的胶原蛋白，制成胶原凝胶。

Results The maximum absorbance of the purified collagen appeared at 230nm, with correspondence to type Ⅰ collagen, two close bands on SDS-PAGE (mol. wt 98 000) suggested the purified product was type Ⅰ collagen.

结果：提取的胶原紫外分光光谱最高吸收峰值为230nm左右；聚丙酰胺凝胶电泳呈现2条相邻带（相对分子质量98000左右），符合Ⅰ型胶原的特性。

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。