细胞

Flow cytometry was used to measure the cells cycle kinetics of the treated cells. Hoechst33258/PI double staining was performed to evaluate the cell morphology. Western blotting was conducted to analyze the expressions of p53, Bcl 2 and Bax. Results 2 ClAdo and 2 CldAdo had different cytotoxicities on the cells, while 2' dAdo had no cytotoxicity on the cells.

以胎盼蓝活细胞拒染法测定药物对细胞生长、增殖的抑制及IC50 ；以流式细胞术观察药物对细胞周期的影响；以荧光双染法（Hoechst33258/PI）观察药物对细胞形态学的影响；以Western blot法观察药物对细胞P53、Bcl 2、Bax蛋白表达的影响。

Results 2 ClAdo and 2 CldAdo had different cytotoxicities on the cells, while 2' dAdo had no cytotoxicity on the cells. 2 CldAdo blocked the cell growth at the phase of S and G2/M, while 2 ClAdo at the phase of G0/G1. 2 CldAdo mainly induced cell necrosis, while 2 ClAdo induced both cell necrosis and apoptosis. Down regulated Bcl 2 expression and up regulated p53 and Bax expression were associated with 2 ClAdo, while 2 CldAdo down regulated Bcl 2 expression and up regulated mildly p53 expression without any effect on Bax expression.

结果 2 ClAdo、2 CldAdo对所研究的细胞均有程度不等的毒性；2' dAdo对各细胞生长、增殖均无明显抑制（c=100 μmol/L即30 μg/mL内）；2 CldAdo明显阻断细胞于S、G2/M期，2 ClAdo阻断细胞于G0/G1期；2 CldAdo 致细胞坏死为主，2 ClAdo 既致细胞坏死又诱导凋亡；2 ClAdo 下调Bcl 2，上调P53、Bax蛋白表达；2 CldAdo小幅上调P53、小幅下调Bcl 2，不影响Bax蛋白表达。

Results In blank group, the hippocampal structure was clearly viewed, dense neurons with plenty cytoplasm and deep-dyed big nucleolus were observed. Neurons were lining up in order with clear border in CA3 region In model group, hippocampal structure was blurred. The number of neurons decreased greatly, and cells were lining up; rregularly with unclear border. In drug group, the hippocampal structure was clear with more neurons than model group. Neurons had plenty cytoplasm and deep-dyed big nucleolus. Cells were lining up in order with clear border.

结果 空白对照组：海马轮廓清晰，CA3区神经元细胞密集，胞浆丰富，核大深染，细胞间排列整齐，界限清楚；模型对照组：海马轮廓模糊，神经元细胞明显减少，细胞间排列松散，界限不清；药物组：海马轮廓清晰，神经元细胞明显多于模型对照组，神经元胞浆较丰富，核大深染，细胞间排列较整齐，界限清楚。

In HeLa cells trasnfected with GFP-BGLF4 expressing plasmids, cells were sorted into two groups with various levels of BGLF4 expression by FACS. We found that these two populations of cells display dramatically different cell cycle profile.

若利用HeLa细胞将GFP-BGLF4转染送入细胞后，对BGLF4表现量多或表现量少的细胞群各别分析其DNA含量，则发现BGLF4表现量高时S-phase细胞明显增加，而且这些细胞的细胞周期将无法离开S-phase往G2/M-phase过渡转换时期推进。

Methods Proliferation,cytotoxicity in vitro and expression of CD11 c of the cells cultured in the two different media were compared.To observe the tumor target cells killed by adˉherent natural killer cellsthrough electroscope.

分别用AIMV及完全培养基培养粘附NK细胞和非粘附NK细胞，比较细胞的增殖能力、杀伤肿瘤细胞的能力、表达粘附分子CD11 c 的能力，并通过电镜对A-NK细胞所杀伤的肿瘤细胞进行形态学观察。

Changdong" showed a noticeable enhancive effect when it was co-administrated with other anti-tumor agents or when it was co-applied with radiotherapy. The action mechanism study showed that an apparent cytotoxic effect of "Changdong" on ten tumor strains in vitro with a quantity-effect relationship was observed. Immunity experiment showed that "Changdong" could induce proliferation of spleen lymphocyte in mice bearing tumor and could improve NK cell" s activity, whereas has no impact on IL-2" s reproduction. It was also noticed that "Changdong" could induce human liver cancer QGY" s apoptosis in vitro, and it happened mainly on G0-G1 phase.

结果："长动"对小鼠移植瘤模型和人体肿瘤裸鼠异种移植均有明显抑制作用，量效关系明显："长动"与放疗和化疗分别联合应用有明显的增效作用：作用机制研究结果：细胞毒性试验研究表明"长动"在体外对10株肿瘤细胞有明显的细胞毒性作用，量效关系明显；免疫学试验表明"长动"可以诱导荷瘤小鼠的脾淋巴细胞增殖，增强NK细胞的活性，对IL-2的产生无明显影响；"长动"在体外可明显诱导人体肝癌QGY细胞凋亡，使细胞阻滞于G0-G1期。

The stereocilia of OHCs are extremely short. We can observe thephenomena of rupture and inosculation of stereocilia, which is alike senile deafness ofICR mouse. The OHCs bodies of bats have two leading characteristics. Firstly, theOHCs bodies are obviously short. The Deiters cell phalanges are of exaggerated, andthe cup formation of Deiters cell body enwrap the bottom of the OHCs.

蝙蝠耳蜗外毛细胞体，主要特征有两点：其一是细胞体明显短，三排Deiters细胞的指突明显与顶表面相连，而且毛细胞体基本被Deiters细胞的杯状膜包裹；其二是外毛细胞体在基底部呈烧瓶状，并不是一般哺乳类动物的试管样形态。

To study the cytopathogenic effect of mycoplasma membrane.the pro- toplasmic membrane of the mycoplasma causing swine enzootic pneumo- nia was prepared by the repeated Freeze-thaw method or the osmotic shock method,and was then inoculated into the rabbit kidney primary tissue cultures for examining their biological activities.The experimental results were as follows:in the cultures inoculated with 25～50μg of membrane protein ,the cytopathogenic effect was considerable.in the cul- tures inoculated with ...

用低渗解体及反复冻融裂解的方法，制备了猪喘气病病原霉形体膜，将所制备的膜制品接种兔肾原代单层细胞，作生物学活性观察，在接种量按蛋白含量计算为25～50微克膜蛋白的细胞管中观察致细胞病变作用，在接种17.5微克膜蛋白的细胞管中作用不明显，接种6微克膜蛋白的细胞管无致细胞病变作用。

So, endomycorrhiza was formed betweenD. candidum roots and strain AR-15. There were several nucleoli and nuclei in thecortical cells next to exodermis when a nucleus transfer across the cell wall wasobserved. Sometimes plant roots were damaged by strain AR-15. The microstructure of D.

真菌AR-18倾向于根生长，在根周围形成了一个包围圈，由根被细胞侵入外皮层通道细胞及其相邻的皮层细胞，然后向其他皮层细胞推进；真菌菌丝也可由皮层细胞侵入外皮层细胞。

Parthenolide is extract from feverfew, it's main component is sesquiterpene, it is commanly used in west country and is mainly used to therapy skin infection, rheumatic disorder, migraine. But recent research indicate that parthenolide can regulate many pathway of signal in the cell, inhibit the cyclooxygenase, TNF-α, interleukin-1 expression induced by lipopolysaccharide in macrophage, inhibit the iNOS expression in human monocyt, inhibit the activity of NF-κB in Hela cell, inhibit the growth of tumor cell and can relieve the myocardial ischemical reperfusion injury and so on. But the invention research about the effection of parthenolide on the VSMC is very rare in the world, so we do some research about the effection of inhibition of parthenpolide on the proliferation of VSMC and the signal transduction mechanism.

小白菊内酯(parthenolide，又名Sesquiterpene lactone)是艾叶菊属黑叶母菊的提取物，主要成分是倍半萜烯内酯，西方国家较为常用，主要用于治疗皮肤感染、风湿病和偏头痛，但近年来发现小白菊内酯能调控细胞内多种信号途径，如抑制巨噬细胞中脂多糖诱导的Cox，肿瘤坏死因子α和白细胞介素-1的表达，能抑制人单核细胞中iNOS的表达，能抑制Hela细胞中NF-κB的活性，抑制肿瘤细胞的生长，同时能减轻心肌缺血再灌注损伤等，但小白菊内酯在VSMC中的干预研究目前国内外非常罕见，为了确切评价小白菊内酯对血管平滑肌细胞增殖的抑制作用及相关的信号转导机制，我们进行了一些研究。

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