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| 1 | The Association of Maternal Body Composition and Dietary Intake with the Risk of Gestational Diabetes Mellitus during the Second Trimester in a Cohort of Chinese Pregnant Women显示文摘Objective To investigate the association of maternal body composition and dietary intake with the risk of gestational diabetes mellitus(GDM). Methods A total 154 GDM subjects and 981 controls were enrolled in a prospective cohort study in 11 hospitals from May 20, 2012 to December 31, 2013. Bioelectrical impedance analysis and dietary surveys were used to determine body composition and to evaluate the intake of nutrients in subjects at 21-24 weeks' gestation(WG). Logistic regression analysis was applied to explore the relationships of maternal body composition and dietary intake with the risk of GDM morbidity. Results Age, pre-pregnant body weight(BW), and body mass index(BMI) were associated with increased risk of GDM. Fat mass(FM), fat mass percentage(FMP), extracellular water(ECW), BMI, BW, energy, protein, fat, and carbohydrates at 21-24 WG were associated with an increased risk of GDM. In contrast, fat free mass(FFM), muscular mass(MM), and intracellular water(ICW) were associated with a decreased risk of GDM. Conclusion Maternal body composition and dietary intake during the second trimester of pregnancy were associated with the risk of GDM morbidity. | Xu Qing Gao Zhi Ying Li Li Ming Wang Lu Zhang Qian Teng Yue Zhao Xia Ge Sheng Jing Hong Jiang Yang Yong Tao Liu Xiao Jun Lyu Chun Jian Mao Lun Yu Xiao Ming Liu Ying Hua Kong Ai Jing Yang Xue Yan Liu Zhao Zhang Yong Wang Jin Zhang Xin Sheng Xue Chang Yong Lu Yan Ping | 2016 | Biomedical and Environmental Sciences2016,29,1: | 29 |
| 2 | Induction of apoptosis of human gastric carcinoma SGC-7901 cell line by 5,7-dihydroxy-8-nitrochrysin in vitro显示文摘AIM: To investigate the effect of 5, 7-dihydroxy-8- nitrochrysin (NOChR) on apoptosis of human gastric carcinoma SGC-7901 cell line. METHODS: SGC-7901 cells were cultured in vitro and the inhibitory effect of NOChR on proliferation of SGC-7901 cells was measured by using an MTT assay. NOChR-induced apoptosis rate of SGC-7901 cells was detected using flow cytometry (FCM) with PI staining. DNA ladder bands were observed by DNA agarose gel electrophoresis. The influence of NOChR on the proxisome proliferator-activated receptor-γ (PPARγ), Bcl-2 and Bax protein expression of SGC-7901 cells was analyzed by Western blot. RESULTS: MTT assay showed that NOChR markedly inhibited proliferation of SGC-7901 cells in a dose- dependent manner, and when IC50 was 4.14 μmol/L, the potency of NOChR was 10 times than that of lead compound, chrysin (ChR, IC50 was 40.56 μmol/L), and was similar to 5-fluorouracil (5-FU, IC50 was 4.51 μmol/L). FCM with propidium iodide (PI) staining demonstrated that the apoptosis rates of SGC-7901 cells treated with 1.25, 5.00 and 20.00 μmol/L NOChR for 48 h were 9.8% ± 0.2%, 36.8% ± 1.9% and 45.5% ± 3.5%, respectively, and were significantly higher when treated with 5.00 and 20.00 μmol/L NOChR than that with 20.00 μmol/L ChR (12.9% ± 1.5%). DNA agarose gel electrophoresis showed that treatment of SGC-7901 cells with 20.00 μmol/L NOChR for 48 h resulted in typical DNA ladder bands of DNA of SGC-7901 cells, which could be eliminated by treating with 10.00 μmol/L GW9662, a blocker of PPARγ. Western blot analysis revealed that after 24 h of treatment with 20.00 μmol/L NOChR, PPARgamma and Bax protein expression of SGC-7901 cells increased but Bcl-2 expression decreased; however, pre-incubation with 10.00 μmol/L GW9662 could efficiently antagonize and weaken the regulatory effect of 20.00 μmol/L NOChR on Bax and Bcl-2 protein expression of SGC-7901 cells. CONCLUSION: NOChR induces apoptosis of SGC-7901 cell lines by activating PPARγ and decreasing ratio of Bcl-2 to Bax. | Xiao-Hong Ai Xing Zheng Xiao-Qing Tang Li Sun Yang-Qin Zhang Yong Qin Hua-Qing Liu Hong Xia Jian-Guo Cao | 2007 | World Journal of Gastroenterology2007,13,28: | 22 |
| 3 | Surveillance-response systems: the key to elimination of tropical diseases显示文摘Tropical diseases remain a major cause of morbidity and mortality in developing countries.Although combined health efforts brought about significant improvements over the past 20 years,communities in resource-constrained settings lack the means of strengthening their environment in directions that would provide less favourable conditions for pathogens.Still,the impact of infectious diseases is declining worldwide along with progress made regarding responses to basic health problems and improving health services delivery to the most vulnerable populations.The London Declaration on Neglected Tropical Diseases(NTDs),initiated by the World Health Organization’s NTD roadmap,set out the path towards control and eventual elimination of several tropical diseases by 2020,providing an impetus for local and regional disease elimination programmes.Tropical diseases are often patchy and erratic,and there are differing priorities in resources-limited and endemic countries at various levels of their public health systems.In order to identify and prioritize strategic research on elimination of tropical diseases,the‘First Forum on Surveillance-Response System Leading to Tropical Diseases Elimination’was convened in Shanghai in June 2012.Current strategies and the NTD roadmap were reviewed,followed by discussions on how to identify and critically examine prevailing challenges and opportunities,including inter-sectoral collaboration and approaches for elimination of several infectious,tropical diseases.A priority research agenda within a‘One Health-One World’frame of global health was developed,including(i)the establishment of a platform for resource-sharing and effective surveillance-response systems for Asia Pacific and Africa with an initial focus on elimination of lymphatic filariasis,malaria and schistosomiasis;(ii)development of new strategies,tools and approaches,such as improved diagnostics and antimalarial therapies;(iii)rigorous validation of surveillance-response systems;and(iv)designing pilot studies to transfer Chinese experiences of successful surveillance-response systems to endemic countries with limited resources. | Ernest Tambo Lin Ai Xia Zhou Jun-Hu Chen Wei Hu Robert Bergquist Jia-Gang Guo Jürg Utzinger Marcel Tanner Xiao-Nong Zhou | 2014 | Infectious Diseases of Poverty2014,3,1: | 14 |
| 4 | Long-term results of paclitaxel plus cisplatin with concurrent radiotherapy for loco-regional esophageal squamous cell carcinoma显示文摘AIM To evaluate the long-term effectiveness and late toxicities of paclitaxel(PTX) plus cisplatin(DDP) with concurrent radiotherapy for locally advanced esophageal squamous cancer.METHODS Between 2008 and 2011, 76 patients were enrolled in a phase Ⅱ study on the treatment of loco-regionally advanced esophageal cancer with radiotherapy(68.4 Gy/44 fractions or 61.2 Gy/34 fractions) combined with 4-cycle chemotherapy consisting of DDP(25 mg/m^2 per day for 3 d) and PTX(175 mg/m^2 for 3 h). The primary endpoints were overall survival and progression-free survival, and the secondary endpoints were toxicity and the treatment failure pattern.RESULTS A total of 76 patients were enrolled in this study, of whom 63.2% finished the whole regimen. The 5-year survival rates for the per-protocol population and intent-to-treat population were 25.4% and 26.4%, respectively, and the median survival rates were 23.7 mo and 28.5 mo, respectively. Grade 3 or 4 late toxicity was observed in only one patient(heart failure). In log-rank analysis, the pretreatment stage(stage Ⅱ + Ⅲ: 36.1 mo vs stage Ⅳ: 14.9 mo) and the completed cycle(1-3 cycles: 16.1 mo vs 4 cycles: 35.5 mo) were significant prognostic factors(P = 0.037 < 0.05 and P = 0.013 < 0.05).CONCLUSION Radiotherapy combined with chemotherapy consisting of PTX and DDP is a safe and effective definitive treatment for loco-regionally advanced esophageal squamous cancer. | Han-Ting Zhu Da-Shan Ai Hua-Rong Tang Harun Badakhshi Jian-Hong Fan Jia-Ying Deng Jun-Hua Zhang Yun Chen Zhen Zhang Yi Xia Xiao-Mao Guo Guo-Liang Jiang Kuai-Le Zhao | 2017 | World Journal of Gastroenterology2017,23,3: | 14 |
| 5 | Post-marketing Re-evaluation of Tongxiening Granules (痛泻宁颗粒) in Treatment of Diarrhea-Predominant Irritable Bowel Syndrome:A Multi-center,Randomized,Double-Blind,Double-Dummy and Positive Control Trial显示文摘Objective: To evaluate the efficacy and safety of Tongxiening Granules(痛泻宁颗粒, TXNG) in the treatment of irritable bowel syndrome with predominant diarrhea(IBS-D). Methods: A randomized, double-blind, double-dummy, and positive paral el control ed clinical trial was conducted from October 2014 to March 2016. Total y 342 patients from 13 clinical centers were enrolled and randomly assigned(at the ratio of 1:1) to a treatment group(171 cases) and a control group(171 cases) by a random coding table. The patients in the treatment group were administered oral y with TXNG(5 g per time) combined with pinaverium bromide Tablet simulator(50 mg per time), 3 times per day. The patients in the control group were given TXNG simulator(5 g per time) combined with pinaverium bromide Tablets(50 mg per time), 3 times per day. The treatment course lasted for 6 weeks. The improvement of Irritable Bowel Syndrome Symptom Severity Score(IBS-SSS) was used to evaluate the primary outcome. Secondary outcomes included adequate relief(AR) rate, Irritable Bowel Syndrome-Quality of Life Questionnaire(IBS-QOL), Hamilton Anxiety Scale(HAMA), Hamilton Depression Scale(HAMD), and the recurrence rate at fol ow-ups. Safety indices including the adverse events(AEs) and related laboratory tests were evaluated. Results: Primary outcome: IBS-SSS at baseline, weeks 2, 4, 6 showed no statistical significance in both full analysis set(FAS) and per protocol set(PPS, P>0.05). After 6 weeks of treatment, the total effective rate of IBS-SSS scores in the treatment group(147/171, 86.0%) was higher than the control group(143/171, 83.6%) by FAS(P>0.05). In regard to secondary outcomes, after 6-week treatment, there was no significant difference in AR rate, total score of IBS-QOL, improvement of HAMD and HAMA total scores between the two groups(P>0.05). The recurrence rate at 8-week fol ow-up was 12.35%(10/18) in treatment group and 15.79%(12/76) in control group, respectivery(P>0.05). A total of 21 AEs occurred in 15 cases, of which 11 occurred in 8 cases in the treatment group and 10 AEs in 7 cases in the control group. The incidence of AEs had no statistical significance between the two goups(P>0.05). Conclusion: Tongxiening Granules could relieve the symptoms of patients with IBS-D and the treatment effect was comparable to pinaverium bromide.(No. ChiCTR-IPR-15006415) | TANG Xu-dong ZHANG Sheng-sheng HOU Xiao-hua LI Zhen-hua CHEN Su-ning FENG Pei-min YANG Xiao-nan LI Hui-zhen WU Jie-qiong XIA Pei-jun YANG Xiao-jun ZHOU Heng-jun WANG Hai-yan AI Yao-wei LI Kang | 2019 | Chinese Journal of Integrative Medicine2019,25,12: | 7 |
| 6 | Antibiotic resistance and molecular characterization of diarrheagenic Escherichia coli and non-typhoidal Salmonella strains isolated from infections in Southwest China显示文摘Background:Bacterial diarrhea is one of the most common causes for medical consultations,mortality and morbidity in the world.Diarrheagenic Escherichia coli(DEC)and non-typhoidal Salmonella(NTS)are major intestinal pathogens in developing countries,and the indiscriminate use of antibiotics has greatly contributed to resistant strains.Hence,the aim of the present study is to identify the antimicrobial resistance patterns and the molecular characteristics of DEC and NTS in southwest,China.Methods:1121 diarrheal patients and 319 non-diarrheal subjects across all age groups were recruited from four sentinel hospitals from June 2014 to July 2015 in Kunming City,Yunnan Province.Each stool specimen was collected to detect DEC and NTS with standard microbiological and molecular methods.Antimicrobial resistance testing was performed with the Kirby-Bauer disk diffusion method,and the standards for antimicrobial susceptibility testing complied with the Clinical and Laboratory Standards Institute(CLSI).Molecular characterization of strains was carried out using pulsed-field gel electrophoresis(PFGE).A structured questionnaire was used to record basic epidemiological data(e.g.sex,age,residence,season,etc.).Data were analyzed using Chi-square or Fisher’s exact test.Results:DEC was detected in 127(11.33%)diarrhea cases and 9(2.82%)non-diarrheal cases(χ^(2)=20.69,P<0.001,OR=4.36,95%CI:2.19-8.65),and the prevalence of NTS isolated from diarrhea cases was higher than that of non-diarrheal cases across all age groups(n=42,3.75%,n=1,0.31%,χ^(2)=10.10,P=0.002,OR=12.38,95%CI:1.70-90.29).The rates of resistance to ten antibiotics of DEC and NTS showed significant differences(χ^(2)=386.77,P<0.001;χ^(2)=191.16,P<0.001).The rates of resistance to Amoxicillin and Clavulafiate(AMC),Cephalothin(CEP),Gentamicin(GEN)and Sulfamethoxazole-Trimethoprim(SXT)of DEC isolated from diarrhea cases were higher than those of NTS isolated from diarrhea patients(37.01%vs 14.29%,χ^(2)=7.57,P=0.006;29.92%vs 11.90%,χ^(2)=5.40,P=0.02;37.01%vs 11.90%,χ^(2)=5.80,P=0.016;62.20%vs 26.19%,χ^(2)=16.44,P<0.001;respectively).Ciprofloxacin(CIP)was the most sensitive antibiotic for DEC and NTS strains isolated from diarrhea cases.Resistance rates of DEC isolates from cases and controls to more than three kinds antimicrobials(multidrug resistance,MDR)showed no significant differences(81.10%vs 88.89%,P=0.33).Pulsotype patterns of DEC strains were highly diverse;however,the pulsotype pattern of NTS strains was closely related to the serotype.The pattern of S.enteritidis was highly similar,but the S.enterica Typhimurium strain was discrete.Conclusions:Antibiotic resistance of Enterobacteriaceae is of great concern.The societal effects of antibiotic use justify strict monitoring to combat increases in antimicrobial resistance.Molecular epidemiology and systematic epidemiological investigation can provide accurate evidence for tracking the infection source. | Shun-Xian Zhang Yong-Ming Zhou Li-Guang Tian Jia-Xu Chen Rita Tinoco-Torres Emmanuel Serrano Shi-Zhu Li Shao-Hong Chen Lin Ai Jun-Hu Chen Shang Xia Yan Lu Shan Lv Xue-Jiao Teng Wen Xu Wen-Peng Gu Si-Tang Gong Xiao-Nong Zhou Lan-Lan Geng Wei Hu | 2018 | Infectious Diseases of Poverty2018,7,1: | 7 |
| 7 | A positive-temperature-coefficient electrode with thermal protection mechanism for rechargeable lithium batteries显示文摘A new positive-temperature-coefficient(PTC) material was prepared simply by blending of conductive Super P carbon black(CB) with insulating poly(methyl methacrylate)(PMMA) polymer matrix,which was empolyed as a coating layer on the aluminium foil substrate to fabricate a sandwiched Al/PTC/LiCoO2 cathode.The experimental results from cyclic voltammetry,charge-discharge measurements and impedance spectroscopy demonstrated that the PTC electrode has a normal electrochemical performance at ambient temperature,but shows an enormous increase in the resistance at the temperature range of 80?120℃.This PTC behavior greatly restrains the reaction current passing through the electrode at elevated temperatures,capable of acting as a self-actuating safety mechanism to prevent the battery from thermal runaway. | XIA Lan ZHU LiMin ZHANG HaiYan AI XinPing | 2012 | Chinese Science Bulletin2012,57,32: | 7 |
| 8 | Identification of AtENT3 as the main transporter for uridine uptake in Arabidopsis roots显示文摘当在酵母细胞生产了,差别在 Arabidopsis 器官被表示时,以前的研究证明了 Arabidopsis equilibrative nucleoside 运输 ers (AtENTs ) 拥有运输活动。此处,我们在 nucleoside 运输活动和 AtENT 成员的 transcriptional 模式报导进一步的分析。AtENTs 3 的 recombinant 蛋白质, 6,和 7,然而并非那些 AtENTs 1, 2, 4,和 8,被发现与高亲密关系搬运 thymidine。与以前的建议相反,那 AtENT1 不能搬运 uridine,这个工作证明 recombinant AtENT1 是 uridine 的 pH 依赖、高亲密关系的 transporter。当在 MS 盘子上成长时, AtENT3 猛烈植物比野类型的植物和 AtENT1 或 AtENT6 的猛烈植物对细胞毒素的 uridine 类似物 5-fluorouridine 更容忍。与这观察一致, AtENT3 猛烈的线展出了一个显著地减少的能力收起[(3 ) H ] 经由根的 uridine 什么时候与有变异的 AtENT1 或 AtENT6 的野类型的植物和植物相比。这显示那 AtENT3,然而并非 AtENTs 1 并且 6,是为在 Arabidopsis 根的 uridine 举起的主要 transporter。AtENTs 1 的抄写, 3, 4, 6, 7,和 8 在叶开发和老朽期间以一种复杂方式被调整。相反,六个 AtENT 成员并列地在种子萌芽期间被劝诱。这个工作为未来研究在 recombinant AtENT 蛋白质和新线索的运输性质上提供新信息在里面 vivo 运输活动和在 Arabidopsis 工厂的不同 ENT 蛋白质的生理的功能。 | Kun Ling Chen Min Xin Xu Guang Yong Li Hui Liang Zong Liang Xia Xin Liu Ji Shu Zhang Ai Min Zhang Dao Wen Wang | 2006 | Cell Research2006,16,4: | 7 |
| 9 | Enabling an intrinsically safe and high-energy-density 4.5 V-class Li-ion battery with nonflammable electrolyte显示文摘Developing nonflammable electrolyte with a wide electrochemical window has become an urgent demand for high-energy-density and high-safe lithium-ion batteries(LIBs).Herein,a fluorinated nonflammable phosphate electrolyte is developed to construct a safe 4.5 V-class LIB(Si-SiC-C/0.35Li2MnO3-0.65LiNi0.5Mn0.5O2).The proposed fluorinated phosphate electrolyte,0.8 M LiPF6/tris(2,2,2-trifluoroethyl)phosphate(TFEP)+5 vol%fluoroethylene carbonate(FEC)+5 vol%vinylene carbonate(VC),is not only completely nonflammable but also exhibits excellent oxidative/reductive stability on 0.35Li2MnO30.65LiNi0.5Mn0.5O2 cathode and Si-SiC-C anode.The in situ differential electrochemical mass spectrometry and X-ray photoelectron spectroscopy proved that TFEP-based electrolyte does not decompose into gases but forms a high-quality electrode-electrolyte interface on cathode surface at high working potential.The 4.5 V-class LIBs using 0.8 M LiPF6 TFEP-based nonflammable electrolyte shed some light on potential application for high-safe and low-cost larger-scale energy storage. | Ziqi Zeng Xingwei Liu Xiaoyu Jiang Zhenjie Liu Zhangquan Peng Xiangming Feng Weihua Chen Dingguo Xia Xinping Ai Hanxi Yang Yuliang Cao | 2020 | InfoMat2020,2,5: | 6 |
| 10 | Multifunctional dextran micelles as drug delivery carriers and magnetic resonance imaging probes显示文摘Multifunctional nanoparticles combining diagnostic and therapeutic agents into a single platform make cancer theranostics possible and have attracted wide interests in the field. In this study, a multifunctional nanocomposite based on dextran and superparamagnetic iron oxide nanoparticles(SPIO) was prepared for drug delivery and magnetic resonance imaging(MRI). Amphiphilic dextran was synthesized by grafting stearyl acid onto the carbohydrate backbone, and micelle was formed by the resulted amphiphilic dextran with low critical micelle concentration at 1.8 mg L-1. Doxorubicin(DOX) and a cluster of the manganese-doped iron oxide nanoparticles(Mn-SPIO)nanocrystals were then coencapsulated successfully inside the core of dextran micelles, resulting in nanocomposites with diameter at about 100 nm. Cell culture experiments demonstrated the potential of these Mn-SPIO/DOX nanocomposites as an effective multifunctional nanoplatform for the delivery of anticancer drug DOX with a loading content(DLC) of 16 %. Confocal laser scanning microscopyreveals that the Mn-SPIO/DOX had excellent internalization ability against MCF-7/Adr cells after 2-h labeling compared with free DOXáHCl. Under a 3.0-T MRI scanner, Mn-SPIO/DOX nanocomposite-labeled cells in gelatin phantom show much darker images than the control. Their transverse relaxation(T2) rate is also significantly higher than that of the control cells(33.9 versus 2.3 s-1). Our result offers an effective strategy to treat MCF-7/Adr at optimized low dosages with imaging capability. | Bingbing Lin Hongying Su Rongrong Jin Danyang Li Changqiang Wu Xin Jiang Chunchao Xia Qiyong Gong Bin Song Hua Ai | 2015 | Science Bulletin2015,60,14: | 6 |
| 11 | Cenozoic Evolution of Sediments and Climate Change and Response to Tectonic Uplift of the Northeastern Tibetan Plateau显示文摘Through a comprehensive study of magnetostratigraphy and sedimentology of several basins in the northeastern Tibetan Plateau, we reveal that the study area mainly experienced six tectonic uplift stages at approximately 52 Ma, 34–30 Ma, 24–20 Ma, 16–12 Ma, 8–6 Ma, and 3.6–2.6 Ma. Comprehensive analyses of pollen assemblages from the Qaidam, Linxia, Xining, and West Jiuquan Basins show that the northeastern Tibetan Plateau has undergone six major changes in vegetation types and climate: 50–40 Ma for the warm-humid forest vegetation, 40–23 Ma for the warm-arid and temperate-arid forest steppe vegetation, 23–18.6 Ma for the warm-humid and temperatehumid forest vegetation, 18.6–8.5 Ma for the warm-humid and cool-humid forest steppe vegetation, 8.6–5 Ma for the temperate sub-humid savanna steppe vegetation, and 5–1.8 Ma for the cold-arid steppe vegetation. Comprehensive comparisons of tectonic uplift events inferred from sedimentary records, climatic changes inferred from pollen, and global climate changes show that in the northeastern Tibetan Plateau the climate in the Paleogene at low altitude was mainly controlled by the global climate change, while that in the Neogene interval with high altitude landscapes of mountains and basins is more controlled by altitude and morphology. | LIANG Xia JI Junliang LU Jingfang KE Xue AI Keke XU Yadong SONG Bowen | 2014 | Acta Geologica Sinica(English Edition)2014,88,3: | 5 |
| 12 | Amphiphilic dextran/magnetite nanocomposites as magnetic resonance imaging probes显示文摘Superparamagnetic iron oxide (SPIO) nanoparticles are effective contrast agents for enhancement of magnetic resonance imaging at the tissue, cellular or even molecular levels. High quality SPIO nanoparticles can be synthesized in the organic phase but need to be transferred into water before any biomedical applications. In this study, amphiphilic poly(ε-caprolactone) grafted dextran (Dex-g-PCL) was used as carriers for particle encapsulation and stabilization in the aqueous phase. Multiple SPIO nanoparticles were self-assembled together with the help of Dex-g-PCL during phase transfer from chloroform to water, and diameters of Dex-g-PCL/SPIO nanocomposites were (64 ± 22) nm through dynamic light scattering measurement. These nanocomposites were superparamagnetic at 300 K with saturated magnetization of 88 emu/g Fe. In the magnetic field of 1.5 T, Dex-g-PCL/SPIO nanocomposites had a T2 relaxivity of 363 Fe mL·mol-1·s-1. This unique nanocomposite brought significant mouse liver contrast with signal intensity changes of -60% at 5 min after intravenous administration. However, uptake of Dex-g-PCL/SPIO nanocomposites in liver reticuloendothelial cells (Kupffer cells) did not immediately happen at shorter time points (<4 h) as verified by histology studies, and it was evident that more iron staining would be located in Kupffer cells 24 h after contrast agent administration. After 24 h and 10 d, the signal intensities (SI) gradually recovered, and SI changes were -44% and -31%, respectively. From our observation, the time window for enhanced-MRI could last at least 12 days and totally recovered after 16 days. This novel sensitive MRI contrast agent may find potential applications in discovering small liver lesions such as early tumor diagnosis. | WANG QiaoYing SU HongYing XIA ChunChao SUN JiaYu LIU Chen WANG ZhiYong GONG QiYong SONG Bin GAO FaBao AI Hua GU ZhongWei | 2009 | Chinese Science Bulletin2009,54,17: | 5 |
| 13 | Effect of artificially accelerated aging on the vigor of Metasequoia glyptostroboides seeds显示文摘Metasequoia glyptostroboides is an endangered relict plant native to China that has been widely introduced into many countries and areas around the world. However,its seeds germinate at a very low percentage. Consequently,population regeneration by seed is low under natural conditions, which probably contributes to the endangered status of this plant species. The present study aimed to describe the aging mechanism of M. glyptostroboides seeds. Our objective was to elucidate causes of the low germination rate in an effort to enhance potential for conservation of the species. We used germination tests,relative electrical conductivity and malondialdehyde content determination, ultrastructural observation of embryo cells, and analysis of superoxide dismutase, catalase,ascorbate peroxidase, and dehydroascorbate reductase activities during accelerated aging treatment. We found that M. glyptostroboides seeds have a low level of vigorand poor ability to maintain vigor, which is probably associated with the inefficiency of its enzymatic antioxidative system. | Huan Liu Yanfang Zhu Xia Liu Yu Jiang Shiming Deng Xunru Ai Zhijun Deng | 2020 | Journal of Forestry Research2020,31,3: | 5 |
| 14 | CZ-7, a new derivative of Claulansine F, ameliorates 2V0-induced vascular dementia in rats through a Nrf2-mediated antioxidant responses显示文摘Vascular dementia (VD) results from accumulated damage in the vascular system, which is characterized by progressive impairments in memory and cognition and is second only to Alzheimer’s disease (AD) in prevalence among all types of dementia. In contrast to AD, there is no FDA-approved treatment for VD owing to its multiple etiologies. In this study, we investigated whether CZ-7, a new derivative of Claulansine F (Clau F) with verified neuroprotective activity in vitro, could ameliorate the cognitive impairment of rats with permanent occlusion of bilateral common carotid arteries (2VO) and its potential mechanisms of action. The 2VO rats were orally administered CZ-7 (10, 20, 40?mg/kg) from day 27 to day 53 post-surgery. Morris water maze tests conducted at day 48–51 revealed that CZ-7 administration significantly reduced the escape latency in 2VO rats. After the rats were sacrificed on day 53, morphological studies using Nissl and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining showed that administration of CZ-7 markedly attenuated the pathological changes in CA1–CA3 area of the hippocampus, including neuronal cell loss, nuclear shrinkage, and dark staining of neurons, and significantly decreased the chronic cerebral hypoperfusion-induced cell loss. Klüver–Barrera staining study revealed that CZ-7 administration significantly improved the white matter lesions. 8-OHdG and reactive oxygen species (ROS) immunofluorescent analyses showed that CZ-7 administration significantly decreased oxidative stress in CA1–CA3 area of the hippocampus. Finally, we found that the CZ-7-improved oxidative stress might be mediated via the Nrf2 pathway, evidenced by the double immunofluorescent staining of Nrf2 and the elevation of expression levels of oxidative stress proteins HO-1 and NQO1. In conclusion, CZ-7 has therapeutic potential for VD by alleviating oxidative stress injury through Nrf2-mediated antioxidant responses. | Dan-dan Liu Xia Yuan Shi-feng Chu Chen Chen Qian Ren Piao Luo Mei-yu Lin Sha-sha Wang Tian-bi Zhu Qi-di Ai Ying-da Zang Dong-ming Zhang Xin He Zhi-hua Huang Hong-shuo Sun Zhong-ping Feng Nai-hong Chen | 2019 | Acta Pharmacologica Sinica2019,40,4: | 4 |
| 15 | Estimating the Health and Economic Outcomes of the Prevention of Mother-to-child Transmission of HIV Using a Decision Tree Model显示文摘In 2016, there were 17.8 million (15.4-20.3 million) women living with HIV/AIDS across the world and the prevalence of reproductive desire among this group was 26%-49%[1]. If pregnant women living with HIV/AIDS are left untreated, the rates of HIV transmission from mother-to-child would range from 14% to 48%, depending on the presence and duration of breastfeeding[2]. | QU Shui Ling WANG Ai Ling PAN Xiao Ping WANG Qian DOU Li Xia ZHANG Tong | 2019 | Biomedical and Environmental Sciences2019,32,1: | 4 |
| 16 | Near-infrared fluorescent amphiphilic polycation wrapped magnetite nanoparticles as multimodality probes显示文摘Construction of multifunctional/multimodality nanoparticles for cancer diagnosis and therapy has become an attractive area of investigation. In this report, we designed a multimodality nanoprobe for cell labeling, and can be detectable by both magnetic resonance and near infrared (NIR) fluorescence imaging. Multiple hydrophobic superparamagnetic iron oxide (SPIO) nanocrystals are self-assembled into nanocomposites in water phase with the help of partially alkylated hyperbranched polycation, polyethylenimine (PEI), which already conjugated with the indocyanine dye Cy5.5 and can be used for cell imaging under NIR fluorescence imaging. The amphiphilic PEI/SPIO nanocomposites have a strong T 2 relaxivity. The iron uptake process in MCF-7/Adr displays a time dependent behavior. Confocal laser scanning microscopy reveals that the nanoprobes are internalized into the cytoplasm of MCF-7/Adr after 24 h labeling. Both MR and NIR fluorescence imaging showed strong image contrast against unlabeled cells. Under a clinical MRI scanner, labeled cells in gelatin phantom present much darker images than controlled ones. The T2 relaxation rate of the labeled cells is 98.2 s 1 , significantly higher than that of the control ones of 2.3 s 1 . This study provides an important alternative to label MCF-7/Adr at optimized low dosages with high efficiency, and may be useful to label other biologically important cells and track their behaviors in vivo. | WANG Dan SU HongYing LIU yanHong WU ChangQiang XIA ChunChao SUN JiaYu GAO FaBao GONG QiYong SONG Bin AI Hua | 2012 | Chinese Science Bulletin2012,57,31: | 4 |
| 17 | Towards a global One Health index: a potential assessment tool for One Health performance显示文摘Background:A One Health approach has been increasingly mainstreamed by the international community, as it provides for holistic thinking in recognizing the close links and inter-dependence of the health of humans, animals and the environment. However, the dearth of real-world evidence has hampered application of a One Health approach in shaping policies and practice. This study proposes the development of a potential evaluation tool for One Health performance, in order to contribute to the scientific measurement of One Health approach and the identification of gaps where One Health capacity building is most urgently needed.Methods:We describe five steps towards a global One Health index (GOHI), including (i) framework formulation;(ii) indicator selection;(iii) database building;(iv) weight determination;and (v) GOHI scores calculation. A cell-like framework for GOHI is proposed, which comprises an external drivers index (EDI), an intrinsic drivers index (IDI) and a core drivers index (CDI). We construct the indicator scheme for GOHI based on this framework after multiple rounds of panel discussions with our expert advisory committee. A fuzzy analytical hierarchy process is adopted to determine the weights for each of the indicators.Results:The weighted indicator scheme of GOHI comprises three first-level indicators, 13 second-level indicators, and 57 third-level indicators. According to the pilot analysis based on the data from more than 200 countries/territories the GOHI scores overall are far from ideal (the highest score of 65.0 out of a maximum score of 100), and we found considerable variations among different countries/territories (31.8–65.0). The results from the pilot analysis are consistent with the results from a literature review, which suggests that a GOHI as a potential tool for the assessment of One Health performance might be feasible.Conclusions:GOHI—subject to rigorous validation—would represent the world’s first evaluation tool that constructs the conceptual framework from a holistic perspective of One Health. Future application of GOHI might promote a common understanding of a strong One Health approach and provide reference for promoting effective measures to strengthen One Health capacity building. With further adaptations under various scenarios, GOHI, along with its technical protocols and databases, will be updated regularly to address current technical limitations, and capture new knowledge. | Xiao-Xi Zhang Jing-Shu Liu Le-Fei Han Shang Xia Shi-Zhu Li Odel YLi Kokouvi Kassegne Min Li Kun Yin Qin-Qin Hu Le-Shan Xiu Yong-Zhang Zhu Liang-Yu Huang Xiang-Cheng Wang Yi Zhang Han-Qing Zhao Jing-Xian Yin Tian-Ge Jiang Qin Li Si-Wei Fei Si-Yu Gu Fu-Min Chen Nan Zhou Zi-Le Cheng Yi Xie Hui-Min Li Jin Chen Zhao-Yu Guo Jia-Xin Feng Lin Ai Jing-Bo Xue Qian Ye Liz Grant Jun-Xia Song Geoff Simm Jürg Utzinger Xiao-Kui Guo Xiao-Nong Zhou | 2022 | Infectious Diseases of Poverty2022,11,3: | 3 |
| 18 | Synthesis,spectroscopic and electrochemical property of an unsymmetrical porphyrin and its Zn compound显示文摘在这篇文章,新 5-(p-maleicaminophenyl )-10,15,20-triphenylporphyrin (H2P ) 和相对的锌化合物(ZnP ) 借助于元素的分析,紫外鈥搗i s,红外, MS 和 1H NMR 光谱学被综合并且描绘。而且,我们调查了这些混合物的荧光光谱学。混合物的氧化和减小性质被周期的 voltammetry 学习,氧化鈥搑e duction 潜力被获得。 | Chang Fu Zhuang Yu Jing Zhang Ai Qing Xia Wen Hui Lian Yun Fang Wang Ping Zhang Tong Shun Shi | 2010 | Chinese Chemical Letters2010,21,7: | 3 |
| 19 | High performance TiP_2O_7 nanoporous microsphere as anode material for aqueous lithium-ion batteries显示文摘This work developed a facile way to mass-produce a carbon-coated TiP_2O_7 nanoporous microsphere(TPO-NMS) as anode material for aqueous lithium-ion batteries via solid-phase synthesis combined with spray drying method. TiP_2O_7 shows great prospect as anode for aqueous rechargeable lithium-ion batteries(ALIBs) in view of its appropriate intercalation potential of-0.6 V(vs. SCE) before hydrogen evolution in aqueous electrolytes. The resulting sample presents the morphology of secondary microspheres(ca. 20 μm) aggregated by carbon-coated primary nanoparticles(100 nm), in which the primary nanoparticles with uniform carbon coating and sophisticated pore structure greatly improve its electrochemical performance. Consequently, TPONMS delivers a reversible capacity of 90 mA h/g at 0.1 A/g, and displays enhanced rate performance and good cycling stability with capacity retention of 90% after 500 cycles at 0.2 A/g. A full cell containing TPO-NMS anode and LiMn_2O_4 cathode delivers a specific energy density of 63 W h/kg calculated on the total mass of anode and cathode. It also shows good rate capacity with56% capacity maintained at 10 A/g rate(vs. 0.1 A/g), as well as long cycle life with the capacity retention of 82% after 1000 cycles at 0.5 A/g. | Yunping Wen Yao Liu Duan Bin Zhuo Wang Congxiao Wang Yuliang Cao Xinping Ai Yongyao Xia | 2019 | Science China Chemistry2019,62,1: | 3 |
| 20 | High-fidelity trajectory optimization for aeroassisted vehicles using variable order pseudospectral method显示文摘In this study,the problem of time-optimal reconnaissance trajectory design for the aeroassisted vehicle is considered.Different from most works reported previously,we explore the feasibility of applying a high-order aeroassisted vehicle dynamic model to plan the optimal flight trajectory such that the gap between the simulated model and the real system can be narrowed.A highly-constrained optimal control model containing six-degree-of-freedom vehicle dynamics is established.To solve the formulated high-order trajectory planning model,a pipelined optimization strategy is illustrated.This approach is based on the variable order Radau pseudospectral method,indicating that the mesh grid used for discretizing the continuous system experiences several adaption iterations.Utilization of such a strategy can potentially smooth the flight trajectory and improve the algorithm convergence ability.Numerical simulations are reported to demonstrate some key features of the optimized flight trajectory.A number of comparative studies are also provided to verify the effectiveness of the applied method as well as the high-order trajectory planning model. | Runqi CHAI Antonios TSOURDOS AI SAVVARIS Senchun CHAI Yuanqing XIA | 2021 | Chinese Journal of Aeronautics2021,34,1: | 3 |