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    题名 作者 年代 出处 被引量
1Suppression of m6A reader Ythdf2 promotes hematopoietic stem cell expansion显示文摘Zhenrui Li Pengxu Qian Wanqing Shao Hailing Shi Xi C. He Madelaine Gogol Zulin Yu Yongfu Wang Meijie Qi Yunfei Zhu John M. Perry Kai Zhang Fang Tao Kun Zhou Deqing Hu Yingli Han Chongbei Zhao Richard Alexander Hanzhang Xu Shiyuan Chen Allison Peak Kathyrn Hall Michael Peterson Anoja Perera Jeffrey S. Haug Tari Parmely Hua Li Bin Shen Julia Zeitlinger Chuan He Linheng Li 2018Cell Research2018,28,9:18
2Prevalence, awareness, treatment, and control of hypertension in the non-dialysis chronic kidney disease patients显示文摘ZHENG Ying CAI Guang-yan CHEN Xiang-mei FU Ping CHEN Jiang-hua DING Xiao-qiang YU Xue-qing LIN Hong-li LIU Jian XIE Ru-juan WANG Li-ning NI Zhao-hui LIU Fu-you YIN Ai-ping XING Chang-ying WANG Li SHI Wei LIU Jian-she HE Ya-ni DING Guo-hua LI Wen-ge WU Guang-li MIAO Li-ning CHEN Nan SU Zhen MEI Chang-lin ZHAO Jiu-yang GU Yong BAI Yun-kai LUO Hui-min LIN Shan CHEN Meng-hua GONG Li YANG Yi-bin YANG Xiao-ping LI Ying WAN Jian-xin WANG Nian-song LI Hai-ying XI Chun-sheng HAO Li XU Yan FANG Jing-ai LIU Bi-cheng LI Rong-shan WANG Rong ZHANG Jing-hong WANG Jian-qin LOU Tan-qi SHAO Feng-min MEI Feng LIU Zhi-hong YUAN Wei-jie SUN Shi-ren ZHANG Ling ZHOU Chun-hua CHEN Qin-kai JIA Shun-lian GONG Zhi-feng GUAN Guang-ju XIA Tian ZHONG Liang-bao 2013Chinese Medical Journal2013,,12:16
3Function and regulation of cholecystokinin-octapeptide, β-endorphin and gastrin in anorexic infantile rats treated with ErBao Granules显示文摘AIM To study the role of cholecystokinin octapeptide ( CCK-8), β-endorphin ( β-EP), and gastrin in an anorexic infantile rat model and no subsequent regulation of nose peptides by the Yunpi complex prescription ErBao Granule.METHODS We fed infantile rats with special prepared forage. A liquid extract of ErBao Granule was administered to the rats daily for 3weeks, CCK-8, β-EP, and gastrin concentrations in hypothalamus, gastric antrum, and plasma of the rats were measured by radioimmunoassay,and were compared with controls.RESULTS Treatment of rats with ErBao Granule inhibited CCK-8 secretion and increased β-EP and gastrin secretion. CCK-8 concentration in hypothalamus and plasma of model control group increased significantly and correlated negatively with food intake of models.respectively. β-EP concentration in gastric antrum and plasma of model control group decreased significantly and showed a positive correlation with food intake of models,respectively. Hypothalamus concentration of β-EP was similar in models and controls. Gastrin concentration in gastric antrum of models was lower than in the blank control group, and correlated positively to food intake of models.Finally, CCK-8 concentrations in plasma of rats showed a positive correlation with plasma β-EP(r- 0.68, P<0.05).CONCLUSION The increased plasma and hypothalamus concentration of CCK-8,decreased gastric antrum and plasma level of β-EP. and decreased gastric antrum concentration of gastrin are associated significantly with the anorexia of infantile anorexic rat models produced by special forage. ErBao Granule can reverse these changes, which may be the major mechanisms of ErBao Granule simulating feeding.Yong Ping Du1 Yue Ping Zhang2 Shou Chuan Wang3 Jian Shi1 Shao Hua Wu1,1.Department of Traditional Chinese Medicine. Xijing Hospital, theFourth Military Medical University. Xi an 7101132, Shaanxi Province,China 2.Department of Pediatrics. Xijing Hospital, the Fourth Military MedicalUniversity. Xi’an 710032. Shaanxi Province. China 3.Department of Pediatrics. Nanjing University of Traditional ChineseMedicine, Nanjing71011?l, Jiangsu Province. China 2001World Journal of Gastroenterology2001,7,2:14
4TaqMan Real-time RT-PCR Assay for Detecting and Differentiating Japanese Encephalitis Virus显示文摘Objective To detect Japanese encephalitis virus(JEV) rapidly and distinguish its genotypes, a TaqMan-based reverse transcriptase quantitative polymerase chain reaction(RT-PCR) detection system was developed.Methods By aligning the full-length sequences of JEV(G1-G5), six sets of highly specific TaqMan real-time RT-PCR primers and probes were designed based on the highly conserved NS1, NS2, and M genes of JEV, which included one set for non-specific JEV detection and five sets for the detection of specific JEV genotypes. Twenty batches of mosquito samples were used to evaluate our quantitative PCR assay.Results With the specific assay, no other flavivirus were detected. The lower limits of detection of the system were 1 pfu/mL for JEV titers and 100 RNA copies/μL. The coefficients of variation of this real-time RT-PCR were all < 2.8%. The amplification efficiency of this method was between 90% and 103%.Conclusion A TaqMan real-time RT-PCR detection system was successfully established to detect and differentiate all five JEV genotypes.SHAO Nan LI Fan NIE Kai FU Shi Hong ZHANG Wei Jia HE Ying LEI Wen Wen WANG Qian Ying LIANG Guo Dong CAO Yu Xi WANG Huan Yu 2018Biomedical and Environmental Sciences2018,31,3:10
5CD30 expression in extranodal natural killer/T-cell lymphoma,nasal type among 622 cases of mature T-cell and natural killer-cell lymphoma at a single institution in South China显示文摘Background:Mature T-cell and natural killer(NK)-cell lymphomas compose a heterogeneous group of non-Hodgkin lymphomas,and extranodal NK/T-cell lymphoma,nasal type(ENKTL) is an aggressive subtype with sporadic CD30 expression.However,the significance of CD30 expression in ENKTL is controversial.We aimed to classify a large cohort of patients with mature T-cell and NK-cell lymphomas according to the 2016 World Health Organization(WHO) classification guidelines and to study the association between CD30 expression and prognosis of patients with ENKTL.Methods:We selected consecutive patients with mature T-cell and NK-cell lymphomas who attended our institution between September 1,2009 and August 31,2013.We classified the lymphomas according to the 2016 revision of the WHO classification of lymphoid neoplasms,analyzed the associations between CD30 expression and clinicopathologic features of ENKTL patients,and evaluated the prognostic implications of CD30 expression.Results:We identified 622 consecutive patients with mature T-cell and NK-cell lymphomas,including 317(51.0%)patients with ENKTL.In addition,CD30 expression was detected in 43(47.3%) of a subset of 91 patients with ENKTL.No clinicopathologic features were associated with CD30 expression,and CD30 positivity showed no prognostic significance in patients with ENKTL.Conclusions:ENKTL is the most common type of mature T-cell and NK-cell lymphoma diagnosed at our institution.CD30 is frequently expressed in ENKTL and represents a therapeutic target;however,it may not be a prognostic marker.Yanfen Feng Huilan Rao Yiyan Lei Yuhua Huang Fang Wang Yu Zhang Shaoyan Xi Qiuliang Wu Jianyong Shao 2017Chinese Journal of Cancer2017,36,6:10
6Effect of Cyclocarya paliurus polysaccharides on streptozotocin-induced diabetic nephropathy in rats显示文摘OBJEVTIVE:To investigate the efficacy of Cyclocarya paliurus(C.paliurus)polysaccharides on streptozotocin-induced diabetic nephropathy in rats.METHODS:Rats were divided into 6 groups,including group of normal control,group of diabetic control,group of metformin treatment,low-dose group of C.paliurus polysaccharides treatment,middle-dose group of C.paliurus polysaccharides treatment and high-dose group of C.paliurus polysaccharides treatment.Histological analysis of kidney was analyzed using hematoxilin and eosin.Levels of blood glucose,creatinine,urea,uric acid were determined by spectrophotometry.Anti-oxidative enzymes were measured by real-time polymerase chain reaction(PCR)and enzyme-linked immunosorbent assay(ELISA).Advanced glycation end products(AGEs)and transforming growth factor-β1(TGF-β1)level was measured by ELISA.RESULTS:Abnormal changes were observed in the group of diabetic control characterized by atrophy of the renal glomeruli with hypercellularity,congestion of glomerular tufts,dilation of the renal spaces,and degeneration of renal tubule.Compared with that of normal group,blood glucose,creatinine,urea,uric acid level was significantly increased in the group of diabetic control.Superoxide dismutase,catalase,glutathione peroxidase,glutathione reductase level was significantly decreased,but AGEs and TGF-β1 level was significantly increased.By contrast,administration of C.paliurus polysaccharides and metformin could reverse the above-mentioned results of the group of diabetic control,especially in the high-dose group of C.paliurus polysaccharides.CONCLUSION:Our findings suggest that C.paliurus polysaccharides may play a protecting role for nephropathy of diabetic rats by lowering glucose,creatinine,urea,uric acid level,enhancing the antioxidative ability,and reducing AGEs and TGF-β1 expression.Xia Xichao Mao Dongxue Dai Hongmei Wu Xi Zhang Zuyuan Wang Huaying Zhou Wenwen Dong Yanmei Wang Mengqi Li Yuan Shao Xiangyang Ouyang Jingfeng 2020Journal of Traditional Chinese Medicine2020,40,6:9
7Epidemiology,clinical and laboratory characteristics of currently alive HIV-1 infected former blood donors naive to antiretroviral therapy in Anhui Province,China显示文摘Background Unregulated commercial blood/plasma collection among farmers occurred between 1992 and 1995 in central China and caused the second major epidemic of human immunodeficiency virus type 1 (HIV-1) infection in China. It is important to characterize HIV-1-infected former blood donors and to study characteristics associated with disease progression for future clinical intervention and vaccine development. Methods A cross-sectional study was performed on HIV-1-infected former blood donors (FBDs) and age-matched HIV-seronegative local residents. Demographic, epidemiologic, clinical and key laboratory data were collected from all study participants. Both unadjusted and adjusted multivariate linear regressions were employed to analyze the association of the decrease of CD4+ T-cell counts with other characteristics. Results Two hundred and ninety-four HIV-1-infected FBDs and 59 age-matched HIV-seronegative local residents were enrolled in this study. The unregulated blood/plasma collection occurred more than a decade (10.8 -12.8 years) ago, which caused the rapid spread of HIV-1 infection and the high prevalence of co-infection with hepatitis C virus (HCV, 89.5%); hepatitis B virus (HBV) co-infection was observed in only 11 HIV+participants (3.7%). Deterioration in both clinical manifestation and laboratory parameters and increase of viral loads were observed in parallel with the decrease of CD4+ T-cell counts. The decrease of total lymphocyte counts (P<0.001) and hemoglobin levels (P<0.001) and the appearance of dermatosis (P=0.03) were observed in parallel with the decrease of CD4+ T-cell counts whereas viral loads (P<0.001) and CD8+ T-cell counts (P=0.01) were inverselyassociated with CD4+ T-cell counts. Conclusions Co-infection with HCV but not HBV is highly prevalent among HIV-1-infected FBDs. CD4+ T-cell counts is a reliable indicator for disease progression among FBDs. Total lymphocyte counts, hemoglobin level and appearance of dermatosis were positively associated with CD8+ T-cell counts and viral loads were inversely associated with the decreased CD4+ T-cell counts.XU Jian-qing WANG Jian-jun HAN Li-feng XU Chen RUAN Yu-hua XU Zhen-hou CHEN Xi LIU Zhen-dong WANG Jun SU Bing DING Xin-ping GAO Bing GU Yong-bin CAO Xiao-yun XING Hui HONG Kun-xue PENG Hong ZHAO Quan-bi YUAN Lin FENG Yi ZHANG Gui-yun MA Li-ying WU Lan SHAO Yi-ming 2006Chinese Medical Journal2006,,23:9
8Comparison of Xpert MTB/RIF, Real Amp, and CPA Tests in Detecting Mycobacterium tuberculosis显示文摘Today, tuberculosis (TB) remains a global public health threat associated with significantly high rates of morbidity and mortality. The World Health Organization's (WHO) Global Tuberculosis Report 2018[1] has reported that in 2017, 10.0 million people across the world had developed TB diseases that resulted in an estimated 1.6 million deaths, and 889, 000 people developed TB in China that led to 39, 000 TB-related deaths. Therefore, rapid and accurate detection of Mycobacterium tuberculosis (MTB) is important for initiating early treatment and reducing mortality. Traditional diagnostic methods for pulmonary TB incorporate chest radiography and sputum smear microscopy;however, several cases of tuberculosis go undiagnosed because of the low sensitivity of smear microscopy[2].OU Xi Chao LI Hui LIU Dong Xin XIA Hui MA Xiao Guang WANG Shao Hua WANG Sheng Fen ZHU Yan Kun ZHAO Bing ZHAO Yan Lin 2019Biomedical and Environmental Sciences2019,32,3:9
9A spatial-explicit dynamic vegetation model that couples carbon,water,and nitrogen processes for arid and semiarid ecosystems显示文摘Arid and semiarid ecosystems,or dryland,are important to global biogeochemical cycles.Dryland's community structure and vegetation dynamics as well as biogeochemical cycles are sensitive to changes in climate and atmospheric composition.Vegetation dynamic models has been applied in global change studies,but the complex interactions among the carbon(C),water,and nitrogen(N) cycles have not been adequately addressed in the current models.In this study,a process-based vegetation dynamic model was developed to study the responses of dryland ecosystems to environmental changes,emphasizing on the interactions among the C,water,and N processes.To address the interactions between the C and water processes,it not only considers the effects of annual precipitation on vegetation distribution and soil moisture on organic matter(SOM) decomposition,but also explicitly models root competition for water and the water compensation processes.To address the interactions between C and N processes,it models the soil inorganic mater processes,such as N mineralization/immobilization,denitrification/nitrification,and N leaching,as well as the root competition for soil N.The model was parameterized for major plant functional types and evaluated against field observations.Chi ZHANG ChaoFan LI Xi CHEN GePing LUO LongHui LI XiaoYu LI Yan YAN Hua SHAO 2013Journal of Arid Land2013,5,1:8
10Optimizing mechanical property and cytocompatibility of the biodegradable Mg-Zn-Y-Nd alloy by hot extrusion and heat treatment显示文摘The Mg-Zn-Y-Nd alloy is a new type of degradable material for biomedical application. In the present study, Mg-6Zn-1.2Y-0.8Nd alloy was fabricated, and then extrusion and heat treatment were conducted to optimize its mechanical properties and cytocompatibility. The microstructure observation, mechanical property, degradation behavior and cytocompatibility tests were conducted on the Mg-Zn-Y-Nd alloy with three different states: as-cast(alloy C), as-extruded(alloy E) and extruded + heat treated(alloy EH).The results show that alloy C consists of coarse grains and continuous secondary phases. The extrusion process has caused incomplete recrystallization, and results in a mixed grain structure of elongated grains and small equiaxed grains(alloy E). The heat treatment process has promoted the recrystallization and homogenized the grain structure(alloy EH). Both the strength and ductility of the alloy has been improved by extrusion, but the following heat treatment has decreased the strength and increased the ductility.The degradation behavior of the alloy C and E alloys does not show much difference, but improves slightly in alloy EH, because the heat treatment has homogenized the microstructure and released the residual stress in the alloy. The directly and indirectly cell viability tests indicate that alloy EH exhibits the best cytocompatibility, which should be ascribed to its relative uniform degradation and low ion releasing rate. In summary, the combination of hot extrusion and heat treatment could optimize the mechanical property and cytocompatibility of the Mg-Zn-Y-Nd alloy together, which is beneficial for the future application of the alloy.Yiyuan Kang Beining Du Yueming Li Baojie Wang Liyuan Sheng Longquan Shao Yufeng Zheng Tingfei Xi 2019Journal of Materials Science & Technology2019,35,1:8
11A mesoscale eddy detection method of specific intensity and scale from SSH image in the South China Sea and the Northwest Pacific显示文摘Mesoscale eddies exist almost everywhere in the ocean and play important roles in the ocean circulation of the world. These eddies may cause sound spread singular regions and bring great influences to the upwater ship and underwater aircraft. Due to the lack of hydrographic survey datasets, study of mesoscale eddies has been greatly restricted. Fortunately, satellite altimeter provided an effective way to study mesoscale eddies. An automatic detection algorithm is introduced to detect mesoscale eddies of specific intensity and spatial/temporal scale based on satellite sea surface height(SSH) data and the algorithm is applied in a strong eddy activity region: the South China Sea and the Northwest Pacific. The algorithm includes four steps. The first step is preprocessing of the SSH image, which includes elimination of error SSH data and interpolation. The second step is to detect suspected mesoscale eddies from preprocessed SSH images by dynamic threshold adjustment and morphological method, and the suspected mesoscale eddy detection includes two procedures: suspected mesoscale eddy core region detection and suspected mesoscale eddy brim extraction. The third step is to pick out mesoscale eddies satisfied with specified criteria from suspected mesoscale eddies. The criteria include three items, that is, intensity criterion, spatial scale, criterion and temporal scale criterion. The last step is algorithm performance analysis and verification. The algorithm has the capability of adaptive parameter adjustment, and can extract mesoscale eddies of interested intensity and spatial/temporal scale. The paper can provide a basis for analyzing space-time characteristics of mesoscale eddy in the South China Sea and the Northwest Pacific.ZHANG ChunHua XI XiaoLiang LIU SongTao SHAO LianJun HU XiaoHua 2014Science China Earth Sciences2014,57,8:8
12Three-dimensional Porous Networks of Ultra-long Electrospun SnO_2 Nanotubes with High Photocatalytic Performance显示文摘Recent progress in nanoscience and nanotechnology creates new opportunities in the design of novel SnO2 nanomaterials for photocatalysis and photoelectrochemical. Herein, we firstly highlight a facile method to prepare threedimensional porous networks of ultra-long SnO2 nanotubes through the single capillary electrospinning technique.Compared with the traditional SnO2 nanofibers, the as-obtained three-dimensional porous networks show enhancement of photocurrent and photocatalytic activity, which could be ascribed to its improved light-harvesting efficiency and high separation efficiency of photogenerated electron–hole pairs. Besides, the synthesis route delivered three-dimensional sheets on the basis of interwoven nanofibrous networks, which can be readily recycled for the desirable circular application of a potent photocatalyst system.Peng Zhang Lijie Wang Xi Zhang Junhua Hu Guosheng Shao 2015Nano-Micro Letters2015,7,1:8
13Production of Free Amino Acid and Short Peptide Fertilizer from Rapeseed Meal Fermentation Using Bacillus flexus NJNPD41 for Promoting Plant Growth显示文摘Free amino acids and short peptides(FAPS)that play an important role in plant nutrition can be extracted from rapeseed meal(RSM)by microbial enzymolysis.The enzymolytic activity of one bacterial strain isolated from RSM for the production of FAPS fertilizer(FAPSF)via solid-state fermentation,as well as its detoxification activity for isothiocyanates and oxazolidinethione,was investigated in this study.The strain NJNPD41 isolated from RSM piled-soil possessed effective proteolytic activity and was identified as Bacillus flexus on the basis of its morphological,physiological,and biochemical properties,as well as 16S rDNA analysis.Compared to the uninoculated control,inoculation with the strain NJNPD41 significantly increased the yield of total free amino acids and short peptides by 115%and decreased the content of isothiocyanates and oxazolidinethione by 53%and 60%,respectively,after solid-state fermentation.The pot and field experiments showed that FAPSF significantly promoted eggplant growth and enhanced the fruit yield and quality of eggplant compared to the control.In conclusion,this study provided a novel method for the high-value utilization of RSM to produce high-quality and low-toxicity FAPSF using the newly isolated strain B.flexus NJNPD41.LIU Hongjun ZHONG Xi HUANG Yan QIAO Cece SHAO Cheng LI Rong SHEN Qirong 2018Pedosphere2018,28,2:5
14RADIAL GROWTH OF HUASHAN PINE AND ITS RESPONSE TO CLIMATE显示文摘Huashan pine (Finus armandii Franch) is a poential species for dendroclimatic study. Ring-width cores were sampled for four stands of two sites from the eastern extreme of the Qinling Mountains. The ring-width chronologies developed in this study cover a maximum Period from A.D. 1359 t0 1992 and show high common chronology variance over the common period 1911-1960.All the chronologies are significantly correlated with all others, and the degree of correlation appears related to tree age. Response function analyses reveal that from 41 to 75 Percent of chronology variance can be accounted for by monthly mean air temperature and monthly total precipitation. A sufficiently strong correlation of ringwidth index with May and June rainfall and June temperature exists, implying soil moisture to be a limiting factor for Huashan pine growth. The association displayed by response diagrams between narrow rings, low precipitation, and high temperature during spring and early summer indicates a promising potential of ring widths for reconstruction of spring drought for the study area.Shao Xuemei, Wu Xiangding(Institute of Geography, CAS, Beijing 100101 People’s Republic of China)Xi’an Laboratory of Loess and Quaternary Geology, CAS,xi’an 710061 People’s Republic of China) 1994Journal of Geographical Sciences1994,4,Z2:5
15Downregulation of mi R ‐101 in gastric cancer correlates with cyclooxygenase‐2 overexpression and tumor growth显示文摘Xiao‐Pu He Yun Shao Xiao‐Lin Li Wei Xu Guo‐Sheng Chen Huan‐Huan Sun Hai‐Chen Xu Xian Xu Dan Tang Xi‐Feng Zheng Yi‐Ping Xue Guo‐Chang Huang Wei‐Hao Sun 2012FEBS J2012,,22:4
16Mucosal-associated invariant T cells in hepatitis B virus-related liver failure显示文摘BACKGROUND Liver failure has high mortality and poor prognosis,and establishing new reliable markers for predicting its prognosis is necessary.Mucosal-associated invariant T(MAIT)cells are a novel population of innate-like lymphocytes involved in inflammatory liver disease,and their potential role in liver failure remains unclear.AIM To investigate alteration of circulating MAIT cells and assess its prognostic value in patients with hepatitis B virus(HBV)-related liver failure.METHODS We recruited 55 patients with HBV-related liver failure,48 patients with chronic hepatitis B and 40 healthy controls(HCs)from Nantong Third People’s Hospital Affiliated to Nantong University.Peripheral blood mononuclear cells were isolated,and the percentage and number of circulating MAIT cells were detected by flow cytometry.Plasma levels of interleukin(IL)-7,IL-12p70,IL-18 and interferon-αwere measured by Luminex assay.RESULTS Circulating MAIT cells were significantly decreased in HBV-related liver failure patients(percentage:2.00±1.22 vs 5.19±1.27%,P<0.0001;number:5.47±4.93 vs 84.43±19.59,P<0.0001)compared with HCs.More importantly,there was a significant reduction of MAIT cells in patients with middle/late-stage compared with early-stage liver failure.Circulating MAIT cells partially recovered after disease improvement,both in percentage(4.01±1.21 vs 2.04±0.95%,P<0.0001)and in cell count(17.24±8.56 vs 7.41±4.99,P<0.0001).The proportion(2.29±1.01 vs 1.58±1.38%,P<0.05)and number(7.30±5.70 vs 2.94±1.47,P<0.001)of circulating MAIT cells were significantly higher in the survival group than in the dead/liver transplantation group,and the Kaplan–Meier curve showed that lower expression of circulating MAIT cells(both percentage and cell count)predicted poor overall survival(P<0.01).Also,the levels of IL-12(20.26±5.42 pg/mL vs 17.76±2.79 pg/mL,P=0.01)and IL-18(1470.05±1525.38 pg/mL vs 362.99±109.64 pg/mL,P<0.0001)were dramatically increased in HBV-related liver failure patients compared with HCs.CONCLUSION Circulating MAIT cells may play an important role in the process of HBV-related liver failure and can be an important prognostic marker.Hong Xue Han Li Lin-Ling Ju Xu-Dong Han Tiao-Chun Cheng Xi Luo Lin Chen Jian-Guo Shao Yong-Jun She Zhao-Lian Bian 2020World Journal of Gastroenterology2020,26,31:4
17Pore Structure Characterization and Classification of in-Source Tight Oil Reservoirs in Northern Songliao Basin显示文摘There is no clear consensus on the definition of tight oil in literature;however,more and more researchers accept that tight reservoirs refer to those with permeability less than 1.0 mD or 0.1 mD in the subsurface condition(Jia et al.,2012;Zhao et al.,2012;Zhao,2012;Zou et al.,2014).The Cretaceous Qingshankou formation in the Songliao Basin is rich in tight oil,in which Gaotaizi oilFENG Zihui SHAO Hongmei WANG Cheng LU Xi 2015Acta Geologica Sinica(English Edition)2015,89,A01:4
18Impact Analysis of Solar Irradiance Change on Precision Orbit Determination of Navigation Satellites显示文摘Solar radiation pressure is the main driving force and error source for precision orbit determination of navigation satellites.It is proportional to the solar irradiance,which is the'sun constant'.In regular calculation,the'solar constant'is regard as a constant.However,due to the existence of sunspots,flares,etc.,the solar constant is not fixed,the change in the year is about 1%.To investigate the variation of solar irradiance,we use interpolation and average segment modeling of total solar irradiance data of SORCE,establishing variance solar radiation pressure(VARSRP)model and average solar radiation pressure(AVESRP)model based on the built solar pressure model(SRPM)(constant model).According to observation data of global positioning system(GPS)and Beidou system(BDS)in 2015 and comparing the solar pressure acceleration of VARSRP,AVESRP and SRPM,the magnitude of change can reach 10-10 m/s^2.In addition,according to the satellite precise orbit determination,for GPS satellites,the results of VARSRP and AVESRP are slightly smaller than those of the SRPM model,and the improvement is between 0.1 to 0.5 mm.For geosynchronous orbit(GEO)satellites of BDS,The AVESRP and VARSRP have an improvement of 3.5 mm and 4.0 mm,respectively,based on overlapping arc,and SLR check results show the AVESRP model and the VARSRP model is improved by 2.3 mm and 3.5 mm,respectively.Moreover,the change of inclined geosynchronous orbit(IGSO)satellites and medium earth orbit(MEO)satellites is relatively small,and the improvement is smaller than 0.5 mm.ZHANG Yan WANG Xiaoya XI Kewei SHAO Fan 2019Transactions of Nanjing University of Aeronautics and Astronautics2019,36,6:4
19Prognostic significance of regional lymphadenectomy in T1b gallbladder cancer:Results from 24 hospitals in China显示文摘BACKGROUND Whether regional lymphadenectomy(RL)should be routinely performed in patients with T1b gallbladder cancer(GBC)remains a subject of debate.AIM To investigate whether RL can improve the prognosis of patients with T1b GBC.METHODS We studied a multicenter cohort of patients with T1b GBC who underwent surgery between 2008 and 2016 at 24 hospitals in 13 provinces in China.The logrank test and Cox proportional hazards model were used to compare the overall survival(OS)of patients who underwent cholecystectomy(Ch)+RL and those who underwent Ch only.To investigate whether combined hepatectomy(Hep)improved OS in T1b patients,we studied patients who underwent Ch+RL to compare the OS of patients who underwent combined Hep and patients who did not.RESULTS Of the 121 patients(aged 61.9±10.1 years),77(63.6%)underwent Ch+RL,and 44(36.4%)underwent Ch only.Seven(9.1%)patients in the Ch+RL group had lymph node metastasis.The 5-year OS rate was significantly higher in the Ch+RL group than in the Ch group(76.3%vs 56.8%,P=0.036).Multivariate analysis showed that Ch+RL was significantly associated with improved OS(hazard ratio:0.51;95%confidence interval:0.26-0.99).Among the 77 patients who underwent Ch+RL,no survival improvement was found in patients who underwent combined Hep(5-year OS rate:79.5%for combined Hep and 76.1%for no Hep;P=0.50).CONCLUSION T1b GBC patients who underwent Ch+RL had a better prognosis than those who underwent Ch.Hep+Ch showed no improvement in prognosis in T1b GBC patients.Although recommended by both the National Comprehensive Cancer Network and Chinese Medical Association guidelines,RL was only performed in 63.6%of T1b GBC patients.Routine Ch+RL should be advised in T1b GBC.Tai Ren Yong-Sheng Li Xue-Yi Dang Yang Li Zi-Yu Shao Run-Fa Bao Yi-Jun Shu Xu-An Wang Wen-Guang Wu Xiang-Song Wu Mao-Lan Li Hong Cao Kun-Hua Wang Hong-Yu Cai Chong Jin Hui-Han Jin Bo Yang Xiao-Qing Jiang Jian-Feng Gu Yun-Fu Cui Zai-Yang Zhang Chun-Fu Zhu Bei Sun Chao-Liu Dai Lin-Hui Zheng Jing-Yu Cao Zhe-Wei Fei Chang-Jun Liu Bing Li Jun Liu Ye-Ben Qian Yi Wang Ya-Wei Hua Xi Zhang Chang Liu Wan-Yee Lau Ying-Bin Liu 2021World Journal of Gastrointestinal Surgery2021,13,2:3
20Thyroid dysfunction in Chinese hepatitis C patients: Prevalence and correlation with TPOAb and CXCL10显示文摘AIM: To investigate the relationship among pretreatment serum CXC chemokine ligand 10(CXCL10),thyroid peroxidase antibody(TPOAb) levels and thyroid dysfunction(TD) in Chinese hepatitis C patients.METHODS: One hundred and thirty-nine treatmentnaive genotype 1 chronic hepatitis C patients with no history of TD or treatment with thyroid hormones were enrolled in this study.Patients underwent peginterferon alfa-2a/ribavirin(Peg IFNα-2a/RBV) treatment for 48 wk,followed by detection of clinical factors at each follow-up point.Hepatitis C virus(HCV) antibodies were analyzed using microsomal chemiluminescence,and serum HCV RNA was measured by real-time PCR assay at 0,4,12,24 and 48 wk after the initiation of therapy and 24 wk after the end of therapy.To assess thyroid function,serum thyroid stimulating hormone(TSH),free thyroxine(FT4),free triodothyronine(FT3) and TPOAb/thyroglobulin antibody(TGAb) levels were determined using chemiluminescent immunoassays every 3 mo.Serum CXCL10 levels were determined at baseline.RESULTS: The prevalence of TD was 18.0%.Twentyone(84.0%) out of twenty-five patients exhibited normal thyroid function at week 24 after therapy.The rate of sustained virological response to Peg IFNα-2a/RBV in our study was 59.0%(82/139),independent of thyroid function.Pretreatment serum CXCL10 levels were significantly increased in patients with euthyroidstatus compared with patients with TD(495.2 ± 244.2 pg/m L vs 310.0 ± 163.4 pg/m L,P = 0.012).Patients with TD were more frequently TPOAb-positive than non-TD(NTD) patients(24.2% vs 12.3%,P = 0.047) at baseline.Three of the one hundred and fifteen patients without TPOAb at baseline developed TD at the end of treatment(37.5% vs 2.6%,P = 0.000).Female patients exhibited an increased risk for developing TD compared with male patients(P = 0.014).CONCLUSION: Lower pretreatment serum CXCL10 levels are associated with TD,and TD prevalence increases in female patients and patients who are positive for TPOAb at baseline.Ren-Wen Zhang Cui-Ping Shao Na Huo Min-Ran Li Hong-Li Xi Min Yu Xiao-Yuan Xu 2015World Journal of Gastroenterology2015,21,33:3
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