基质的

Results By using optical microscope,the neurocytes of hippocampus in experimental group were observed to denaturalize,tumefy,destroy and disappear.And under electron microscope,the karyon was irregular,nucleoles deviated,chondriosome tumefied,crista collapsed,membrane was damaged,substance cavitated.Such changes were more evident with the increased paroxysm of epilepsy,the parameters between control group and operation group had no difference（P＞0.01）.But make a monofactorial variance analysis among cells' number,area,circumference and integral optical density in different groups,it showed that there were significant differences between optional two groups（P.01;at the same time,the more serious injury in hippocampus,the more powerful GFAP immunoreaction was.

结果： 实验组海马区光镜下可见神经细胞变性、肿胀、坏死及神经细胞脱失改变，电镜可见细胞核形态不规则、有切迹、核仁偏位、线粒体肿大、嵴断裂、膜破损和基质空化等改变，随癫痫发作次数增加上述改变越明显，对照组与手术对照组比较，各参数差异无显著性（P＞0.05），将不同组别大鼠细胞数、面积、周长、积分光密度分别作单因素方差分析，不同组别间均差异有显著性（P.01），同时观察到海马区GFAP免疫反应阳性的胶质细胞随海马损伤的加重而GFAP免疫反应增强。

The mechanism probably is that Pishang can inhibit the growth, movement and adheresion to extracellular matrix and endothelial cell of liver tumor cells, up-regulate the expression of nm23, down-regulate the expression of CD44, MMP-2, and inhibit the tumor neovascular by supressing the vascular endothelial cell, down-regulating the expression of VEGF, damaging the primitive mesenchymal cells and inhibiting neovascular gemmation.

砒霜具有明显的抗肝癌细胞作用，并有一定的抗侵袭与转移作用，其机制可能与其能抑制肝癌细胞增殖、迁移、阻止肝癌细胞与细胞外基质和内皮细胞粘附、上调肿瘤转移抑制基因nm23表达、下调肿瘤侵袭分子CD44、MMP-2表达以及通过抑制内皮细胞增殖、下调VEGF表达、损伤间充质细胞、阻止新生血管芽生等途径从而抑制肿瘤新生血管形成有关。

Histological observation: Four weeks after implantation, porcine cancellous bone scaffold/bone marrow stromal cells complex appeared new bone formation and scaffold's degradation, which significantly increased in 8 weeks; In 12 weeks, new bone continued to increase and changed gradually to mature bone, a small amount of the Havers system was seen, the trabecular bone was not typical, capillary proliferated obviously, few residual scaffolds were seen, and no inflammatory cells were observed.

组织学观察：猪松质骨支架/骨髓基质干细胞复合体植入后4周开始有新骨生成，支架开始降解；8周时新骨的形成及支架的降解都明显增加；12周时新骨继续增加，逐渐向成熟骨组织转变，可见少量哈佛系统，但骨小梁尚不典型，毛细血管增生明显，少量支架残留，未见炎症细胞。

Methods:Marrow stromal cells were obtained from the dual ilium of three adult dogs.

从狗的髂骨穿刺骨髓分离骨髓基质细胞，应用脂质体转染VEGF165基因，以RT-PCR检测转染的基因表达。

Especially, just direct mechanical intermix can in some degree induce fragmentation of clay particles to form some nanodimension dispersed particles.

直接混炼也会造成粘土晶层一定程度的剥离，从而在基质中产生一些纳米尺度的分散质。

Keeping［element］/［Mg］concentration ratio lower than 0.05 can minimize isobaric interference and matrix effects.

控制［元素］/［Mg］的浓度比在0.05范围内，可以忽略同质异位素的干扰和基质效应。

Prussian blue staining showed numerous blue stained fine particles in the cytoplasm of 99% BMSCs.

普鲁士蓝染色结果显示99%以上骨髓基质细胞的胞质内出现细小的蓝色铁颗粒。

Electro microscope analysis showed that NO promoted the chloroplast development, as indicated by increased number and size of chloroplast in both the mesophyll cell and bundle sheath cell of the leaves, and well-developed stroma lamellae and grana as well as increased numbers.

电镜观察结果证实，NO促进了玉米叶片叶肉细胞和维管束鞘细胞中叶绿体的发育，叶绿体数量增多且体积增大，基质片层和基粒数量明显增多且结构完好。

The reinforced nanocomposites are usually prepared by dopping particles or fibers with nanometer scale in matrix and then sintering under vacuum or by precipitating nanophase from matrix.

颗粒增强纳米复合材料一般将具有优异力学性能的纳米颗粒或纤维掺入到基体材料中，再经在真空等静压烧结获得，或者控制热处理条件使基质晶淀析出纳米晶第二相而获得。

As support, Agarose can benot only used in normal condition, but also in denaturalization (for example, 6 mol/Lhydrochloric acid carbamidine or 8 mol/L urea). Herein, the preparation of IMACmatrixes were conducted using agarose as support, carboxymethylated aspartate as chelating ligand and Co~(2+) and Ni~(2+) as chelating center ions.

本实验用琼脂糖作为基质，选用四配位，与金属离子有较强作用力的羧甲基天冬氨酸为配基，以Co~(2+)、Ni~(2+)作为螯合金属离子，合成了一系列金属螯合亲和色谱填料，并对其蛋白质分离性能进行了研究。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。