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| 1 | Serum MicroRNA Signatures Identified in a Genome-Wide Serum MicroRNA Expression Profiling Predict Survival of Non-Small-Cell Lung Cancer(摘要)显示文摘 | Hu, ZB Chen, X Zhao, Y Tian, T Jin, GF Shu, YQ Chen, YJ Xu, L Zen, K Zhang, CY Shen, HB | 2010 | 南京医科大学学报(自然科学版)2010,30,7: | 141 |
| 2 | Osteoarthritis:toward a comprehensive understanding of pathological mechanism显示文摘Osteoarthritis(OA) is the most common degenerative joint disease and a major cause of pain and disability in adult individuals. The etiology of OA includes joint injury, obesity, aging, and heredity. However, the detailed molecular mechanisms of OA initiation and progression remain poorly understood and, currently,there are no interventions available to restore degraded cartilage or decelerate disease progression. The diathrodial joint is a complicated organ and its function is to bear weight, perform physical activity and exhibit a joint-specific range of motion during movement. During OA development, the entire joint organ is affected, including articular cartilage, subchondral bone, synovial tissue and meniscus. A full understanding of the pathological mechanism of OA development relies on the discovery of the interplaying mechanisms among different OA symptoms, including articular cartilage degradation, osteophyte formation, subchondral sclerosis and synovial hyperplasia, and the signaling pathway(s) controlling these pathological processes. | Di Chen Jie Shen Weiwei Zhao Tingyu Wang Lin Han John L Hamilton Hee-Jeong Im | 2017 | Bone Research2017,5,1: | 121 |
| 3 | 2019新型冠状病毒基因组特征和流行病学:病毒起源和受体结合的意义显示文摘研究者对来自9例新型冠状病毒肺炎住院患者的支气管肺泡灌洗液样本和培养的分离株进行了下一代测序。从这些个体中获得了严重急性呼吸综合征-冠状病毒2(severe acute respiratory syndrome-coronavirus 2,SARS-CoV-2)的完整和部分基因组序列。利用Sanger测序连接病毒重叠群以获得全长基因组,cDNA末端快速扩增确定终端区。对这些SARSCoV-2基因组和其他冠状病毒基因组进行了系统进化分析,以确定该病毒的进化史并有助于推断其可能的起源。 | 刘青(译) 刘莉(审校) Lu R Zhao X Li J Niu P Yang B Wu H Wang W Song H Huang B Zhu N Bi Y Ma X Zhan F Wang L Hu T Zhou H Hu Z Zhou W Zhao L Chen J Meng Y Wang J Lin Y Yuan J Xie Z Ma J Liu WJ Wang D Xu W Holmes EC Gao GF Wu G Chen W Shi W Tan W | 2020 | 中华高血压杂志2020,28,3: | 516 |
| 4 | Clinical Features of Adult/Adolescent Atopic Dermatitis and Chinese Criteria for Atopic Dermatitis显示文摘 | Ping Liu Yan Zhao Zhang-Lei Mu Qian-Jin Lu Qian-Jin L U Li Zhang Xu Yao Min Zheng Yi-Wen Tang Xin-Xiano Lu Xiu-Juan xia You-Kun Lin Yu-Zhen Li Cai-Xia Tu Zhi-Rong Yao Jin-Hua Xu Wei Li Wei Lai Hui-Min Yang Hong-Fu Xie Xiu-Ping Han Zhi-Qiang Xie Xiang Nong Zai-Pei Guo Dan-Qi Deng Tong-Xin Shi Jian-Zhong Zhang | 2016 | Chinese Medical Journal2016,,7: | 64 |
| 5 | Multiple genetic alterations and behavior of cellular biology in gastric cancer and other gastric mucosal lesions:H.pylori infection,histological types and staging显示文摘AIM To investigate the expression of multiplegenes and the behavior of cellular biology ingastric cancer(GC)and other gastric mucosallesions and their relations to Helicobacter pylori(H.pylori)infection,tumor staging andhistological subtypes.METHODS Three hundred and twenty-sevenspecimens of gastric mucosa obtained viaendoscopy or surgical resection,and ABCimmunohistochemical staining were used todetect the expression of p53,p16,Bcl-2 andCOX-2 proteins.H.pylori was determined byrapid urea test combined with pathologicalstaining or14C urea breath test.Cellular image analysis was performed in 66 patients withintestinal metaplasia(IM)and/or dysplasia(Dys).In 30 of them,both cancer and theparacancerous tissues were obtained at the timeof surgery.Histological pattern,tumor staging,lymph node metastasis,grading ofdifferentiation and other clinical data werestudied in the medical records.RESULTS p16 expression of IM or Dys wassignificantly lower in positive H.pylori chronicatrophic gastritis(CAG)than those withnegative H.pylori(CAG:54.8% vs 88.0%,IM:34.4% vs 69.6%,Dys:23.8% vs 53.6%,allP<0.05),Bcl-2 or COX-2 expression of IM orDys in positive H.pylori cases was significantlyhigher than that without H.pylori(Bcl-2:68.8%vs23.9%,90.5% vs 60.7%;COX-2:50.0% vs10.8%,61.8% vs 17.8%;all P<0.05).Themean number of most parameters of cellularimage analysis in positive H.pylori group wassignificantly higher than that in negative H.pylori group(Ellipser:53±14,40±12μm,Area1:748±572,302±202 μm2,Area2:3050±1661,1681±1990 μm2,all P<0.05;Ellipseb:79±23,58±15 μm,Ratio1:22%±5%,13%±4%,Ratio2:79%±17%,53%±20%,all P<0.01).There was significant correlation between Bcl-2and histologic pattern of gastric carcinoma,andbetween COX-2 and tumor staging or lymph nodemetastasis(Bcl-2:75.0% vs 16.7%;COX-2:76.0% vs 20.0%,79.2% vs 16.7%;allP<0.05).CONCLUSION p1l6, Bcl-2, and COX-2 but not p53 gene may play a role in the early genesis/ progression of gastric carcinoma and are associated with H. pylori infection. p53 gene is relatively late event in gastric tumorigenesis and mainly relates to its progression. There is more cellular-biological behavior of malignant tumor in gastric mucosal lesions with H. pylori infection. Aberrant Bcl-2 protein expression appears to be preferentially associated with the intestinal type cancer. COX-2 seems to be related to tumor staging and lymph node metastasis. | Heng Jun Gao Lian Zhen Yu Jian Feng Bai Yan Shen Peng Gu Sun Han Lin Zhao Kun Miu Xiu Zhen Lü Xiao Yong Zhang Zhi Quan Zhao | 2000 | World Journal of Gastroenterology2000,6,6: | 52 |
| 6 | Moment-independent importance measure of basic random variable and its probability density evolution solution显示文摘To analyze the effect of basic variable on failure probability in reliability analysis,a moment-independent importance measure of the basic random variable is proposed,and its properties are analyzed and verified.Based on this work,the importance measure of the basic variable on the failure probability is compared with that on the distribution density of the response.By use of the probability density evolution method,a solution is established to solve two importance measures,which can efficiently avoid the difficulty in solving the importance measures.Some numerical examples and engineering examples are used to demonstrate the proposed importance measure on the failure probability and that on the distribution density of the response.The results show that the proposed importance measure can effectively describe the effect of the basic variable on the failure probability from the distribution density of the basic variable.Additionally,the results show that the established solution on the probability density evolution is efficient for the importance measures. | CUI LiJie,Lü ZhenZhou & ZHAO XinPan School of Aeronautics,Northwestern Polytechnical University,Xi’an 710072,China | 2010 | Science China(Technological Sciences)2010,53,4: | 41 |
| 7 | Abnormal activation of the synuclein-gamma gene in hepatocellular carcinomas by epigenetic alteration.显示文摘 | Zhao W Liu H Liu W Wu Y Chen W Jiang B Zhou Y Xue R Luo C Wang L Jiang JD Liu J | 2006 | 中国生物学文摘2006,20,4: | 31 |
| 8 | Blockade of cholecystokinin-2 receptor and cyclooxygenase-2 synergistically induces cell apoptosis, and inhibits the proliferation of human gastric cancer cells in vitro显示文摘Gastrin and cyclooxygenase-2(COX-2) playimportant roles in the carcinogenesis and progression ofgastric cancer.However,it remains unknown whether the combination of cholecystokinin-2(CCK-2) receptor antagonist plus COX-2 inhibitor exerts synergistic anti-tumor effects on human gastric cancer.Here,we demonstrated that the combination of AG-041R(a CCK-2 receptor antagonist) plus NS-398(a selective COX-2 inhibitor) treatment had synergistic effects on proliferation inhibition,apoptosis induction,down-regulation of Bcl-2 and up-regulation of Bax expression in MKN-45 cells.These results indicate that simultaneous targeting of CCK-2 receptor and COX-2 may inhibit gastric cancer development more effectively than targeting either molecule alone.(C)2008 Elsevier Ireland Ltd.All rights reserved. | Sun, W. H. | 2008 | 南京医科大学学报(自然科学版)2008,28,9: | 30 |
| 9 | Hepatic venous outflow reconstruction in adult right lobe living donor liver transplantation without middle hepatic vein显示文摘背景重建困难、挑战性在没有中间的肝的静脉(MHV ) 的成年正确脑叶生活施主肝移植(LDLT ) 的肝的静脉的流出。门静脉和静脉的流出阻塞的过多的灌注将导致接枝的尖锐拥挤,最终导致主要 nonfunction。尽管各种各样的重建模式在许多国家被探索了,当前没有清楚的一致。在这研究,我们描述一种技术没有 MHV.Methods A ,用正确脑叶接枝在 LDLT 与劣等的静脉 cava ( IVC )在流出吻合阻止接枝的“ chocking ”回顾的分析从没有 MHV ,用正确脑叶接枝经历 LDLT 的 55 个接受者在临床的数据上被进行或肝的静脉的流出的重建。施主的恰好肝的静脉(RHV ) 与接受者 IVC 的三角形的开始被吻合;劣等的恰好肝的静脉(IRHV ) 足够大,直接被吻合到 IVC。大 saphenous 静脉(GSV ) 被用于重要 MHV tributaries.Results 的重建没有死亡发生在任何施主。55 个接受者,复杂并发症发生在 6,包括 hepaticvein 苛评(1 个盒子) , small-for-size 症候群(1 ) ,肝的动脉血栓(1 ) ,肠的流血(1 ) ,胆汁漏(1 )(1 ) ,左 subphrenic 脓肿和肺的感染。三个病人的一个总数死了,从 small-for-size 症候群的并且二从多重系统机关 failure.Conclusions,多重洞的垂直吻合与肝的静脉流出被重建。这种技术减轻生活施主的外科的风险,保证优秀静脉的排水,并且阻止脉管的 thromboses 和主要 nonfunction。 | WU Hong YANG Jia-yin YAN Lü-nan LI Bo ZENG Yong WEN Tian-fu ZHAO Ji-chun WANG Wen-tao XU Ming-qing LU Qiang CHEN Zhe-yu MA Yu-kui LI Jin | 2007 | Chinese Medical Journal2007,,11: | 27 |
| 10 | The global image of the Moon obtained by the Chang'E-1:Data processing and lunar cartography显示文摘The global lunar image of the first phase of Chinese Lunar Exploration Program is the first image that covered all over the surface of the Moon. It will serve as a critical foundation for succeeding exploration and scientific research. In this paper, the acquisition, characteristics, and data quality of Chang'E-1 CCD image data are described in detail. Also described are the methodology and procedure of data processing. According to rule of planetary cartography, the image data have been processed, geometrically corrected, and then mosaicked and merged in a scale of 1:2.5 million. The results of data processing and charting show that the image data of Chang'E-1 CCD and their geometric precision meet the demand of charting a map in the scale of 1:2.5 million. The relative geometric positioning precision of the global image is better than 240 m, and the absolute geometric positioning precision is slightly better than that of the ULCN2005 and Clementine lunar basemap (V2.0). The plane positioning precision is approximately 100-1500 m. This global image proves to be the best global image of the Moon so far in terms of space coverage, image quality, and positioning precision. | LI ChunLai1, LIU JianJun1, REN Xin1, MOU LingLi1, ZOU YongLiao1, ZHANG HongBo1, Lü Chang1, LIU JianZhong1, ZUO Wei1, SU Yan1, WEN WeiBin1, BIAN Wei1, ZHAO BaoChang2, YANG JianFeng2, ZOU XiaoDuan1, WANG Min1, XU Chun1, KONG DeQing1, WANG XiaoQian1, WANG Fang1, GENG Liang1, ZHANG ZhouBin1, ZHENG Lei1, ZHU XinYing1, LI JunDuo1 & OUYANG ZiYuan11 National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 2 Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China | 2010 | Science China Earth Sciences2010,53,8: | 22 |
| 11 | A MULTISCALE SOIL LOSS EVALUATION INDEX显示文摘Exploring the relationships between land use and soil erosion at different scales is a fron-tier research field and a hot spot topic in contempo-rary physical geography. Based on the scale-pattern-process theory in landscape ecology and with consideration of such influential factors as land use, topography, soil and rainfall, this paper ap-plies the scale transition method to establishing a soil loss evaluation index at different scales and puts forward a research path and methodology for mul-tiscale soil loss evaluation indices. The multiscale soil loss evaluation index is applied to the evaluation of relationships between land use and soil erosion and the research of soil erosion evaluation at multiple scales. It provides a new method for optimizing the design of regional land use patterns and integrated multiscale research. | FU Bojie ZHAO Wenwu CHEN Liding Lü Yihe WANG De | 2006 | Chinese Science Bulletin2006,51,4: | 22 |
| 12 | 血管周围脂肪组织中的Bmal1通过血管紧张素原转录调控管理静息期血压显示文摘血管周围脂肪组织(perivascular adipose tissue,PVAT)围绕血管,构成了在生理条件下保持血管张力所需的脉管系统的独特的功能整体层。然而,关于PVAT与血压调节之间的关系的资料很少,包括其对昼夜血压变化的潜在作用。 | Chang L Xiong W Zhao X Fan Y Guo Y Garcia-Barrio M Zhang J Jiang Z Lin JD Chen YE 刘青 叶鹏 | 2018 | 中华高血压杂志2018,26,2: | 23 |
| 13 | 体内腺相关病毒-常间回文重复序列丛集及其相关蛋白9介导的基因编辑可改善家族性高胆固醇血症的动脉粥样硬化显示文摘低密度脂蛋白受体(low-density lipoprotein receptor,Ldlr)基因突变是家族性高胆固醇血症的主要原因之一,可导致动脉粥样硬化,并具有很高的终生心血管病风险。常间回文重复序列丛集(clustered regularly interspaced short palindromic repeats,CRISPR)/CRISPR相关蛋白9(CRISPR-related protein 9,Cas9)系统是基因编辑纠正基因突变从而改善疾病的有效工具。该研究的目的是通过腺相关病毒(adeno-associated virus,AAV)携带的CRISPR/Cas9系统进行体内体细胞基因编辑,以确定其能否在小鼠模型中治疗由Ldlr突变体引起的家族性高胆固醇血症。 | 刘青(译) 叶鹏(审校) Zhao H Li Y He L Pu W Yu W Li Y Wu YT Xu C Wei Y Ding Q Song BL Huang H Zhou B | 2020 | 中华高血压杂志2020,28,3: | 22 |
| 14 | Down-regulation of Hsp90 could change cell cycle distribution and increase drug sensitivity of tumor cells显示文摘:AIM To construct Hsp90 antisense RNAeukaryotic expression vector, transfect it intoSGC7901 and SGC7901/VCR of MDR-type humangastric cancer cell lines, HCC7402 of humanhepatic cancer and Eel09 of human esophagealcancer cell lines, and to study the cell cycledistribution of the gene transected cells andtheir response to chemotherapeutic drugs.METHODS A I .03kb cDNA sequence of Hsp90Pwas obtained from the primary plasmid phHsp90by EcoR 1 and BamH I nuclease digestion andwas cloned to the EcoR 1 and BamH 1 site ofthe pcDNA by T4DNA ligase and an antisenseorientation of Hsp900 expression vector wasconstructed. The constructs were transfectedwith lipofectamine and positive clones wereselected with G418. The expression of RNA wasdetermined with dot blotting and RNaseprotection assay, and the expression of Hsp90protein determined with Western blot. Cell cycledistribution of the transfectants was analyzedwith flow cytometry, and the drug sensitivity ofthe transfectants to adriamycin (ADR ),vincrinstine (VCR ), mitomycin (MMC ) andcyclophosphamide (CTX ) with MTT andintracellular drug concentration of thetransfectants was determined with flowcytometry.RESULTS In EcoR 1 and BamH I restrictionanalysis, the size and the direction of the clonedsequence of Hsp900 remained what had beendesigned and the gene constructs were namedpcDNA-Hsp90. AH^SGC7901, AH^SGC7901/ VCR,AH-HCC7402 and AH-Eel09 cell clones allexpressed Hsp90 anti--sense RNA. Theexpression of Hsp90 was down--regulated in AHSGC7901, AH--SGC7901/ VCR, AH-HCC7402 andAH--Eel09 cell clones. Cell cycle distribution waschanged differently. In AH-SGC7901/ VCR andAH-Ec109 cells, G, phase cells were increased; Sphase and G, phase cells were decreased ascompared with their parental cell lines. In AHSGC7901 cell, G, phase cells were decreased, Qphase cells increased and S phase cells were notchanged, and in AH-HCC7402 cells G,, S and qphase cells remained unchanged as comparedwith their parental cell lines. The sensitivity ofAH--SGC7901, AH--SGC7901/ VCR, AH-HCC7402 andAH-Ec109 to chemotherapeutic drugs, thesensitivity ot AH--SGC7901/ VCR to ADR, VCR,MMC and CTX the sensitivity of AH-HCC7402 toADR and VCR, and the sensitivity of Eel09 toADR, VCR and CTX all increased as comparedwith their parental cell lines. The meanfluorescence intensity of ADR in AH--SGC7901,AH-SGC7901/ VCR, AH--HCC7402 and AH-Ec109was also significantly elevated (P< 0. 05).CONCLUSION Down-regulation of HsP90 couldchange cell cycle distribution and increase thedrug sensitivity of tumor cells. | Liu XL Xiao B Yu ZC Guo JC Zhao QC Xu L Shi YQ Fan DM | 1999 | World Journal of Gastroenterology1999,5,3: | 21 |
| 15 | Systematic review of TCF2 anomalies in renal cysts and diabetes syndrome/maturity onset diabetes of the young type 5显示文摘在那里的目的是出版工作的少量系统地与肾的包囊和年轻类型的糖尿病症候群(RCAD )/maturity 发作糖尿病评估基因异例或病人的临床的特征 5 (MODY5 ) 。这评论的目的是系统地估计察觉率,基因并且异质接合的正染色体的主导的 TCF2 anomalies.Data 来源 MEDLINE 数据库的 phenotypic 含意被寻找选择从 1997 ~ 2008 用英语记录的文章。焦点是 monoallelic germline TCF2 基因变化 / 删除。 Biallelic inactivation ,多型性, DNA 修正( hypomethylation 和 hypermethylation ),与癌症风险联系的 loci ,和体的 TCF2 异例都是在寻找文学以后的 excluded.Study 选择, 50 篇文章是 TCF2 异例的察觉率是的 selected.Results 9.7%并且在 MODY (1.4%)之中更加变化了,肾的结构异例( RSA )(21.4%)和有 MODY (41.2%)亚群的 RSA 。变化惊人地位于 DNA 有约束力的域以内并且在 DNA 有约束力的域的 exons 之中变化了:exons 2 和 4 是最热的点,当变化在 exon 是偶发地分布式的时 3。一致显型是 RSA (89.6%) 和糖尿病 mellitus (DM )(45.0%) 。然而, RSA 和 DM 的同时发生是相对低的(27.5%) ,它妨碍基因测试和及时诊断的获得的最佳的表演。另外的机关参与为有 TCF2 异例的病人的早鉴定补足、必要。TCF2 点变化的显型的分析根据变化类型然而并非 utation location.Conclusion 处于 RSA,损害肾的功能(IRF ) 和 DM 的察觉率显示出重要差别以前没收到足够的注意的 TCF2 异例的这些珍贵特征不应该被忽视。 | CHEN Yi-zhi GAO Qing ZHAO Xue-zhi CHEN Ying-zhang Craig L Bennett XIONG Xi-shan MEI Chang-lin SHI Yong-quan CHEN Xiang-mei | 2010 | Chinese Medical Journal2010,,22: | 21 |
| 16 | The modulation of co-stimulatory molecules by circulating exosomes in primary biliary cirrhosis显示文摘Exosomes 是 endocytic 起源的 nanoparticles,由由他们调制 cell-to-cell 通讯的能力的优点正在吸引增加的注意的无数房间人口藏匿了。他们也在许多免疫学的问题正在吸引注意,包括 autoimmunity 和,特别地调整 cytokine 和 chemokine 激活的他们的能力。主要胆汁的肝硬化(PBC ) 被认为一个模型自体免疫疾病,它对胆汁的上皮的房间有高度集中的细胞毒素的回答。我们与 PBC 和 30 健康控制(HC ) 从 29 个病人从血浆孤立 exosomes,并且用一个前 vivo 系统在 mononuclear 房间人口在 co-stimulatory 分子表示和 cytokine 生产上学习了这些 exosomes 的效果。我们也与 HC exosomes 相比在 PBC 识别了 microRNA (miRNA ) 人口。我们此处报导尽管 exosomes 不改变 cytokine 生产,他们显著地确实在介绍抗原的人口上改变 co-stimulatory 分子表示。进一步,我们在 CD14 + 单核白血球上表明了那 CD86 起来调整的表情,而在 CD11c + 上起来调整的 CD40 由从有 PBC 的病人的 exosomes 的树枝状的房间。另外,有在有 PBC 的病人的传播 exosomes 的 miRNA 表示的差别。这些数据基于 co-stimulatory 分子玩的观察有重要重要性在 T 房间激活的规定的一个微分角色。我们的观察显示从 PBC 的异常 exosomes 有选择地在介绍抗原的房间的不同子集导致 co-stimulatory 分子的表示。这些改变可以在自体免疫的肝疾病的致病包含。 | Takashi Tomiyama Guo-Xiang Yang Ming Zhao Weici Zhang Hajime Tanaka Jing Wang Patrick SC Leung Kazuiclli Okazaki Xiao-Song He Qianjin Lu Ross L Coppel Christopher L Bowlus M Eric Gershwin | 2017 | Cellular & Molecular Immunology2017,14,3: | 18 |
| 17 | Leber's hereditary optic neuropathy is associated with the mitochondrial ND4 G11696A mutation in five Chinese families显示文摘 | Zhou XT Wei QP Yang L Tong Y Zhao FX Lu CJ Qian YP Sun YH Lu F Qu J Guan MX | 2006 | 中国生物学文摘2006,20,4: | 18 |
| 18 | The effects of nitrogen fertilizer application on methane and nitrous oxide emission/uptake in Chinese croplands显示文摘The application of nitrogen(N) fertilizer to increase crop yields has a significant influence on soil methane(CH_4) and nitrous oxide(N_2O) emission/uptake.A meta-analysis was carried out on the effect of N application on(i) CH_4 emissions in rice paddies,(ii) CH_4 uptake in upland fields and(iii) N_2O emissions.The responses of CH_4 emissions to N application in rice paddies were highly variable and overall no effects were found.CH_4 emissions were stimulated at low N application rates(<100 kg N ha^(-1)) but inhibited at high N rates(>200 kg N ha^(-1)) as compared to no N fertilizer(control).The response of CH_4 uptake to N application in upland fields was 15%lower than control,with a mean CH_4 uptake factor of-0.001 kg CH_4-C kg^(-1) N.The mean N_2O emission factors were 1.00 and 0.94%for maize(Zea mays) and wheat(Triticum aestivum),respectively,but significantly lower for the rice(Oryza sativa)(0.51%).Compared with controls,N addition overall increased global warming potential of CH_4 and N_2O emissions by 78%.Our result revealed that response of CH_4 emission to N input might depend on the CH_4concentration in rice paddy.The critical factors that affected CH_4 uptake and N_2O emission were N fertilizer application rate and the controls of CH_4 uptake and N_2O emission.The influences of application times,cropping systems and measurement frequency should all be considered when assessing CH_4 and N_2O emissions/uptake induced by N fertilizer. | SUN Bin-feng ZHAO Hong LU Yi-zhong Lü Fei WANG Xiao-ke | 2016 | Journal of Integrative Agriculture2016,15,2: | 18 |
| 19 | Pollen indication to source plants in the eastern desert of China显示文摘In order to investigate the indication of major pollen types to source plants, 39 surface pollen samples are collected from 39 plant communities. The results show that diversity of pollen assemblages presents in different commu-nities. Chenopodiaceae pollen percentages are highest in Kalidium communities and Ceratoides communities (higher than 45%, average is 63.4%), but high Ephedra pollen per-centages (higher than 3.3%, average is 16.5%)in Ceratoides communities make it distinguished from Kalidium communi-ties. Artemisia pollen percentages (more than 50%) are much higher than Chenopodiaceae (less than 35%) in Artemisia Communities. Nitraria pollen percentages (higher than 2%, average is 13.6%) are highest in Nitraria communities com-pared with those in other community patterns. Tamariceae pollen percentages (higher than 2%, average is 8.6%) are highest both in Tetraena and Reaumuria communities com-pared with those in other community patterns. But in Reau-muria communities, Artemisia pollen percentages are higher than Chenopodiaceae with some other pollen types such as Gramineae, Compositae, Leguminosae; on the contrary, in Tetraena communities, Artemisia pollen percentages are less than Chenopodiaceae with few other pollen types. Calli-gonum pollen only appears in Calligonum communities (higher than 2%,average is 5%). The results of cluster analysis (CLA) and detrended correspondence analysis (DCA) show that the pollen indication to source plants can be reflected by association indices (A), over-representation in-dices (O), under-representation indices (U), R-value, the av-erage pollen percentages where parent plants are absent (Xa) and the average pollen percentages where parent plants are present (Xp). Zygophyllum, Calligonum, Tetraena, Tribulus and Tamariceae can indicate source plants very well, owing to high A scores. Artemisia, Chenopodiaceae and Gramineae have high R-values, and Nitraria, Cruciferae and sedum have high O scores, so they are over-represented types, but the higher Xp and the lower Xa values make that these pollen types can also indicate source plants moderately. Allium, Leguminosae, Roseceae, Pedicularis and Compositae have low A scores (less than 0.5), high O and/or U scores, so they cannot indicate source plants clearly. Some other pollen types, such as Pinus, Picea, Betula, Quercus, Ulmus, Ephedra, Elaegnaceae, Ranunculaceae, Caryophyllaceae, Polygona-ceae, Saxifragaceae, only appear in pollen assemblages, so their indication cannot be decided. Just like the pollen per-centage ratios of Artemisia and Chenopodiaceae (A/C), the ratios of Ephedra and Artemisia (E/A), Nitraria and Ephedra (N/E) can also indicate the aridity of environment. In typical desert communities, A/C ratios are less than 0.5, E/A ratios are more than 0.1, and N/E ratios are less than 1. In steppe desert, A/C ratios are 0.5―2, E/A ratios are less than 0.1, and N/E ratios are more than 1. | LI Yuecong XU Qinghai ZHAO Yinclkui YANG Xiaolan XIAO Jule CHEN Hui Lü Xinmiao | 2005 | Chinese Science Bulletin2005,50,15: | 17 |
| 20 | Formation of complexes of Rubisco-Rubisco activase from La^3+, Ce^3+ treatment spinach显示文摘The complex of Rubisco and Rubisco activase from LaCl3-, CeCl3- treated spinach in vivo is induced. SDS-PAGE result shows that the purified proteins from LaCl3-, CeCl3- treated spinach have not only large and small subunits (55 kD, 14.4 kD) of Rubisco, but also two large subunits of 45 kD and 41 kD near the large subunits of Rubisco. Native-PAGE shows that the purified proteins from LaCl3-, CeCl3- treated spinach have not only a band of Rubisco (560 kD), but also a band of about 1100 kD, about twice distant from Rubisco, which might be a complex of Rubisco and Rubisco activase. The purified enzyme activities from LaCl3-, CeCl3-treated spinach are 1.8 and 2.8 times that of the control,the intensities of absorption and fluorescence are sig- nificantly higher than that of the purified Rubisco from the control, and the total sulfhydryl groups and available sulfhydryl groups are 36—39 –SH per mol enzyme, 14—25 –SH per mol enzyme more than those of the purified Rubisco from the control, respectively. The CD spectra show that the secondary structure of the purified enzyme from LaCl3-, CeCl3 -treated spinach is very dif- ferent from the control. The enzyme activities from LaCl3-, CeCl3- treated spinach in vivo are 1.5 and 1.9 times those of the control. | HONG Fashui1, LIU Chao1, ZHENG Lei1, WANG Xuefeng1, WU Kang1, SONG Weiping1, Lü Shipeng1, TAO Ye2 & ZHAO Guiwen3 1. College of Life Sciences, Suzhou Universty, Suzhou 215006, China 2. Synchrotron Radiation Laboratory, Institute of High Energy Physics, The Chinese Academy of Science, Beijing 100039, China 3. Chemical Department, University of Science and Technology of China, Hefei 230026, China | 2005 | Science China Chemistry2005,48,1: | 16 |