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1KaKs_Calculator:Calculating Ka and Ks Through Model Selection and Model Averaging显示文摘KaKs_Calculator is a software package that calculates nonsynonymous (Ka) andsynonymous (Ks) substitution rates through model selection and model averag-ing. Since existing methods for this estimation adopt their specific mutation(substitution) models that consider different evolutionary features, leading todiverse estimates, KaKs Calculator implements a set of candidate models in amaximum likelihood framework and adopts the Akaike information criterion tomeasure fitness between models and data, aiming to include as many featuresas needed for accurately capturing evolutionary information in protein-coding se-quences. In addition, several existing methods for calculating Ka and Ks arealso incorporated into this software. KaKs Calculator, including source codes,compiled executables, and documentation, is freely available for academic use athttp://gffzz5c65aa98f6514e89hxwuqb6b50v6p6fcn.ffgz.tsg.suse.edu.cn/software.htm.Zhang Zhang Jun Li Xiao-Qian Zhao Jun Wang Gane Ka-Shu Wong Jun Yu 2006Genomics, Proteomics & Bioinformatics2006,4,4:86
2Prevalence of Nontraumatic Osteonecrosis of the Femoral Head and its Associated Risk Factors in the Chinese Population: Results from a Nationally Representative Survey显示文摘De-Wei Zhao Mang Yu Kai Hu Wei Wang Lei Yang Ben-Jie Wang Xiao-Hong Gao Yong-Ming Guo Yong-Qing Xu Yu-Shan Wei Si-Miao Tian Fan Yang Nan Wang Shi-Bo Huang Hui Xie Xiao-Wei Wei Hai-Shen Jiang Yu-Qiang Zang Jun Ai Yuan-Liang Chen Guang-Hua Lei Yu-Jin Li Geng Tia Zong-Sheng Li Yong Cao Li Ma 2015Chinese Medical Journal2015,,21:151
3The Tea Tree Genome Provides Insights into Tea Flavor and Independent Evolution of Caffeine Biosynthesis显示文摘茶是世界有巨大的经济、药用、文化的重要性的最旧、很流行的包含咖啡因的饮料。这里,我们在场第一个高质量的核苷酸序列充满重复(80.9%) ,栽培的茶树山茶 sinensis 的 3.02-Gb 染色体。我们证明茶树的一种非常地大的染色体尺寸从一些 LTR retrotransposon 家庭的慢、稳定、长期的扩大被结果。除了一个最近的整个染色体的复制事件,基因的系特定的扩大把新陈代谢的生合成与 flavonoid 联系了被发现,它提高 catechin 生产,萜烯酶激活,和应力公差,为茶风味和改编的重要特征。我们相对可可子和咖啡表明一个独立人士和茶咖啡因合成小径的快速的进化。在 25 山茶种类之中的比较研究表明那更高的表情大多数 flavonoid- 和咖啡因铺平 -- 然而并非 theanine 相关的基因贡献 catechins 和咖啡因的增加的生产并且因此提高处理茶的适用性和茶质量。这些新奇调查结果为进一步的 metabolomic 和典型生合成小径的功能的 genomic 精炼铺平道路并且将帮助开发将最后满足并且吸引世界范围的更多的茶喝酒者的茶风味的一个更多样化的集合。En-Hua Xia Hai-Bin Zhang Jun Sheng Kui Li Qun-Jie Zhang Changhoon Kim Yun Zhang Yuan Liu Ting Zhu Wei Li Hui Huang Yan Tong Hong Nan Cong Shi Chao Shi Jian-Jun Jiang Shu-Yan Mao Jun-Ying Jiao Dan Zhang Yuan Zhao You-Jie Zhao Li-Ping Zhang Yun-Long Liu Ben-Ying Liu Yue Yu Sheng-Fu Shao De-Jiang Ni Evan E. Eichler Li-Zhi Gao 2017Molecular Plant2017,10,6:113
4Stable classi?cation with limited sample: transferring a 30-m resolution sample set collected in 2015 to mapping 10-m resolution global land cover in 2017显示文摘As the world strives to reduce the impact of population growth, urbanization, agricultural expansion, and climate change on food security, energy and water shortage, resource over-exploration, biodiversity loss, environmental pollution, and ultimately human health, timely and higher resolution land cover information is urgently needed to achieve the sustainable development goals of the United Nations.Peng Gong Han Liu Meinan Zhang Congcong Li Jie Wang Huabing Huang Nicholas Clinton Luyan Ji Wenyu Li Yuqi Bai Bin Chen Bing Xu Zhiliang Zhu Cui Yuan Hoi Ping Suen Jing Guo Nan Xu Weijia Li Yuanyuan Zhao Jun Yang Chaoqing Yu Xi Wang Haohuan Fu Le Yu Iryna Dronova Fengming Hui Xiao Cheng Xueli Shi Fengjin Xiao Qiufeng Liu Lianchun Song 2019Science Bulletin2019,64,6:166
5A complete sequence and comparative analysis of a SARS-associated virus(Isolate BJ01)显示文摘The genome sequence of the Severe Acute Respiratory Syndrome (SARS)-associated virus provides essential information for the identification of pathogen(s), exploration of etiology and evolution, interpretation of transmission and pathogenesis, development of diagnostics, prevention by future vaccination, and treatment by developing new drugs. We report the complete genome sequence and comparative analysis of an isolate (BJ01) of the coronavirus that has been recognized as a pathogen for SARS. The genome is 29725 nt in size and has 11 ORFs (Open Reading Frames). It is composed of a stable region encoding an RNA-dependent RNA polymerase (composed of 2 ORFs) and a variable region representing 4 CDSs (coding sequences) for viral structural genes (the S, E, M, N proteins) and 5 PUPs (putative uncharacterized proteins). Its gene order is identical to that of other known coronaviruses. The sequence alignment with all known RNA viruses places this virus as a member in the family of Coronaviridae. Thirty putative substitutions have been identified by comparative analysis of the 5 SARS- associated virus genome sequences in GenBank. Fifteen of them lead to possible amino acid changes (non-synonymous mutations) in the proteins. Three amino acid changes, with predicted alteration of physical and chemical features, have been detected in the S protein that is postulated to beinvolved in the immunoreactions between the virus and its host. Two amino acid changes have been detected in the Mprotein, which could be related to viral envelope formation. Phylogenetic analysis suggests the possibility of non-human origin of the SARS-associated viruses but provides noevidence that they are man-made. Further efforts should focus on identifying the etiology of the SARS-associated virus and ruling out conclusively the existence of otherpossible SARS-related pathogen(s).QIN E'de ZHU Qingyu YU Man FAN Baochang CHANG Guohui SI Bingyin YANG Bao PENG Wenming JIANG Tao LIU Bohua DENG Yongqiang LIU Hong ZHANG Yu WANG Cui LI Yuquan GAN Yonghua LI Xiaoyu L Fushuang TAN Gang CAO Wuchun, YANG Ruifu Institute of Microbiology and Epidemiology, Chinese Academy of Military Medical Sciences, Beijing 100071, China WANG Jian, LI Wei, XU Zuyuan, LI Yan, WU Qingfa, LIN Wei, CHEN Weijun, TANG Lin, DENG Yajun, HAN Yujun, LI Changfeng, LEI Meng, LI Guoqing, LI Wenjie, L Hong, SHI Jianping, TONG Zongzhong, ZHANG Feng, LI Songgang, LIU Bin, LIU Siqi, DONG Wei, WANG Jun, Gane K-S Wong, YU Jun & YANG Huanming* Beijing Genomics Institute, Chinese Academy of Sciences, Beijing 101300 National Center for Genome Information, Beijing 101300, China 2003Chinese Science Bulletin2003,48,10:121
6KaKs_Calculator 2.0:A Toolkit Incorporating Gamma-Series Methods and Sliding Window Strategies显示文摘We present an integrated stand-alone software package named KaKs_Calculator 2.0 as an updated version.It incorporates 17 methods for the calculation of nonsynonymous and synonymous substitution rates;among them,we added our modified versions of several widely used methods as the gamma series including γ-NG,γ-LWL,γ-MLWL,γ-LPB,γ-MLPB,γ-YN and γ-MYN,which have been demonstrated to perform better under certain conditions than their original forms and are not implemented in the previous version.The package is readily used for the identification of positively selected sites based on a sliding window across the sequences of interests in 5' to 3' direction of protein-coding sequences,and have improved the overall performance on sequence analysis for evolution studies.A toolbox,including C++ and Java source code and executable files on both Windows and Linux platforms together with a user instruction,is downloadable from the website for academic purpose at http://gffzz6ccd80d7270b40f2sxwuqb6b50v6p6fcn.ffgz.tsg.suse.edu.cn/projects/kakscalculator2/.Dapeng Wang Yubin Zhang Zhang Zhang Jiang Zhu Jun Yu 2010Genomics, Proteomics & Bioinformatics2010,8,1:79
7Analysis of in vivo patterns of caspase 3 gene expression in primary hepatocellular carcinoma and its relationship to p21^(WAF1) expression and hepatic apoptosis显示文摘AIM To detect the expression of caspase 3gene in primary human hepatocellular carcinoma(HCC)and investigate its relationship to p21WAF1gene expression and HCC apoptosis.METHODS In situ hybridization was employedto determine caspase 3 and p21WAF1expression inHCC.In situ end-labeling was used to detecthepatocytic apoptosis in HCC.RESULTS Twenty-one of 39(53.8%)cases ofHCC were found to express caspase 3transcripts,while 45.2% of HCC failed toexpress caspase 3.Non-cancerous adjacent livertissues showed more positive caspase 3(87.5%,7/8)as compared with HCC(P<0.05).The expression of caspase 3 is correlated withHCC differentiation,72.2%(13/18)ofmoderately to highly differentiated HCC showedcaspase 3 transcripts positive,while only 38.1%of poorly differentiated HCC harbored caspase 3transcripts(P<0.05).No relationship wasfound between caspase 3 expression and tumorsize or grade or metastasis,although 52.5%(5/8)of HCC with metastasis were caspase 3positive and a little higher than that with nometastasis(51.6%,P>0.05).Expression of caspase 3 alone did not affect the apoptosisindex(AI)of HCC.The AI was 7.12%o in caspase3-positive tumors(n=21),while in caspase 3-negative cases(n=18)6.59%0(P>0.05).Expression of caspase 3 clearly segregated withp21WAF1positive tumors as compared withp21WAF1-negative cases(16 of 23,69.6% versus5 of 16,31.3%)with statistical significance(P=0.017).In the cases with positive caspase 3and negative p21WAF1,the Al was found slightlyhigher,but with no statistical significance,thanthat with expression of p21WAF1and caspase 3(7.21‰ vs 6.98‰,P>0.05).CONCLUSION Loss of caspase 3 expressionmay contribute to HCC carcinogenesis,althoughthe expression of caspase 3 does not correlatewell with cell apoptosis in HCC.p21WAF1may bemerely one of the inhibitors which can reducecaspase 3 mediated cell apoptosis in HCCs.Bao Hua Sun Jun Zhang Bao JǜWang Xi Ping Zhao You Kun Wang Zhi Qun Yu Dong Liang Yang Lian Jie Hao Department of Clinical Immunology,Tongji Hospital,Tongji Medical University,Wuhan 430030,Hubei Province,China 2000World Journal of Gastroenterology2000,6,3:65
8RNA-seq analysis of prostate cancer in the Chinese population identifies recurrent gene fusions, cancer-associated long noncoding RNAs and aberrant alternative splicings显示文摘在有前列腺癌症的不同赛跑的病人之中有显著不同;然而,位于这差别下面的机制仍然保持不清楚。这里,我们在场 transcriptome 的一处全面风景用 RNA-seq,越过关于基因熔化的前列腺癌症 transcriptomes 的揭示巨大的差异,长 noncoding RNA (长 ncRNA ) ,其他的拼接和体的变化从中国人口 14 主要前列腺癌症和他们的配对的正常对应物介绍。14 个肿瘤(21.4%) 中的三个在中国病人怀有 TMPRSS2 尔格熔化,和这熔化的低流行进一步在一个另外的肿瘤集合(10/54=18.5%) 被证实。尤其是,二新奇基因熔化, CTAGE5-KHDRBS3 (20/54=37%) 和 USP9Y-TTTY15 (19/54=35.2%) ,在我们的耐心的队经常发生了。介绍的进一步系统的 transcriptional 识别了是在肿瘤表示的差别的众多的长 ncRNAs。在长 ncRNA 和基因的表示之间的关联的分析建议长 ncRNAs 可以在 transcriptional 规定以外有功能。这研究在中国人口产出新卓见进前列腺癌症的致病。Shancheng Ren Zhiyu Peng Jian-Hua Mao Yongwei Yu Changjun Yin Xin Gao Zilian Cui Jibin Zhang Kang Yi Weidong Xu Chao Chen Fubo Wang Xinwu Guo Ji Lu Jun Yang Min Wei Zhijian Tian Yinghui Guan Liang Tang Chuanliang Xu Linhui Wang Xu Gao Wei Tian Jian Wang Huanming Yang Jun Wang Yinghao Sun 2012Cell Research2012,22,5:66
9Current pattern of Chinese dialysis units: a cohort study in a representative sample of units显示文摘ZHOU Qiu-gen JIANG Jian-ping WU Sheng-jie TIAN Jian-wei CHEN Jiang-hua YU Xue-qing CHEN Ping-yan MEI Chang-lin XIONG Fei SHI Wei ZHOU Wei LIU Xu-sheng SUN Shi-ren XIE Di LIU Jun XU Xin HOU Fan-fan 2012Chinese Medical Journal2012,,19:69
10Opportunities and challenges of the Sponge City construction related to urban water issues in China显示文摘Waterlogging is one of the major water issues in most cities of China and directly restricts their urbanization processes.The construction of Sponge City is an effective approach to solving the urban water issues,particularly for the waterlogging.In this study,both the urban issues emerged at the stage of rapid urbanization in China and the demands as well as problems of Sponge City construction related with the water issues were investigated,and the opportunities and challenges for the Sponge City construction in the future were also proposed.It was found that the current stormwater management focused on the construction of gray infrastructures(e.g.,drainage network and water tank) based on the fast discharge idea,which was costly and hard to catch up with the rapid expansion of city and its impervious surface,while green infrastructures(e.g.,river,lake and wetland)were ignored.Moreover,the current construction of Sponge City was still limited to low impacted development(LID) approach which was concentrated on source control measures without consideration of the critical functions of surrounding landscapes(i.e.,mountain,river,wetland,forest,farmland and lake),while application of the integrated urban water system approach and its supported technologies including municipal engineering,urban hydrology,environmental science,social science and ecoscape were relatively weak and needed to be improved.Besides,the lack of special Sponge City plan and demonstration area was also a considerable problem.In this paper,some perspectives on Good Sponge City Construction were proposed such as the point that idea of urban plan and construction should conform to the integral and systematic view of sustainable urban development.Therefore,both the basic theoretical research and the basic infrastructure construction such as monitoring system,drainage facility and demonstration area should be strengthened,meanwhile,the reformation and innovation in the urban water management system and the education system should also be urgently performed.The study was expected to provide a deeper thinking for the current Sponge City construction in China and to give some of suggestions for the future directions to urban plan and construction,as well as urban hydrology discipline.XIA Jun ZHANG YongYong XIONG LiHua HE Shan WANG LongFeng YU ZhongBo 2017Science China Earth Sciences2017,60,4:65
11Past,present,and future of biochar显示文摘After entering the twenty-first century,biochar has become a focal point of multidisciplinary research because of its special characteristics,broad application,and promising development prospects.Basic and applied research on the application of biochar in the areas of agriculture,environment,and energy have increased dramatically in the face of food security,environmental pollution,and energy shortage.Although there are some disputes about biochar research,many studies have demonstrated the importance of biochar research from the perspective of scientific advancement and practical application.This paper briefly recalls the history of biochar application;introduces research progress on the basic characteristics of biochar and its associated production technologies;summarizes the research status and existing problems of biochar application in the areas of agriculture,environment,and energy;and analyzes the potential problems and development trends of biochar research in the future.Wenfu Chen Jun Meng Xiaori Han Yu Lan Weiming Zhang 2019Biochar2019,1,1:66
12Differentiation of bone marrow-derived mesenchymal stem cells from diabetic patients into insulin-producing cells in vitro显示文摘Bckground 干细胞,有能力区分进生产胰岛素的房间(欧洲电脑生产厂商) ,将为移植提供小岛房间的潜在地无限的来源并且减轻可获得性和 allogeneic 拒绝的主要限制。因此,干细胞的利用为糖尿病 mellitus (DM ) 正在成为最有希望的治疗。这里,我们学习了糖尿病的病人的骨头的区别能力导出髓的间充质的干细胞( MSC )并且测试了使用 MSC 的可行性因为房间 replacement.Methods 骨头导出髓的 MSC 从 10 个 DM 病人被获得( 5 打 1 DM , 5 打 2 DM )并且在一个三阶段的协议下面导致了到欧洲电脑生产厂商。MSC 的代表性的房间表面抗原表示侧面被流动 cytometric 分析分析。反向的抄写聚合酶链反应(RT-PCR ) 被执行检测与胰腺的房间开发和功能有关的多重基因。欧洲电脑生产厂商的身份被形态学, ditizone 染色和 immunocytochemistry 的分析说明。由这些房间的胰岛素的版本被 MSC 的 immunoradioassay.Results 流动 cytometric 分析在 3 显示出的经过证实这些房间表示了 CD29 (98.28%) 的高水平, CD44 (99.56%) 和 CD106 (98.34%) 。典型像小岛的房间簇在协议(18 天) 的结束被观察。染色的 Ditizone 和为胰岛素的 immunohistochemistry 两个都是积极的。在舞台 2 点的这些区分的房间(10 天) 表示了 nestin,胰腺的十二指肠的 homeobox-1 (PDX-1 ) , Neurogenin3, Pax4,胰岛素, glucagon,但是(18 天) 在舞台 3 点,我们观察了 PDX-1 的高表示,胰岛素, glucagon。胰岛素被这些房间以从 DM 病人的 .Conclusions 骨头导出髓的 MSC 能在 vitro 在某些条件下面区分进功能的欧洲电脑生产厂商的一种调整方式(P0.05 ) 响应葡萄糖刺激的不同集中分泌。用糖尿病的病人的自己的骨头,导出髓的 MSC 将作为为房间代替的自体同源的欧洲电脑生产厂商的来源是可行的。SUN Yu CHEN Li HOU Xin-guo HOU Wei-kai DONG Jian-jun SUN Lei TANG Kuan-xiao WANG Bin SONG Jun LI Hui WANG Ke-xin 2007Chinese Medical Journal2007,,9:57
13Hydrogen Sulfide Promotes Root Organogenesis in Ipomoea batatas, Salix matsudana and Glycine max显示文摘In this report, we demonstrate that sodium hydrosulfide (NaHS), a hydrogen sulfide (H2S) donor, promoted adventitious root formation mediated by auxin and nitric oxide (NO). Application of the H2S donor to seedling cuttings of sweet potato (Ipomoea batatas L.) promoted the number and length of adventitious roots in a dose-dependent manner. It was also verified that H2S or HS- rather than other sulfur-containing components derived from NaHS could be attributed to the stimulation of adventitious root formation. A rapid increase in endogenous H2S, indole acetic acid (IAA) and NO were sequentially observed in shoot tips of sweet potato seedlings treated with HaHS. Further investigation showed that H2S-mediated root formation was alleviated by N-1-naphthylphthalamic acid (NPA), an IAA transport inhibitor, and 2-(4-carboxyphenyl)- 4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide (cPTIO), an NO scavenger. Similar phenomena in H2S donor-dependent root organogenesis were observed in both excised willow (Salix matsudana var. tortuosa Vilm) shoots and soybean (Glycine max L.) seedlings. These results indicated that the process of H2S-induced adventitious root formation was likely mediated by IAA and NO, and that H2S acts upstream of IAA and NO signal transduction pathways.Hua Zhang Jun Tang Xiao-Ping Liu Yun Wang Wei Yu Wei-Yan Peng Fang Fang Dai-Fu Ma Zhao-Jun Wei Lan-Ying Hu 2009Journal of Integrative Plant Biology2009,51,12:58
14A Brief Review on the Mechanisms of miRNA Regulation显示文摘MicroRNAs (miRNAs) are a class of short,endogenously-initiated non-coding RNAs that post-transcriptionally control gene expression via either translational repression or mRNA degradation.It is becoming evident that miRNAs are playing significant roles in regulatory mechanisms operating in various organisms,including developmental timing and host-pathogen interactions as well as cell differentiation,proliferation,apoptosis and tumorigenesis.Likewise,as a regulatory element,miRNA itself is coordinatively modulated by multifarious effectors when carrying out basic functions,such as SNP,miRNA editing,methylation and circadian clock.This mini-review summarized the current understanding of interactions between miRNAs and their targets,including recent advancements in deciphering the regulatory mechanisms that control the biogenesis and functionality of miRNAs in various cellular processes.Yimei Cai Xiaomin Yu Songnian Hu Jun Yu 2009Genomics, Proteomics & Bioinformatics2009,7,4:55
15Multiple 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 2000World Journal of Gastroenterology2000,6,6:52
16Efficacy and safety of bevacizumab plus chemotherapy in Chinese patients with metastatic colorectal cancer:a randomized phase Ⅲ ARTIST trial显示文摘The efficacy and safety of bevacizumab with modified irinotecan,leucovorin bolus,and 5-fluorouracil intravenous infusion(mIFL) in the first-line treatment of metastatic colorectal cancer(mCRC) has not been well evaluated in randomized clinical trials in Chinese patients.We conducted a phrase Ⅲ trial in which patients with previously untreated mCRC were randomized 2:1 to the mIFL [irinotecan(125 mg/m2),leucovorin(20 mg/m2) bolus,and 5-fluorouracil intravenous infusion(500 mg/m2) weekly for four weeks every six weeks] plus bevacizumab(5 mg/kg every two weeks) group and the mIFL group,respectively.Co-primary objectives were progression-free survival(PFS) and 6-month PFS rate.In total,214 patients were enrolled.Our results showed that addition of bevacizumab to mIFL significantly improved median PFS(4.2 months in the mIFL group vs.8.3 months in the bevacizumab plus mIFL group,P < 0.001),6-month PFS rate(25.0% vs.62.6%,P < 0.001),median overall survival(13.4 months vs.18.7 months,P = 0.014),and response rate(17% vs.35%,P = 0.013).Grades 3 and 4 adverse events included diarrhea(21% in the mIFL group and 26% in the bevacizumab plus mIFL group) and neutropenia(19% in the mIFL group and 33% in the bevacizumab plus mIFL group).No wound-healing complications or congestive heart failure occurred.Our results suggested that bevacizumab plus mIFL is effective and well tolerated as first-line treatment for Chinese patients with mCRC.Clinical benefit and safety profiles were consistent with those observed in pivotal phase Ⅲ trials with mainly Caucasian patients.Zhong-Zhen Guan Jian-Ming Xu Rong-Cheng Luo Feng-Yi Feng Li-Wei Wang Lin Shen Shi-Ying Yu Yi Ba Jun Liang Dong Wang Shu-Kui Qin Jie-Jun Wang Jing He Chuan Qi Rui-Hua Xu 2011Chinese Journal of Cancer2011,30,10:48
17Management of chronic hepatitis B infection: Current treatment guidelines, challenges, and new developments显示文摘Chronic hepatitis B(CHB)virus infection is a global public health problem,affecting more than 400 million people worldwide.The clinical spectrum is wide,ranging from a subclinical inactive carrier state,to progressive chronic hepatitis,cirrhosis,decompensation,and hepatocellular carcinoma.However,complications of hepatitis B virus(HBV)-related chronic liver disease may be reduced by viral suppression.Current international guidelines recommend first-line treatment of CHB infection with pegylated interferon,entecavir,or tenofovir,but the optimal treatment for an individualpatient is controversial.The indications for treatment are contentious,and increasing evidence suggests that HBV genotyping,as well as serial on-treatment measurements of hepatitis B surface antigen and HBV DNA kinetics should be used to predict antiviral treatment response.The likelihood of achieving a sustained virological response is also increased by extending treatment duration,and using combination therapy.Hence the paradigm for treatment of CHB is constantly evolving.This article summarizes the different indications for treatment,and systematically reviews the evidence for the efficacy of various antiviral agents.It further discusses the shortcomings of current guidelines,use of rescue therapy in drug-resistant strains of HBV,and highlights the promising clinical trials for emerging therapies in the pipeline.This concise overview presents an updated practical approach to guide the clinical management of CHB.Ceen-Ming Tang Tung On Yau Jun Yu 2014World Journal of Gastroenterology2014,20,20:41
18A study on relationship of nitric oxide,oxidation,peroxidation,lipoperoxidation with chronic cholecystitis显示文摘AIM To study relationship of injury induced bynitric oxide,oxidation,peroxidation,lipoperoxidation with chronic cholecystitis.METHODS The values of plasma nitric oxide(P-NO),plasma vitamin C(P-VC),plasma vitamin E(P-VE),plasma β-carotene(P-β-CAR),plasmalipoperoxides(P-LPO),erythrocyte superoxidedismutase(E-SOD),erythrocyte catalase(E-CAT),erythrocyte glutathione peroxidase(E-GSH-Px)activities and erythrocyte lipoperoxides(E-LPO)level in 77 patients with chronic cholecystitisand 80 healthy control subjects were determined,differences of the above average values betweenthe patient group and the control group anddifferences of the average values betweenpreoperative and postoperative patients wereanalyzed and compared,linear regression andcorrelation of the disease course with the abovedetermination values as well as the stepwiseregression and correlation of the course with thevalues were analyzed.RESULTS Compared with the control group,theaverage values of P-NO,P-LPO,E-LPO weresignificantly increased(P<0.01),and of P-VC, P-VE,P-β-CAR,E-SOD,E-CAT and E-GSH-Pxdecreased(P<0.01)in the patient group.Theanalysis of the linear regression and correlationshowed that with prolonging of the course,thevalues of P-NO,P-LPO and E-LPO in the patientswere gradually ascended and the values of P-VC,P-VE,P-β-CAR,E-SOD,E-CAT and E-GSH-Pxdescended(P<0.01).The analysis of thestepwise regression and correlation indicated thatthe correlation of the course with P-NO,P-VE andP-β-CAR values was the closest.Compared withthe preoperative patients,the average values of P-NO,P-LPO and E-LPO were significantlydecreased(P<0.01)and the average values of P-VC,E-SOD,E-CAT and E-GSH-Px in postoperativepatients increased(P<0.01)in postoperativepatients.But there was no significant difference inthe average values of P-VE,P-β-CAR preoperativeand postoperative patients.CONCLUSION Chronic cholecystitis could inducethe increase of nitric oxide,oxidation,peroxidation and lipoperoxidation.Jun Fu Zhou Dong Cai You Gen Zhu Jin Lu Yang Cheng Hong Peng Yang Hai Yu 2000World Journal of Gastroenterology2000,6,4:36
19Short-term entecavir therapy of chronic severe hepatitis B显示文摘BACKGROUND:Chronic severe hepatitis B patients often have limited survival.This investigation aimed to evaluate the short-term effects of nucleoside analog therapy on chronic severe hepatitis B. METHODS:We retrospectively,randomly collected the data of 129 chronic severe hepatitis B patients:55 were treated with entecavir,and the remaining 74 were not treated with nucleoside analogues. RESULTS:No significant difference in short-term survival rate was found between the group treated with entecavir and that treated without nucleoside analogues.Although entecavir greatly reduced HBV replication in different periods of therapy(P<0.001),the model for end-stage liver disease(MELD)score and liver function(alanine aminotransferase,albumin,bilirubin,prothrombin time) showed no significant change.No significant differences were found in MELD scores and liver function in patients with different HBV DNA levels(≤104copies/ml,>10 4 to<10 6 copies/ml,≥10 6 copies/ml).Nor correlation was observed between HBV DNA levels and MELD scores in different periods of therapy(P>0.05).The HBV DNA levels of patients who survived for over 3 months or less than 3 months were not significantly different either.However, the MELD score and parameters of liver function(albumin, bilirubin,prothrombin time)were different between the two groups(P<0.05).CONCLUSION:These results suggest that short-term suppression of HBV replication may not slow down the progression of liver failure in patients with chronic severe hepatitis B.Chen, Jun Han, Jian-Hua Liu, Chun Yu, Ren-He Li, Fa-Zhao Li, Qun-Fang Gong, Guo-Zhong 2009Hepatobiliary & Pancreatic Diseases International2009,8,3:31
20Differentiation profile of brain tumor stem cells:a comparative study with neural stem cells显示文摘大脑肿瘤干细胞(BTSC ) 的区别侧面的理解,在肿瘤房间人口之中的关键的,将通过有神经干细胞(NSC ) 的比较借卓见进 glioma 的起源并且最终产出新途径与这难处理的疾病作斗争。这里,我们从外科的 glioma 标本的有教养、净化的 BTSC 和 NSCsfrom 人的胎儿的大脑织物,并且进一步分析了他们的细胞的生物行为,他们的特别区别性质。是期望,区分进成熟神经显型的 NSC。然而, BTSC 展出了的 Inthe 一样的区别状况区分了差别。词法上,房间变得变平并且属于第一个星期,但是逐渐地此后聚集了并且改过漂浮的肿瘤范围。在相应时期期间,无差别的房间标记 CD133 和巢在的表示率在 BTSC 不停地减少,但是 1 个星期以后,他们重获上升趋势。有趣地,区分的房间标记 GFAP 和 beta-tubulinIIIshowed 表示变化逆到无差别的房间标记的。总起来说, BTSCswere 揭示了拥有一个能力抵抗区别,它实际上代表 glioma 的恶意的行为。Quan Bin Zhang Xiao Yan Ji Qiang Huang Jun Dong Yu De Zhu Qing Lan 2006Cell Research2006,16,12:34
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