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The binding behavior and kinetics of uncoupling protein with its ligand, the Fourier-transformation infrared spectra of uncoupling protein and its changes during ligand-binding process, the inhibition of Guanosine 5'-Tetraphosphate (G-4-P) and Adenine-β-Darabinofuranoside 5'-triphosphate on the binding of uncoupling protein with GTP were studied.

本文对解偶联蛋白与配基的结合及其结合动力学,解偶联蛋白及其与配基结合过程中的傅里叶变换红外光谱及其光谱变化,鸟嘌呤核苷四磷酸(G-4-P)和9-β-D-阿拉伯糖基呋喃5'-三磷酸对解偶联蛋白与GTP结合的影响进行了研究。

By the nucleophilic substitution reaction of 6-O-tosyl-l,2:3,4-di-O- isopropylidene-a-Z-galactopyranose (3) with some substituted 1, 2,4- triazole-3-thiols (4a ~ 4c) or 1, 2, 3,4-tetrazole-5-thiols (5a~5f), nine 6-S-(substituted triazolyl or tetrazolyl)-l,2 : 3,4-di-O- isopropylidene-a-D-galactopyranoses (6a ~ 6i) were prepared in high yields. Their structures and configurations were analyzed and established by elemental analysis, IR, NMR, MS spectra.

报道了6-O-对甲苯磺酰基-1,2:3,4-二-O-异亚丙基-α-D吡喃型半乳糖(3)与取代的3-巯基三唑或5-巯基四唑4a-4c或5a-5f的亲核取代反应,合成了9个6-S--1,2:3,4-二-O-异亚丙基-α- D吡喃型半乳糖(6a-6i),通过元素分析,IR,NMR和MS确证了上述化合物的结构,并经分子模型计算进行了其构象分析。

Part II The experiment study on anti-tumour effect of dendritic cells derived from peripheral blood monocyte of patients with oral cancer after pulsed by tumour antigen in different ways. Collected 50ml peripheral blood from each patients and volunteers to induced DC in vitro. We parted the test group and control group into three subgroups respectively, untreated group A, freezed and thawn group B, RNA transfected group C. To group A, after induced DCs for five days , we added 200U/mlTNF-α in each hole and cultured on. To group B, we added protein antigen (DC/ tumor cells = 1 : 1 ,each hole) for 4h at 5d, and then added 200U/mlTNF-α in each hole and cultured on. To group C, transfected immature DC with tumor cell RNA(DC:RNA=1×105/ml: 5ug)at 5d, operated completely with the specification of invitrogen DMRIE-C reagents. After transfection we replaced transfection agent with complete medium, and then added 200U/mlTNF-α in each hole and cultured on.

第二部分口腔癌患者外周血来源的树突状细胞体外负载抗原后抑瘤作用的实验研究无菌采集20例口腔癌患者和20例健康志愿者外周血50ml,分离单个核细胞体外诱导培养DC,并将实验组和对照组细胞各分为三组,A组为未处理组,B组为冻融组,C组为RNA转染组。A组DC在培养5d后,每孔加入TNF-α200U/ml;B组DC培养第5d后,每孔中加入癌细胞蛋白抗原,使DC/肿瘤细胞=1:1,继续培养4h后,每孔加入TNF-α200U/ml;C组将培养至第5d的未成熟DC用肿瘤细胞RNA进行转染(DC:RNA=1×105/ml: 5ug,按照invitrogen DMRIE-C试剂说明书进行操作),转染结束后用完全培基取代转染剂,每孔加入TNF-α200U/ml。

During the period of past three years, the project finished the research of conservation biology on the four endangered and endemic plants from Theaceae. Their detail distribution and living states were completely investigated, about 120 indivaduals of the critically endangered Euryodendron excelsum and abandant individuals and population of Apterosperma oblata were newly found.

本项目三年来,通过对山茶科猪血木、圆籽荷、猴子木、厚皮香及长果核果茶等濒危和特有植物的保护生物学研究,摸清了其野外详细分布、生长状况,发现极度濒危植物猪血木的个体数为120余株、濒危植物圆籽荷仍有大量的个体和种群。

Methods: Eleven B-CLL patients were studied. Leukemic lymphocytes with (n=8) or without (n=3) P2z receptors were exposed in vitro to ATP, benzoylbenzoic-ATP, 2-methylthio-ATP(2MeSATP), adenosine-5′-[γ-thio] triphosphate, and other nucleosides for 8h. Apoptosis was detected by electron microscopy, agarose gel electrophoresis, and quantitative TdT assay. Results:Apoptosis was detected only in leukemic lymphocytes with P2z receptors. By using the quantitative assay, ATP-inducing DNA strand breaks were found to occur specifically for BzATP, ATP and 2MeSATP, but not for ATP-γS and other nucleosides.

将表达P2z受体[P2z]与不含P2z受体[P2z]的两组CLL细胞分别同1.0mmol/L三磷酸腺苷体外培养8小时,以电镜、DNA凝胶电泳和定量DNA 3′端TdT法检测细胞凋亡;并对ATP、苯甲酰苯甲酸ATP、2-甲基硫ATP(2MeSATP)、γ-硫代ATP及其它核苷的诱导效应和氧化型ATP、1-[N,O-二(5-异喹啉碘酰基)N-甲基-L-酪氨酰]-4-苯哌嗪KN-62)的抑制效应做定量研究。

Activity of alkaline phosphatase and ability of formation for calcifying nodules were determined.

抽取健康成人骨髓组织,用Percoll分离液分离出骨髓中的单个核细胞,在含体积分数为10%小牛血清的高糖DMEM培养液中,置于37℃、含体积分数为5%的CO2湿化空气孵箱中培养,通过传代培养扩增骨髓基质干细胞,传三代时改用含地塞米松、β-甘油磷酸和维生素C的条件培养基培养,用倒置显微镜、HE染色观察增殖和分化情况,并测定碱性磷酸酶活性和钙结节形成能力。

Experiment 1, let rats acquire taste preference to quinine solution, and take account of β-EP-immunoreactive neurons in different nucleuses of hypothalamic areas, separately adopted taste preference learning training and immunohistochemistry; Experiment 2, Added banana essence into quinine solution to discuss the connection between flavor preference learning and the expression of β-EP; Experiment 3, To research endogenous opiate like substances contribute to the establishment of CTP and influence the behavior of taste preference by naloxone was i.p.

实验一,采用味觉嗜好学习训练和免疫组织化学方法,让大鼠获得对奎宁的味觉嗜好,计数了下丘脑不同核团内β-内啡肽免疫反应细胞数;实验二,向奎宁溶液中加入香蕉气味,探讨风味嗜好学习与下丘脑β-内啡肽表达的关系;实验三,腹腔内注射纳络酮,探讨内阿片肽对CTP建立及味觉嗜好行为表达的影响。

Carl Woese came up with the three-domain theory of life (eubacteria, archaea and eukaryotes) based on his discovery that the genes encoding ribosomal RNA are ancient and distributed over all lineages of life with little or no horizontal gene transfer.

卡尔·沃斯发现编码核糖体RNA的基因是古老的、分布在生物的所有世系,并有少量或无水平基因转移;基于此发现,他提出了生物三域理论(真细菌、古细菌和真核生物)。

Chinese Nuclear Industry 23rd Construction Corporation(CNI23), as a synthetic equipment-installing company of Chinese nuclear industry system, was founded in 1958. Its main businesses are nuclear power engineering, nuclear engineering and national defense industry projects. It undertakes all the tasks of mainlands installation of nuclear facilities, and it also has gained the main contractor status of the domestic nuclear power plant projects and the market of nuclear engineering equipment installation.

中国核工业第二三建设公司作为我国核工业系统的综合性设备安装公司,自1958年成立以来以核电工程、核工程和国防军工工程建设为主营业务,承担了国内大部分核设施的安装施工任务,奠定了国内核电站工程、核工程设备安装市场的主要承包商地位。

Methods We detected c-Myc, Bcl-2 and Fas proteins and performed immunophenotyping by flow cytometry in 21 cases of CML marrows and 9 normal bone marrows.

采用流式细胞术,测定21例CML及12例正常骨髓标本单个核细胞的髓系免疫表型及三种与PCD有关的调节蛋白――c-Myc、Bcl-2、Fas的表达。

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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.

然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。

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