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| 1 | Additive manufacturing of hydroxyapatite bioceramic scaffolds: Dispersion, digital light processing, sintering, mechanical properties, and biocompatibility显示文摘Hydroxyapatite(HA)bioceramic scaffolds were fabricated by using digital light processing(DLP)based additive manufacturing.Key issues on the HA bioceramic scaffolds,including dispersion,DLP fabrication,sintering,mechanical properties,and biocompatibility were discussed in detail.Firstly,the ffects of dispersant dosage,solid loading,and sintering temperature were studied.The optimal dispersant dosage,solid loading,and sintering temperature were 2wt%,50vol%,and 1250℃,respectively.Then,the mechanical properties and biocompatibility of the HA bioceramic scaffolds were investigated.The DLP-prepared porous HA bioceramic scaffold was found to exhibit excellent mechanical properties and degradation behavior.From this study,DLP technique shows good potential for manufacturing HA bioceramic scaffolds. | Chengwei FENG Keqiang ZHANG Rujie HE Guojiao DING Min XIA Xinxin JIN Chen XIE | 2020 | Journal of Advanced Ceramics2020,9,3: | 12 |
| 2 | An update on the role of intestinal cytochrome P450 enzymes in drug disposition显示文摘Oral administration is the most commonly used route for drug treatment.Intestinal cytochrome P450(CYP)-mediated metabolism can eliminate a large proportion of some orally administered drugs before they reach systemic circulation,while leaving the passage of other drugs unimpeded.A better understanding of the ability of intestinal P450 enzymes to metabolize various clinical drugs in both humans and preclinical animal species,including the identification of the CYP enzymes expressed,their regulation,and the relative importance of intestinal metabolism compared to hepatic metabolism,is important for improving bioavailability of current drugs and new drugs in development.Here,we briefly review the expression of drug-metabolizing P450 enzymes in the small intestine of humans and several preclinical animal species,and provide an update of the various factors or events that regulate intestinal P450 expression,including a cross talk between the liver and the intestine.We further compare various clinical and preclinical approaches for assessing the impact of intestinal drug metabolism on bioavailability,and discuss the utility of the intestinal epithelium–specific NADPH-cytochrome P450 reductasenull(IECN) mouse as a useful model for studying in vivo roles of intestinal P450 in the disposition of orally administered drugs. | Fang Xie Xinxin Ding Qing-Yu Zhang | 2016 | Acta Pharmaceutica Sinica B2016,6,5: | 10 |
| 3 | Highly luminescent and stable lead-free cesium copper halide perovskite powders for UV-pumped phosphor-converted light-emitting diodes显示文摘Lead halide perovskites have drawn extensive attention over recent decades owing to their outstanding photo-electric performances.However,their toxicity and instability are big issues that need to be solved for further commercialization.Herein,we adopt a facile dry ball milling method to synthesize lead-free Cs3Cu2X5(X=I,CI)perovskites with photoluminescence(PL)quantum yield up to 60%.The optical features including broad emission spectrum,large Stokes shift,and long PL lifetime can be attributed to self-trapped exciton recombination.The as-synthesized blue emissive Cs3Cu2I5 and green emissive Cs3Cu2Cl5 lead-free perovskite powders have good thermal stability and photostability.Furthermore,UV-pumped phosphor-converted light-emitting diodes were obtained by using Cs3Cu2I5 and Cs3Cu2Cl5 as phosphors. | LINGLING XIE BINGKUN CHEN FA ZHANG ZHENG ZHAO XINXIN WANG LIJIE SHI YUE LIU LINGLING HUANG RUIBIN LIU BINGSUO ZOU YONGTIAN WANG | 2020 | Photonics Research2020,8,6: | 5 |
| 4 | Bayesian synthetic evaluation of multistage reliability growth with instant and delayed fix modes显示文摘In the multistage reliability growth tests with instant and delayed fix modes,the failure data can be assumed to follow Weibull processes with different parameters at different stages.For the Weibull process within a stage,by the proper selection of prior distribution form and the parameters,a concise posterior distribution form is obtained,thus simplifying the Bayesian analysis.In the multistage tests,the improvement factor is used to convert the posterior of one stage to the prior of the subsequent stage.The conversion criterion is carefully analyzed to determine the distribution parameters of the subsequent stage's variable reasonably.Based on the mentioned results, a new synthetic Bayesian evaluation program and algorithm framework is put forward to evaluate the multistage reliability growth tests with instant and delayed fix modes.The example shows the effectiveness and flexibility of this method. | Yan Zhiqiang Li Xinxin Xie Hongwei Jiang Yingjie | 2008 | Journal of Systems Engineering and Electronics2008,19,6: | 5 |
| 5 | The histone methyltransferase EZH2 primes the early differentiation of follicular helper T cells during acute viral infection显示文摘Epigenetic modifications to histones dictate the differentiation of naïve CD4^(+) T cells into different subsets of effector T helper(TH)cells.The histone methyltransferase enhancer of zeste homolog 2(EZH2)has been implicated in the mechanism regulating the differentiation of TH1,TH2 and regulatory T(Treg)cells.However,whether and how EZH2 regulates follicular helper T(TFH)cell differentiation remain unknown.Using a mouse model of acute lymphocytic choriomeningitis virus(LCMV)infection,we observed abundant EZH2 expression and associated H3K27me3 modifications preferentially in the early committed virus-specific TFH cells compared to those in TH1 cells.Ablation of EZH2 in LCMV-specific CD4^(+) T cells leads to a selective impairment of early TFH cell fate commitment,but not late TFH differentiation or memory TFH maintenance.Mechanistically,EZH2 specifically stabilizes the chromatin accessibility of a cluster of genes that are important for TFH fate commitment,particularly B cell lymphoma 6(Bcl6),and thus directs TFH cell commitment.Therefore,we identified the chromatin-modifying enzyme EZH2 as a novel regulator of early TFH differentiation during acute viral infection. | Xiangyu Chen Guoshuai Cao Jialin Wu Xinxin Wang Zhiwei Pan Jianbao Gao Qin Tian Lifan Xu Zhirong Li Yaxing Hao Qizhao Huang Pengcheng Wang Minglu Xiao Luoyingzi Xie Shupei Tang Zhenyu Liu Li Hu Jianfang Tang Ran He Li Wang Xinyuan Zhou Yuzhang Wu Mengjie Chen Beicheng Sun Bo Zhu Jun Huang Lilin Ye | 2020 | Cellular & Molecular Immunology2020,17,3: | 4 |
| 6 | Influence of the NAO on Wintertime Surface Air Temperature over East Asia:Multidecadal Variability and Decadal Prediction显示文摘In this paper,we investigate the influence of the winter NAO on the multidecadal variability of winter East Asian surface air temperature(EASAT)and EASAT decadal prediction.The observational analysis shows that the winter EASAT and East Asian minimum SAT(EAmSAT)display strong in-phase fluctuations and a significant 60-80-year multidecadal variability,apart from a long-term warming trend.The winter EASAT experienced a decreasing trend in the last two decades,which is consistent with the occurrence of extremely cold events in East Asia winters in recent years.The winter NAO leads the detrended winter EASAT by 12-18 years with the greatest significant positive correlation at the lead time of 15 years.Further analysis shows that ENSO may affect winter EASAT interannual variability,but does not affect the robust lead relationship between the winter NAO and EASAT.We present the coupled oceanic-atmospheric bridge(COAB)mechanism of the NAO influences on winter EASAT multidecadal variability through its accumulated delayed effect of~15 years on the Atlantic Multidecadal Oscillation(AMO)and Africa-Asia multidecadal teleconnection(AAMT)pattern.An NAO-based linear model for predicting winter decadal EASAT is constructed on the principle of the COAB mechanism,with good hindcast performance.The winter EASAT for 2020-34 is predicted to keep on fluctuating downward until~2025,implying a high probability of occurrence of extremely cold events in coming winters in East Asia,followed by a sudden turn towards sharp warming.The predicted 2020/21 winter EASAT is almost the same as the 2019/20 winter. | Jianping LI Tiejun XIE Xinxin TANG Hao WANG Cheng SUN Juan FENG Fei ZHENG Ruiqiang DING | 2022 | Advances in Atmospheric Sciences2022,39,4: | 4 |
| 7 | Amelioration of imiquimod-induced psoriasis-like dermatitis in mice by DSW therapy inspired hydrogel显示文摘Psoriasis is a long-lasting and recurrent autoimmune disease which is incurable so far.Dead Sea water(DSW)therapy is an effective approach to help control the symptoms of psoriasis due to the abundant mineral ions in DSW,which inspired the material formulation in this study.Rubidium–Sodium alginate/Polyacrylamide hydrogels(Rb-SA/PAAm gels)composed of sodium alginate and polyacrylamide interpenetrating network structure with different concentrations of rubidium and certain magnesium and zinc content were prepared for the treatment of psoriasis.The obtained results suggest the good mechanical properties of the Rb-SA/PAAm gels including toughness and swelling performance.In terms of in vitro tests,the Rb-SA/PAAm gels not only show nontoxicity to human keratinocyte cell line(Hacats)but also inhibits the activity against inflammatory NF-κβ signaling pathway.Meanwhile,they can release Rb+which enable the Rb-SA/PAAm gels have better antibacterial ability to Streptococcus and Escherichia coli.The results obtained from in vivo tests indicate that these hydrogels could alleviate the symptoms of psoriasis caused by Imiquimod(IMQ)in mice by reducing the inflammatory factor in STAT3 pathway and therefore reduce the immune stimulation of the spleen.In conclusion,the 100Rb-SA/PAAm gel has demonstrated great potential to be a topical wettable dressing for psoriasis treatment. | Xiang He Bing Zhu WeiJia Xie Yu He Jian Song Yi Zhang Chi Sun Hao Li QiYu Tang XinXin Sun Yanni Tan Yong Liu | 2021 | Bioactive Materials2021,6,2: | 2 |
| 8 | A low-density polyethylene composite with phosphorus-nitrogen based flame retardant and multi-walled carbon nanotubes for enhanced electrical conductivity and acceptable flame retardancy显示文摘Design and exploitation of flame retardant polymers with high electrical conductivity are desired for polymer applications in electronics.Herein,a novel phosphorus-nitrogen intumescent flame retardant was synthesized from pentaerythritol octahydrogen tetraphosphate,phenylphosphonyl dichloride,and aniline.Low-density polyethylene was combined with the flame retardant and multi-walled carbon nanotubes to form a nanocomposite material via a ball-milling and hot-pressing method.The electrical conductivity,mechanical properties,thermal performance,and flame retardancy of the composites were investigated using a four-point probe instrument,universal tensile machine,thermogravimetric analysis,and cone calorimeter tests,respectively.It was found that the addition of multi-walled carbon nanotubes can significantly improve the electrical conductivity and mechanical properties of the low-density polyethylene composites.Furthermore,the combination of multi-walled carbon nanotubes and phosphorus–nitrogen flame retardant remarkably enhances the flame retardancy of matrixes with an observed decrease of the peak heat release rate and total heat release of 49.8%and 51.9%,respectively.This study provides a new and effective methodology to substantially enhance the electrical conductivity and flame retardancy of polymers with an attractive prospect for polymer applications in electrical equipment. | Yong Luo Yuhui Xie Renjie Chen Ruizhi Zheng Hua Wu Xinxin Sheng Delong Xie Yi Mei | 2021 | Frontiers of Chemical Science and Engineering2021,15,5: | 2 |
| 9 | Soluble CD163 and CD163 Expression on Monocytes Associated with Chronic Hepatitis B Inflammation and HBsAg Loss显示文摘Background and Aims:Monocyte/macrophage-associat-ed CD163 is an indicator of the severity of liver inflam-mation and cirrhosis,but the difference of soluble CD163(sCD163)levels in chronic hepatitis B(CHB)patients and hepatitis B surface antigen(HBsAg)-loss patients is un-clear.Herein,we aimed to compare the sCD163 levels in CHB patients and HBsAg-loss patients with or without an-tiviral treatment.Methods:sCD163 and CD163 expres-sion on monocytes were compared among four groups,healthy subjects,treatment-naïve CHB patients,sponta-neous HBsAg-loss patients,and treatment-related HBsAg-loss patients.The correlation between sCD163 levels and clinical parameters in CHB patients was analyzed.A group of 80 patients with hepatitis B virus(HBV)infection and liver biopsy were recruited.Results:sCD163 levels were higher in the CHB group than in the other three groups.sCD163 levels were higher in treatment-related HBsAg-loss patients than in spontaneous HBsAg-loss patients.sCD163 levels were negatively correlated with hepatitis B e-antigen(HBeAg)and HBsAg levels in HBeAg-positive patients.Liv-er biopsy results further demonstrated that sCD163 levels were elevated in CHB patients with substantial inflamma-tion(A≥2)or fibrosis(F≥2).The sCD163 model was more sensitive in predicting inflammation than other noninvasive models.Its levels were higher in patients with normal ala-nine aminotransferase levels and significant inflammation(A≥2)than in patients with no or mild inflammation.Con-clusions:sCD163 and CD163 expression on monocytes were associated with CHB inflammation and HBsAg loss,and may be used as markers to predict HBV-specific im-mune activation. | Peilin Xie Bilian Yao Dao Huang Yongyan Chen Qiming Gong Xinxin Zhang | 2022 | Journal of Clinical and Translational Hepatology2022,10,6: | 2 |
| 10 | Polymyxin resistance caused by large-scale genomic inversion due to IS26 intramolecular translocation in Klebsiella pneumoniae显示文摘Polymyxin B and polymyxin E(colistin)are presently considered the last line of defense against human infections caused by multidrug-resistant Gram-negative organisms such as carbapenemase-producer Enterobacterales,Acinetobacter baumannii,and Klebsiella pneumoniae.Yet resistance to this last-line drugs is a major public health threat and is rapidly increasing.Polymyxin S2(S2)is a polymyxin B analogue previously synthesized in our institute with obviously high antibacterial activity and lower toxicity than polymyxin B and colistin.To predict the possible resistant mechanism of S2for wide clinical application,we experimentally induced bacterial resistant mutants and studied the preliminary resistance mechanisms.Mut-S,a resistant mutant of K.pneumoniae ATCC BAA-2146(Kpn2146)induced by S2,was analyzed by whole genome sequencing,transcriptomics,mass spectrometry and complementation experiment.Surprisingly,large-scale genomic inversion(LSGI)of approximately 1.1 Mbp in the chromosome caused by IS26mediated intramolecular transposition was found in Mut-S,which led to mgrB truncation,lipid A modification and hence S2resistance.The resistance can be complemented by plasmid carrying intact mgrB.The same mechanism was also found in polymyxin B and colistin induced drug-resistant mutants of Kpn2146(Mut-B and Mut-E,respectively).This is the first report of polymyxin resistance caused by IS26 intramolecular transposition mediated mgrB truncation in chromosome in K.pneumoniae.The findings broaden our scope of knowledge for polymyxin resistance and enriched our understanding of how bacteria can manage to survive in the presence of antibiotics. | Haibin Li Lang Sun Han Qiao Zongti Sun Penghe Wang Chunyang Xie Xinxin Hu Tongying Nie Xinyi Yang Guoqing Li Youwen Zhang Xiukun Wang Zhuorong Li Jiandong Jiang Congran Li Xuefu You | 2023 | Acta Pharmaceutica Sinica B2023,13,9: | 1 |
| 11 | Space-time wind speed forecasting for improved power system dispatch显示文摘 | Xinxin Zhu Marc G. Genton Yingzhong Gu Le Xie | 2014 | TEST2014,,1: | 1 |
| 12 | The Effect of Career Plateau on Chinese Employees' Affective Commitment: An Indigenous Career Plateau Scale and Two-Mediator Model显示文摘 | Baoguo Xie Xinxin Lu Wenxia Zhou Xun Xin | 2014 | Frontiers of Business Research in China2014,8,3: | 1 |
| 13 | FeCo-based mesoporous carbon shells modified N-doped porous carbon spheres for oxygen reduction reaction显示文摘Fe Co-based non-noble metal electrocatalysts(NNMEs)of Fe Co/MCS-NPCS was fabricated by immobilization of hemin on mesoporous carbon shells modified N-doped porous carbon spheres(MCS-NPCS).The obtained Fe Co/MCS-NPCS exhibits a half-wave potential(E1/2)of 0.851 V versus the reversible hydrogen electrode(vs.RHE)and a limited-diffusion current density(JL)of 5.45 m A cm^(-2).In addition,Fe Co/MCS-NPCS shows comparable oxygen reduction reaction(ORR)performances to 20 wt%Pt/C in terms of E1/2 and JL and better electrochemical properties,including the methanol tolerance and durability in alkaline solution.Such outstanding electrochemical activities of Fe Co/MCS-NPCS can be ascribed to Fe and/or Co-based nitrides and carbides as well as N-doped carbon matrixes modified with mesoporous carbon shells.This research introduces a promising path to design and synthesize highly efficient Fe Co–N–C electrocatalysts towards ORR. | Xinxin Jin Yan Xie Chaoyue Zhao Yinghao Xu Yang Lv He Wang Li Chen Jiahui Huang | 2021 | Progress in Natural Science:Materials International2021,31,4: | 1 |
| 14 | Tuning Interface Bridging Between MoSe2 and Three‑Dimensional Carbon Framework by Incorporation of MoC Intermediate to Boost Lithium Storage Capability显示文摘Interface engineering has been widely explored to improve the electrochemical performances of composite electrodes,which governs the interface charge transfer,electron transportation,and structural stability.Herein,MoC is incorporated into MoSe2/C composite as an intermediate phase to alter the bridging between MoSe2-and nitrogen-doped three-dimensional(3D)carbon framework as MoSe2/MoC/N–C connection,which greatly improve the structural stability,electronic conductivity,and interfacial charge transfer.Moreover,the incorporation of MoC into the composites inhibits the overgrowth of MoSe2 nanosheets on the 3D carbon framework,producing much smaller MoSe2 nanodots.The obtained MoSe2 nanodots with fewer layers,rich edge sites,and heteroatom doping ensure the good kinetics to promote pseudo-capacitance contributions.Employing as anode material for lithium-ion batteries,it shows ultralong cycle life(with 90%capacity retention after 5000 cycles at 2 A g−1)and excellent rate capability.Moreover,the constructed LiFePO4//MoSe2/MoC/N–C full cell exhibits over 86%capacity retention at 2 A g−1 after 300 cycles.The results demonstrate the effectiveness of the interface engineering by incorporation of MoC as interface bridging intermediate to boost the lithium storage capability,which can be extended as a potential general strategy for the interface engineering of composite materials. | Jing Chen Yilin Luo Wenchao Zhang Yu Qiao Xinxin Cao Xuefang Xie Haoshen Zhou Anqiang Pan Shuquan Liang | 2020 | Nano-Micro Letters2020,12,12: | 1 |
| 15 | Circulating exosome-like vesicles of humans with nondiabetic obesity impaired isletβ-cell proliferation,which was associated with decreased Omentin-1 protein cargo显示文摘The regulation ofβ-cell mass in the status of nondiabetic obesity remains not well understood.We aimed to investigate the role of circulating exosome-like vesicles(ELVs)isolated from humans with simple obesity in the regulation of isletβ-cell mass.Between June 2017 and July 2019,81 subjects with simple obesity and 102 healthy volunteers with normal weight were recruited.ELVs were isolated by ultra-centrifugation.The proliferations ofβ-cells and islets were measured by 5-ethynl-2′-deoxyuridine(EdU).Protein components in ELVs were identified by Quantitative Proteomic Analysis and verified by Western blot and ELISA.The role of specific exosomal protein was analyzed by gain-of-function approach in ELVs released by 3T3-L1 preadipocytes.Circulating ELVs from subjects with simple obesity inhibitedβ-cell proliferation in vitro without affecting its apoptosis,secretion,and inflammation.The protein levels of Rictor and Omentin-1 were downregulated in circulating ELVs from subjects with simple obesity and associated with the obesity-linked pathologic conditions.The ELV-carried Omentin-1 and Omentin-1 protein per se were validated to increaseβ-cell proliferation and activate Akt signaling pathway.Moreover,Omentin-1 in ELVs was downregulated by insulin.The circulating ELVs may act as a negative regulator forβ-cell mass in nondiabetic obesity through inhibitingβ-cell proliferation.This effect was associated with downregulated Omentin-1 protein in ELVs.This newly identified ELV-carried protein could be a mediator linking insulin resistance to impairedβ-cell proliferation and a new potential target for increasingβ-cell mass in obesity and T2DM. | Qian Ge Xinxin Xie Xiangjun Chen Rongfeng Huang Cheng-Xue Rui Qianna Zhen Renzhi Hu Min Wu Xiaoqiu Xiao Xi Li | 2022 | Genes & Diseases2022,9,4: | 1 |
| 16 | A case of duodenal stump leakage caused by Taenia saginata显示文摘To the editor:Duodenal stump leakage is one of the serious complications of Billroth Ⅱ distal gastrectomy,which may cause the diffuse peritonitis,septic shock,and ichoremia,and even threaten the life.we reported a rare case concerning the duodenal stump leakage caused by Taenia saginata. A 59-year-old man,who complained epigastric discomfort,was admitted to a local hospital.After diagnosed with gastric cancer by gastroscopy,the patient came to our hospital for further diagnosis and treatment.The physical examination showed epigastric tenderness,and the CT scan revealed the thickened gastric antrum and enlarged perigastric lymph nodes. | Shao Xinxin Xie Yibin Chen Yingtai Cui Liang Tian Yantao | 2014 | Chinese Medical Journal2014,,19: | 1 |
| 17 | Short-term spatio-temporal wind power forecast in robust look-ahead power system dispatch显示文摘 | Xie Le Gu Yingzhong Zhu Xinxin | 2014 | IEEE Transactions on Smart Grid2014,5,1: | 1 |
| 18 | Short-term spatio-temporal wind power forecast in robust look-ahead power system dispatch显示文摘 | XIE Le GU Yingzhong ZHU Xinxin | 2014 | IEEE Trans on Smart Grid2014,5,1: | 1 |
| 19 | Short-term spatio-temporal wind power forecast in robust look-ahead power system dispatch显示文摘 | Le Xie Yingzhong Gu Xinxin Zhu | 2014 | IEEE Transactions on Smart Grid2014,5,1: | 1 |
| 20 | Effects of atrazine on cytochrome P450 enzymes of zebrafish ( Danio rerio )显示文摘 | Xiaoli Dong Lusheng Zhu Jinhua Wang Jun Wang Hui Xie Xinxin Hou Wentao Jia | 2009 | Chemosphere2009,,3: | 1 |