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| 1 | The Sound Suppression Characteristics of Wing Feather of Owl (Bubo bubo)显示文摘 | Kun Chen Qingping Liu Genghua Liao Ying Yang Luquan Ren Hongxiu Yang Xin Chen | 2012 | Journal of Bionic Engineering2012,9,2: | 12 |
| 2 | Effects of grain size on phase transition behavior of nanocrystalline shape memory alloys显示文摘We report recent advances in the experimental and theoretical study of grain size(GS)effects on the thermal and mechanical properties of nanostructured NiTi polycrystalline shape memory alloy(SMA).It is shown that when GS<60 nm,the superelastic stress-strain hysteresis loop area(H)of the polycrystal decreases rapidly with GS and tends to vanish as GS approaches 10 nanometers.At the same time,the temperature dependence of the transition stress also decreases with GS and eventually approaches zero,leading to a wide superelastic temperature window and breakdown of the Clausius-Claperyon relationship.Rate dependence of the stress-strain responses is significantly reduced and the cyclic stability of the material is improved by the nanocrystallization.It is proposed that the emergence of such significant changes in the behavior of the material with GS reduction originate from the large increase in the area-to-volume ratios of the nanometer-thick interfaces(grain boundary and Austenite-Martensite(A-M)interface)in the polycrystal.In particular,with GS reduction,interfacial energy terms will gradually become dominant over the bulk energy of the crystallite,eventually bring fundamental changes in the phase transition responses of the material.Modelling strategy leading to the establishment of quantitative relationships among GS,grain boundary,A-M interfaces and the macroscopic responses of the material are outlined. | SUN QingPing ASLAN Ahadi LI MingPeng CHEN MingXiang | 2014 | Science China(Technological Sciences)2014,57,4: | 9 |
| 3 | The gut microbial metabolite, 3,4-dihydroxyphenylpropionic acid, alleviates hepatic ischemia/reperfusion injury via mitigation of macrophage pro-inflammatory activity in mice显示文摘Hepatic ischemia/reperfusion injury(HIRI) is a serious complication that occurs following shock and/or liver surgery. Gut microbiota and their metabolites are key upstream modulators of development of liver injury. Herein, we investigated the potential contribution of gut microbes to HIRI.Ischemia/reperfusion surgery was performed to establish a murine model of HIRI. 16 S r RNA gene sequencing and metabolomics were used for microbial analysis. Transcriptomics and proteomics analysis were employed to study the host cell responses. Our results establish HIRI was significantly increased when surgery occurred in the evening(ZT12, 20:00) when compared with the morning(ZT0, 08:00);however, antibiotic pretreatment reduced this diurnal variation. The abundance of a microbial metabolite3,4-dihydroxyphenylpropionic acid was significantly higher in ZT0 when compared with ZT12 in the gut and this compound significantly protected mice against HIRI. Furthermore, 3,4-dihydroxyphenylpropionic acid suppressed the macrophage pro-inflammatory response in vivo and in vitro. This metabolite inhibits histone deacetylase activity by reducing its phosphorylation. Histone deacetylase inhibition suppressed macrophage pro-inflammatory activation and diminished the diurnal variation of HIRI. Our findings revealed a novel protective microbial metabolite against HIRI in mice. The potential underlying mechanism was at least in part, via 3,4-dihydroxyphenylpropionic acid-dependent immune regulation and histone deacetylase(HDAC) inhibition in macrophages. | Rui Li Li Xie Lei Li Xiaojiao Chen Tong Yao Yuanxin Tian Qingping Li Kai Wang Chenyang Huang Cui Li Yifan Li Hongwei Zhou Neil Kaplowitz Yong Jiang Peng Chen | 2022 | Acta Pharmaceutica Sinica B2022,12,1: | 8 |
| 4 | Transcriptomic analyses identify albino-associated genes of a novel albino tea germplasm ‘Huabai 1’显示文摘Albinism in shoots of tea plants is a common phenotypic expression which gives the tea infusion a pleasant umami taste.A novel natural albino mutant tea germplasm containing high amino acids content was found and named as‘Huabai 1’.‘Huabai 1’has white jade tender shoots under low temperature and turns green with increased temperature.In order to understand the molecular mechanism of color change in leaf of‘Huabai 1’,transcriptome analysis was performed to identify albino-associated differentially expressed genes(DEGs).A total of 483 DEGs were identified from white shoots of‘Huabai 1’compared to its green shoots.There were 15 DEGs identified to be involved in phenylpropanoid biosynthesis,which account for the majority of characterized DEGs.The metabolites related to phenylpropanoid biosynthesis revealed similar expression pattern of DEGs.Furthermore,metabolic pathways such as ubiquonone,tyrosine,and flavonoid biosynthesis associated with phenylpropanoid biosynthesis could also contribute to the color change in‘Huabai 1’tender shoots.Protein–protein interaction analysis revealed a hub protein NEDD8(CSA009575)which interacted with many regulated genes in spliceosome,nitrogen metabolism,phenylpropanoid biosynthesis,and other pathways.In conclusion,the findings in this study indicate that the color change of‘Huabai 1’tender shoots is a combined effect of phenylpropanoid biosynthesis pathway and other metabolic pathways including flavonoid biosynthesis in tea plants.Chlorophyll biosynthesis-related genes LHCII and SGR may also play some roles in color change of‘Huabai 1’. | Qingping Ma Huan Li Zhongwei Zou Emmanuel Arkorful Qianru Lv Qiongqiong Zhou Xuan Chen Kang Sun Xinghui Li | 2018 | Horticulture Research2018,5,1: | 7 |
| 5 | Chemical compound cinobufotalin potently induces FOXO1-stimulated cisplatin sensitivity by antagonizing its binding partner MYH9显示文摘In this study,we present novel molecular mechanisms by which FOXO1 functions as a tumor suppressor to prevent the pathogenesis of nasopharyngeal carcinoma(NPC).First,we observed that FOXO1 not only controlled tumor stemness and metastasis,but also sensitized NPC cells to cisplatin(DDP)in vitro and in vivo.Mechanistic studies demonstrated that FOXO1-induced miR-200b expression through the GSK3β/β-catenin/TCF4 network-mediated stimulation of ZEB1,which reduced tumor stemness and the epithelial–mesenchymal transition(EMT)signal.Furthermore,we observed FOXO1 interaction with MYH9 and suppression of MYH9 expression by modulating the PI3K/AKT/c-Myc/P53/miR-133a-3p pathway.Decreased MYH9 expression not only reduced its interactions with GSK3β,but also attenuated TRAF6 expression,which then decreased the ubiquitin-mediated degradation of GSK3βprotein.Increased GSK3βexpression stimulated theβ-catenin/TCF4/ZEB1/miR-200b network,which increased the downstream tumor stemness and EMT signals.Subsequently,we observed that chemically synthesized cinobufotalin(CB)strongly increased FOXO1-induced DDP chemosensitivity by reducing MYH9 expression,and the reduction in MYH9 modulated GSK3β/β-catenin and its downstream tumor stemness and EMT signal in NPC.In clinical samples,the combination of low FOXO1 expression and high MYH9 expression indicated the worst overall survival rates.Our studies demonstrated that CB potently induced FOXO1-mediated DDP sensitivity by antagonizing its binding partner MYH9 to modulate tumor stemness in NPC. | YongHao Li Xiong Liu Xian Lin Menyang Zhao Yanyi Xiao Chen Liu Zixi Liang Zelong Lin Renhui Yi Zibo Tang Jiahao Liu Xin Li Qingping Jiang Libo Li Yinyin Xie Zhen Liu Weiyi Fang | 2019 | Signal Transduction and Targeted Therapy2019,4,1: | 6 |
| 6 | Nuclear Aurora kinase A switches m^(6)A reader YTHDC1 to enhance an oncogenic RNA splicing of tumor suppressor RBM4显示文摘Aberrant RNA splicing produces alternative isoforms of genes to facilitate tumor progression,yet how this process is regulated by oncogenic signal remains largely unknown.Here,we unveil that non-canonical activation of nuclear AURKA promotes an oncogenic RNA splicing of tumor suppressor RBM4 directed by m^(6)A reader YTHDC1 in lung cancer.Nuclear translocation of AURKA is a prerequisite for RNA aberrant splicing,specifically triggering RBM4 splicing from the full isoform(RBM4-FL)to the short isoform(RBM4-S)in a kinase-independent manner. | SiSi Li YangFan Qi JiaChuan Yu YuChao Hao Bin He MengJuan Zhang ZhenWei Dai TongHui Jiang SuYi Li Fang Huang Ning Chen Jing Wang MengYing Yang DaPeng Liang Fan An JinYao Zhao WenJun Fan YuJia Pan ZiQian Deng YuanYuan Luo Tao Guo Fei Peng ZhiJie Hou ChunLi Wang FeiMeng Zheng LingZhi Xu Jie Xu QingPing Wen BiLian Jin Yang Wang Quentin Liu | 2022 | Signal Transduction and Targeted Therapy2022,7,5: | 4 |
| 7 | Toxicity assessment and histopathological analysis of nano-ZnO against marine fish(Mugilogobius chulae) embryos显示文摘The toxicity of nano-materials has received increasing attention in recent years.Nevertheless,relatively few studies have focused on their oceanic distributions and toxicities.In this study,we assessed nano-ZnO toxicity in marine organisms using the yellowstriped goby(Mugilogobius chulae).The relative differences in nano-ZnO dissolution and dispersal in seawater and fresh water were also investigated.The effects of nano-ZnO on embryonic development,deformity,hatching,mortality,and histopathology were analyzed.In addition,the effects of the Zn^(2+) concentration on M.chulae hatching and mortality were compared.The results showed that nano-ZnO had higher solubility in seawater than in fresh water.Nano-ZnO significantly inhibited hatching.By the fifth day of exposure,the LC_(50) of nano-ZnO was 45.40 mg/L,and the mortality rate spiked.Hatching inhibition and lethality were dose-dependent over a range of1–25 mg/L nano-ZnO.Zn^(2+) inhibited hatching and increased lethality,but its effects were weaker than those of nano-ZnO at the same concentrations.Nano-ZnO also induced spinal bending,oedema,hypoplasia,and other deformities in M.chulae embryos and larvae.Histopathology revealed vacuolar degeneration,hepatocyte and enterocyte enlargement,and morphological abnormalities of the vertebrae.Therefore,nano-ZnO caused malformations in M.chulae by affecting embryonic growth and development.We conclude that nano-ZnO toxicity in seawater was significantly positively correlated with the associated Zn^(2+) concentration and sedimentary behaviour.The toxicity of nano-ZnO was cumulative and showed a critical point,beyond which embryonic and developmental toxicity in marine fish was observed. | Jianjun Li Zhanming Chen Ren Huang Zongyu Miao Lei Cai Qingping Du | 2018 | Journal of Environmental Sciences2018,30,11: | 4 |
| 8 | Chelating agents role on phase formation and surface morphology of single orthorhombic YMn_2O_5 nanorods via modified polyacrylamide gel route显示文摘YMn2O5nanorods were synthesized through a modified polyacrylamide gel route.The synthesis strategy in this work is based on a sol-gel process using a polyacrylamide gel method in which oxalic acid,citric acid or tartaric acid is employed as the chelating agent.In the gel routes,oxalic acid was used as a carboxyl chelating agent,while citric acid or tartaric acid was a carboxyl and hydroxyl chelating agent.The as-prepared samples were characterized by means of techniques such as X-ray powder diffraction(XRD)measurement,thermogravimetric analysis(TG),differential scanning calorimetry analysis(DSC),Fourier transform infrared spectroscopy(FTIR),X-ray photoelectron spectroscopy(XPS),thermal expansion measurement and field-emission scanning electron microscopy(SEM)investigations.It was found that oxalic acid is the best chelating agent with Y(NO3)3·6H2O and Mn(CH3COO)2·4H2O as precursors to prepare a single orthorhombic YMn2O5nanorods at 1000°C.Scanning electron microscope observation shows that the morphology of YMn2O5powders is significantly dependent on the chelating agent.The peaks(single orthorhombic YMn2O5nanorods)at 642,600,573,546,521,493,486,468,448 and 400cm?1were observed from FTIR spectra.The phase,surface morphology and chelation mechanisms of YMn2O5samples have been discussed on the basis of the experimental results. | WANG ShiFa ZHANG ChuanFei SUN GuangAi CHEN Bo XIANG Xia DING QingPing ZU XiaoTao | 2014 | Science China Chemistry2014,57,3: | 4 |
| 9 | Microstructure and thermal stability behavior of a rapidly solidified Al-Ti-Fe-Cr alloy显示文摘A rapidly solidified Al-2.5Ti-2.5Fe-2.5Cr (mass fraction in %) alloy was prepared by melt spinning. Asquenched and as-annealed microstructures were studied by X-ray diffractometry (XRD), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HREM) and energy dispersive spectrum (EDS) analysis.The microhardness of the alloy at different annealing temperatures was measured. The results obtained indicate that the microhardness of the rapidly solidified Al-2.5Ti-2.5Fe-2.5Cr alloy does not vary with different annealing temperatures.The as-quenched microstructure of the alloy includes two kinds of dispersed primary phases: Al3Ti and Al13(Cr, Fe)2. After annealing at 400 ℃ for 10 h, the stable phase Al13Fe4 appears in the microstructure. | CHEN Yiqing, CAO Qingping, and SU YongSchool of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China | 2002 | Rare Metals2002,21,3: | 3 |
| 10 | The Response of Vegetation Biomass to Soil Properties along Degradation Gradients of Alpine Meadow at Zoige Plateau显示文摘Alpine grassland of the Tibetan Plateau has undergone severe degradation, even desertification. However, several questions remain to be answered, especially the response mechanisms of vegetation biomass to soil properties. In this study, an experiment on degradation gradients was conducted in an alpine meadow at the Zoige Plateau in 2017. Both vegetation characteristics and soil properties were observed during the peak season of plant growth. The classification and regression tree model(CART) and structural equation modelling(SEM) were applied to screen the main factors that govern the vegetation dynamics and explore the interaction of these screened factors. Both aboveground biomass(AGB) and belowground biomass(BGB) experienced a remarkable decrease along the degradation gradients. All soil properties experienced significant variations along the degradation gradients at the 0.05 significance level. Soil physical and chemical properties explained 54.78% of the variation in vegetation biomass along the degradation gradients. AGB was mainly influenced by soil water content(SWC), soil bulk density(SBD), soil organic carbon(SOC), soil total nitrogen(STN), and pH. Soil available nitrogen(SAN), SOC and p H, had significant influence on BGB. Most soil properties had positive effects on AGB and BGB, while SBD and p H had a slightly negative effect on AGB and BGB. The correlations of SWC with AGB and BGB were relatively less significant than those of other soil properties. Our results highlighted that the soil properties played important roles in regulating vegetation dynamics along the degradation gradients and that SWC is not the main factor limiting plant growth in the humid Zoige region. Our results can provide guidance for the restoration and improvement of degraded alpine grasslands on the Tibetan Plateau. | LIU Miao ZHANG Zhenchao SUN Jian XU Ming MA Baibing TIJJANI Sadiy Baba CHEN You-jun ZHOU Qingping | 2020 | Chinese Geographical Science2020,30,3: | 3 |
| 11 | Comparative study on the weight loss and lipid metabolism by tea polyphenols in diet induced obese C57BL/6J pseudo germ free and conventionalized mice显示文摘The role of gut microbiota in terms of host health is becoming increasingly important.In this study,the comparative effects of tea polyphenols(TPs)on weight loss and lipid metabolism on conventionalized mice(CVZ)and pseudo germ-free(PGF)mice(treated with antibiotics)were investigated.Our findings revealed that high fat(HF)diet considerably increased the body weight,total fat and upsurge lipid indices in CVZ mice but PGF mice were not sensitive to the effect of HF diet as CVZ mice.After the dietary administration of TP,body weight,perirenal fat and epididymal fat,liver weight,glucose(GLU)level,total chloestrol(TC level),high density lipoprotein-cholesterol(HDL-C)level significantly lowered in PGF mice as compared to CVZ mice group.However,the area of fat cells and triglyceride(TG)level were significantly increased in PGF mice.In CVZ mice,TP intervention resulted in a considerable drop in the Firmicutes/Bacteroides ratio as compared to PGF mice.The intestinal flora of PGF mice was severely reduced after antibiotic treatment,while TP administration restored intestinal diversity;the abundance of Akkermansia and Lactobacillus increased,whereas the abundance of Enterobacteriaceae and Prevotella reduced.Overall,we can assume that PGF obese mice administered with TP have less anti-obesity effects compared to obese CVZ mice. | Kashif Hussain Yingying Yang Jie Wang Hengjuan Bian Xi Lei Junjie Chen Qianying Li Li Wang Qingping Zhong Xiang Fang Yutao Wang Hong Wei Yigang Tong Zhenlin Liao | 2022 | Food Science and Human Wellness2022,11,3: | 2 |
| 12 | The detection of tetrahydrofuran hydrate formation and saturation using magnetic resonance imaging technique显示文摘Tetrahydrofuran(THF) hydrate was formed in bulk as well as in glass beads pack with a mean diameter of 3.0 mm by controlling the temperature under ambient pressure.Images of THF hydrate formation procedure were obtained using the magnetic resonance imaging(MRI) technique.The experiment results showed that MRI is an effective method for the detection of hydrate formation.Saturation of hydrate formed both in bulk and glass beads can be confirmed by intensity integration of MRI images. | Yu Liu Yongchen Song Yongjun Chen Lei Yao Qingping Li | 2010 | Journal of Natural Gas Chemistry2010,19,3: | 2 |
| 13 | Performance analysis of multi-group three-tuple cross-eye jamming显示文摘Monopulse radar is widely used in military.Jamming monopulse radar has always been a research hotspot in electronic warfare(EW).Cross-eye jamming has always been considered as the most effective measures to jam with monopulse radar.In this paper, we propose a multi-group three-tuple crosseye jamming structure where each group contains three antenna elements with a definite phase and an amplitude relationship.Then, based on the principle of monopulse angle measurement, the error angle is deduced theoretically.Simulations show that such a multi-group three-tuple cross-eye jamming structure performs better than the multi-element cross-eye jamming structure previously proposed, and the analysis of the centroid shows that the centroid of the structure proposed in this paper is more widely distributed in space. | CHEN Jiabei SHI Qingzhan HUANG Zhaoyu WANG Qingping YUAN Naichang | 2022 | Journal of Systems Engineering and Electronics2022,33,1: | 2 |
| 14 | Immortalized mouse dental papilla mesenchymal cells preserve odontoblastic phenotype and respond to bone morphogenetic protein 2显示文摘 | Feng Wang Li-An Wu Wentong Li Yuan Yang Feng Guo Qingping Gao Hui-Hsiu Chuang Lisa Shoff Wei Wang Shuo Chen | 2013 | In Vitro Cellular & Developmental Biology - Animal2013,,: | 1 |
| 15 | Multiple Center Research on Relationship Between Screening Quality and Detection of Cervical Cancer—Six Provinces,China,June–December 2021显示文摘The coverage and quality of screening are essential for reducing the incidence of cervical precancers and cervical cancer.This multicenter study aimed to investigate the relationship between screening quality and the detection of cervical precancers and cervical cancer.The study was conducted from June to December 2021 in six hospitals across six provinces.The 2,945 participants were non-pregnant women who underwent colposcopy examinations.The average age of participants was 40.9±11.5 years old.Only 6.9%of participants had received human papillomavirus(HPV)vaccination.A total of 92.6%of participants had abnormal cervical screening results.Of the participants,577 had high-grade squamous intraepithelial lesions(HSIL)or worse(≥HSIL),with a detection rate of 19.6%.Univariate analysis indicated that a lack of cervical cancer screening history in the past five years,as well as positive cervical screening and abnormal colposcopic impression,were independent associated factors of the≥HSIL detection rate.A multivariable logistic regression showed that positive cervical screening[odds ratio(OR)=1.75,95%confidence interval(CI):1.07–2.86]was a risk factor for detecting≥HSIL.Low-grade,high-grade,and cancer of colposcopic impression were associated with a higher risk for detecting≥HSIL(OR=2.94,95%CI:2.13–4.08;OR=36.64,95%CI:26.07–51.48).It is important to disseminate health knowledge to improve public awareness of cervical cancer prevention and to enhance the capacity building of professional staff to improve the quality of cervical cancer screening. | Xiaosong Zhang Weihong Chen Xinxin Zhu Hui Bi Qingping Zhao Yunfeng Fu Lina Zhang Chunmei Zhang Ning Huang | 2023 | China CDC weekly2023,5,14: | 1 |
| 16 | Prevalence and characterization of Listeria monocytogenes isolated from retail-level ready-to-eat foods in South China显示文摘 | Moutong Chen Qingping Wu Jumei Zhang Ze′an Yan Jun Wang | 2014 | Food Control2014,,: | 1 |
| 17 | Ligustrazine formation in Zhenjiang aromatic vinegar: changes during fermentation and storing process显示文摘 | Xu Wei Xu Qingping Chen Jinghua | 2011 | J Sci Food Agric2011,91,: | 1 |
| 18 | Enhanced catalytic oxidation of dichloromethane by a surfactant-modified CeO_(2)@TiO_(2) core-shell nanostructured catalyst显示文摘Surfactant-modified CeO_(2)@TiO_(2) core-shell nanostructure catalysts were prepared by coprecipitation with the addition of sodium dodecyl sulfonate(SDS),and their catalytic oxidation of dichloromethane(DCM) was studied.A 90% DCM conversion efficiency is obtained at 300℃ with the CeO_(2)@TiO_(2)SDS catalyst,and its catalytic stability in the 55 h test period is better than that of Ce/TiO_(2) and CeO_(2)@TiO_(2).Based on the characterization of CeO_(2)@TiO_(2)SDS,the dispersion of active components is promoted due to the inhibition of crystal growth with the introduction of SDS.The improvement of surface acidity and redox capacity is beneficial to the enhancement of catalytic activity.The higher adsorbed oxygen content on the surface of the CeO_(2)@TiO_(2)SDS catalyst is responsible for the better catalytic stability.Generally,a novel method was developed to design catalytic oxidation catalysts for the treatment of chlorinated volatile organic compounds in future applications. | Mengjie Fan Qingping Zou Jining Liu Yingwen Chen Jianliang Zhu Shubao Shen | 2023 | Journal of Rare Earths2023,41,7: | 1 |
| 19 | Superiority of nanosized over microsized hyperbranched polymer second phase in modifying brittle epoxy resin显示文摘 | Yang Jiaoping Feng Qingping Chen Zhenkun | 2011 | Journal of Applied Polymer Science2011,119,2: | 1 |
| 20 | Aerodynamic noise reduction of small axial fan using hush characteristics of eagle owl feather显示文摘 | CHEN Kun LIU Qingping LIAO Genghua | 2012 | Journal of Jilin University2012,42,1: | 1 |