角质组织

Epidermis- the outermost layer: dead cornified cells, continuously loss to protect the underlying tissue.

在最外层的是众多层已死的角质化的细胞，它们不断脱落以保护下面的组织。

PAI-3 was expressed in the human skin and mainly located in the superficial,more differentiatied layers of the epidermis,and was incorporated into the cornified envelope of terminally differentiated keratiocytes.

1、PAI-3 在人皮肤表皮组织中表达，且主要位于分化程度较高的表皮KC 中，其存在终末分化KCs 角质壳中。

2The involvement of MFT in woman is more than that in man.(3)The patients showed multiple dome-shaped, skin-colored, firm papules on the face. Some patients also present the lesions on the scalp and neck. No lesion showed the malignant tendency.(4) The histologic findings of MFT are cornified cysts and some nests of basaloid epithelial cells.(5)There were variable clinical expressions in different patients of the same family.(6) Some pedigrees were also affected by feckle or symmetrical progressive erythrokeratoderma, which were not found in MFT patients of other origin.

MFT临床分析总结：①MFT遗传方式为常染色体显性遗传；②女性发病多于男性；③中国汉族人MFT的典型皮损特征为面部乳白色半球形或圆锥形丘疹，质地坚实，只有2个家系皮损分别发生于头皮及颈部，均无恶化倾向；④组织病理特征为角质囊肿和由基底样瘤细胞构成的肿瘤岛；④同一家系中不同的患者表现度不同；⑤个别家系可伴发雀斑及进行性对称性红斑角化症，其它家系不伴发其他疾病。

Abstracts of papers presented at the27th annual meeting of the American Society of Dermatopathology.

在银屑病的组织病理学改变中，角质形成细胞的过度增殖是主要的特征。

Genetic defects in telomere maintenance result in dyskeratosis congenita, a family of diseases characterised by deterioration of rapidly-renewing tissues.

端粒维持的遗传缺陷导致角质化不良症（ dyskeratosis congenita ， DC ），这是一组疾病，特征是迅速更新组织的退行性变化。

The location and structures of sex-pheromone-producing gland in female H.insularis were studied by EAG,GC,SEM,and TEM.These studies showed that thegland situate in the intersegmental membrane between the eighth and ninthabdominal segments,and is an eversible abdominal fold;Many plump cones disturbon the surface of the gland.The glandular cells of 2-day old virgin female H.insularis are arranged in one layer,among which the central cells are columnarepithelial cells and flat on two sides.The nucleus is irregular elliptical.There isevident conjugation between cells and the involution is more in the basal membraneof cell.Microvilli are distributed on the cytoplasmic membrane and linked withendocuticle on which there are many layers of chitin,and the outer cuticule is staineddeeper.The cell contains bubbles,mitochondria,glycogen deposits,roughendoplasmic reticulum and smooth endoplasmic reticulum.

结合触角电位、毛细管气相色谱、扫描电镜、透视电镜等技术对小线角木蠹蛾雌蛾腹尖末端不同组织部位提取物的测定分析以及腺体位置和形态结构的观察发现：小线角木蠹蛾性信息素分泌腺位于腹部末端8～9节之间，是一个由节间膜特化而成的上皮结构，为一可外翻的腹褶，腺体表面分布着饱满的锥形体，羽化后2天未交尾的雌蛾腺体细胞呈单层排列，腹面中央由密集的柱形上皮细胞组成，细胞排列向两侧延伸至背部，其形状由柱形逐渐变为扁平形，细胞核为椭圆形，细胞与细胞间有明显的胞连接，细胞基底膜基褶较多，质膜上分布着微绒毛，并与内表皮连接，内表皮上有多层几丁质，外角质层染色较深，细胞质中含有空泡、线粒体、脂质粒、粗面内质网和光面内质网。

Multiple familial trichoepithelioma is inherited in autosomal dominant manner with high penetrance. The involvement of MFT in woman is more than that in man. Multiple lesions commonly present small tumors located predominantly in the nalolabial folds symmetrically. Most of the tumors are dome-shaped, skin-colored, firm

总之，毛发上皮瘤是一种高度外显的常染色体显性遗传病，女性发病多于男性，以沿鼻唇沟对称分布的乳白色半球形或圆锥形丘疹为皮损特征，无恶化趋势，组织病理为角质囊肿与肿瘤岛，同一家系中不同的患者表现度不同

Methods The Epidermal stem cell were isolated by adhering to collagen type IV after obtained by digesting human foreskin with Dispase Ⅱ and Tryp and culture in vitro in K-SFM. The expressions of β1-integrin and keratin 19 (K19) in epidermal stem cell were detected with immunocytochemical methods,and the colony forming efficiency was also studied .

中性蛋白酶和胰蛋白酶两步法从手术切除的人包皮组织中分离表皮层和真皮层，并获得表皮单细胞悬液，采用Ⅳ型胶原铺板选择性粘附、分离和角质形成细胞无血清培养基培养表皮干细胞。

Result It was found that L. fulvotomentosa possessed the characters of xeromorphic structure, such as small leaf area, dense floss under the leaf surface, high stoma density, small opening degree, thick cuticle, well-developed xylem and palisade tissues, developed conducting tissue.

结果］研究发现黄褐毛忍冬叶具典型的旱生结构特征：叶片面积较小，密被绒毛，气孔密度大、开度小，角质层和细胞壁较厚，木质部和栅栏组织发育良好，维管系统发达。

The natural plant active factors enhance the immunity of involucra and horny cells, improve the blood circulation in capillary vessel, and strengthen the ability of water supply to skill cells.

浓缩的玫瑰精油，有效重建皮肤支撑组织，促进肌肤纤维蛋白的再生，天然植物活肤因子，可增强皮脂膜与角质细胞的防御力，改善毛细血管循环，增强肌肤细胞持久补水能力，达到肌肤水嫩柔光滑，永葆青春之目的。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。