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1A 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
2Pharmacokinetics and disposition of anlotinib, an oral tyrosine kinase inhibitor, in experimental animal species显示文摘Chen-chun ZHONG Feng CHEN Jun-ling YANG Wei-wei JIA Li LI Chen CHENG Fei-fei DU Su-ping ZHANG Chengying XIE Na-ting ZHANG Olajide E OLALEYE Feng-qing WANG Fang XU Li-guang LOU Dong-ying CHEN Wei NIU Chuan LI 2018Acta Pharmacologica Sinica2018,39,6:24
3In vitro differentiation of adipose-derived stem cells and bone marrow-derived stromal stem cells into neuronal-like cells显示文摘Adipose-derived stem cells and bone marrow-derived stromal stem cells were co-cultured with untreated or Aβ1-40-treated PC12 cells, or grown in supernatant derived from untreated or Aβ1-40-treated PC12 cells. Analysis by western blot and quantitative real-time PCR showed that protein levels of Nanog, Oct4, and Sox2, and mRNA levels of miR/125a/3p were decreased, while expression of insulin-like growth factor-2 and neuron specific enolase was increased. In comparison, the generation of neuron specific enolase-positive cells was most successful when adipose-derived stem cells were co-cultured with Aβ1-40-treated PC12 cells. Our results demonstrate that adipose-derived stem cells and bone marrow-derived stromal stem cells exhibit trends of neuronal-like cell differentiation after co-culture with Aβ1-40-treated PC12 cells. This process may relate to a downregulation of miR-125a-3p mRNA expression and increased levels of insulin-like growth factor-2 expression.Jin Zhou Guoping Tian Jing'e Wang Xuefeng Cong Xingkai Wu Siyang Zhang Li Li Bing Xu Feng Zhu Xuedan Luo Jian Han Fengjie Hu 2011Neural Regeneration Research2011,6,19:21
4Effects of acid deposition on terrestrial ecosystems and their rehabilitation strategies in China显示文摘South China has become the third largest region associated with acid deposition following Europe and North America, the area subject to damage by acid deposition increased from 1.75 million km 2 in 1985 to 2.8 million km 2 in 1993. Acid deposition has caused serious damage to ecosystem. Combined pollution of acid rain and SO 2 showed the obvious multiple effects on crops. Vegetable was more sensitive to acid deposition than foodstuff crops. Annual economic loss of crops due to acid deposition damage in eleven provinces of south China was 4.26 billion RMB Yuan. Acid deposition caused serious damage to forest. Annual economic loss of wood volume was about 1.8 billion RMB Yuan and forest ecological benefit loss 16.2 billion in eleven provinces of south China. Acid deposition in south China was typical “sulfuric acid type”. According to the thoughts of sustainable development, some strategies were brought forward as follows: (1) enhancing environmental management, specifying acid\|controlling region, controlling and abating the total emission amount of SO 2; (2) selecting practical energy technologies of clean coal, for example, cleansing and selecting coal, sulfur\|fixed\|type industrial briqutting, abating sulfur from waste gas and so on; (3) developing other energy sources to replace coal, including water electricity, atomic energy and the new energy such as solar energy, wind energy and so on; (4) in acid deposition region of south China, selecting acid\|resistant type of crop and tree to decrease agricultural losses, planting more green fertilizer crops, using organic fertilizers and liming, in order to improve buffer capacities of soil.FENG Zong\|wei, MIAO Hong, ZHANG Fu\|zhu, HUANG Yi\|zong (Research Center for Eco\|Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. E\|mail: FZW@mail.rcees.ac.cn) 2002Journal of Environmental Sciences2002,14,2:15
5Two New Pentacyclic Triterpenes from Sabia parviflora显示文摘Two new pentacyclic triterpene acids, 1a, 3b-dihydroxyl-olean-12-en-28-oic acid and 1a, 2a, 3b-trihydroxyl-olean-12-en-28-oic acid, were isolated from the arial parts of Sabia parviflora.Jin CHEN, Bin CHEN, Jun TIAN, Feng E WU* Laboratory of Natural Materia Medica, Chengdu Institute of Biology, Academia Sinica, Chengdu 610041 2002Chinese Chemical Letters2002,13,4:15
6Platelets generated from human embryonic stem cells are functional in vitro and in the microcirculation of living mice显示文摘Shi-Jiang Lu Feng Li Hong Yin Qiang Feng Erin A Kimbrel Eunsil Hahm Jonathan N Thon Wei Wang Joseph E ltaliano Jaehyung Cho Robert Lanza 2011Cell Research2011,21,3:14
7Bone morphogenetic protein-2 gene controls tooth root development in coordination with formation of the periodontium显示文摘Formation of the periodontium begins following onset of tooth-root formation in a coordinated manner after birth. Dental follicle progenitor cells are thought to form the cementum, alveolar bone and Sharpey's fibers of the periodontal ligament (PDL). However, little is known about the regulatory morphogens that control differentiation and function of these progenitor cells, as well as the progenitor cells involved in crown and root formation. We investigated the role of bone morphogenetic protein-2 (Bmp2) in these processes by the conditional removal of the Bmp2 gene using the Sp7-Cre-EGFP mouse model. Sp7-Cre-EGFP first becomes active at E18 in the first molar, with robust Cre activity at postnatal day 0 (P0), followed by Cre activity in the second molar, which occurs after P0. There is robust Cre activity in the periodontium and third molars by 2 weeks of age. When the Bmp2 gene is removed from Sp7+ (Osterix+) cells, major defects are noted in root, cellular cementum and periodontium formation. First, there are major cell autonomous defects in root-odontoblast terminal differentiation. Second, there are major alterations in formation of the PDLs and cellular cementum, correlated with decreased nuclear factor IC (Nfic), periostin and α-SMA+ cells. Third, there is a failure to produce vascular endothelial growth factor A (VEGF-A) in the periodontium and the pulp leading to decreased formation of the microvascular and associated candidate stem cells in the Bmp2-cKOSp7-Cre-EGFP . Fourth, ameloblast function and enamel formation are indirectly altered in the Bmp2-cKOSp7-Cre-EGFP . These data demonstrate that the Bmp2 gene has complex roles in postnatal tooth development and periodontium formation.Audrey Rakian Wu-Chen Yang Jelica Gluhak-Heinrich Yong Cui Marie A Harris Demitri Villarreal Jerry Q Feng Mary MacDougall Stephen E Harris 2013International Journal of Oral Science2013,5,2:14
8Impact of CYP3A4*1G Polymorphism on Fentanyl Analgesia Assessed by Analgesia Nociception Index in Chinese Patients Undergoing Hysteroscopy显示文摘Background:The clinical efficacy of fentanyl for pain control differs greatly across individuals.The purpose of this study was to investigate the impact of CYP3A4*1G polymorphism including wild-type homozygote (CYP3A4*1/*1,GG),mutant heterozygote (CYP3A4*1/*1G,GA),and mutant homozygote (CYP3A4*1G/*1G,AA)on fentanyl analgesia in Chinese patients undergoing hysteroscopy by the assessment of analgesia nociception index (ANI). Methods:A total of 200 gynecologic patients scheduled for elective hysteroscopy under general anesthesia at Peking University People's Hospital from May to December in 2017 were enrolled in this study.Venous blood was withdrawn for genotyping of CYP3A4*1G before operation.Fentanyl 1μg/kg was administered preoperatively followed by target-controlled infusion of propofol for induction and maintenance.Intraoperative analgesic efficacy of fentanyl was assessed by ANI monitoring at T0(entering room),T1(cervical dilation), T2(start of cervical aspiration),and T3(end of cervical aspiration)time points.The duration of propofol infusion and total dosage of propofol were recorded as well. Results:The patients were divided into three groups according to CYP3A4*1G polymorphism,including 143 in GG group,47in GA group, and 10 in AA group.There was no significant difference in clinical demographics among three groups.The frequency of CYP3A4*1G variant alleles accounted for 16.8%and the distribution of variant alleles was consistent with Hardy-Weinberg equilibrium.Using a multilevel model,ANI values at T1(63.81±19.61),T2(63.63±17.82),and T3(65.68±17.79)were significantly lower than that at T0 (77.16±12.93)in the study population (F =23.50,P <0.001),suggesting that higher levels of pain at T 1,T2,and T3 than T0.Patients with GG genotype showed significantly lower ANI than those with GA or AA genotypes during hysteroscopy under the same dose of fentanyl. Conclusion:CYP3A4*1G polymorphism associated with the analgesic efficacy of intraoperative fentanyl in the patients undergoing hysteroscopy under general anesthesia.Qi Yan Yi Su Lan Gao Nan Ding Hong-Ying Zhang Wen E Yue Wang Yi Feng Hai-Yan An 2018Chinese Medical Journal2018,,22:8
9Dasycarine, a New Quinoline Alkaloid from Dictamnus dasycarpus显示文摘Dasycarine, a new quinoline alkaloid along with five known compounds, dictamine, dihydroobacunone, obacunone, fraxinellone and β-sitosterol, were isolated from Dictamnus dasycarpus. The structure of dasycarine was identified as 4, 5, 8- trimethoxyl -3- (3- methyl -2- butenyl)- 2- quinone by 1D and 2D NMR techniques.Jin CHEN Jing Sheng TANG Jun TIAN You Ping WANG Feng E WU 2000Chinese Chemical Letters2000,11,8:7
10Melatonin promotes ripening of grape berry via increasing the levels of ABA, H2O2, and particularly ethylene显示文摘The role of melatonin in the regulation of fruit ripening and the mechanism involved remain largely unknown.In“Moldova”grape berries,melatonin accumulated rapidly from onset of veraison,reached the maximum at 94 days after bloom(DAB)and then exhibited low levels at late stages of berry ripening.By contrast,abscisic acid(ABA)and hydrogen peroxide(H2O2)exhibited different accumulation patterns,and ethylene was primarily produced immediately before veraison.Further experiments demonstrated that 10 and particularly 100µM melatonin treatments increased the levels of ABA,H2O2,and ethylene production and promoted berry ripening compared with the control treatment,whereas 0.1 and 1.0µM melatonin did not lead to clear effects.Additionally,the application of inhibitors indicated that ABA,H2O2,and ethylene participated in the regulation of berry ripening induced by melatonin,and the suppression of ethylene biosynthesis produced the greatest inhibitory effects on melatonin-induced berry ripening compared with those of ABA and H2O2.Melatonin also promoted ethylene production via ABA.In summary,10 and particularly 100µM melatonin treatments promoted berry ripening,which was accomplished,at least partially,via the other signaling molecules of ABA,H2O2,and particularly ethylene.This research provides insight into melatonin signaling during berry ripening and may advance the application of melatonin to accelerate berry ripening.Lili Xu Qianyu Yue Guangqing Xiang Feng’e Bian Yuxin Yao 2018Horticulture Research2018,5,1:7
11Comparison of non-schistosomal rectosigmoid cancer and schistosomal rectosigmoid cancer显示文摘AIM: To compare the clinicopathological features of patients with non-schistosomal rectosigmoid cancer and schistosomal rectosigmoid cancer.METHODS: All the patients with rectosigmoid carcinoma who underwent laparoscopic radical surgical resection in the Shanghai Minimally Invasive Surgical Center at Ruijin Hospital affiliated to Shanghai JiaoTong University between October 2009 and October2013 were included in this study. Twenty-six cases of colonic schistosomiasis diagnosed through colonoscopy and pathological examinations were collected. Symptoms,endoscopic findings and clinicopathological characteristics were evaluated retrospectively.RESULTS: There were no significant differences between patients with and without schistosomiasis in gender, age, CEA, CA19-9, preoperative biopsy findings or postoperative pathology. Patients with rectosigmoid schistosomiasis had a significantly higher CA-125 level and a larger proportion of these patients were at an early tumor stage(P = 0.003). Various morphological characteristics of schistosomiasis combined with rectosigmoid cancer could be found by colonoscopic examination: 46% were fungating mass polyps, 23%were congestive and ulcerative polyps, 23% were cauliflower-like masses, 8% were annular masses.Only 27% of the patients were diagnosed with rectal carcinoma preoperatively after the biopsy. Computed tomography(CT) scans showed thickened intestinal walls combined with linear and tram-track calcifications in 26 patients.CONCLUSION: Rectosigmoid carcinoma combined with schistosomiasis is associated with higher CA-125 values and early tumor stages. CA-125 and CT scans have a reasonable sensitivity for the accurate diagnosis.Hao Feng Ai-Guo Lu Xue-Wei Zhao Ding-Pei Han Jing-Kun Zhao Lei Shi Tobias S Schiergens Serene ML Lee Wen-Peng Zhang Wolfgang E Thasler 2015World Journal of Gastroenterology2015,21,23:6
12A New Benzylisoquinoline Alkaloid from Sabia parviflora显示文摘A new benzylisoquinoline alkaloid, 1, 2, 3, 4-tetrahydro-5-hydroxyl-8-methoxyl-2- methyl-4’-methoxyl-benzylisoquinoline, was isolated from the arial parts of Sabia parviflora. Its structure was established on the basis of spectral analysis.Jin CHEN, Bin CHEN, Jun TIAN, Feng E WU* Laboratory of Natural Materia Medica, Chengdu Institute of Biology, Academia Sinica, Chengdu 610041 2002Chinese Chemical Letters2002,13,5:6
13Assessment of deep groundwater over-exploitation in the North China Plain显示文摘A series of environmental—geological problems have been caused by over-exploitation of deep groundwater(i.e.,confined aquifer water) in the North China Plain.In order to better understand the status of deep groundwater over-exploitation and the resultant environmental—geological problems on a regional scale,the over-exploitation of groundwater has been assessed by way of the groundwater exploitation potential coefficient(i.e.,the ratio of exploitable amount of deep groundwater to current exploitation), cumulative land subsidence,and long-term average lowering rate of the groundwater table.There is a good correlation among the results calculated by the different methods.On a regional scale,deep groundwater has been over-exploited and there is no further exploitation potential under the current conditions.The groundwater exploitation degree index takes the exploitation in 2003 as the reference for the calculations, so the results mainly reflect the degree of current groundwater exploitation.The results of over-exploitation of deep groundwater obtained by land subsidence data and long-term average rate of depression of the water table mainly reflect environmental—geological problems caused by exploitation of deep groundwater.Jiansheng Shi Zhao Wang Zhaoji Zhang Yuhong Fei Yasong Li Feng'e Zhang Jingsheng Chen Yong Qian 2011Geoscience Frontiers2011,2,4:5
14Melatonin Treatment Enhances the Polyphenol Content and Antioxidant Capacity of Red Wine显示文摘Melatonin and polyphenols are strong antioxidants, and melatonin is also a potential plant growth regulator. The role of melatonin in regulating polyphenol metabolism is unclear. This study assessed the primary impacts of exogenous melatonin treatment on phenolics accumulation and antioxidant capacity of the 'Moldova' wine. It was found that two times of 100 μmol·L^(-1) melatonin treatment clearly enhanced the endogenous melatonin content of ripened berries and wine. Further experiments indicated that melatonin treatment significantly increased the contents of total phenols, flavonoids and anthocyanins in wine. Additionally, the contents of most of the 20 detected individual phenolic compounds were significantly enhanced by melatonin treatment in wine. Particularly, the content of two non-flavonoid phenolic compounds(syringic and coumaric acid) and four anthocyanin compounds [Mv-3-Glu, Mv-3-(6-Coum)Glu-5-Glu, Dp-3-(6-AC)Glu and Dp-3-(6-Coum)Glu-5-Glu]were largely increased by melatonin treatment. In contrast, only Pn-3-(6-Coum)Glu was significantly reduced. Moreover, melatonin treatment significantly enhanced the antioxidant capacity of wine indicated by DPPH and FRAP assays. In summary, melatonin treatment enhanced the polyphenol content and antioxidant capacity of wine.XU Lili YUE Qianyu BIAN Feng'e ZHAI Heng YAO Yuxin 2018Horticultural Plant Journal2018,4,4:4
15Two New Aporphine Alkaliods from Fissistigma bracteolatum显示文摘methylenedioxy-9-methoxy-N-methoxycarbonyl-aporphine and 1,2-methylenedioxy -8,9-dimethoxy-N-methoxycarbonyl-aporphine, two new alkaloids possessing a N-(methoxy carbonyl) group have been isolated from the stems of Fssistigma bracteolatum. Their structures were established on the basis of spectral analysis.Yu DENG, Jin CHEN, Feng E WU* Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041 2002Chinese Chemical Letters2002,13,9:4
16Effects of pretreatment with clopidogrel and aspirin followed by long-term therapy in patients undergoing percutaneous coronary intervention: the PCI-CURE study显示文摘Shamir R Mehta Salim Yusuf Ron JG Peters Michel E Bertrand Basil S Lewis Madhu K Natarajan Klas Malmberg Hans-Jürgen Rupprecht Feng Zhao Susan Chrolavicius Ingrid Copland Keith AA Fox 2001The Lancet . 2001 (9281)2001,,9281:4
17Crystal structure and nucleotide selectivity of human IFIT5/ISG58显示文摘Feng Feng LingminYuan Yao E Wang Christopher Crowley Zongyang Lv Jingjing Li Yingfang Liu Genhong Cheng Su Zeng Huanhuan Liang 2013Cell Research2013,23,8:4
18A salt-induced viscosifying smart polymer for fracturing inter-salt shale oil reservoirs显示文摘Inter-salt shale oil reservoirs located between two salt layers are always accompanied by high temperature and high salinity. However, the present commonly used water-soluble polymers in fracturing fluids su er from poor tolerance to high temperature and high salinity. Thermoviscosifying polymers(TVP) whose aqueous solution shows viscosity increase upon increasing temperature and salt concentration have received considerable attention recently, which is promising for utilization in fracturing fluids to overcome these problems. In this work, both the salt-induced viscosifying property and mechanism of a TVP solution were investigated and the performance of TVP used as fracturing fluid based on the conditions of the Jianghan inter-salt shale oil reservoir in China was evaluated. It is found that the salt-induced viscosifying property of the TVP solution decreases with temperature and shear rate, but increases with polymer concentration. The number of intermolecular hydrophobic domains increases with the salt concentration contributing to the strengthening of a 3D network structure, which results in an increase in viscosity. In addition, the TVP fracturing fluid formulated with saturated brine exhibits excellent temperature and shear resistance, sand-suspending performance, and gel-breaking performance. Its viscosity remains above50 m Pa s after being sheared for 1 h even at a high temperature of 140 °C and the sand-suspending stability can be maintained for more than 1 week at 100 °C. Furthermore, the fracturing fluid can be easily broken down within 12h using 0.2 wt%–0.3 wt% potassium persulfate without residue.Xian’e Li Hong-Yao Yin Ru-Sheng Zhang Jia Cui Jun-Wen Wu Yu-Jun Feng 2019Petroleum Science2019,16,4:4
19利用抗高血压药相关的遗传变异发现其潜在的功效和副作用显示文摘通过研究药物靶蛋白基因的自然变异可以了解药物的功效。本研究旨在利用这种方法探索抗高血压药的潜在副作用和再利用潜力。研究者首先确定了血管紧张素转换酶抑制剂(angiotensin converting enzyme inhibitor,ACEI)、β受体阻滞剂和钙拮抗剂的合适代表基因。刘青(译) 叶鹏(校) Gill D Georgakis MK Koskeridis F Jiang L Feng Q Wei WQ Theodoratou E Elliott P Denny JC Malik R Evangelou E Dehghan A Dichgans M Tzoulaki I 2019中华高血压杂志2019,0,9:3
20Groundwater Systems and Eco-hydrological Features in the Main Karst Regions of China显示文摘Different karst water features and related water resources are present both in southern and northern China.There are over 3,358 well-developed karst ground river systems with total discharges in the dry season of about 420×108 m3 in the main karst regions in the southern part of China.Exploitation rates are only 8-15%.Over 100 larger karst spring systems in the main karst regions of northern China cover a catchment area from 500 km2 to over 4,000 km2,of which the average discharge appears to be from about 1 m3/s to 13 m3/s and the exploitation rates are 70-80%.Six aspects of the eco-hydrological features of some typical karst regions in China comprising water environment,ecological features,materials and structures between parent rock and soil,bio-geological processes and palynological studies(spore-pollen)are discussed.Qualitative evaluation of eco-geology and rocky desertification in the karst regions should be based on the main karst ecological conditions as well as artificial,i.e.,man-made impacts.LU Yaoru ZHANG Feng'e LIU Changli TONG Guobang ZHANG Yun 2006Acta Geologica Sinica(English Edition)2006,80,5:3
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