细胞原质的

According to the change of chromatin and morphology of cells, the spermatogenesis could be divided into five stages: spermatogonium, primary spermatocyte,secondary spermatocyte, spermatid and spermatozoon.

利用透射电镜观察秀丽白虾的精子发生，并根据染色质及细胞形态的变化将精子发生的全过程划分为五个时期，即精原细胞、初级精母细胞、次级精母细胞、精细胞和精子。

RESULTS: Microscopically, the lesion consisted of abundant collagen fibrils, proliferated histiocytes and numerous infiltrated plasmocytes, lymphocytes and eosinophilic granulocytes. Fusiform or polygonal histiocytes had abundant, granular, eosinophilic cytoplasm or clear cytoplasm containing radially oriented strands or resembled xanthoma cells. Emperipolesis of numerous small lymphocytes was seen in the cytoplasm of some large histiocytes.

结果： 镜下可见丰富的胶原纤维和组织细胞增生以及大量浆细胞、淋巴细胞和嗜酸粒细胞浸润，组织细胞呈梭形、多边形，胞质嗜酸性颗粒状、放射条纹状或泡沫状，一些大组织细胞质内有多量小淋巴细胞。

RESULTS摘要: Microscopically, the lesion consisted of abundant collagen fibrils, proliferated histiocytes and numerous infiltrated plasmocytes, lymphocytes and eosinophilic granulocytes. Fusiform or polygonal histiocytes had abundant, granular, eosinophilic cytoplasm or clear cytoplasm containing radially oriented strands or resembled xanthoma cells. Emperipolesis of numerous small lymphocytes was seen in the cytoplasm of some large histiocytes.

结果摘要：镜下可见丰富的胶原纤维和组织细胞增生以及大量浆细胞、淋巴细胞和嗜酸粒细胞浸润，组织细胞呈梭形、多边形，胞质嗜酸性颗粒状、放射条纹状或泡沫状，一些大组织细胞质内有多量小淋巴细胞。

The alveolitis that produces fibroblast proliferation and collagen deposition is progressive over time.

肺间质发生成纤维细胞的增生，成纤维细胞可以分泌大量的胶原纤维，最终导致了肺间质纤维化。

The ameloblasts are the key cells during odontogenesis, and they have been already cultured in vitro. The amelogenin is the extracellular matrix synthesized and secreted by the ameloblasts, and it plays a crucial role during amelogenesis.

成釉细胞是牙器官形成的关键细胞，国内外已成功离体培养出成釉细胞，成釉细胞合成和分泌的细胞外基质－釉原蛋白在釉质的形成中起着关键作用。

Methods Routine immunization of BALB/ c mice by a tansfected cell line 293T/ B7-H4 as antigens.Then the immunized spleen was fused with SP2/0,a kind of plasmocytoma cells, and screen the positive clones by FCS with the 293T/B7-H4 as a positive control while 293T/ mock as the negative control.

以高表达人B7-H4分子的基因转染细胞株293T/B7-H4为免疫原，常规免疫BALB/c小鼠，采用B淋巴细胞杂交瘤技术进行细胞融合，并以该基因转染细胞293T/B7-H4作为阳性筛选细胞，以转空质粒的对照细胞293T/Mock作为阴性对照细胞。

Both Fas and NO can lead chondrocyte apoptosis respectively and cause articular cartilage destruction. IGF-Ⅰ, TGF-β, bFGF, BMP and other growth factors are polypeptide agents that can influence cell activity by signal convection. They can accelerate chondrocyte proliferation and proteoglycan synthesis, play the local regulation action on formation and plerosis of bone and cartilage tissue by autocrine or paracrine. They have the ability to induce cartilage formation. Some investigations showed that growth factors can influence chondrocyte metabolism, synthesis of specific Ⅱ type collagen and proteoglycan by co-operation and inhibition. 1. 3 Situation of OA therapeutics The therapeutic methods of OA mainly comprised non-drug treatment, drug treatment, operation treatment, tissue and genetic engineering, et al. Drug treatment is the chief method among them.

若其活性发生改变，则将导致关节软骨基质成分的丢失和进行性破坏；软骨细胞凋亡与OA的发病密切相关，Fas与NO可各自独立介导软骨细胞凋亡，造成关节软骨破坏；IGF-Ⅰ、TGF-β、bFGF、BMP等生长因子是一组通过细胞间信号传递影响细胞活动的多肽因子，具有促进细胞生长、增殖与合成等作用，可通过自分泌或旁分泌方式对骨和软骨的形成和修复起局部调节作用，可促进软骨细胞增殖、分化与蛋白多糖的合成，具有较强的诱导软骨形成的能力，研究表明多种生长因子相互促进、相互抑制，以协同或拮抗方式影响软骨细胞代谢，影响软骨细胞特异性Ⅱ型胶原和蛋白多糖的合成分泌。

Methods M. penetrans was cultured and its LAMPs were extracted. Mouse macrophages were stimulated with M. penetrans LAMPs to analyze the production of nitric oxide. Cell prolification was detected in M. penetrans LAMPs-stimulated mouse macrophages by MTT assay.

用SP-4培养基培养穿透支原体并提取其脂质相关膜蛋白，用提取的脂质相关膜蛋白刺激小鼠巨噬细胞，以ELISA法检测NO的产生，并用MTT法检测其对小鼠巨噬细胞增殖的影响。

Methods:Human CD80 cDNA was transfected into B16 melanoma cells by lipofectin-mediated gene transfer before the expansion of tumor cells were tested by MTT method in vitro;C57BL/6 mice were inculated subcutaneously either mock-transfected B16 cells (B16-neo)or CD80-transfected B16 cells (B16-CD80),then the latency,survival times and tumor mass growth were investigated.The lymphocytes were examined for both proliferation indices and specific cytotoxic activity by MTT method and improved LDH-releasing method,after syngenic Mixed Lymphocyte tumor cultures.

通过脂质体介导将CD80基因导入小鼠黑色素瘤B16细胞后，利用SABC法检测CD80的表达；MTT法测定肿瘤细胞体外增殖能力；将肿瘤细胞接种至同源小鼠皮下后观察成瘤期、荷瘤小鼠存活期及肿瘤结节生长速度；在同源淋巴细胞肿瘤细胞混合培养后，通过测定淋巴细胞增殖指数和CTL杀伤活性检测肿瘤细胞的免疫原性。

BACKGROUND: Basic fibroblast growth factor can accelerate the bone marrow mesenchymal stem cells proliferation and differentiation into nerve cells, which is considered as a mitogen of glial cells.

背景：碱性成纤维细胞生长因子可以促进骨髓间充质干细胞的增殖和向神经细胞方向分化，并被认为是胶质细胞的分裂原。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。