原细胞

They widely exist in many tissues and cells in form of proenzyme.

Caspase-3以酶原的形式存在于多种组织和细胞中。

Heat shock protein 70 (HSP70) is an important member of heat shock protein family and play an important role in animal cell growth, development, and prolificacy, gene expression and protein synthesis, folding and transportation.

热休克蛋白(Heat shock protein， HSP)是指细胞在反应刺激原的诱导下所生成的一组蛋白质，特别是环境高温的诱导。

Objective: To study the effect of cytokines on promoter activity of α2 procollagen gene.

摘 要 目的：探讨细胞因子对小鼠α2型前胶原基因上游启动子活性的影响。

In many gymnosperms the nuclei divide within the pollen grain to produce a small number of cells (2-40 depending on the group )representing the male prothallus.

在许多裸子植物中，细胞核在花粉粒中分裂以产生少量的细胞（2～40个，取决于不同种类），代表雄性原叶体。

Anther primordia are formed by early March, and composed of a protoderm and a centeral cell mass.

三月上旬，花药原体形成，由原始表层和中央细胞团组成。

Methods The hemin and zine protoporphyrin-Ⅸ were added in the cultured endothelial cells to induce and inhibit the expression of HO-1, respectively.

体外培养人脐静脉内皮细胞，用氯血红素和原卟啉锌，以诱导和阻断HO-1的表达。

Methods Mouse macrophages were stimulated with Mpe LAMPs to analyze the activitation of NF-κB, and the effect of pyrrolidine dithiocarbamate, an inhibitor of NF-κB, on NF-κB activation was also studied by indirect immunofluorescence and western blot.

用从穿透支原体中提取的脂质相关膜蛋白刺激小鼠巨噬细胞，经Western blot和间接免疫荧光等方法检测NF-κB是否被激活，以及NF-κB抑制剂PDTC对NF-κB活性的影响。

Administration of quinidine, E4031, and chromanol 293B significantly affected repolarization, as manifested by prolongation of the local field potential duration.

应用奎尼丁，E4031和色原烷醇293B会显著影响心肌细胞的复极化过程，表现为局部动作电位时程延长。

Results］the gross morphology of the tendons showed the experimental group had lesser adhesion and better reactiveness than that in the control group.the fibrin had degraded at 3 weeks. cell tracing showed that the labeled bone marrow derived mesenchymal stem cells remained viable and presented in the intratendinous region for at least 6 weeks, becoming more diffuse at later timepoints.at 3 weeks, collagen fibers appeared more organized and there were better morphometric nuclear parameters in the treatment group. at 6 and 12 weeks, there were no differences between the groups with regard to morphometric nuclear parameters.

结果］实验组相比对照组肌腱大体观察粘连差，肌腱活动性好。3周后纤维蛋白载体即降解，细胞示踪结果显示标记的骨髓间充质干细胞至少6周内仍可保持活性并存在于肌腱组织中，但之后逐渐扩散。3周时，实验组与对照组相比胶原纤维排列更为有序，且胞核形态结构更规则，但在6周及12周时，实验组与对照组胞核参数测定无统计学意义。3周时实验组比对照组具有更强的的生物力学特性，但之后则差别不明显。

Results there were unconsciousness, respiratory rhythm disturbance and hyporeflexia of pupil light reflex immediately after injury, and reactiveness decrease and activity retardation still existed even after resuming consciousness. at anatomical scene, subarachnoid hemorrhage or cerebroventricular haemorrhage were widespread. at an early stage, there were swelling, collapse, and axonal retraction ball formation at cortico-medulla junction, callosum, brainstem, and cerebellar white matter under microscope. but at the later stage, gitter cell proliferation and nest-like aggregation were major pathophysiological changes at focal brain tissue.

结果 伤后大鼠均即刻出现原发昏迷，其中2只于损伤后20 min内死亡，余持续时间1-30 min不等；伤后大鼠呼吸节律紊乱，瞳孔对光反射减弱或消失，醒后均有程度不等的反应性下降，肢体活动迟缓；肉眼可见广泛蛛网膜下腔出血或脑室出血；光镜下可见皮髓交界区、胼胝体区、脑干、小脑白质等部位的神经轴索有不同程度的肿胀、断裂、轴索球形成，后期有小胶质细胞增生，局部呈巢样聚集。

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