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| 1 | Humoral immune response to circulating SARS-CoV-2 variants elicited by inactivated and RBD-subunit vaccines显示文摘SARS-CoV-2 variants could induce immune escape by mutations on the receptor-binding domain(RBD)and N-terminal domain(NTD).Here we report the humoral immune response to circulating SARS-CoV-2 variants,such as 501Y.V2(B.1.351),of the plasma and neutralizing antibodies(NAbs)elicited by CoronaVac(inactivated vaccine),ZF2001(RBD-subunit vaccine)and natural infection.Among 86 potent NAbs identified by high-throughput single-cell VDJ sequencing of peripheral blood mononuclear cells from vaccinees and convalescents,near half anti-RBD NAbs showed major neutralization reductions against the K417N/E484K/N501Y mutation combination,with E484K being the dominant cause.VH3-53/VH3-66 recurrent antibodies respond differently to RBD variants,and K417N compromises the majority of neutralizing activity through reduced polar contacts with complementarity determining regions.In contrast,the 242–244 deletion(242–244Δ)would abolish most neutralization activity of anti-NTD NAbs by interrupting the conformation of NTD antigenic supersite,indicating a much less diversity of anti-NTD NAbs than anti-RBD NAbs.Plasma of convalescents and CoronaVac vaccinees displayed comparable neutralization reductions against pseudo-and authentic 501Y.V2 variants,mainly caused by E484K/N501Y and 242–244Δ,with the effects being additive.Importantly,RBD-subunit vaccinees exhibit markedly higher tolerance to 501Y.V2 than convalescents,since the elicited anti-RBD NAbs display a high diversity and are unaffected by NTD mutations.Moreover,an extended gap between the third and second doses of ZF2001 leads to better neutralizing activity and tolerance to 501Y.V2 than the standard three-dose administration.Together,these results suggest that the deployment of RBD-vaccines,through a third-dose boost,may be ideal for combating SARS-CoV-2 variants when necessary,especially for those carrying mutations that disrupt the NTD supersite. | Yunlong Cao Ayijiang Yisimayi Yali Bai Weijin Huang Xiaofeng Li Zhiying Zhang Tianjiao Yuan Ran An Jing Wang Tianhe Xiao Shuo Du Wenping Ma Liyang Song Yongzheng Li Xiang Li Weiliang Song Jiajing Wu Shuo Liu Xuemei Li Yonghong Zhang Bin Su Xianghua Guo Yangyang Wei Chuanping Gao Nana Zhang Yifei Zhang Yang Dou Xiaoyu Xu Rui Shi Bai Lu Ronghua Jin Yingmin Ma Chengfeng Qin Youchun Wang Yingmei Feng Junyu Xiao Xiaoliang Sunney Xie | 2021 | Cell Research2021,31,7: | 12 |
| 2 | Expression of PCNA and CD44mRNA in colorectal cancer with venous invasion and its relationship to liver metastasis显示文摘AIM: To investigate the expression of proliferating cell nuclear antigen (PCNA) and CD44mRNA in colorectal cancer with venous invasion and its relationship with liver metastasis.METHODS: Reverse transcriptase-polymerase chain reaction (RT-PCR) was used to detect the expression of PCNA and CD44mRNA in 31 cases of colorectal cancer with venous invasion.RESULTS: Positive expression rates of PCNA and CD44mRNA in colorectal cancer were higher than those without liver metastasis (P<0.05 and P<0.01). In case of colorectal cancer with liver metastasis, strongly positive rates of PCNA and CD44mRNA were 94.1% and 70.6 %,respectively, significantly higher than those without liver metastasis. There was a positive relationship between the expressions of PCNA and CD44mRNA (r=0.67, P<0.05).CONCLUSION: Detection of PCNA and CD44mRNA expression in colorectal cancer may be useful for evaluating liver metastasis of cancer cells. | Shu-Qiang Yue Yan-Ling Yang Ke-Feng Dou Kai-Zong Li Department of Hepatobiliary Surgery,Xijing Hospital,Fourth Military Medical University,Xi’an 710032,Shaanxi Province,China | 2003 | World Journal of Gastroenterology2003,9,12: | 11 |
| 3 | Establishing a human pancreatic stem cell line and transplanting induced pancreatic islets to reverse experimental diabetes in rats显示文摘The major obstacle in using pancreatic islet transplantation to cure type I and some type II diabetes is the shortage of the donors. One of ways to overcome such obstacle is to isolate and clone pancreatic stem cells as 'seed cells' and induce their differentiation into functional islets as an abundant trans-plantation source. In this study, a monoclonal human pancreatic stem cell (mhPSC) line was obtained from abortive fetal pancreatic tissues. Pancreatic tissues were taken from abortive fetus by sterile procedures, and digested into single cells and cell clusters with 0.1% type IV collagenase. Cultured in modified glucose-low DMEM with 10% fetal bovine serum (FBS), these single cells and cell clusters adhered to culture dishes, and then primary epidermal-like pancreatic stem cells started to clone. After digesting with 0.25% trypsin and 0.04% EDTA, fibroblasts and other cells were gradually eliminated and epithelioid pancreatic stem cells were gradually purified during generations. Using clone-ring selection, the mhPSCs were obtained. After addition of 10 ng/mL epidermal growth factor (EGF) in cell culture medium, the mhPSCs quickly grew and formed a gravelstone-like monolayer. Continuously proliferated, a mhPSC line, which was derived from a male abortive fetus of 4 months old, has been passed through 50 generations. More than 1×109 mhPSCs were cryo-preserved in liquid nitrogen. Karyotype analysis showed that the chromosome set of the mhPSC line was normal diploid. Immunocytochemistry results demonstrated that the mhPSC line was positive for the pdx1, glucagon, nestin and CK19, and negative for the insulin, CD34, CD44 and CD45 protein expression. RT-PCR revealed further that the mhPSCs expressed transcription factors of the pdx1, glucagon, nestin and CK19. Also, in vitro induced with β-mercaptoethanol, the mhPSCs differentiated into nerve cells that expressed the NF protein. Induced with nicotinamide, the mhPSCs differentiated into functional islet-like clusters, as identified by di-thizone staining, which expressed the transcription factor of the insulin and secreted the insulin and C-peptide. Furthermore, the transplantation of mhPSCs-induced pancreatic islets into the subcapsular region of the kidney in streptozotocin-induced diabetic rats could reduce blood glucose levels and prolong the life time. | XIAO Mei AN LiLong YANG XueYi GE Xin QIAO Hai ZHAO Ting MA XiaoFei FAN JingZhuang ZHU MengYang DOU ZhongYing | 2008 | Science China(Life Sciences)2008,51,9: | 9 |
| 4 | Bone Metabolic Markers in Patients with Obstructive Sleep Apnea Syndrome显示文摘 | Yan Qiao Bei Wang Jiao-Jiao Yang Yan-Feng Fan Qian GUO Zhan-Jun Dou Ya-Qiong Huang Ting-Ting Feng Shu-Juan Wang Dong-Dong An Xiao-Ling Gao | 2018 | Chinese Medical Journal2018,,16: | 7 |
| 5 | Hepatocellular apoptosis after hepatectomy in obstructive jaundice in rats显示文摘AIM: To investigate the hepatocellular apoptosis after hepatectomy in obstructive jaundice and biliary decompression rats.METHODS: After bile duct ligation for 7 days, rats were randomly divided into OB group in which the rats undervvent 70 % hepatectorny, OB-CD group in which the rats underwent hepatectorny accompanied by choledochoduodenostomy, CDHx group in which the rats underwent choledochoduodenostomy and then received 70 % hepatectomy on the fifth day after biliary decompression. The control group (Hx group) only underwent hepatectorny.RESULTS: The level of total serum bilirubin and serum enzymes was significantly lower in CD-Hx group than in OB-CD and OB groups on day 1, 3 and 5 after hepatectorny. The apeptotic index was significantly lower in CD-Hx group than in OB-CD and OB groups on day 3 and 5. The oligonucleosomal DNA fragments and Caspase-3 activity were also lower in CD-Hx group than in OB-CD and OB groups 3 days after hepatectorny,without differences between CD-Hx and Hx groups.CONCLUSION. Hepatocellular apoptosis plays vital roles in jaundice rats, and biliary decompression is more effective in treatment of patients with severe jaundice before operation. | De-Sheng Wang Ke-Feng Dou Kai-Zong Li Zhi-Qing Gao Zhen-Shun Song Zheng-Cai Liu Department of Hepatobiliary Surgery,Xijing Hospital,the Fourth Military Medical University,Xi’an 710032,Shannxi Province,China | 2003 | World Journal of Gastroenterology2003,9,12: | 7 |
| 6 | Palliative operation procedures for pancreatic head carcinoma显示文摘Objective: To investigate the procedure choice of pal-liative operation for carcinoma of the head of the pan-creas (CHP).Methods: The clinical data from 187 patients withCHP treated in the last 20 years were analyzed retro-spectively.Results: The operation mortality rate was 8.6%, themortality of hepatic duct-jejunostomy (HDJS) was nothigher than that of cholecystojejunostomy (CJS) (P>0.05). The postoperative relapse of jaundice and cholan-gitis was significantly lower than that of CJS (P<0.025), while the survival was apparently higher thanthat of CJS (P<0.01). The mortality of HJDS or CJSwith gastrojejunostomy (GJS) was not significantlyhigher than that of the simple procedure without GJS(P>0.05), whereas the survival was significantlyhigher than that of the simple procedure without GJS(P<0.01). The occurrence of duodenal obstructionafter HDJS or CJS was 29.3%.Conclusion: As a palliative operation, Roux-en-Y chole-dochojejunostomy especially in combination with pre-ventive gastrojejunostomy is strongly recommended. | Kai-Shan Tao Yong-Gang Lu Ke-Feng Dou From the Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China | 2002 | Hepatobiliary & Pancreatic Diseases International2002,1,1: | 6 |
| 7 | Utility of adenovirus-mediated Fas ligand and bcl-2 gene transfer to modulate rat liver allograft survival显示文摘BACKGROUND: Expression of Fas ligand (FasL) on the graft by gene transduction is expected to introduce apoptosis to lymphocytes to protect rejection, but the FasL-expressing graft cells may also induce apoptosis as the graft usually expresses Fas antigens. In this study, a strong antiapoptotic gene, bcl-2, was cotransfected with the FasL gene in rat liver graft to protect against Fas- mediated cell death and to prolong recipient survival. METHODS: Orthotopic liver transplantation was done in a strain combination of DA to LEW rats. After donor vascular isolation, adenovirus-mediated FasL and bcl-2 genes were cotransfected in the liver graft. RESULTS: Intragraft expression of FasL mRNA was constitutively expressed after adenovirus-mediated transduction, although expression of FasL increased mildly in control grafts. Bcl-2 mRNA was highly expressed at 2 days after reperfusion. In contrast, lower expression of bcl-2 was observed in the control group. The average survival of the gene transferred allografts increased from (9.8+1.3) days to (18.5+8.7) days compared with the control group. CONCLUSION: Our results indicate that rat liver allografts can be protected against host immune responses by adenovirus-mediated FasL and bcl-2 transfection, and that bcl-2 expression prevents the graft from Fas-mediated apoptosis. | De-Sheng Wang, Yu Li, Ke-Feng Dou, Kai-Zong Li and Zhen-Shun Song Department of Hepatobiliary Surgery, Xijing Hospital Research Centre of Cell Engineering , Fourth Military Medical University, Xi’an 710032, China | 2006 | Hepatobiliary & Pancreatic Diseases International2006,5,4: | 6 |
| 8 | Microwave strengthens decomposition of mixed rare earth concentrate: Microwave absorption characteristics显示文摘The potential application of microwave heating technology for processing the mixed rare earth concentrate was systematically investigated by analyzing the microwave absorption characteristics in this study. The complex permittivity was measured through resonant cavity perturbation method. The variations of permittivity, the loss factor, loss tangent and the penetration depth with the increasing temperature were investigated numerically. The results indicate that the permittivity increases as the temperature increases, and temperature has a pivotal effect on it. The mixed concentrate is high loss material at the temperature range from 600 to 800℃ according to theoretical analyses of loss tangent and penetration depth. The results of phase transition analysis prove that the variation of microwave absorption characteristics of mixed concentrate is caused by the changes of crystal and lattice structures.The reflectivity, loss factor and penetration depth of the mixed concentrate were also calculated, and the results indicate that processing the mixed concentrate by microwave heating is of high feasibility and industrial potential. | Yukun Huang Ting'an Zhang Zhihe Dou Guozhi Lv Guihong Han Weijun Peng | 2019 | Journal of Rare Earths2019,37,5: | 5 |
| 9 | The landscape of aging显示文摘Aging is characterized by a progressive deterioration of physiological integrity,leading to impaired functional ability and ultimately increased susceptibility to death.It is a major risk factor for chronic human diseases,including cardiovascular disease,diabetes,neurological degeneration,and cancer.Therefore,the growing emphasis on “healthy aging” raises a series of important questions in life and social sciences.In recent years,there has been unprecedented progress in aging research,particularly the discovery that the rate of aging is at least partly controlled by evolutionarily conserved genetic pathways and biological processes.In an attempt to bring full-fledged understanding to both the aging process and age-associated diseases,we review the descriptive,conceptual,and interventive aspects of the landscape of aging composed of a number of layers at the cellular,tissue,organ,organ system,and organismal levels. | Yusheng Cai Wei Song Jiaming Li Ying Jing Chuqian Liang Liyuan Zhang Xia Zhang Wenhui Zhang Beibei Liu Yongpan An Jingyi Li Baixue Tang Siyu Pei Xueying Wu Yuxuan Liu Cheng-Le Zhuang Yilin Ying Xuefeng Dou Yu Chen Fu-Hui Xiao Dingfeng Li Ruici Yang Ya Zhao Yang Wang Lihui Wang Yujing Li Shuai Ma Si Wang Xiaoyuan Song Jie Ren Liang Zhang Jun Wang Weiqi Zhang Zhengwei Xie Jing Qu Jianwei Wang Yichuan Xiao Ye Tian Gelin Wang Ping Hu Jing Ye Yu Sun Zhiyong Mao Qing-Peng Kong Qiang Liu Weiguo Zou Xiao-Li Tian Zhi-Xiong Xiao Yong Liu Jun-Ping Liu Moshi Song Jing-Dong J.Han Guang-Hui Liu | 2022 | Science China(Life Sciences)2022,65,12: | 4 |
| 10 | Procedures for congenital choledochal cysts and curative effect analysis in adults显示文摘Objective: To evaluate the procedures and timing ofoperation as well as long-term postoperative effect ofcongenital choledochal cysts (CCC) in adults.Methods: The procedures and timing of operation,effective rate, re-operation rate and incidence of car-cinoma after operation for 70 adult patients withCCC from January 1980 to June 1999 were analyzedretrospectively.Results: The re-operation rate of external drainagewas 86% (6/7). The effective rate of internal drain-age was significantly lower than that of cyst resection(3/10 vs 45/49, X^2=20. 94, P<0.001). The re-op-eration rate and incidence of carcinoma of internaldrainage were higher than those of cyst resection (5/10 vs 3/49, X^2=13. 64, P<0. 001 and 3/10 vs 3/49,X^2=5. 18, P<0. 025). The reoperation rate of e-mergency surgery was higher than that of selectiveoperation (8/10 vs 6/56, X^2=24. 37, P<0.001).Conclusions: External drainage should be the first-aid measure and the therapy of choice on emergencybasis. Internal drainage should never be attempted.Cyst resection with Roux-en-Y hepaticojejunostomy isrecommended as the treatment of choice in selectiveoperation. | Kai-Shan Tao Yong-Gang Lu Ting Wang Ke-Feng Dou the Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China | 2002 | Hepatobiliary & Pancreatic Diseases International2002,1,3: | 4 |
| 11 | Influence of liver nonparenchymal cell infusion combined with cyclosporin A on rejection of rat small bowel transplantation显示文摘AIM: To investigate the effect of liver nonparenchymal cell infusion combined with cyclosporin A (CsA) on rejection of heterostrain rat small bowel transplantation.METHODS: The liver nonparenchymal cell suspension was prepared by density gradient centrifugation method with Percoll centrifugal solution. Heterotopic small bowel transplantation was performed. Then the rats were divided into four groups. Group one: homogenic transplantation (F344/N→F344/N), group two: allotransplantation (F344/N →Wistar), group three: allotransplantation (F344/N→Wistar)+ CsA, with CsA 1O mg.kg-1.d-1 after transplantation, group four: allotransplantation + CsA (F344/N→Wistar) + liver nonparenchymal cell infusion + CsA (F344/N→Wistar), in which recipient Wistar rats had been injected with 2×108 F344/N liver nonparenchymal cells 20 days before transplantation, and treated with CsA after transplantation.Finally, the survival time after small bowel transplantation,gross and histopathological examination, and IL-2 levels in serum were observed.RESULTS: The survival time after small bowel transplantation was 7.14±0.33 d, 16.32±0.41 d and 31.41±0.74 d in group 2, 3, and 4, respectively. The survival time was significant longer (P<0.01) in group 4. The gross and histopathological examination showed that the rejection degree in group 4 was lower than those in groups 2 and 3. Serum IL-2 level in group 4 was also lower than those in groups 2 and 3 (P<0.01).CONCLUSION: Liver nonparenchymal cell infusion combined with CsA can prolong the survival time of rat small bowel transplantation, and the anti-rejection effect is good. | Yan-Ling Yang Ji-Peng Li Ke-Feng Dou Kai-Zong Li Department of Hepatobiliary Surgery,Xijing Hospital,Fourth Military Medical University,Xi’an 710032,Shaanxi Province,China | 2003 | World Journal of Gastroenterology2003,9,12: | 3 |
| 12 | Decomposition process of bastnaesite concentrate in NaOH-CaO-H2O system显示文摘A novel process of calcification-leaching for bastnaesite concentrate(REFCO3) was proposed. The prior calcification was carried out in the system of NaOH-CaO-H2O and the lgC-pH pattern for Ce-F-Ca-C-H2O system was drawn. The thermodynamics result indicates that decomposition for bastnaesite requires certain alkaline condition, but excessive alkalinity also causes decomposition of CaF2. XRD and SEM-EDS analyses on the calcification-leaching process reveal that bastnaesite first decomposes into RE(OH)3 and CaF2. Then, by HCl leaching rare earths were extracted,while CaF2 was left in the leaching residue. In addition, effects of temperature, time, NaOH and CaO on the calcification were investigated. The results show that the leaching rate of rare earths(REs)reaches 72.5 wt%, at the same time 99.2 wt% of F is left in leaching residue with 20 wt% NaOH and 38 wt% CaO at 493 K for 180 min. | Jiang Liu Ting’an Zhang Zhihe Dou Yan Liu Guozhi Lv | 2019 | Journal of Rare Earths2019,37,7: | 2 |
| 13 | Research on Isolation and Clone of Embryonic Stem Cell-Like in Bovine显示文摘Bovine embryonic stem cell would be invaluable for researching the aspect of animal cloning, production transgenic animal and discussion of gene function in vitro. With the object of establishing an effective culture system for isolation and clone of bovine pluripotent stem cell, we cultured bovine embryos and mouse embryos including morula blastula and hatached blastula and obtained animal ICM on Primary marine embryonic fibroblast (Primary murine embryonic fibroblast, PMEF) feeder layer with tissue medium(DMEM supplemented with 15ml/100ml NBS ,0.1μmol/L Na2SeO3, 0. 1mmol/L β-mercaptoethanol, 1 000ng/ml LIF,10 ng/ml IGF, 1mmol/L necessary amino acid and 1mmol/L L-glutamine), then, we obtained mouse ICM and bovine ICM. Moreover, we isolated and cloned the 6 passage bovine ES like cells(12 cell lines) and 9 passage marine ES like cells (52 cell lines) deriving from bovine ICM and murine ICM respectively on the feeder layer of PMEF by disaggregating ICM and ES cell clones of bovine and murine into smaller clumps through digesting with 0. 125g/100ml trypsin and 0.02g/100ml EDTA and scattering with a glass needle. The pluripotency of both murine and bovine ES like cells was identified with morphological character, histochemistry identification, karyotype analysis and differentiation of ES cells in vitro or in vivo. This result showed that bovine embryonic stem cell and murine embryonic stem cell had developmental pluripotency. | AN Li-long, YANG Qi, XIAO Mei, FENG Xiu-Liang, YANG Chun-rong, LEI An-min, GAO Zhi-min, DOU Zhong-ying and QIU Huai( Agriculture College of Zhanjiang Ocean University, Zhanjiang 524008 , P. R . China Key laboratory of AnimalReproductive Endocrinology and Embryo Biotechnology of Agricultural Ministry of China , Northwestern Scienceand Technology University of Agriculture and Forestry, yangling 712100 , P.R. China) | 2002 | Agricultural Sciences in China2002,1,4: | 2 |
| 14 | Detection of an anti-angina therapeutic module in the effective population treated by a multi-target drug Danhong injection:a randomized trial显示文摘It's a challenge for detecting the therapeutic targets of a polypharmacological drug from variations in the responsed networks in thedfferentiated populations with complex diseases,as stable coronary heart disease.Here,in an adaptive,31-center,randomized,double-blind trial invoving 920 patients with moderate symptomatic stable angina treated by 14-day Danhong injection(DHI),a kind of polyphamacological drug with high quality control,or placebo(0.9%saline),with 76-day following-up,we firstly confrmed that DHl couldincrease the proportion of patients with clinically significant changes on angina-frequency assessed by Seattle Angina Questionnaire(ASAQ-AF220)(12.78%at Day 30,95%confidence interval[C]5.86-19.71%,P=0.0003,13.82%at Day 6C0,95%CI 6.82-20.82%,P=0.0001and 8.95%at Day 90,95%CI 2.06-15.85%,P=0.01).We also found that there were no significant differences in new-onset major vascularevents(P=0.8502)and serious adverse events(P=0.9105)between DHl and placebo.After performing the RNA sequencing in 62 selectedpatients,we developed a systemic modular approach tp identfy differentilly expressed modules(DEMs)of DHI with the Z_(summay)valueless than 0 compared with the control group,calculated by weighted gene co-expression network analysis(WGCNA),and sketched out thebasic framework on a modular map with 25 functional modules targeted by DII.Furthermore,the effective therapeutic module(ETM),defined as the highest corelation value with the phenotype alteration(SAQ-AF,the change in SAQ-AF at Day 30 from baseline)calculatedby WGCNA,was identifed in the population with the best effect(ASAQ-AF240),which is related to anticoagulation and regulation ofcholesterol metabolism.We assessed the modular flexbility of this ETM using the global topological D value based on Euclidean distance,which is corelated with phenotype alteration(r^(2):0.8204,P=0.019)by linear regression.Our study identified the ant-angina therapeuticmodule in the effective population treated by the multi-target drug.Modular methods facilitate the discovery of network pharmacologicalmechanisms and the advancement of precision medicine.(ClinicalTrials.gov identifier:NCTO1681316). | Jun Liu Dan-Dan Li Wei Dong Yu-Qi Liu Yang Wu Da-Xuan Tang Fu-Chun Zhang Meng Qiu Qi Hua Jing-Yu He Jun Li Bai Du Ting-Hai Du Lin-Lin Niu Xue-Jun Jiang Bo Cui Jiang-Bin Chen Yang-Gan Wang Hai-Rong Wang Qin Yu Jing He Yi-Lin Mao Xiao-Fang Bin Yue Deng Yu-Dan Tian Qing-Hua Han Da-Jin Liu Li-Qin Duan Ming-Jun Zhao Cui-Ying Zhang Hai-Ying Dai Ze-Hua Li Ying Xiao You-Zhi Hu Xiao-Yu Huang Kun Xing Xin Jiang Chao-Feng Liu Jing An Feng-Chun Li Tao Tao Jin-Fa Jiang Ying Yang Yao-Rong Dong Lei Zhang Guang Fu Ying Li Shu-Wei Huang Li-Ping Dou Lan-Jun Sun Ying-Qiang Zhao Jie Li Yun Xia Jun Liu Fan Liu Wen-Jin He Ying Li Jian-Cong Tan Yang Lin Ya-Bin Zhou Jian-Fei Yang Guo-Qing Ma Hui-Jun Chen He-Ping Liu Zong-Wu Liu Jian-Xiong Liu Xiao-Jia Luo Xiao-Hong Bin Ya-Nan Yu Hai-Xia Dang Bing Li Fei Teng Wang-Min Qiao Xiao-Long Zhu Bing-Wei Chen Qi-Guang Chen Chun-Ti Shen Yong-Yan Wang Yun-Dai Chen Zhong Wang | 2021 | Signal Transduction and Targeted Therapy2021,6,10: | 2 |
| 15 | Potential energy curves for the X^1Σ_g^+, B^1△_g and B′~1Σ_g^+ states of C_2 using MRCI and approximate CI methods显示文摘The potential energy curves for the X1Σ g+, B1△g and B′1Σ g+ states of C2 have been studied by using MRC and approximate CI methods, and are benchmarked against the calculations of full configuration in teraction (FCI). The results obtained by MRCI method agree with the FCI very well, and even are accu rate enough to compare other approximate methods as benchmark, when the calculations of FCI ar not feasible. The approximate CI methods mentioned in this paper are reliable for treating chemica problems. | LI AnYang1, WANG YuBin2, DOU YuSheng1,3 & WEN ZhenYi1,2 1 Institute of Bio-information, Chongqing University of Post and Telecommunication, Chongqing 400065, China 2 Institute of Modern Physics, Northwest University, Xi’an 710069, China 3 Department of Physical Sciences, Nicholls State University, PO Box 2022, Thibodaux, LA 70310, U. S. A | 2007 | Science China Chemistry2007,50,5: | 2 |
| 16 | Palliative surgery for hilar cholangiocarcinoma显示文摘OBJECTIVE: To evaluate the results of palliative surgical treatment of hilar cholangiocarcinoma in termsof quality of life, survival period and cholangitis rate.MFTHODS: The clinical data on 232 patients with hilar cholangiocarcinoma in the last 22 years wereanalyzed retrospectively. Palliative operations included extrahepatic or intrahepatie choledochojejunostomy(123 patients), bridge internal drainage (15), endoscopic biliary drainage (49), percutaneoustranshepatic biliary drainage or celiotomy biliary drainage (29), and exploratory celiotomy externaldrainage (16).RESULTS: In this series, the operative mortality rate was 9.1%, and no significant difference wasobserved between groups. The rate of cholangitis after operation was significantly lower in Roux-en-Ycholedochojejunostomy group (16.2%) and bridge internal drainage group (15.4%) than in internaldrainage group (35.5%, P<0.01), including percutaneous transhepatic biliary drainage (PTBD),endoscopic retrograde biliary drainage (ERBD), and celiotomy (or PTBD) external biliary drainage group(39.1%, P<0.01). No significant difference in survival was observed between the Roux-en-Ycholedcthojejunostomy group (9.3±1.8 months) and PTBD (or ERBD) internal drainage group(8.7±2.2 months), but the survivals of the above groups were significantly longer than those of thebridge internal drainage group (6.5±1.7 months, P<0.05) and celiotomy (or PTBD) external biliarydrainage group (4.4±2.1 months, P<0.01).CONCLUSIONS: In unresectable cholangiocarcinomas, either operative bilioenteric bypass orpercutaneous transhepatic biliary drainage can achieve significant palliation. Roux-en-Ycholedochojejunostomy is the best choice for palliative operation. The use of U-tube is recommended forinternal radiation therapy. | Hai-Min Li Ke-Feng Dou Kai Sun Zhi-Qing Gao Kai-Zong Li You-Chi Fu the Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China | 2003 | Hepatobiliary & Pancreatic Diseases International2003,2,1: | 2 |
| 17 | Boron and nitrogen dual-doped carbon as a novel cathode for high performance hybrid ion capacitors显示文摘Hybrid ion capacitors have been considered as a very attractive energy source with high energy density and power density since it combines both merits of lithium ion batteries and supercapacitors. However,their commercial application has been limited by the mismatch of charge-storage capacity and electrode kinetics between the capacitor-type cathode and battery-type anode. Herein, B and N dual-doped 3D superstructure carbon cathode is prepared through a facile template method. It delivers a high specific capacity, excellent rate capability and good cycling stability due to the B, N dual-doping, which has a profound effect in control the porosity, functional groups, and electronic conductivity for the carbon cathode. The hybrid ion capacitors using B, N dual-doping carbon cathode and prelithiated graphite anode show a high energy density of 115.5 Wh/kg at 250 W/kg and remain about 53.6 Wh/kg even at a high power density of 10 kW/kg. Additionally, the novel hybrid device achieves 76.3% capacity retention after 2000 cycles tested at 1250 W/kg power density. Significantly, the simultaneous manipulation of heteroatoms in carbon materials provides new opportunities to boost the energy and power density for hybrid ion capacitors. | Jiangmin Jiang Ping Nie Shan Fang Yadi Zhang Yufeng An Ruirui Fu Hui Dou Xiaogang Zhang | 2018 | Chinese Chemical Letters2018,29,4: | 1 |
| 18 | Identification,Characterization, and Expression of P450 Gene Encoding CYP6BQ13v2 from the Red Flour Beetle,Tribolium castaneum (Herbst) (Coleoptera:Tenebrionidae)显示文摘An allele of CYP6BQ13, named CYP6BQ13v2 (GenBank accession no. FJ209361), was isolated from the red flour beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) by RT-PCR. The cDNA sequence of CYP6BQ13v2, 1 563 bp in length, contains an open reading frame of 1 554 nucleotides encoding a putative protein of 518 amino acid residues with a predicted molecular weight of 59.92 kDa and a theoretical pI of 7.60. The putative protein contains the classic hemebinding sequence motif F××G×××C×G (residues 456-465) conserved among all P450 enzymes as well as other characteristic motifs of all cytochrome P450s. It shares 98% identity with the previously published sequence of CYP6BQ13 (GenBank accession no. XP_967146) from the T. castaneum genome project. Phylogenetic analysis of amino acid sequences from members of various P450 families indicated that there was closer phylogenetic relationship of CYP6BQ13v2 with CYP302A1 and CYP307A1 mediating synthesis of the insect molting hormone, distant relationship with CYP6B1 metabolizing plant allelochemicals, CYP6D1 linking to pyrethroid resistance and other members of CYP6 family. Expression test of the gene in the adults and immature stages of T. castaneum by quantitative real-time PCR revealed that CYP6BQ13v2 is expressed in all life stages investigated. The mRNA expression level in 1st instar larvae was 14.9-and 3.86-fold higher than those in pupae and adults, respectively. The CYP6BQ13v2 expression levels appeared in the order of 1st instar larvae, followed by 4th instar larvae, 7th instar larvae, adult, and pupae from high to low. The more bioinformation of CYP6BQ13v2 was also analyzed. | XU Yong-qiang WANG Jin-jun JIANG Hong-bo DOU Wei TANG Pei-an AN Feng-ming | 2009 | Agricultural Sciences in China2009,8,10: | 1 |
| 19 | Induction of a retinoblastoma phosphatase activity by anticancer drugs accompanies p53-independent G1 arrest and apoptosis 显示文摘 | Dou QP An B Will PL | 1995 | Pro Natl Acad Sci USA1995,92,: | 1 |
| 20 | Researeh on mieroseismic activity rules in Sanhejian coal mine显示文摘 | LU Cai-ping DOU Lin-ming CAO An ye | 2008 | Journal of Coal Science and Engineering2008,14,3: | 1 |