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| 1 | 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 |
| 2 | Impact of postoperative omega-3 fatty acid-supplemented parenteral nutrition on clinical outcomes and immunomodulations in colorectal cancer patients显示文摘AIM: To investigate the effect of omega-3 fatty acid parenteral supplementation postoperatively on clinical outcomes and immunomodulation in colorectal cancer patients. METHODS: Forty-two patients undergoing radical colorectal cancer resection with an indication for total parenteral nutrition postoperatively were enrolled in this prospective, double-blind, randomized, controlled study. Patients received total parenteral nutrition supplemented with either soybean oil (LCT; Intralipid, Fresenius-Kabi, SO group, n = 21) or a combination of omega-3 fish oil and soybean oil (LCT:fish oil = 5:1, fish oil; Omegaven, Fresenius-Kabi, FO group, n = 21), up to a total of 1.2 g lipid/kg per day for 7 d postoperatively. A same volume calorie and nitrogen was administrated. Routine blood test, biochemistry, systemic levels of IL-6 and TNF-α, percentage of CD3+, CD4+, and CD8+ lymphocytes were evaluated preoperatively and on postoperative d 1 and 8. Patient outcome was evaluated considering mortality during the hospital stay, length of postoperative hospital stay, and occurrence of infectious complications. RESULTS: Both lipid regimens were well tolerated. No differences between the two groups were noticed in demographics, baseline blood test, biochemistry, serum levels of IL-6 and TNF-α, percentage of CD4+, CD8+ lymphocytes, and ratios of CD4+/CD8+. Compared with those on postoperative d 1, serum IL-6 levels onpostoperative d 8 were significantly depressed in the FO group than in the reference group (-44.43 ± 30.53 vs -8.39 ± 69.08, P = 0.039). Simultaneously, the ratios of CD4+/CD8+ were significantly increased in the FO group (0.92 ± 0.62 vs 0.25 ± 1.22, P = 0.035). In addition, depression of serum TNF-α levels (-0.82 ± 2.71 vs 0.27 ± 1.67, P = 0.125) and elevation of CD3+ and CD4+ lymphocyte percentage (12.85 ± 11.61 vs 3.84 ± 19.62, P = 0.081, 17.80 ± 10.86 vs 9.66 ± 17.55, P = 0.084, respectively) were higher in the FO group than in the reference group. Patients in the FO group trended to need a shorter postoperative hospital stay (17.45 ± 4.80 d vs 19.62 ± 5.59 d, P = 0.19). No statistically significant difference was found when stratified to mortality and occurrence of infectious complications. CONCLUSION: Postoperative supplementation of omega-3 fatty acids may have a favorable effect on the outcomes in colorectal cancer patients undergoing radical resection by lowering the magnitude of inflammatory responses and modulating the immune response. | Bin Liang, Shan Wang, Ying-Jiang Ye, Xiao-Dong Yang, You-Li Wang, Jun Qu, Qi-Wei Xie, Mu-Jun Yin, Division of Surgical Oncology and Division of Gastroenterological Surgery, Peking University People’s Hospital, Beijing 100044, China Author contributions: Liang B and Wang S contributed equally to this work Liang B and Wang S designed the research Liang B, Ye YJ, Yang XD, Wang YL, Qu J, Xie QW, Yin MJ performed the research and collected the data Wang S and Ye YJ supervised the research Liang B and Ye YJ analyzed the data Liang B wrote the paper and revised the manuscript. | 2008 | World Journal of Gastroenterology2008,14,15: | 31 |
| 3 | The precipitation strengthening behavior of Cu-rich phase in Nb contained advanced Fe-Cr-Ni type austenitic heat resistant steel for USC power plant application | Cheng-yu Chi a, Hong-yao Yu b, Jian-xin Dong b, Wen-qing Liu c, Shi-chang Cheng d, Zheng-dong Liu d, Xi-shan Xie b a School of Metallurgical and Ecological Engineering, University of Science & Technology Beijing, Beijing 100083, China b School of Materials Science and Engineering, University of Science & Technology Beijing, Beijing 100083, China c Instrumental Analysis & Research Center, Shanghai University, Shanghai 200444, China d Central Iron and Steel Research Institute, Beijing 100081, China | 2012 | Progress in Natural Science:Materials International2012,22,3: | 20 |
| 4 | Regulatory effect and mechanism of gastrin and its antagonists on colorectal carcinoma显示文摘AIM To explore the effect and mechanism ofgastrin and its antagonists proglumide and somatostatin on coIorectal carcinoma and their clinical significance.METHODS A model of transplanted human colonic carcinoma was established from SW480cell line in gymnomouse body. The volume andweight of transplanted carcinoma was observedunder the effect of pentagatrin (PG), proglumide (PGL) and octapeptide somotostatin (SMS201-995, SMS). The cAMP content ot carcinoma cell was determined by redioimmunoassay and the DNA, protein content and cell cycle were determined by flow-cytometry. The amount of viabIe cells was determined by MTT colorimetric analysis, lP3 content was determined by radioimmunoassay, Ca2+ concentration in cell by fluorometry and PKC activity by isotopic enzymolysis. The expression of gastrin, c-myc,C-fos and rasP21 in 48 cases of colorectal carcinoma tissue was detected by the immunocytochemistry SP method. Argyrophilianucleolar organizer regions was determined withargyrophilia stain.RESULTS The volume, weight, cAMP, DNAand protein content in carcinoma cell, cellamount and proliferation index of S and G2Mphase in PG group were all significantly higher than those of control group. When PG was at theconcentration of 25 mg/ L, the amount of viablecells, lP3 content and Ca2+ concentration in celland membrane PKC activity in PG group weresigniticantly higher than those in control group;when PGL was at a concentration ot 32 mg/L,they dropped to the lowest level in PG (25 mg/L)+ PGL group, but without significant differencefrom the control group. The positive expression rate of gastrin, c-myc, c-fos and rasp21 in carcinoma tissue was 39 .6%, 54 .2%, 47. 9% and54 .2% resPectively and significantly higher than that in mucosa 3 cm and 6 cm adjacent tocarcinoma tissue and normal colorectal mucosa.The positive expression rate of gastrin of highlydifferentiated adenocarcinoma group was significantly higher than that of poorly differentiated and mucinous adenocarcinoma groups. The AgNORs count of carcinoma tissue was significantly higher than that in mucosa 3 cm and 6 cm adjacent to carcinoma tissue and normal colorectal mucosa; and the positive expression of c-myc and c-fos and the AgNORs count in gastrin-positive group was significantly higher than those in gastrin-negative group.CONCLUSION Pentagastrin has a promoting effect on the growth of transplanted human colonic carcinoma from SW480 cell line. PGL hasno obvious effect on the growth of human colonic carcinoma SW480 cell line, but couldinhibit the growth-promoting effect of PG on transplanted carcinoma. Somatostatin can not only inhibit the growth of transplanted human colonic carcinoma from SW480 cell line directlybut also depress the growth-promoting effect ofgastrin on the transplanted carcinoma. Somecolorectal carcinoma cells can produce and secrete gastrin through autocrine, highly-differentiated adenocarcinoma express the highest level gastrin. Endogenous gastrin can stimulate the cell division and proliferation of carcinoma cell and promote the growth of colorectal carcinoma regulating the expression of oncogene omyc, c-fos. Our study has provided experimental basis for the adjuvant treatment using gastrin antagonist such as PGL,somatostatin of patients with colorectalcarcinoma. | He SW Shen KQ He YJ Xie B Zhao YM | 1999 | World Journal of Gastroenterology1999,5,5: | 20 |
| 5 | 胡萝卜软腐果胶杆菌巴西亚种(Pectobacterium carotovorum subsp.brasiliense)引起的黄瓜细菌性软腐病在中国发生显示文摘2014—2015年,在中国山东、山西、河北、河南、辽宁等省的黄瓜茎叶上发生了毁灭性的细菌性软腐病,造成了黄瓜产业严重的经济损失。黄瓜叶片、茎、叶柄和果实表面出现流胶;茎基部呈深褐色进而出现湿腐。受侵染的黄瓜叶边缘出现黄斑和湿腐症状,并逐渐扩散至叶片中心。从受侵染组织中分离出45个细菌菌株,在形态学特性鉴定、生理学、生物化学和16Sr RNA基因序列分析的基础上,将病原体鉴定为胡萝卜软腐果胶杆菌(Pectobacterium carotovorum)。多位点序列分析(MLSA)证实,分离菌株是胡萝卜软腐果胶杆菌巴西亚种[Pectobacterium carotovorum subsp.brasiliensis(Pcb)],病原菌归入进化枝II。重新分离获得与原始菌株相同的菌株,证实了分离菌株的致病力。寄主范围测试表明,该菌株具有广泛的寄主范围。目前为止,这是对Pcb引起的黄瓜软腐病——这一对黄瓜生产具有重要经济影响的病害在中国乃至全球范围内的首次报道。 | 冯志琴(译) meng x l chai a l shi y x xie x w ma z h li b j | 2017 | 中国植保导刊2017,37,7: | 10 |
| 6 | Effect of nitrogen fertilization on yield, N content, and nitrogen fixation of alfalfa and smooth bromegrass grown alone or in mixture in greenhouse pots显示文摘Planting grass and legume mixtures on improved grasslands has the potential advantage of realizing both higher yields and lower environmental pollution by optimizing the balance between applied N fertilizer and the natural process of legume biological nitrogen fixation. However, the optimal level of N fertilization for grass-legume mixtures, to obtain the highest yield, quality, and contribution of N2 fixation, varies with species. A greenhouse pot experiment was conducted to study the temporal dynamics of N2 fixation of alfalfa(Medicago sativa L.) grown alone and in mixture with smooth bromegrass(Bromus inermis Leyss.) in response to the addition of fertilizer N. Three levels of N(0, 75, and 150 kg ha–1) were examined using 15N-labeled urea to evaluate N2 fixation via the 15 N isotope dilution method. Treatments were designated N0(0.001 g per pot), N75(1.07 g per pot) and N150(2.14 g per pot). Alfalfa grown alone did not benefit from the addition of fertilizer N; dry matter was not significantly increased. In contrast, dry weight and N content of smooth bromegrass grown alone was increased significantly by N application. When grown as a mixture, smooth bromegrass biomass was increased significantly by N application, resulted in a decrease in alfalfa biomass. In addition, individual alfalfa plant dry weight(shoots+roots) was significantly lower in the mixture than when grown alone at all N levels. Smooth bromegrass shoot and root dry weight were significantly higher when grown with alfalfa than when grown alone, regardless of N application level. When grown alone, alfalfa's N2 fixation was reduced with N fertilization(R2=0.9376, P=0.0057). When grown in a mixture with smooth bromegrass, with 75 kg ha–1 of N fertilizer, the percentage of atmospheric N2 fixation contribution to total N in alfalfa(%Ndfa) had a maximum of 84.07 and 83.05% in the 2nd and 3rd harvests, respectively. Total 3-harvest %Ndfa was higher when alfalfa was grown in a mixture than when grown alone(shoots: |t|=3.39, P=0.0096; root: |t|=3.57, P=0.0073). We believe this was due to smooth bromegrass being better able to absorb available soil N(due to its fibrous root system), resulting inlower soil N availability and allowing alfalfa to develop an effective N2 fixing symbiosis prior to the 1st harvest. Once soil N levels were depleted, alfalfa was able to fix N2, resulting in the majority of its tissue N being derived from biological nitrogen fixation(BNF) in the 2nd and 3rd harvests. When grown in a mixture, with added N, alfalfa established an effective symbiosis earlier than when grown alone; in monoculture BNF did not contribute a significant portion of plant N in the N75 and N150 treatments, whereas in the mixture, BNF contributed 17.90 and 16.28% for these treatments respectively. Alfalfa has a higher BNF efficiency when grown in a mixture, initiating BNF earlier, and having higher N2 fixation due to less inhibition by soil-available N. For the greatest N-use-efficiency and sustainable production, grass-legume mixtures are recommended for improving grasslands, using a moderate amount of N fertilizer(75 kg N ha–1) to provide optimum benefits. | XIE Kai-yun LI Xiang-lin HE Feng ZHANG Ying-jun WAN Li-qiang David B Hannaway WANG Dong QIN Yan Gamal M A Fadul | 2015 | Journal of Integrative Agriculture2015,14,9: | 5 |
| 7 | Two-photon excitation of the lowest 4f 2→4f 5d near-ultraviolet transitions in Pr3+ : Y3Al5O12 显示文摘 | Gayen S K Xie B Q Cheung Y M | 1992 | Phys Rev B1992,45,1: | 2 |
| 8 | The main projects and development status of noise forecasting and controlling on working face in coal mine显示文摘Noise from the machine on coal working face seriously influenced the miners' physical and mental health, and also, due to the noise, there may be a major hidden danger in safety from accidents as all safety warning signals may be masked by the noise. This paper summarized the features of mine environmental noise on working face, such as the variety of noise sources, the continuity of high intensity and slow attenuation in narrow space, etc.The main projects about noise forecasting and controlling on working face was emphatically expounded;the development status about mines machinery noise mechanism and environmental noise acoustic characteristics of space-time of these main research topics were also introduced. | PENG You-duo GUO Ying-fu WU Li-tao LI Xin XIE Wei-hua Dhillon B S | 2010 | Journal of Coal Science & Engineering(China)2010,16,2: | 2 |
| 9 | Moderate temperature synthesis of nanocrystalline Co3O4 via gel hydrothermal oxidation显示文摘 | JIANG Y WU Y XIE B | 2002 | Materials Chemistry and Physics2002,74,: | 2 |
| 10 | COI1:An Arabidopsis gene required for jasmonate-regulated defense and fertility显示文摘 | Xie D X Feys B F James S | 1998 | Science1998,280,: | 2 |
| 11 | Preparative isolation and purification of 12,13-dihydroxyeuparin from Radix Eupatorii Chinensis by high-speed counter-current chromatography显示文摘An efficient method for the isolation and purification of 12,13-dihydroxyeuparin from Radix Eupatorii Chinensis by high speed counter-current chromatography (HSCCC) was established in this paper. The ether extracts of Radix Eupatorii Chinensis were purified by HSCCC with a solvent system of hexyl hydride-ethyl acetate-methanol-water (1:2:1:2, v/v/v/v). The upper phase was used as the stationary phase and the lower phase as the mobile phase. About 8.4 mg of 12, 13-dihydroxyeuparin was obtained from 200 mg of ether extracts from Radix Eupatorii Chinensis in one-step HSCCC separation, with the purity of 96.71%, as determined by HPLC. After methanolwater recrystallization, the purity of 12,13-dihydroxyeuparin reached 99.83%. Such a simple and effective method was fairly useful to prepare pure compound as reference substances for related study on Radix Eupatorii Chinensis. | Mei Yang a,b , Xin-Jun Xu a,b,Chun-Yan Xie a,b , Jie-Yun Huang a,b , Zhi-Sheng Xie a,b , De-Po Yang a,b a School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China b Guangdong Technology Research Center for Advanced Chinese Medicine, Guangzhou 510006, China | 2012 | Journal of Pharmaceutical Analysis2012,2,4: | 2 |
| 12 | Unsatisfying antiviral therapeutic effect in patients with mother-tochild transmissed chronic hepatitis B virus infection: a prospective multi-center clinical study显示文摘Background:Few data are available regarding the progression of liver disease and therapeutic efficacy in chronic hepatitis B(HBV)carriers infected by mother-to-child transmission(MTCT).This study aimed to investigate these two aspects by comparing the adult chronic HBV carriers in MTCT group with those in horizontal transmission group.Methods:The 683 adult chronic HBV patients qualified for liver biopsy including 191 with MTCT and 492 with horizontal transmission entered the multi-center prospective study from October 2013 to May 2016.Biopsy results from 217 patients at baseline and 78 weeks post antiviral therapy were collected.Results:Patients infected by MTCT were more likely to have e antigen positive(68.6%vs.58.2%,x^2=-2.491,P=0.012)than those with horizontal transmission.However,in patients with MTCT,levels of alkaline phosphatase(ALP)(P=0.031),Fibroscan(P=0.013),N-terminal propeptide of Type III procollagen(PIIINP)(P=0.014),and Laminin(LN)(P=0.006)were high,in contrast to the patients with horizontal transmission for whom the levels of albumin(ALB)(P=0.041),matrix metalloproteinase-3(MMP-3)(P=0.001)were high.The 47.2% of patients with MTCT and 36.8%of those with horizontal transmission had significant liver fibrosis(P=0.013).Following antiviral therapy for 78 weeks,21.2%and 38.0%patients with MTCT and horizontal transmission acquired hepatitis B e antigen(HBeAg)clearance,respectively(P=0.043),and the virological response rates were 54.7%and 74.1%in the MTCT and horizontal groups,respectively(P=0.005).MTCT was a risk factor for HBeAg clearance and virological response.Conclusion:Adult patients with MTCT were more prone to severe liver diseases,and the therapeutic efficacy was relatively poor,which underlined the importance of earlier,long-term treatment and interrupting perinatal transmission. | Jun Li Xiao-Qin Dong Zhao Wu An-Lin Ma Shi-Bin Xie Xu-Qing Zhang Zhan-Qing Zhang Da-Zhi Zhang Wei-Feng Zhao Guo Zhang Jun Cheng Qing Xie Jun Li Zhi-Qiang Zou Ying-Xia Liu Gui-Qiang Wang Hong Zhao China Hepatitis B Related Fibrosis Assessment Research Group | 2019 | Chinese Medical Journal2019,,22: | 2 |
| 13 | Volatile flavor constituents in roasted pork of mini-pig显示文摘 | XIE J C SUN B G ZHENG F P | 2008 | Food Chemistry2008,109,: | 1 |
| 14 | Effect of treatment on serum glial cell line-derived neurotrophic factor in depressed patients显示文摘 | ZHANG X B ZHANG Z J XIE C M | 2008 | Prog Neuropsychopharmacol Biol Psychiatry2008,32,: | 1 |
| 15 | Effect of a feeding stimulant on feeding adaptation of gibel carp Carassius auratus gibelio (Bloch),fed diets with replacement of fish meal by meat and bone meal显示文摘 | Xue M Xie S Q Cui Y B | 2004 | Aquaculture Research2004,35,: | 1 |
| 16 | Study of multi-monomer melt-grafting onto polypropylene in an extruder显示文摘 | Chen NH Guo B H | 2000 | Polymer International2000,49,: | 1 |
| 17 | Estimation of wrist angle from sonomyography using support vector machine and artificial neural network models显示文摘 | Xie H B Zheng Y P Guo J Y | 2009 | Med Eng Phys2009,31,3: | 1 |
| 18 | Interaction of hyperventilation and a- rousal in the pathogenesis of idiopathic central sleep apneas显示文摘 | Xie A Wong B Phillipson EA | 1994 | Am J Respir Crit Care Med1994,150,: | 1 |
| 19 | Quantitative analysis of monofluoroacetate in biologicalsamples by high-performance liquid chromatography using fluorescence labeling with 9-chloromethylanthracene显示文摘 | Xie Z M Shi W B Liu L | 2007 | J Chromatogr B2007,857,: | 1 |
| 20 | State management methods for urban passenger transport system based on artificial system显示文摘 | Wang J An S Xie B | 2006 | Dynamics of Continuous Discrete and Impulsive Systems-Series B-Applications & Algorithms 132006,,: | 1 |