上皮

DNA content within 25 cholesteatoma tissues and 10 normal postauricular skin was measured with flow cytometry.

利用机械捣碎法将新鲜的胆脂瘤和外耳道上皮制成单细胞悬液；采用PI法，对25例胆脂瘤上皮和10例正常外耳道细胞上皮的DNA进行流式细胞术分析。

Primary culture of goat mammary gland cells could be derived by outgrowth of migrating cells from fragment of tissue. Fibroblast and epithelial cells could be pured according to their different sensibility to trypsin. Complex cultures treated by 0.25% trypsin in Hanks' for 5~7min at 37℃, the dispersed cells were mainly fibroblasts,then the rest treated by 0.15% trypsin-0.02% EDTA in Hanks'for 5~8min at 37℃, the majority cells harvested were mammary epithelial cells.

用组织块培养法可获得良好的山羊乳腺细胞原代培养物；培养的山羊乳腺成纤维细胞比上皮细胞对胰蛋白酶更敏感，据此可在传代过程中将二者分离纯化，获得纯细胞系；混合培养物先用0.25%胰蛋白酶在37℃消化5~7min 所收集的细胞主要为成纤维细胞；再加0.15%胰蛋白酶-0.02鞹A 消化液在37℃继续消化5~6min 所回收的细胞绝大多数为上皮细胞，经过2~3 代，即可得到纯化的乳腺上皮细胞系。

Primary culture of goat mammary gland cells could be derived by outgrowth of migrating cells from fragment of tissue. Fibroblast and epithelial cells could be pured according to their different sensibility to trypsin. Complex cultures treated by 0.25% trypsin in Hanks' for 5~7min at 37℃, the dispersed cells were mainly fibroblasts,then the rest treated by 0.15% trypsin-0.02% EDTA in Hanks'for 5~8min at 37℃, the majority cells harvested were mammary epithelial cells.

用组织块培养法可获得良好的山羊乳腺细胞原代培养物；培养的山羊乳腺成纤维细胞比上皮细胞对胰蛋白酶更敏感，据此可在传代过程中将二者分离纯化，获得纯细胞系；混合培养物先用0.25%胰蛋白酶在37℃消化5~7min 所收集的细胞主要为成纤维细胞；再加0.15%胰蛋白酶-0.02%EDTA 消化液在37℃继续消化5~6min 所回收的细胞绝大多数为上皮细胞，经过2~3 代，即可得到纯化的乳腺上皮细胞系。

The CK5 and CK18 positive epithelial cells were unorderly distributed within the whole budding tips or the acini firstly.

CK是各种单层上皮、腺上皮以及复层上皮所表达的一种中间纤维蛋白，现已发现了20种。

Methods The ARPE-19 cells were put into normal and hypoxic chamber respectively.After 0hr、8hr、24hr、48hr,the proliferation of ARPE-19 cells was evaluated by[3-(4,5-dimethylthiazole-2yl)-2,5-diphenyl tetrazolium bromid, MTT]-test.

第一部分缺氧人视网膜色素上皮细胞株ARPE-19表达特性目的观察缺氧对人视网膜色素上皮株ARPE-19的细胞形态、增殖以及对其分泌的血管内皮生长因子和色素上皮衍生因子表达的影响。

The buccal-pharynx cavity was large, and its mucosa was composed of stratified squamous epitheliums with a few goblet cells.

食道很短，但上皮包括复层鳞状上皮区和单层柱状上皮区。

After renal cortexes were Grinded and digested with 0.25%tryspase.The cell types of epithelial cell were identified by immunocytochemistry.The injury model of rats, renal tubular epithelial cells were established by using gentamicin.And observed the role of bFGF in renal tubular epithelial cell.

通过对大鼠肾皮质研磨、过网的方法，并以0.25%胰蛋白酶消化，以免疫细胞化学方法鉴定体外培养的肾小管上皮细胞(抗Cytokeratin 18抗体)，以庆大霉素对培养的肾小管上皮细胞建立损害作用模型，然后观察碱性成纤维细胞生长因子对损害的肾小管上皮细胞的保护作用。

TGF-β1 took on extensive positive in alveolus epithlia in the control group. The positive cytes of the groups under hyperxia-exposure for 3, 7, 14 day distributed in alveolar epithelium, pulmonary interstitial, bronchoepithlia and macrophage, which were notably enhanced along with the time of hyperxia-exposure.

IFN-γmRNA在高氧3天（0.62+0.49）、7天（0.44+0.53）、14天（0.39+0.27 ）均高于空气组(0.20+0.14)，高氧3天达到高峰水平（P.05），高氧7天后开始下降（P＞0.05），高氧14天下降更为明显（P＞0.05）；TGF-β1的阳性细胞在空气组广泛分布于肺泡上皮，高氧组各期广泛分布于肺泡上皮、肺内间质、支气管上皮、血管内皮和巨噬细胞。

Itplayed a role in the morphogenesis and ductal migration of mammary epithelial cells, promoted theresponsiveness of these cells to lactogenic hormones in vitro and induced the differentiation ofmammary epithelium into secretory lobuloalveoli.

Heregulin-α是细胞间信号蛋白，它可增强体外培养的乳腺上皮细胞对催乳素的敏感性，在乳腺上皮细胞形态发生、导管形成，以及诱导乳腺上皮细胞分化成分泌腺泡中扮演了重要角色，对乳腺发育和乳腺功能调控具有重要作用。

The result showed that the surface architecture and ultrastructure of I.punctatus ' gill and secondary gill lamellae were similar to those of other teleosts. The surface of gill arches and gill rakers was covered with pavement cells which were characterized by circular microridges, and secreting-holes were found among cells on the surface of gill arches. The base part of gill rakers were bigger in terms of diameter. The pavement cells' surface of gill filaments' middle part was characterized by microridges with fine lateral protuberances on both sides which were either fused or interruped, while the microridges disappeared on the pavement cells' surface on both top and base parts of gill filaments, forming dense granulated protuberances. The height and interlamellar space of secondary gill lamellae in I.punctatus were relatively higher and bigger, respectively.

结果表明，斑点叉尾鮰鳃的表面结构和微细结构与其他硬骨鱼类基本相似，鳃弓和鳃耙表面被具环形微嵴的扁平上皮细胞所覆盖，鳃弓表面细胞之间有孔洞；鳃耙基部较粗壮；中部鳃丝上皮细胞表面的微嵴两侧有细小的横突，有些微嵴出现融合或间断；端部和基部鳃丝上皮细胞表面的微嵴消失，形成密集颗粒状突起；鳃小片的高度和片间距较大。

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