原细胞

Since the altered dorsal-ventral domain was started at early gastrulation and became more obvious at the late gastrulation stage, P5 and P4 both may affect cell fate maintenance through regulating cell migration during gastrulation period.

因为cyp11a1表现下降的鱼卵是在原肠期刚要开始的时候才开始出现不正常腹部组织增大，而且随著时间的增加而更加明显，所以P5和P4可能是藉由影响原肠期的细胞移动进而去影响后来的细胞分化。

After 21 days, the fibroblasts were less, capillary was hyperemic and expansive, with the collagen began to reconstruct between the acupotomology intervention group and the blockade control group.

造模后21 d针刀干预组与封闭对照组大鼠组织内成纤维细胞较少，毛细血管增生扩张，胶原重建开始；模型对照组成纤维细胞较多，胶原分泌增多。

Result The flexibility of the scaffold material was powerful. The load-elongation curve of the mechanical testing was similar to that of ACL, the maximum load, the ultimate stress and the Young's modulus of the scaffold materials were 52.61 N, 14.96 MPa and 202.08 MPa respectively. Human ACL cells displayed the representative characteristercs of the ligamentous fibroblasts, and synthesized extracellular matrix, such as type Ⅰand Ⅲ collagen protein. The scaffold materials had no cytotoxicity. Human ACL cells adhered, grew and proliferated well both on the surface and in the holes of the scaffold materials.

结果］韧带支架材料的柔韧性强，拉力测试的负荷－拉伸曲线与韧带的拉伸曲线相似，其最大负荷、极限应力和弹性模量分别为52.61N、14.96MPa和202.08MPa；体外分离培养的人前交叉韧带细胞呈典型的成纤维细胞特征，能在体外分泌Ⅰ、Ⅲ型胶原等细胞外基质；支架材料无细胞毒性，人前交叉韧带细胞可在支架材料上黏附、生长并分泌细胞外基质。

Results Fibroblast ceils were divided into three groups, and cell proliferation was inhibited in the low-dose group, but promoted in the middle-dose group, while the collagen synthesis was inhibited in the middle-dose group, but pro- moted in the high-dose group.

结果激光照射剂量由低至高可分为3个剂量段，激光强度在第一剂量段时的生物调节效应主要表现为抑制细胞增殖，在第二剂黾段时则能促进细胞增殖并抑制胶原合成，在第三剂量段时间则可促进腔原合成，且每个剂量段内的激光生物调节效应与照射剂量间大致单线性相关。

Here, similarities between archaebacteria and eukarykaryotic otic cells in many aspacts including DNA duplication, transcription, translation and histones, chromatin, proteasome were introduced. Finally, the evolutionary position of archaebacteria and their significance to onery gin of the eukaryotic cells were discussed.

结合国际上对原细菌，尤其是它与真核细胞在许多方面（包括DNA复制、转录和翻译整个中心法则，组蛋白、染色质及蛋白酶复合体等）密切的亲缘关系的研究结果，对原细菌的进化地位及其对揭示真核细胞的起源进化问题的意义进行了探讨。

There are four kind of isoforms of endothelin in human and other mammals named ET-1, ET-2, ET-3 and ET-β, which are slightly different in construction and pharmacological effect. In human beings, ET-1 is the dominative subtypes. ET-1 remains in blood at a low level about 5ng per liter on physical state. It is synthesized, stored, released and metabolized locally. The half-life of ET-1 is about 1 hour. ET-1 is the most potent vasoconstrictive factor till now, and it is more functional in vein than in artery. In vascular bed, there are two kind of ET receptors. Type A mainly located in smooth muscle cells, whereas type B in endothelial cells. The latter can stimulate intimal hyperplasia via a parasecretion way and activate some oncogenes such as c-fos and c-myc and then enhance their expression. These alterations result in constriction of blood vessels, thus the SMC steps into proliferate state from silent state.

人及哺乳动物体内有四种结构及药理学性质略有差异的异物体，分别为ET-1、ET-2、ET-3、ET-β，而在人主要是ET-1，在生理条件下，ET-1在血浆中含量较低，约为5ng〓，故ET-1不是一个循环激素，而是局部合成释放，局部起作用的活性物质，半衰期约1小时，ET-1是目前已知的最强的血管收缩剂，对静脉的作用比动脉强，在血管床，ET受体有A、B两型，A型主要分布在平滑肌细胞，B型主要分布在内皮细胞，它可以通过旁分泌途径刺激内膜增生，具有有丝分裂原效应，可以激活某些癌基因如C-fos、C-myc使其表达增强引起血管收缩，使静止期SMC进入增殖期，还可以通过信号传导途径，与bFGF、GTF-β、PDGF等生长因子协同作用，起共有丝分裂原作用。

Tendon cells 5 x 10(4/ml derived from phalangeal flexor tendon of SD rats were co-culture with CPPF scaffold or CPPF scaffold resurfaced with collagen type-I within 1 week. The co-cultured specimens were examined under optical and electric scanning microscope.

将体外培养 SD大鼠原代趾屈肌腱细胞，以 5×10 6/ ml浓度与 CPPF辫状支架或型胶原涂层的 CPPF辫状支架进行体外混合培养，组织学观察材料与细胞的吸附情况。

Objective To investigate the potential pathogenicity of Mycoplasma penetrans (M. penetrans), and to study nitric oxide production and cell prolification in lipid-associated membrane proteins-stimulated mouse macrophages.

目的 检测穿透支原体脂质相关膜蛋白能否诱导小鼠巨噬细胞产生一氧化氮及其对细胞增殖的影响，以了解穿透支原体潜在的致病性。

Results The BMC surrounding tumor mass and strands showed multi-layered or dissolution, pseudopodia were seen extended from tumor cells, and contained numerous microvesicles.

瘤细胞伸出伪足样突起，且胞浆内含大量微泡，该处基膜消失，胶原原纤维溶解，肿瘤细胞围绕血管部位的血管基膜增厚，纤维组织增生。

Results:(1) In clinical pathology, swelling, denatured, even necrosis and putrescence could be picked out; Collagen fibers in tendon remarkedly swelled, and tissue structure disarranged, and collagen even ruptured, broken and dissolved; Obvious denature, apoptosis and necrosis could be found in tendon cells. There appeared to be a big accumulation of inflammatory cells.

结果 （1）临床病理组织学观察发现：肌腱组织肿胀、变性、甚者坏死、腐败；肌腱内胶原纤维肿胀明显、组织结构紊乱，失去正常排列，甚者出现胶原断裂、破碎、溶解等现象；腱细胞可见明显的变性、凋亡和坏死；病变部位可见大量炎性细胞聚集。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。