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150篇 您的检索式:作者名="Qiu Lan"
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1Clinicopathological features and prognosis assessment of extranodal follicular dendritic cell sarcoma显示文摘AIM: To establish a model for prognosis assessment of extranodal follicular dendritic cell (FDC) sarcoma.METHODS: Nine lesions were examined by routine and molecular approaches.Clinicopathological factors from the new cases and 97 reported cases were analyzed for their prognostic values.RESULTS: The current lesions were found in f ive male and four female patients,located mainly in the head and neck area and averaging 7.2 cm in size.Six patients had recurrence or metastasis and three remained free of disease.The 106 patients (male/female ratio,1.1:1) were aged from 9 to 82 years (median,44 years).The tumor sizes ranged from 1.5 to 21 cm (mean,7.4 cm).Abdominal/pelvic region was affected most frequently (43%).Surgical resection was performed in 100 patients,followed by radiation and/or chemotherapy in 35 of them.Follow-up data were available in 91 cases,covering a period of 3-324 mo (mean,27 mo;median,19 mo).Of the informative cases,38 (42%) had recurrence or metastasis,and 12 (13%) died of the disease.These tumors were classif ied histologically into lowand high-grade lesions.A size ≥ 5 cm (P = 0.003),highgrade histology (P = 0.046) and a mitotic count ≥ 5/10 HPF (P = 0.013) were associated with tumor recurrence.The lesions were def ined as low-,intermediateand high-risk tumors,and their recurrence rates were 16%,46% and 73%,and their mortality rates 0%,4% and 45%,respectively.CONCLUSION: Extranodal FDC tumors behave like soft tissue sarcomas.Their clinical outcomes are variable and can be evaluated according to their sizes and grades.Li, Lan Shi, Yong-Hong Guo, Zhi-Juan Qiu, Tian Guo, Lei Yang, Hong-Ying Zhang, Xun Zhao, Xin-Ming Su, Qin 2010World Journal of Gastroenterology2010,16,20:18
2Dynamic and Static Recrystallization Behavior of Low Carbon High Niobium Microalloyed Steel显示文摘The recrystallization behavior of a low carbon high niobium microalloyed steel was investigated using continuous and interrupted hot compression tests.The results showed that the initiation of dynamic recrystallization(DRX)could be detected from inflection in the plot of the strain hardening rate against stress regardless of the stress peak appearance.According to the Zener-Hollomon parameter equation,the activity energy of DRX(Qdef)was obtained and a new modified expression calculating Qdef was proposed in consideration of the chemical composition of experimental steel.Applying the 2% offset method,the static softening fraction was determined.The graphic representation of the softening fraction vs interruption time gave the information about the non-static recrystallization temperature(about 1000 ℃)and the relationship of precipitation-time-temperature.Static recrystallization kinetics followed the Avrami's law at high deformation temperature,and different values of the exponent m were given to illustrate the effect of niobium element on static recrystallization at different deformation temperatures.LAN Liang yun QIU Chun lin ZHAO De-wen GAO Xiu hua DU Lin-xiu 2011Journal of Iron and Steel Research(International)2011,18,1:16
3Generation of super-resolved optical needle and multifocal array using graphene oxide metalenses显示文摘Ultrathin flat metalenses have emerged as promising alternatives to conventional diffractive lenses,offering new possibilities for myriads of miniaturization and interfacial applications.Graphene-based materials can achieve both phase and amplitude modulations simultaneously at a single position due to the modification of the complex refractive index and thickness by laser conversion from graphene oxide into graphene like materials.In this work,we develop graphene oxide metalenses to precisely control phase and amplitude modulations and to achieve a holistic and systematic lens design based on a graphene-based material system.We experimentally validate our strategies via demonstrations of two graphene oxide metalenses:one with an ultra-long(~16λ)optical needle,and the other with axial multifocal spots,at the wavelength of 632.8 nm with a 200 nm thin film.Our proposed graphene oxide metalenses unfold unprecedented opportunities for accurately designing graphene-based ultrathin integratable devices for broad applications.Hongtao Wang Chenglong Hao Han Lin Yongtian Wang Tian Lan Chengwei Qiu Baohua Jia 2021Opto-Electronic Advances2021,4,2:10
4Allele-aware chromosome-level genome assembly of Artemisia annua reveals the correlation between ADS expansion and artemisinin yield显示文摘Artemisia annua is the major natural source of artemisinin,an anti-malarial medicine commonly used worldwide.Here,we present chromosome-level haploid maps for two A.annua strains with different artemisinin contents to explore the relationships between genomic organization and artemisinin production.High-fidelity sequencing,optical mapping,and chromatin conformation capture sequencing were used to assemble the heterogeneous and repetitive genome and resolve the haplotypes of A.annua.Approximately 5o,ooo genes were annotated for each haplotype genome,and a triplication event that occurred approximately 58.12million years ago was examined for the first time in this species.A total of 3,903,467-5,193,414 variants(SNPs,indels,and structural variants)were identified in the 1.5-Gb genome during pairwise comparison between haplotypes,consistent with the high heterozygosity of this species.Genomic analyses revealed a correlation between artemisinin concents and the copy number of amorpha-4,11-dienes ynthasegenes.This correlation was further confirmed by resequencing of 36A.annua samples with varied artemisinin contents.Circular consensus sequencing of transcripts facilitated the detection of paralog expression.Collectively,our study provides chromosome-level allele-aware genome assemblies for two A.annua strains and new insights into the biosynthesis of artemisinin and its regulation,which will contribute to conquering malaria worldwide.Baosheng Liao Xiaofeng Shen Li Xiang Shuai Guo Shiyu Chen Ying Meng Yu Liang Dandan Ding Junqi Bai Dong Zhang Tomasz Czechowski Yi Li Hui Yao Tingyu Mai Caroline Howard Chao Sun Haitao Liu Jiushi Liu Jin Pei Jihai Gao Jigang Wang Xiaohui Qiu Zhihai Huang Hongyi Li Ling Yuan Jianhe Wei lan Graham Jiang Xu Boli Zhang Shilin Chen 2022Molecular Plant2022,15,8:9
5Study on fire-retardant nanocrystalline Mg-Al layered double hydroxides synthesized by microwavecrystallization method显示文摘Nanocrystalline Mg-Al layered double hydroxides with the particle size being 10—40 nm were firstly prepared by the technology of the microwave-crystallization and the vari- able-speed addition of the alkali. The obtained samples were characterized by TEM and XRD. The roles of the microwave and addition rate of the alkali were also discussed in the present work. The thermal decomposition activation energy of the nano-LDHs was calculated according to their TG, DTG and DSC curves by the Ozawa method. The results showed that the thermal decom- position of the nano-LDHs had four steps. Thereby the decomposition model of the nano-LDHs was supposed according to the analysis of their thermal decomposition. After PS, ABS, HDPE and PVC were filled with the nano-LDHs, their LOI values could be increased up to 28, 27, 26 and 33, respectively. When the fire-retardant coating contained 1.9% of the nano-LDHs that was 0.27 times the dosage of the conventional TiO2, its fire endurance time reached 32.75min that was 7.05 min longer than that of the best coating containing TiO2 according to the model big-panel combustion test method.ZHANG Zejiang1, XU Chenghua1, QIU Fali1, MEI Xiujuan2, LAN Bin2 & ZHANG Shuosheng2 1. Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China 2. Sichuan Fire Research Institute of Public Safety Ministry, Chengdu 611830, China 2004Science China Chemistry2004,47,6:9
6Association of Overlapped and Un-overlapped Comorbidities with COVID-19 Severity and Treatment Outcomes: A Retrospective Cohort Study from Nine Provinces in China显示文摘Objective Several COVID-19 patients have overlapping comorbidities. The independent role of each component contributing to the risk of COVID-19 is unknown, and how some non-cardiometabolic comorbidities affect the risk of COVID-19 remains unclear.Methods A retrospective follow-up design was adopted. A total of 1,160 laboratory-confirmed patients were enrolled from nine provinces in China. Data on comorbidities were obtained from the patients’ medical records. Multivariable logistic regression models were used to estimate the odds ratio(OR) and 95% confidence interval(95% CI) of the associations between comorbidities(cardiometabolic or non-cardiometabolic diseases), clinical severity, and treatment outcomes of COVID-19.Results Overall, 158(13.6%) patients were diagnosed with severe illness and 32(2.7%) had unfavorable outcomes. Hypertension(2.87, 1.30–6.32), type 2 diabetes(T2 DM)(3.57, 2.32–5.49),cardiovascular disease(CVD)(3.78, 1.81–7.89), fatty liver disease(7.53, 1.96–28.96), hyperlipidemia(2.15, 1.26–3.67), other lung diseases(6.00, 3.01–11.96), and electrolyte imbalance(10.40, 3.00–26.10)were independently linked to increased odds of being severely ill. T2 DM(6.07, 2.89–12.75), CVD(8.47,6.03–11.89), and electrolyte imbalance(19.44, 11.47–32.96) were also strong predictors of unfavorable outcomes. Women with comorbidities were more likely to have severe disease on admission(5.46,3.25–9.19), while men with comorbidities were more likely to have unfavorable treatment outcomes(6.58, 1.46–29.64) within two weeks.Conclusion Besides hypertension, diabetes, and CVD, fatty liver disease, hyperlipidemia, other lung diseases, and electrolyte imbalance were independent risk factors for COVID-19 severity and poor treatment outcome. Women with comorbidities were more likely to have severe disease, while men with comorbidities were more likely to have unfavorable treatment outcomes.MA Yan ZHU Dong Shan CHEN Ren Bo SHI Nan Nan LIU Si Hong FAN Yi Pin WU Gui Hui YANG Pu Ye BAI Jiang Feng CHEN Hong CHEN Li Ying FENG Qiao GUO Tuan Mao HOU Yong HU Gui Fen HU Xiao Mei HU Yun Hong HUANG Jin HUANG Qiu Hua HUANG Shao Zhen JI Liang JIN Hai Hao LEI Xiao LI Chun Yan LI Min Qing LI Qun Tang LI Xian Yong LIU Hong De LIU Jin Ping LIU Zhang MA Yu Ting MAO Ya MO Liu Fen NA Hui WANG Jing Wei SONG Fang Li SUN Sheng WANG Dong Ting WANG Ming Xuan WANG Xiao Yan WANG Yin Zhen WANG Yu Dong WU Wei WU Lan Ping XIAO Yan Hua XIE Hai Jun XU Hong Ming XU Shou Fang XUE Rui Xia YANG Chun YANG Kai Jun YUAN Sheng Li ZHANG Gong Qi ZHANG Jin Bo ZHANG Lin Song ZHAO Shu Sen ZHAO Wan Ying ZHENG Kai ZHOU Ying Chun ZHU Jun Teng ZHU Tian Qing ZHANG Hua Min WANG Yan Ping WANG Yong Yan 2020Biomedical and Environmental Sciences2020,33,12:8
7NOD-like receptors mediated activation of eosinophils interacting with bronchial epithelial cells: a link between innate immunity and allergic asthma显示文摘对细菌的感染的天生的免疫的关键 intracytosolic 模式识别受体是象受体(NLR ) 一样的核苷酸绑定 oligomerization 领域(点头) 。我们阐明了 NOD1 和人的嗜曙红血球的调停 NOD2 的激活,为过敏发炎的主要受动器房间,在在过敏气喘与人的支气管的上皮的 BEAS-2B 房间交往之上。嗜曙红血球组成地表示了 NOD1,2,但是展出了不重要的回答由 NOD1 ligand γ 在刺激之上释放 chemokines; -D-glutamyl-meso-diaminopimelic 酸(即弹跳) 和 NOD2 ligand muramyl dipeptide (MDP ) 。然而,即弹跳和 MDP 能显著地 CD18 的 upregulate 房间表面表示和细胞间的粘附分子(ICAM ) 嗜曙红血球上的 -1 和 BEAS-2B 房间上的 ICAM-1,以及在 coculture 系统导致 chemokines CCL2 和 CXCL8 版本(所有 P < 0.05 ) 。嗜曙红血球和 BEAS-2B 房间在在即弹跳或 MDP 刺激之上的 coculture 系统是为 CXCL8 和 CCL2 版本的主要来源。在嗜曙红血球和 BEAS-2B 房间之间的直接相互作用为 CCL2 版本负责,并且可溶的调停人在 CXCL8 版本被含有。英皇家空军之阶级最低之兵和 NF-κ B 玩为在 coculture 的粘附分子和 chemokines 的表示的规章的角色。有 NOD1,2 ligand 的处理能导致 subepithelial 纤维变性并且显著地提高全部的 IgE,为嗜曙红血球的 chemokine CCL5 和 T 助手类型的浆液集中 2 (Th2 )在 敏化ovalbumin 的过敏气喘的老鼠的 bronchoalveolar lavage 液体的房间和气喘 Th2 cytokine IL-13 (所有 P < 0.05 )。这研究在经由在煽动性的航线与支气管的上皮的房间交往的嗜曙红血球的激活触发过敏气喘提供 NOD1,2 的细菌的调停感染的激活的进一步的证据。Churl Kwok Wong Shuiqing Hu Karen Ming-Lam Leungt Jie Dong Lan He Yi Jun Chu Ida Miu-Ting Chu Huai-Na Qiu Kelly Yan-Ping Liu ChristopherWai-Kei Lam 2013Cellular & Molecular Immunology2013,10,4:7
8Cycling hydrogen desorption properties and microstructures of MgH_(2)-AlH_(3)-NbF_(5) hydrogen storage materials显示文摘Magnesium hydride(MgH_(2)) is a candidate material for hydrogen storage.MgH_(2)-AlH_(3) composite shows superior hydrogen desorption properties than pure MgH_(2).However,this composite still suffers from poor cycling performance.In this work,NbF_(5) was utilized to improve the cycling properties of the MgH_(2)-AlH_(3) composite.Cycling hydrogen desorption studies show that NbF_(5) significantly improves the cycling stability of MgH_(2)-AlH_(3).The MgH_(2)-AlH_(3)-NbF_(5) composite can release about 2.7 wt% of hydrogen at 300℃ for 1 h and the hydrogen desorption capacity can maintain at 2.7 wt% for more than100 cycles.In comparison,the hydrogen desorption capacity of the MgH_(2)-AlH_(3) composite is decreasing with the cycle number increasing.The capacity is reduced from a maximum value of 3.3 wt% to about 1.0 wt% after 40 cycles.Brunauer-Emmett-Teller(BET) surface area measurements show that the particle size of MgH_(2)-AlH_(3) composite decreases after cycling,which means pulverization of the composite.NbF_(5) can to some extent suppress the pulverization of the composite during cycling,which partially contributes to the improvement of the cycling hydrogen desorption properties of the material.Xiao-Sheng Liu Hai-Zhen Liu Ning Qiu Yan-Bing Zhang Guang-Yao Zhao Li Xu Zhi-Qiang Lan Jin Guo 2021Rare Metals2021,40,4:6
9Comparison of Ozone and PM2.5 Concentrations over Urban,Suburban,and Background Sites in China显示文摘Surface ozone(O3)and fine particulate matter(PM2.5)are dominant air pollutants in China.Concentrations of these pollutants can show significant differences between urban and nonurban areas.However,such contrast has never been explored on the country level.This study investigates the spatiotemporal characteristics of urban-to-suburban and urban-tobackground difference for O3(Δ[O3])and PM2.5(Δ[PM2.5])concentrations in China using monitoring data from 1171 urban,110 suburban,and 15 background sites built by the China National Environmental Monitoring Center(CNEMC).On the annual mean basis,the urban-to-suburbanΔ[O3]is−3.7 ppbv in Beijing-Tianjin-Hebei,1.0 ppbv in the Yangtze River Delta,−3.5 ppbv in the Pearl River Delta,and−3.8 ppbv in the Sichuan Basin.On the contrary,the urban-to-suburbanΔ[PM2.5]is 15.8,−0.3,3.5 and 2.4μg m^−3 in those areas,respectively.The urban-to-suburban contrast is more significant in winter for bothΔ[O3]andΔ[PM2.5].In eastern China,urban-to-background differences are also moderate during summer,with−5.1 to 6.8 ppbv forΔ[O3]and−0.1 to 22.5μg m^−3 forΔ[PM2.5].However,such contrasts are much larger in winter,with−22.2 to 5.5 ppbv forΔ[O3]and 3.1 to 82.3μg m^−3 forΔ[PM2.5].Since the urban region accounts for only 2%of the whole country’s area,the urban-dominant air quality data from the CNEMC network may overestimate winter[PM2.5]but underestimate winter[O3]over the vast domain of China.The study suggests that the CNEMC monitoring data should be used with caution for evaluating chemical models and assessing ecosystem health,which require more data outside urban areas.Lan GAO Xu YUE Xiaoyan MENG Li DU Yadong LEI Chenguang TIAN Liang QIU 2020Advances in Atmospheric Sciences2020,37,12:5
10Increased L-arginine Production by Site-directed Mutagenesis of N-acetyl-L-glutamate Kinase and pro B Gene Deletion in Corynebacterium crenatum显示文摘Objective In Corynebacterium crenatum,the adjacent D311 and D312 of N-acetyl-L-glutamate kinase(NAGK),as a key rate-limiting enzyme of L-arginine biosynthesis under substrate regulatory control by arginine,were initially replaced with two arginine residues to investigate the L-arginine feedback inhibition for NAGK.Methods NAGK enzyme expression was evaluated using a plasmid-based method.Homologous recombination was employed to eliminate the pro B.Results The IC50 and enzyme activity of NAGK M4,in which the D311 R and D312 R amino acid substitutions were combined with the previously reported E19 R and H26 E substitutions,were 3.7-fold and 14.6% higher,respectively,than those of the wild-type NAGK.NAGK M4 was successfully introduced into the C.crenatum MT genome without any genetic markers;the L-arginine yield of C.crenatum MT-M4 was 26.2% higher than that of C.crenatum MT.To further improve upon the L-arginine yield,we constructed the mutant C.crenatum MT-M4 ?pro B.The optimum concentration of L-proline was also investigated in order to determine its contribution to L-arginine yield.After L-proline was added to the medium at 10 mmol/L,the L-arginine yield reached 16.5 g/L after 108 h of shake-flask fermentation,approximately 70.1% higher than the yield attained using C.crenatum MT.Conclusion Feedback inhibition of L-arginine on NAGK in C.crenatum is clearly alleviated by the M4 mutation of NAGK,and deletion of the pro B in C.crenatum from MT to M4 results in a significant increase in arginine production.ZHANG Bin WAN Fang QIU Yu Lou CHEN Xue Lan TANG Li CHEN Jin Cong XIONG Yong Hua 2015Biomedical and Environmental Sciences2015,28,12:5
11An epidemiology study of fecal incontinence in adult Chinese women living in urban areas显示文摘Background:Fecal incontinence(FI)has been shown to be a common symptom in Western countries;however,there is few researches focusing on its epidemic condition in Chinese women.We conducted this national population-based epidemiology study to estimate the prevalence and risk factors of FI among adult Chinese women living in urban regions.Methods:This is a subgroup analysis of a national population-based epidemiology study of FI.Total 28,196 adult women from urban regions of six provinces and municipalities participated in this research from 2014 to 2015.They finished the questionnaire under the direction of trained interviewers.FI was defined as accidental leakage of flatus and/or liquid or solid stool at least once in the past.The FI prevalence trend and risk factors were identified by the Cochran-Armitage test,Chi-square test,and multivariable logistic regression.Results:The prevalence of FI in adult females in urban China was 0.43%(95%confidence interval:0.35%-0.51%).Among women with FI,42.96%,82.96%,and 42.22%reported having leakage of solid,liquid stool,and gas,respectively.The overall FI prevalence and the incidence rate of solid stool/liquid stool/gas leakage increased with age.The mean Wexner score was 4.0%and 12.0%FI patients reported Wexner score≥9.Body mass index≥24 kg/m2,pelvic organ prolapses,chronic constipation,chronic cough,alcohol consumption,physical diseases including chronic bronchitis and cancer,gynecological diseases like gynecological inflammation are risk factors for FI.Vaginal delivery was the risk factor for FI in females with labor history.Conclusions:FI was not a common symptom in adult Chinese women living in urban areas and there were some potential modifiable risk factors.Yuan Yuan Lin Qiu Zhi-Yi Li Lei Zhang Tao Xu Jing-He Lang Zhao-Ai Li Jian Gong Qing Liu Xiao-Chun Liu Jun-Tao Wang Zhi-Jun Xia Zhu Lan 2020Chinese Medical Journal2020,,3:5
12Gardenia jasminoides attenuates hepatocellular injury and fibrosis in bile duct-ligated rats and human hepatic stellate cells显示文摘AIM:To investigate the anti-hepatofibrotic effects of Gardenia jasminoides in liver fibrosis.METHODS:Male Sprague-Dawley rats underwent common bile duct ligation(BDL) for 14 d and were treated with Gardenia jasminoides by gavage.The ef-fects of Gardenia jasminoides on liver fibrosis and the detailed molecular mechanisms were also assessed in human hepatic stellate cells(LX-2) in vitro.RESULTS:Treatment with Gardenia jasminoides decreased serum alanine aminotransferase(BDL vs BDL + 100 mg/kg Gardenia jasminoides,146.6 ± 15 U/L vs 77 ± 6.5 U/L,P = 0.0007) and aspartate aminotransferase(BDL vs BDL + 100 mg/kg Gardenia jasminoides,188 ± 35.2 U/L vs 128 ± 19 U/L,P = 0.005) as well as hydroxyproline(BDL vs BDL + 100 mg/kg Gardenia jasminoides,438 ± 40.2 μg/g vs 228 ± 10.3 μg/g liver tissue,P = 0.004) after BDL.Furthermore,Gardenia jasminoides significantly reduced liver mRNA and/or protein expression of transforming growth factor β1(TGF-β1),collagen type?Ⅰ?(Col?Ⅰ) and α-smooth muscle actin(α-SMA).Gardenia jasminoides significantly suppressed the upregulation of TGF-β1,Col?Ⅰand α-SMA in LX-2 exposed to recombinant TGF-β1.Moreover,Gardenia jasminoides inhibited TGF-β1-induced Smad2 phosphorylation in LX-2 cells.CONCLUSION:Gardenia jasminoides exerts antifibrotic effects in the liver fibrosis and may represent a novel antifibrotic agent.Ying-Hua Chen Tian Lan Jing Li Chun-Hui Qiu Teng Wu Hong-Ju Gou Min-Qiang Lu 2012World Journal of Gastroenterology2012,18,48:5
13Microstructural Evolution and Mechanical Properties of Nb-Ti Microalloyed Pipeline Steel显示文摘The correlation between microstructures and mechanical properties of a Nb-Ti microalloyed pipeline steel was investigated. The results revealed that with decreasing the finish rolling temperature and the cooling stop temperature,the matrix microstructure was changed from quasi-polygonal ferrite to acicular ferrite,as a result of improvement of both strength and low temperature toughness. By means of electron backscattered diffraction observation,an effective acicular ferrite packet contained several low angle boundaries or subboundaries plates which made important contributions to improvement of strength. It was found that many fine quasi-polygonal ferrite grains with high angle boundaries as the toughening structure were introduced into the acicular ferrite matrix to refine effective grain size and improve the toughness.LAN Liang-yun QIU Chun-lin ZHAO De-wen GAO Xiu-hua 2011Journal of Iron and Steel Research(International)2011,18,2:5
14Study on the pathogenetic effect of salted pork from a high risk area of stomach cancer in China显示文摘StudyonthepathogeneticefectofsaltedporkfromahighriskareaofstomachcancerinChinaYUANYuan1,LINHuiZhi1,ZHANGYinChang1,WANGXuan...YUAN Yuan 1, LIN Hui Zhi 1, ZHANG Yin Chang 1, WANG Xuan Jie 2, WU Yie Qiu 1, GAO Hua 1, WANG Lan 1, LIU Yan Hou 3, LU Fang 3 and LOU Su Qing 3 1997World Journal of Gastroenterology1997,3,2:3
15Morphological Evolution of Fe-Rich Phases in the AlSi_9Cu_3Mg_(0.19)(Fe)Alloy with the Addition of Minor Mn and Cr显示文摘The morphological evolution of Fe-rich phases in the Alalloy has been investigated with various contents of Fe,Mn,and Cr.The results show that coarse Chinese script Fe-rich phases appear in the alloy with 0.6 wt%Fe combined with trace Mn,while the blocky Fe-rich phases appear combined with trace Cr.Under the coexistence of trace Mn and Cr,a large number of fine Chinese script Fe-rich phases could be visible in the low iron-bearing AlSi_9Cu_3-alloy(0.60 wt%).At high Fe level(1.30 wt%),numerous Fe-rich phases with hexagonal morphologies are observed with the trace Cr,while fish-bone and pentagonal morphologies of Fe-rich phases could be simultaneously observed with the addition of both Mn and Cr.The results reveal that the trace Mn and Cr promote the morphological evolution of Fe-rich phases.The morphology evolution mechanism of Fe-rich phases has been discussed by using the atom radius and electronegativity differences of Fe,Mn,and Cr.Zhi-Qiang Qiu Xiang-Chen Meng Qiu-Hong Yuan Xiao-Shu Zeng Xi-Xin Rao Yan Ding Lan Luo Yong Liu 2018Acta Metallurgica Sinica(English Letters)2018,31,6:3
16Extension Protocol for the Investigation on Nutrition Status and Clinical Outcome of Patients with Common Cancers in China(INSCOC)Study:2021 update显示文摘Background Malnutrition is common in patients with cancer,and this adversely affects the survival and quality of life of patients.Chinese Society for Nutritional Oncology issued a multi-center,large-scale,long-term follow-up prospective study,the Investigation on Nutrition Status and Clinical Outcome of Patients with Common Cancers in China(INSCOC study)since 2013.This is an extension to the previous 2013-2020 study protocol.This study still sought to:①address the prognostic impact of nutritional factors and quality of life on cancer patient survival;②describe the overall and cancer-specific incidence and/or distribution of malnutrition and different measurements of patient quality of life.Methods and study design This is an observational,multi-centered,hospital-based prospective cohort study.Data collection will be performed at baseline(within 48 hours after patient admission),during the hospital stay and 30 days after hospital admission.Follow-up will be conducted for 1-20 years after enrollment.The primary outcome will be the all-cause mortality/overall survival,and secondary outcomes will be the length of hospital stay and costs of hospitalization.Study factors will include demographic characteristics,tumor characteristics,information about chronic diseases,hematological measurements(e.g.,red blood cell count,total lymphocyte counts,hemoglobin,albumin,prealbumin,creatinine,C-reactive protein,IL-6),anthropometric measurements(e.g.,height,weight,arm circumference,arm muscle circumference,triceps skinfold thickness,and waist circumference),body composition parameters,PG-SGA scores,quality of life(as indicated by the QLQ-C30 questionnaire),muscle mass(as indicated by the calf circumference),muscle strength(as indicated by the handgrip strength),muscle function(as indicated by the six-meter walking speed test)and physical status assessments(as indicated by the Karnofsky Performance Status scores).This clinical study protocol was approved by local Ethics Committees of all the participating hospitals.Written informed consent is required for each subject included.Discussion This multi-center,large-scale,long-term follow up prospective study will help improve the diagnosis of malnutrition in cancer patients and identify the risk factors associated with adverse clinical outcomes.The anticipated results of this study will highlight the need for a truly scientific appraisal of nutrition therapy in Chinese oncology populations,and finally help treat the potentially reversible elements of malnutrition in cancer patients to improve their clinical outcomes in the future.Hong Xia Xu Chun Hua Song Liang Yu Yin Chang Wang Zhen Ming Fu Zeng Qing Guo Yuan Lin Ying Ying Shi Wen Hu Yi Ba Su Yi Li Zeng Ning Li Kun Hua Wang Jing Wu Ying He Jia Jun Yang Cong Hua Xie Fu Xiang Zhou Xin Xia Song Gong Yan Chen Wen Jun Ma Su Xia Luo Zi Hua Chen Zhi Kang Chen Ming Hua Cong Hu Ma Chun Ling Zhou Wei Wang Qi Luo Yong Mei Shi Yu Mei Qi Hai Ping Jiang Wen Xian Guan Jun Qiang Chen Xiang Hua Wu Jia Xin Chen Yu Fang Lan Zhou Yong Dong Feng Rong Shao Tan Tao Li Jun Wen Ou Qing Chuan Zhao Jian Xiong Wu Min Weng Qing Hua Yao Ya Yin Yu Quan Jun Lyu Hong Qiu Ming Liu Wei Li Han Ping Shi The Investigation on Nutrition Status and Clinical Outcome of Common Cancers(INSCOC)Group 2022Journal of Nutritional Oncology2022,7,2:3
17Synergistic effects of immunoregulation and osteoinduction of ds-block elements on titanium surface显示文摘Ds-block elements have been gaining increasing attention in the field of biomaterials modification,owing to their excellent biological properties,such as antibiosis,osteogenesis,etc.However,their function mechanisms are not well understood and conflicting conclusions were drawn by previous studies on this issue,which are mainly resulted from the inconsistent experimental conditions.In this work,three most widely used ds-block elements,copper,zinc,and silver were introduced on titanium substrate by plasma immersion ion implantation method to investigate the rule of ds-block elements in the immune responses.Results showed that the implanted samples could decrease the inflammatory responses compared with Ti sample.The trend of anti-inflammatory effects of macrophages on samples was in correlation with cellular ROS levels,which was induced by the implanted biomaterials and positively correlated with the number of valence electrons of ds-block elements.The co-culture experiments of macrophages and bone marrow mesenchymal stem cells showed that these two kinds of cells could enhance the anti-inflammation and osteogenesis of samples by the paracrine manner of PGE2.In general,in their steady states on titanium substrate(Cu2+,Zn2+,Ag),the ds-block elements with more valence electrons exhibit better anti-inflammatory and osteogenic effects.Moreover,molecular biology experiments indicate that the PGE2-related signaling pathway may contribute to the desired immunoregulation and osteoinduction capability of ds-block elements.These findings suggest a correlation between the number of valence electrons of ds-block elements and the relevant biological responses,which provides new insight into the selection of implanted ions and surface design of biomaterials.Lan Chen Donghui Wang Jiajun Qiu Xianming Zhang Xingdan Liu Yuqin Qiao Xuanyong Liu 2021Bioactive Materials2021,6,1:3
18Interaction between CI^- channels and CRAC-related Ca^(2+)signaling during T lymphocyte activation and proliferation显示文摘Aim:To test the hypothesis that Cl^- channel blockers affect T cell proliferationthrough Ca^(2+)-release-activated Ca^(2+)(CRAC)signaling and examine the effects ofthe combination of a CRAC channel blocker and a Cl^- channel blocker on con-canavalin A(ConA;5 mg/mL)-induced Ca^(2+) signaling,gene expression and cellu-lar proliferation in human peripheral T lymphocytes.Methods:[~3H]Thymidineincorporation,Fura-2 fluorescent probe,RNase protection assay,and reversetranscription-polymerase chain reaction were used.Results:The Cl^- channelblocker 4,4'-diisothiocyanostilbene-2,2'-disulfonic acid(DIDS)inhibited ConA-induced Ca^(2+) influx,interleukin-2 mRNA expression and T lymphocyte prolifera-tion in a concentration-dependent manner,and also enhanced the inhibitory ef-fects of 1-{beta-[3-(4-methoxyphenyl)propoxyl]-4-methoxyphenethyl}-1H-imida-zole(SK&F96365)on the above key events during T cell activation.A combina-tion of DIDS(1 μmol/L)and SK&F96365(1 μmol/L)significantly diminished ConA-induced ClC-3 mRNA expression by 64%,whereas DIDS(1 μmol/L)or SK&F96365(1 μmol/L)alone decreased ConA-induced ClC-3 mRNA expression by only 16%and 9%,respectively.Conclusion:These results suggest that there is an interac-tion between CRAC-mediated Ca^(2+) signaling and DIDS-sensitive Cl^- channelsduring ConA-induced T cell activation and proliferation.Moreover,the DIDS-sensitive Cl^- channels may be related to the C1C-3 Cl^- channels.Guan-lei WANG Yan QIAN Qin-ying QIU Xiu-jian LAN Hua HE Yong-yuan GUAN 2006Acta Pharmacologica Sinica2006,27,4:3
19A flexible thermoelectric device based on a Bi_(2)Te_(3)-carbon nanotube hybrid显示文摘Thermoelectric(TE)materials and devices have attracted great attention due to their ability to convert waste heat to electrical power and active cooling.However,the conventional bulk TE materials are inorganic semiconductors with inherent brittleness and rigidity.They cannot closely contact curved heat sources and sinks,which limits their application in modern electronics.It remains a big challenge to fabricate high-performance TE materials and devices with good flexibility.Here,we report a flexible TE device comprised of a single wall carbon nanotube(SWCNT)network and(0001)-textured Bi_(2)Te_(3)nanocrystals prepared by a magnetron sputtering technique.The unique Bi_(2)Te_(3)-SWCNT hybrid structure has a TE figure of merit(ZT)value of^0.23 at^330 K.A prototype TE device made of this hybrid gives a maximum output power density of^0.93 m W cm^(-2)under a temperature difference of 25 K at ambient temperature and shows good flexibility under bending.Our results open up a new way to the development of flexible TEs and their application in self-powered portable devices.Ying Li Jixiang Qiao Yang Zhao Qing Lan Pengyan Mao Jianhang Qiu Kaiping Tai Chang Liu Huiming Cheng 2020Journal of Materials Science & Technology2020,58,23:3
20Narrowband time delay estimation based on correlation coefficient显示文摘The problems of time delay estimation of narrowband signals are presented.The disadvantages of the existing algorithms are analyzed,and a new narrowband time delay estimating algorithm based on correlation coefficient is proposed.The original time delay information is transfered into the delay between the autocorrelation and cross-correlation function,and the precise estimating result by wave-comparison is given.The algorithm proposed here is also compared with other algorithms and its advantages over other algorithms are proved.The theoretical analysis and simulation show the effectiveness of the proposed algorithm.Gao Yang Qiu Tianshuang Sha Lan Zhao Yanbin 2009Journal of Systems Engineering and Electronics2009,20,5:3
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