异细胞的

The activated donor-type NK cells could prevent gVHD and produce significant GVT effects and also resulted in greater hematopoietic reconstitution if they were at the initial stage of allogeneic BMT in mice. Thereafter, the activated donor-type NK cells were detrimental and could exacerbate the subsequent GVHD, these results also demonstrated that GVT and GVHD could be dissociable phenomena.

①在小鼠异基因骨髓移植的初始阶段，输注供鼠的活化NK细胞能促进造血重建，预防GVHD并同时增强移植物抗肿瘤效应；输注骨髓细胞之后，输注供鼠的活化NK细胞则起到加重GVHD的不良作用；②GVT和GVHD是能够被分开的。

Methods Twelve samples of each ectopic endometrium and normal endometrium were separated and cultured in vitro.

对12例内异症患者的异位内膜及12例正常育龄妇女的在位子宫内膜进行体外细胞分离、培养。

Results: electronic microscope showed that in prednisone group heterochromatin increased in some cells, entoblast was not obvious in some cells, fat drops were small and few, mitochondria vacuole were common, and myelin figure was found in smooth endoplamic reticulum. the ultrastructure in yc group was almost normal and megamitochondrion formation was common. a large amount of fat drops were found in cytoplasm in gw group and little improvement was found compared with that in prednisone group.

结果： 电镜结果显示：激素组个别细胞异染色质增多，核仁不明显，脂滴显著变小变少，线粒体空泡化常见，有滑面内质网髓鞘样结构形成；养阴组电镜结构基本正常，其特征是细胞内有较多的巨大线粒体形成；桂附组较激素组改善不明显，其特征是胞质内可见大量脂滴。

During the esophageal canceration course, DNA content and heteroploid rate increased significantly. Cell cycle distribution changed obviously. Expressions of relevant cell cycle regulatory elements were abnormal.

食管上皮癌变过程中，DNA含量及异倍体率增加，细胞周期分布发生了明显的改变，细胞周期相关基因蛋白表达异常。

If 〓mRNA positive expression, its DNA heteroploid type display as triploid or hypodiploidy, if 〓mRNA negative expression, its DNA heteroploid type display as hyperdiploidy、tetraploid or Bistem line. These from one flank demonstrate the role of 〓 gene suppress the proliferation of malignant tumor

表达阳性者，其DNA异倍体主要表现为三倍体或低二倍体，〓表达阴性者，其DNA异倍体主要表现为高倍体、四倍体和双干系，从一个侧面显示出〓基因的抑制恶性肿瘤细胞增殖的作用。

The experimental results revealed that 60% of cell decay in a nitrifying system was caused by activity decrease and 40% was caused by cell death. In a heterotrophic system, however, activity decrease was responsible for 80% of cell decay, and the other cell decay for 20% was caused by cell death.

结果表明，硝化系统细菌在衰减过程中由细胞活性降低引起的衰减约占60%，由细胞死亡引起的衰减约占40%；而在异养系统中由活性降低引起的衰减和由细胞死亡引起的衰减分别为80%和20%。

Objective To investigate the clinical significance of monocyte chemotactic protein-1 (MCP-1) produced by endometriotic tissues.

目的 探讨异位子宫内膜细胞产生单核细胞趋化蛋白-1(MCP-1)的临床意义。

Weeks after operation, around 2 kinds of materials had obvious connective tissue. The histology slice observation, we discovered has connective tissue proliferation, and few inflammatory cell infiltration. And some osteoblast around the material arrangement regulation, around the material had a kind of ossein and the chondroid structure appearance.

术后4W，2种植入材料周围有明显的结缔组织包裹，组织学切片观察，发现有结缔组织增生，其间有炎性细胞浸润，有成骨细胞在材料周围规则排列，有异位成骨趋势，材料周围已有类骨质和软骨样结构出现。

On light microscopy,there was abundant cosinophilic cytoplasm,with the tumor cells being aciniform or tubiform without significant atupia and mitosis.

光镜下瘤细胞排列成腺泡状或管状，细胞质含丰富的嗜酸性细颗粒，细胞无明显异形性和核分裂象。

Self-pollination was brought as the essential reason for causing emptied seeds by former researchers. Based on those studies, potassium antimonate and electron microscopy were used to study the calcium distribution of pollens in the micropylar canal of self-pollinated and cross-pollinated ovules and morphological changes in certain cells undergoing programmed cell death from pollination to fertilization, and observation of histo-chemical changes during microgametopyte development was performed by paraffin section.

前人研究认为自交是华北落叶松产生空粒的主要原因，本论文在此基础，运用焦锑酸钾沉淀法配合电镜观察研究了传粉后到受精前异交控制和自交辅助授粉胚珠珠孔道内花粉的钙分布情况，及此过程中细胞程序化死亡超微结构的变化，并通过石蜡切片研究了华北落叶松传粉后到受精前雌配子体发育过程及细胞内含物的变化，以研究在受精前胚珠内是否存在花粉识别与选择系统，探讨钙信号传导和花粉与胚珠相互作用及细胞程序化死亡的关系。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。