上皮内的

The results suggest that Smad4,one of the intracellular downstream molecules of TGF-β superfamily,and an inductive signal mediating epithelial-mesenchymal interaction,may regulate the differentiation of ameloblast and odontoblast cells,and modulate dentinogenesis and amelogenesis.

结论首次观察到Smad4信号分子在人牙胚发育过程中的表达，Smad4作为TGF-β超家族细胞内信号分子，可能参与上皮间充质的相互作用，同时也参与成釉细胞和成牙本质细胞的分化以及牙釉质和牙本质的形成。

Ravan Napas can reduce the expression of ICAM 1 and HO 1 on broncho epithelial cells and thus inhibits the aggregation of the inflammatory cells and the release of the inflammatory media, as a result leads to less inflammation of bronchia. Such inhibitory way might be one of the possible mechanisms of Ravan Napas in treating asthma.

纳气平喘颗粒通过调节支气管上皮细胞ICAM 1和HO 1的表达，可抑制炎性细胞在气道内聚集及其炎性介质的释放，减少气道变应性炎症，这可能是纳气平喘颗粒治疗哮喘病的部分机制。

Chicken coccidiosis is a kind of protozoa disease and caused by a few Eimeria species which parasitize in intestinal epithelial cells, and it causes huge economic loss to poultry industry.

鸡球虫病是由艾美耳属的多种球虫寄生于肠上皮细胞内所引起的一种原虫病，给养禽业造成巨大的经济损失。

To investigate the prevention of anti-apoptosis drugs (sodium ferulate, SF; schisandrin B, Sch B; flos chrysanthemi, FC; semem planagines, SP) on lens epithelial cell damaged by oxidative stress, and to study the changes of intracellular-free calcium, cyclic adenosine monophosphate and cyclic guanine monophosphate, in order to disclose the mechanism of signal transduction in cellular and molecular level.

目的 本研究旨在探讨细胞凋亡抑制剂阿魏酸钠、五味子乙素、菊花、车前子对氧化损伤的晶状体上皮细胞内Ca2+、环磷酸腺苷、环磷酸鸟苷的影响，从细胞信号转导角度揭示天然药物防治白内障的细胞和分子学机制。

The wound tissue necrosis rate of the trial group and the control group ＜25% in two weeks were 32(96.9%) and 8(27.59%) respectively, and wound complete debridement rates were 90.91% and 6.70%. Wound area reduction rates were 47.42% and 20.21%.There was a significant difference between the two groups (P＜0.05～0.01). It suggests that collagenase can promote granulation form and epithelization.

结果表明，治疗组和对照组两周内创面组织坏死率＜25%的例数分别为32(96.9%)和8例(27.59%)；创面完全清创率分别为90.91%和6.70%；创面面积分别缩小47.43%和20.21%，均具有明显差异(P＜0.05～0.01)，同时也表明，胶原酶对创面肉芽的形成和上皮化具有明显的促进作用。

This article reports a case of a 61-year-old patient with Soc of tongue who had undergone a left free radial forearm flap reconstruction operation after a partial glossectomy and left modified radical neck dissection. Postoperatively 1 month, the flap had changed color and texture under naked-eye inspection, and resembled the oral mucosa.

虽然此皮瓣已被广泛应用，但对愈合之过程仍有争议及未解之处，过去的研究发现利用游离桡前臂皮瓣重建舌体后，临床追踪发现游离皮办在口内的环境下，其皮瓣的色泽与质感均有改变，且从肉眼上观察具有红化的现象，与正常口腔黏膜相似。

About 4 days post amputation, cells in some areas in the out epidermis and inner parietal peritoneum near the end of the stump are induced by injury to dedifferentiate into stem cells and then proliferate forming stem-cell masses, which then invaginate into the interior dermis. The dermal cells are then induced by those invaginating stem-cell masses to dedifferentiate.

从第4 d起，近创伤处的表皮层和体腔上皮中部分细胞发生了脱分化形成了干细胞，并增殖形成了干细胞团，然后向真皮层内陷，并诱导真皮层组织发生脱分化，最终在残腕体壁的不同部位形成了众多干细胞原基，是进一步再生所需的细胞库。

As well as enhancing the specification of distal lung epithelium, this protocol was found to yield cells with a phenotype most closely resembling that of lung-committed progenitor cells present in the foregut endoderm and the early lung buds during embryonic deelopment.

除了提高末梢肺上皮的数量，这一个方法被发现产生了在胚胎发育期间最接近表达在前肠内胚层和早期肺芽表型的细胞。

RESULTS: Positive immunohistochemical signals of MMPs and TIMPs could be found in fetal skin at different gestational periods.

结果 MMP -2、MMP -3、MMP -9、TIMP -1和TIMP -2在不同时期的胎儿皮肤内均有表达，它们主要分布于表皮细胞、成纤维细胞、毛囊和汗腺上皮细胞以及血管内皮细胞的胞浆中。

Seen here are epithelial squames in a peripheral pulmonary artery.

这里显示的是肺外周小动脉内的角化上皮。

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