同质的

RESULTSdiabetic rats showed typical symptoms involving elevated serum glucose and weight loss (2)The rats in DM+VaD group reacted slower and made more error numbers in Y-maze than the rats in VaD group did, with a prolonged total reacting time in a whole day.(3)More neurons with serious damages, such as edema, ischemia or pyknosis could be found in DM+VaD group than in VaD group. More disarrangement of cone neurons, obvious glia proliferation, and more neuron apoptosis were found in CA area of hippocampus. CONCLUSIONS (1)2-VO in STZ-induced diabetic rats succeeded in establishing VaD animal models.(2) The cognitive dysfunction induced by VaD rats had been deteriorated by diabetes mellitus.(3)Morphology evidences proved that diabetes mellitus aggravated brain damages induced by VaD.PART II Effect of diabetes mellitus on the cholinergic nervous systemin CA1 area of hippocampus of VaDOBJECTIVE To estimate the role of cholinergic nervous system in hippocampus during the process of cognitive dysfunction aggravated by diabetes mellitus in DM+VaD group. METHODS Observe the changes of ChAT protein by immunohistochemistry stain. Chose three rats randomly from each group at each pointat two week, four week, and eight week, then sepa

经腹腔注射链脲佐菌素诱导慢性实验性糖尿病，1周后永久性结扎双侧颈总动脉(2-VO)制作VaD模型记录术后2周、4周和8周各组大鼠的体重及血糖；应用Y-迷宫检测空间定向学第二军医大学博士论文中…丈摘…要1ia；一色恤~﹁染澎糕行HE染色观察组织病理学孪叱；胶质细胞原纤维酸性蛋白protellZ，Cf冰尸标记观察星形胶质细舱的激活情况、橄声软公点娜育票票众糯黑橄居端粗默孺篇筑价井袱第二部分糖尿病对血管性痴呆大鼠海马c心区胆碱能神经系统的影响探讨海马CAI区胆碱能神经系统在糖尿病加重确D一大鼠认知障碍中所实验动物及分组同第一部分，应用免疫组织化学染色方法现察海马CAI{介狱牛第晕军l袭拔常博粗{论义

Several inducers cicada exuviae, colloidal chitin, horsefly cuticle, shrimp, maggot and silkworm chrysalis were compared with their effects on production of cuticle-degrading protease of entomopathogenic fungus Metarhizium anisopliae.

研究了不同碳氮源对金龟子绿僵菌产生与分解昆虫外壳相关的蛋白酶活性和同工酶谱带的影响。结果表明：蝉蜕、虻虫壳、蝇蛆壳、蚕蛹壳、虾壳、胶体几丁质均可使金龟子绿僵菌产生蛋白酶，虾壳和胶体几丁质所产生的蛋白酶比活性最高，蝉蜕次之。

Lividans. Using pIJ903 bearing tsr gene as a vector, the two furthermost fragments of the cluster, 4. 0kb and 1. 5kb in size respectively, were inserted into it. To facilitate the detection of gene replacement, apr gene was placed in the middle of the two inserts. OriT from E coli plasmid RK2 was also incoporated into the vector, therefore, pIJ903 derivatives can be mobilized from E.

在具有硫链丝菌素抗性基因的pIJ903的单—BamHI位点，同向插入了FR-008生物合成基因簇两个最远端的4.0kb和1.5kb片段，并在二者之间插入了可在链霉菌FR-008和变铅青链霉菌中表达的阿泊拉霉素抗性基因，同时也插入了有助于将质粒引入链霉菌的oriT片段，从而构建出了置换整个基因簇的基因置换质粒pHZ691。

A pair of primers that contained flanking hydropathic amino acid codons were synthesized, to amply the sequence coding for 10~34 aa in the precursor sequence. The amplified fragment was inserted into pRSET-A to generate the first double repeat of the precursor gene. By utilizing a pair of isocaudamer BamH I and Bgl II sites, and another downstream Hind III site of plasmid pRSET-A, following a series of simple double digestions and ligation of the resulted products, a series of repeat (3, 4 and 6) precursor peptide fragment genes were derived.

本实验设计一对两侧含编码疏水性氨基酸密码子的引物，经过扩增前导序列10~34aa基因序列，并重新克隆入质粒pRSET-A构建串联二聚体后，再利用质粒pRSET-A的BamH I / Bgl II同尾酶克隆位点，经一系列简单的酶切和连接，快速构建这一前导肽中不含组氨酸标签序列的串联多聚体基因，并成功表达其六聚体重组蛋白。

The operating principle and performance of time-of-flight mass spectrometer were introduced.

介绍了飞行时间质谱仪的工作原理及性能特点、莱钢4号转炉应用的飞行时间质谱炉气在线分析系统的组成、安装布局及其同其他生产设备间的相互衔接，以及在现场达到的性能指标。

Moreover, all the signals on X and Y only located in the heterochromatic regions, showing the same distribution with those of C-band.

所有X染色体上的信号是一致的，而X、Y染色体上的信号分布则彼此不同。X、Y染色体上的杂交信号区域均集中于异染色质区，信号分布模式同X、Y上异染色质分布模式完全吻合。

ResultsThe glandular cell in the endometrial implant after therapy with middle or high-dose of (10,15 gkg-1d-1) XiaoChaiHu Decoction showed characteristic features of apoptosis which displayed by the cell decreased in size, karyopyknosis , cytoplasmic and nuclear chromatin condensation , density increased and a lot of apoptotic bodies among cell. Whereas some stromal cell displayed degeneration and necrosis. The protein expression of Fas and Caspase-3 in endometriotic tissue of XiaoChaiHu Decoction group was higher than that in the endometrium.

结果中、高剂量小柴胡汤（10，15 gkg-1d-1）治疗后，异位内膜有较多腺上皮细胞出现凋亡的特征，表现为细胞体积变小，核固缩，胞浆和核染色质凝集，密度增高，细胞间凋亡小体，同时间质细胞中可见一些坏死细胞；异位内膜Fas蛋白、Caspase-3蛋白的表达水平明显高于其在位内膜。

In order to improve the accuracy and sensitivity in detecting of chitinase isozymes from Trichoderma. spp, a rapid sensitive method is established.

为提高木霉几丁质酶检测方法的准确性和灵敏度，建立一种快速检测几丁质酶同工酶的方法。

Methods Porous heterogenous deproteinication boneof pig obtained by physiochemical process and osteoblast acquired from the cranical bone of fetal rabbits were cultured 10 days in vitro and explanted into the left side of dorsa muscle of 30 adult rabbits.

将经过物理化学方法处理制得的冻干猪脱蛋白型松质骨与胎兔颅骨来源的成骨细胞体外培养 10d后，在无菌条件下植入 3 0只成年新西兰兔背部肌肉内，对照组为同体单纯植入猪脱蛋白型松质骨。

Results were shown as followings:(1) Sodium selenite at 0～2.5 μmol/L significantly increased the antioxidative capacity of L-02 cells without having remarkable impact on SMMC-7721 cells;(2) Sodium selenite at concentrations above significantly increased telomerase activity, hTERT gene expression and telomere length of L-02 cells without significant impact on SMMC-7721 cells;(3) Sodium selenite at higher concentrations (larger than 5 μmol/L) resulted in peroxidation of L-02 cells, while scutellarin significantly counteracted its effect;(4) Selenium-rich amino acids from silkworm pupas in the range of 0.5～2.5 μmol/L Se significantly inhibited SMMC-7721 cell growth, induced apoptosis and cell cycle change, and the generation of reactive oxygen species. In contrast, sodium selenite and selenomethionine only had weak impact on them at the same concentrations;(5) A new selenium-containing protein was found from selenium-rich silkworm pupas, which is worthy to be study further;(6) An expression vector containing ansense RNA of hTERT gene were constructed and used to transfect SMMC-7721 cells. They were observed to inhibit hepatoma cells.

结果如下：（1）0～2.5μmol/L亚硒酸钠显著性增强L-02细胞的抗氧化能力；而对SMMC-7721细胞的作用不显著；（2）该浓度硒显著性提高L-02细胞端粒酶活性、增强hTERT基因表达和延长细胞端粒长度；而对SMMC-7721细胞的作用均不显著；（3）高浓度硒（5μmol/L以上）显著性抑制L-02细胞生长、致细胞过氧化，灯盏花素能拮抗硒所致过氧化、降低硒毒性；（4）0.5～2.5μmol/L富硒蚕蛹氨基酸显著性抑制肝癌细胞SMMC-7721生长、导致细胞凋亡和周期改变、诱导细胞产生活性氧，同浓度亚硒酸钠和硒代蛋氨酸对其抑制不显著；（5）富硒蚕蛹蛋白经分离纯化和鉴定后发现存在一新含硒蛋白，其结构和功能有待研究；（6）通过已有的含hTERT基因质粒，成功构建hTERT反义RNA表达质粒，转染SMMC-7721细胞后对其生长具有抑制作用。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。