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40篇 您的检索式:作者名="Shiyu Lin"
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1Nanomaterials and bone regeneration显示文摘The worldwide incidence of bone disorders and conditions has been increasing. Bone is a nanomaterials composed of organic(mainly collagen) and inorganic(mainly nano-hydroxyapatite) components, with a hierarchical structure ranging from nanoscale to macroscale. In consideration of the serious limitation in traditional therapies, nanomaterials provide some new strategy in bone regeneration. Nanostructured scaffolds provide a closer structural support approximation to native bone architecture for the cells and regulate cell proliferation, differentiation, and migration, which results in the formation of functional tissues. In this article,we focused on reviewing the classification and design of nanostructured materials and nanocarrier materials for bone regeneration, their cell interaction properties, and their application in bone tissue engineering and regeneration. Furthermore, some new challenges about the future research on the application of nanomaterials for bone regeneration are described in the conclusion and perspectives part.Tao Gong Jing Xie Jinfeng Liao Tao Zhang Shiyu Lin Yunfeng Lin 2015Bone Research2015,3,3:23
2Condition-based maintenance policy for gamma deteriorating systems显示文摘A condition-based maintenance model for gamma deteriorating system under continuous inspection is studied. This methodology uses a gamma distribution to model the material degradation, and the impact of imperfect maintenance actions on the system reliability is investigated. The state of a degrading system immediately after the imperfect maintenance action is assumed as a random variable and the maintenance time follows a geometric process. Furthermore, the explicit expressions for the long-run average cost and availability per unit time of the system are evaluated, an optimal policy (ξ*) could be determined numerically or analytically according to the optimization model. At last, a numerical example for a degrading system modeled by a gamma process is presented to demonstrate the use of this policy in practical applications.Lin Tan Zhijun Cheng Bo Guo Shiyu Gong 2010Journal of Systems Engineering and Electronics2010,21,1:10
3Effects of tetrahedral framework nucleic acid/wogonin complexes on osteoarthritis显示文摘Osteoarthritis, a disorder characterized by articular cartilage deterioration, varying degrees of inflammation, and chondrocyte apoptosis, is the most common chronic joint disease. To slow or reverse its progression, inflammation should be inhibited, and chondrocyte proliferation should be promoted. Tetrahedral framework nucleic acids can be internalized by chondrocytes(even inflammatory chondrocytes) and can enhance their proliferation and migration. Wogonin, a naturally occurring flavonoid,suppresses oxidative stress and inhibits inflammation. In this study, tetrahedral framework nucleic acids were successfully selfassembled and used to load wogonin. We confirmed the effective formation of tetrahedral framework nucleic acid/wogonin complexes by dynamic light scattering, zeta potential analysis, transmission electron microscopy, and fluorescence spectrophotometry. Tetrahedral framework nucleic acids, wogonin, and especially tetrahedral framework nucleic acid/wogonin complexes effectively alleviated inflammation in vitro and in vivo and prevented cartilage destruction. In addition, these materials remarkably downregulated the expression of inflammatory mediators and matrix metalloproteinases, upregulated chondrogenic markers, and promoted tissue inhibitor of metalloproteinase 1 and B-cell lymphoma 2 expression. In vivo, after treatment with tetrahedral framework nucleic acid/wogonin complexes, the bone mineral density in regenerated tissues was much higher than that found in the untreated groups. Histologically, the complexes enhanced new tissue regeneration, significantly suppressed chondrocyte apoptosis, and promoted chondrogenic marker expression. They also inhibited cell apoptosis, increased chondrogenic marker expression, and suppressed the expression of inflammatory mediators in osteoarthritis. Therefore, we believe that tetrahedral framework nucleic acid/wogonin complexes can be used as an injectable form of therapy for osteoarthritis.Sirong Shi Yang Chen Taoran Tian Songhang Li Shiyu Lin Yuxin Zhang Xiaoru Shao Tao Zhang Yunfeng Lin Xiaoxiao Cai 2020Bone Research2020,8,1:9
4Interferon-armed RBD dimer enhances the immunogenicity of RBD for sterilizing immunity against SARS-CoV-2显示文摘Severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)has caused a global crisis,urgently necessitating the development of safe,efficacious,convenient-to-store,and low-cost vaccine options.A major challenge is that the receptor-binding domain(RBD)-only vaccine fails to trigger long-lasting protective immunity if used alone for vaccination.Shiyu Sun Yueqi Cai Tian-Zhang Song Yang Pu Lin Cheng Hairong Xu Jing Sun Chaoyang Meng Yifan Lin Haibin Huang Fang Zhao Silin Zhang Yu Gao Jian-Bao Han Xiao-Li Feng Dan-Dan Yu Yalan Zhu Pu Gao Haidong Tang Jincun Zhao Zheng Zhang Jiaming Yang Zhenxiang Hu Yang-Xin Fu Yong-Tang Zheng Hua Peng 2021Cell Research2021,31,9:7
5Angiogenesis in a 3D model containing adipose tissue stem cells and endothelial cells is mediated by canonical Wnt signaling显示文摘Adipose-derived stromal cells(ASCs) have gained great attention in regenerative medicine. Progress in our understanding of adult neovascularization further suggests the potential of ASCs in promoting vascular regeneration, although the specific cues that stimulate their angiogenic behavior remain controversial. In this study, we established a three-dimensional(3D) angiogenesis model by co-culturing ASCs and endothelial cells(ECs) in collagen gel and found that ASC-EC-instructed angiogenesis was regulated by the canonical Wnt pathway. Furthermore, the angiogenesis that occurred in implants collected after injections of our collagen gelbased 3D angiogenesis model into nude mice was confirmed to be functional and also regulated by the canonical Wnt pathway. Wnt regulation of angiogenesis involving changes in vessel length, vessel density,vessel sprout, and connection numbers occurred in our system. Wnt signaling was then shown to regulate ASCmediated paracrine signaling during angiogenesis through the nuclear translocation of β-catenin after its cytoplasmic accumulation in both ASCs and ECs. This translocation enhanced the expression of nuclear cofactor Lef-1 and cyclin D1 and activated the angiogenic transcription of vascular endothelial growth factor A(VEGFA), basic fibroblast growth factor(bF GF), and insulin-like growth factor 1(IGF-1). The angiogenesis process in the 3D collagen model appeared to follow canonical Wnt signaling, and this model can help us understand the importance of the canonical Wnt pathway in the use of ASCs in vascular regeneration.Xiaoxiao Cai Jing Xie Yang Yao Xiangzhu Cun Shiyu Lin Taoran Tian Bofeng Zhu Yunfeng Lin 2017Bone Research2017,5,4:6
6Changes in Life Expectancy of Respiratory Diseases from Attaining Daily PM_(2.5) Standard in China: A Nationwide Observational Study显示文摘Although exposure to air pollution increases the risk of premature mortality and years of life lost(YLL),the effects of daily air quality improvement to the life expectancy of respiratory diseases remained unclear.We applied a generalized additive model(GAM)to assess the associations between daily PM_(2.5) exposure and YLL from respiratory diseases in 96 Chinese cities during 2013–2016.We further estimated the avoidable YLL,potential gains in life expectancy,and the attributable fraction by assuming dailyPM_(2.5) concentration decrease to the air quality standards of China and World Health Organization.Regional and national results were generated by random-effects meta-analysis.A total of 861,494 total respiratory diseases and 586,962 chronic obstructive pulmonary disease(COPD)caused death from 96 Chinese cities were recorded during study period.Each 10 mg/m3 increase of PM_(2.5) in 3-day moving average(lag02)was associated with 0.16(95%CI:0.08,0.24)years increment in life expectancy from total respiratory diseases.The highest effect was observed in Southwest region with 0.42(95%CI:0.22,0.62)years increase in life expectancy.By attaining the WHO's Air Quality Guidelines,we estimated that an average of 782.09(95%CI:438.29,1125.89)YLLs caused by total respiratory death in each city could be avoided,which corresponded to 1.15%(95%CI:0.67%,1.64%)of the overall YLLs,and 0.12(95%CI:0.07,0.17)years increment in life expectancy.The results of COPD were generally consistent with total respiratory diseases.Our findings indicate that reduction in daily PM_(2.5) concentrations might lead to longer life expectancy from respiratory death.Yin Yang Jinlei Qi Zengliang Ruan Peng Yin Shiyu Zhang Jiangmei Liu Yunning Liu Rui Li Lijun Wang Hualiang Lin 2020The Innovation2020,1,3:3
7A Novel Family of Catalysts Comprising a Supported Metaland a Supported Aqueous-Phase Catalyst显示文摘ZHU Hejun, DING Yunjie, YAN Li, XIONG Jianmin, LI Xuemin, ZHANG Lianzhong, LIN Peizi, HUANG Shiyu, LIN Liwu (Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian 116023, Liaoning, China) 2003催化学报2003,24,2:3
8Engineered neutrophil apoptotic bodies ameliorate myocardial infarction by promoting macrophage efferocytosis and inflammation resolution显示文摘Inflammatory response plays a critical role in myocardial infarction(MI)repair.The neutrophil apoptosis and subsequent macrophage ingestion can result in inflammation resolution and initiate regeneration,while the therapeutic strategy that simulates and enhances this natural process has not been established.Here,we constructed engineered neutrophil apoptotic bodies(eNABs)to simulate natural neutrophil apoptosis,which regulated inflammation response and enhanced MI repair.The eNABs were fabricated by combining natural neutrophil apoptotic body membrane which has excellent inflammation-tropism and immunoregulatory properties,and mesoporous silica nanoparticles loaded with hexyl 5-aminolevulinate hydrochloride(HAL).The eNABs actively targeted to macrophages and the encapsulated HAL simultaneously initiated the biosynthesis pathway of heme to produce anti-inflammatory bilirubin after intracellular release,thereby further enhancing the anti-inflammation effects.In in vivo studies,the eNABs efficiently modulated inflammation responses in the infarcted region to ameliorate cardiac function.This study demonstrates an effective biomimetic construction strategy to regulate macrophage functions for MI repair.Lili Bao Geng Dou Ran Tian Yajie Lv Feng Ding Siying Liu Ruifeng Zhao Lu Zhao Jun Zhou Lin Weng Yan Dong Bei Li Shiyu Liu Xin Chen Yan Jin 2022Bioactive Materials2022,7,3:3
9Superhydrophobic fluoride conversion coating on bioresorbable magnesium alloy——fabrication,characterization,degradation and cytocompatibility with BMSCs显示文摘A micro-nano structure CaF_(2)chemical conversion layer was prepared on fluoride-treated AZ31 alloy,then the composite fluoride conversion film(CaF_(2)/MgF_(2))was modified by stearic acid(SA)and fabricated a superhydrophobic surface.The fluoride-treated magnesium,fluoride conversion film and superhydrophobic coating were characterized by SEM,EDS,XRD and FTIR.The properties of coatings1 adhesion and corrosion resistance were evaluated via tape test and electrochemical measurement.The cytocompatibility of the MgF_(2),CaF_(2)and superhydrophobic CaF_(2)/SA surface was investigated with bone marrow-derived mesenchymal stem cells(BMSCs)by direct culture for 24 h.The results showed that the superhydrophobic fluoride conversion coating composed of inner MgF_(2)layer and the outer CaF_(2)/SA composite layer had an average water contact angle of 152°.SA infiltrated into the micro-nano structure CaF_(2)layer and formed a strong adhesion with CaF_(2)layer.Furthermore,the super-hydrophobic coating showed higher barrier properties and corrosion resistance compared with the fluoride conversion film and fluoride-treated AZ31 alloy.The BMSC adhesion test results demonstrated MgF_(2)CaF_(2)and CaF_(2)/SA coatings were all nontoxic to BMSC.At the condition of in direct contact with cells,MgF_(2)showed higher cell density and enhanced the BMSCs proliferation,while CaF_(2)and CaF_(2)/SA coating showed no statistically difference in cell density compared with glass reference but the CaF_(2)and CaF_(2)/SA coating were not conducive to BMSCs adhesion.Chunyan Zhanga Shiyu Zhang Dongwei Sun Jiajia Lin Fancheng Meng Huinan Liu 2021Journal of Magnesium and Alloys2021,9,4:3
10Chidamide combined with cyclophosphamide,doxorubicin,vincristine and prednisone in previously untreated patients with peripheral T-cell lymphoma显示文摘Objective:Chidamide is an oral histone deacetylase subtype-selective inhibitor approved for relapsed or refractory peripheral T-cell lymphoma(PTCL).This phase 1 b study evaluated the safety,pharmacokinetics,and preliminary efficacy of chidamide in combination with cyclophosphamide,doxorubicin,vincristine and prednisone(CHOP)for treatment-na?ve PTCL patients.Methods:This study was an open-label,multicenter trial composed of dose escalation and dose expansion.Patients received CHOP for six 21-d cycles and chidamide on d 1,4,8 and 11 in each cycle.Four dose levels of chidamide(20,25,30 and 35 mg)were evaluated.The primary objective was to evaluate the safety and tolerability of the combination regimen.Results:A total of 30 patients were evaluated in this study:15 in the dose-escalation part and 15 in the doseexpansion part.In the dose-escalation study,three patients were enrolled in the 35 mg chidamide cohort.One had dose-limiting toxicity with grade 3 vascular access complications,and one had grade 2 neutropenia with a sustained temperature>38°C.Dose escalation was stopped at this chidamide dose level.The most common(≥10%)grade 3 or 4 adverse events(AEs)were leukopenia(90.0%),neutropenia(83.3%),vomiting(13.3%),thrombocytopenia(10.0%)and febrile neutropenia(10.0%).No significant changes in chidamide pharmacokinetic properties were observed before and after combination treatment.The objective response rate for the 28 patients evaluable for preliminary efficacy was 89.3%(25/28),with 16(57.1%)achieving complete response or unconfirmed complete response.The estimated median progression-free survival was 14.0 months.In summary,we chose chidamide 30 mg as the recommended dose for phase 2.Conclusions:The addition of chidamide to standard CHOP chemotherapy was tolerable with promising preliminary efficacy in previously untreated PTCL patients,which supports further clinical studies with this combination regimen for the frontline treatment of PTCL.Lin Gui Junning Cao Dongmei Ji Huilai Zhang Qian Fan Jun Zhu Yuqin Song Shiyu Jiang Zhiqiang Ning Jia Yu Yuankai Shi 2021Chinese Journal of Cancer Research2021,33,5:3
11Electrochemical Lithium Storage Performance of Molten Salt Derived V_(2)SnC MAX Phase显示文摘MAX phases are gaining attention as precursors of two-dimensional MXenes that are intensively pursued in applications for electrochemical energy storage.Here,we report the preparation of V_(2)SnC MAX phase by the molten salt method.V_(2)SnC is investigated as a lithium storage anode,showing a high gravimetric capacity of 490 mAh g−1 and volumetric capacity of 570 mAh cm^(−3) as well as superior rate performance of 95 mAh g^(−1)(110 mAh cm^(−3))at 50 C,surpassing the ever-reported performance of MAX phase anodes.Sup-ported by operando X-ray diffraction and density functional theory,a charge storage mechanism with dual redox reaction is proposed with a Sn-Li(de)alloying reaction that occurs at the edge sites of V_(2)SnC particles where Sn atoms are exposed to the electrolyte followed by a redox reaction that occurs at V_(2)C layers with Li.This study offers promise of using MAX phases with M-site and A-site elements that are redox active as high-rate lithium storage materials.Youbing Li Guoliang Ma Hui Shao Peng Xiao Jun Lu Jin Xu Jinrong Hou Ke Chen Xiao Zhang Mian Li Per OÅPersson Lars Hultman Per Eklund Shiyu Du Zhifang Chai Zhengren Huang Na Jin Jiwei Ma Ying Liu Zifeng Lin Qing Huang 2021Nano-Micro Letters2021,13,10:2
12Cholesterol homeostasis regulated by ABCA1 is critical for retinal ganglion cell survival显示文摘Genome-wide association studies have suggested a link between primary open-angle glaucoma and the function of ABCA1.ABCA1 is a key regulator of cholesterol efflux and the biogenesis of high-density lipoprotein(HDL) particles. Here, we showed that the POAG risk allele near ABCA1 attenuated ABCA1 expression in cultured cells. Consistently, POAG patients exhibited lower ABCA1 expression, reduced HDL, and higher cholesterol in white blood cells. Ablation of Abca1 in mice failed to form HDL, leading to elevated cholesterol levels in the retina. Counting retinal ganglion cells(RGCs) by using an artificial intelligence(AI) program revealed that Abca1-deficient mice progressively lost RGCs with age. Single-cell RNA sequencing(scRNA-seq) revealed aberrant oxidative phosphorylation in the Abca1-/-retina, as well as activation of the mTORC1 signaling pathway and suppression of autophagy. Treatment of Abca1-/-mice using atorvastatin reduced the cholesterol level in the retina,thereby improving metabolism and protecting RGCs from death. Collectively, we show that lower ABCA1 expression and lower HDL are risk factors for POAG. Accumulated cholesterol in the Abca1-/-retina causes profound aberrant metabolism, leading to a POAG-like phenotype that can be prevented by atorvastatin. Our findings establish statin use as a preventive treatment for POAG associated with lower ABCA1 expression.Jialiang Yang Yuhong Chen Tongdan Zou Bai Xue Fang Yang Xiangzhou Wang Yibo Huo Boyun Yan Yuxia Xu Shiyu He Yi Yin Jing Wang Xiong Zhu Lin Zhang Yu Zhou Zhengfu Tai Ping Shuai Man Yu Qian Luo Yilian Cheng Bo Gong Xianjun Zhu Jing Zhang Xinghuai Sun Ying Lin Houbin Zhang Zhenglin Yang 2023Science China(Life Sciences)2023,66,2:2
13Prognostic value of BCL2 and TP53 genetic alterations for diffuse large B-cell lymphoma patients treated with R-CHOP显示文摘Objective:Limited data about the prognostic significance of BCL2 mutations and BCL2 copy number variations in diffuse large B-cell lymphoma(DLBCL)are available.This study aimed to comprehensively describe BCL2 genetic alterations in DLBCL patients,and examine correlation of BCL2,TP53 and other genetic alterations with outcomes in patients treated with R-CHOP.Methods:Probe capture-based high-resolution sequencing was performed on 191 patients diagnosed with de novo DLBCL.MYC,BCL2,and BCL6 protein expressions were detected by immunohistochemistry.Results:The presence of BCL2 alterations significantly correlated with poor progression-free survival(PFS)(5-year PFS:13.7%vs.40.8%;P=0.003)and overall survival(OS)(5-year OS:34.0%vs.70.9%;P=0.036).Importantly,patients who harbored BCL2 gain/amplifications(BCL2GA/AMP)also had a remarkably inferior 5-year PFS(11.1%vs.38.3%;P<0.001)and OS(22.1%vs.69.6%;P=0.009).In contrast,neither BCL2 mutations nor BCL2 translocations were significantly prognostic for survival.Multivariable analyses showed that the presence of BCL2 alterations,especially BCL2GA/AMP,TP53 mutations,and International Prognostic Index(IPI)were significantly associated with inferior PFS and OS.Novel prognostic models for OS were constructed based on 3 risk factors,including BCL2 alterations(Model 1)or BCL2GA/AMP(Model 2),TP53 mutations,and IPI,to stratify patients into 4 risk groups with different survival outcomes.Conclusions:This study showed that DLBCL patients treated with R-CHOP,BCL2 alterations,especially BCL2GA/AMP and TP53 mutations were significantly associated with inferior outcomes,which were independent of the IPI.The novel prognostic models we proposed predicted outcomes for DLBCL patients treated with R-CHOP,but further validation of the prognostic models is still warranted.Yan Qin Haizhu Chen Peng Liu Changgong Zhang Jianliang Yang Lin Gui Xiaohui He Liqiang Zhou Shengyu Zhou Shiyu Jiang Hongxin Jiang Yuankai Shi 2022Cancer Biology & Medicine2022,19,6:2
14Intrauterine growth restriction alters nutrient metabolism in the intestine of porcine offspring显示文摘Background:Intrauterine growth restriction(IUGR)has negative impacts on the postnatal survival,growth and development of humans and animals,with not only on newborns but also adulthood.However,the characteristics for nutrient digestion and absorption in IUGR offspring are still largely unknown.Therefore,the normal birth weight(NBW)and IUGR growing pigs were used in this study to investigate their differences in nutrient utilization,with an expectition for further nutritional optimization of the IUGR offspring during their later life.Methods:Twelve IUGR and 12 NBW growing pigs were fitted with catheters in their portal vein to measure blood flow rate as well as nutrients and metabolites in plasma.The digestibilities of nutrients in different intestinal segments,and bacterial fermentation in the large intestine were examined to reveal the characteristics of nutrients utilization in IUGR versus NBW pigs.Results:The rate of portal venous blood flow did not differ beween IUGR and NBW pigs.Plasma concentrations of total cholesterol,triglycerides and glucose were much lower but those of urea were higher in the portal vein of IUGR pigs,compared with the NBW pigs.The ileal digestibility of dry matter,gross energy and starch were lower in IUGR pigs than in NBW pigs.IUGR increased hindgut microbial diversity and bacterial fermentation activity in the caecum.In vitro cross-fermentation of ileal digesta by caecal microbes of NBW and IUGR pigs showed that gas production was much higher for IUGR ileal digesta regardless of the source of caecal inocula.Conclusion:IUGR impairs the nutrient digestion and absorption in small intestine,reduces caecal microbial diversity and promotes bacterial fermentation in the large intestine during the growing phase.These findings aid in our understanding of nutrient metabolism in IUGR pigs and provide the basis for future nutritional interventions.Tiantian Li Shimeng Huang Long Lei Shiyu Tao Yi Xiong Guoyao Wu Jie Hu Xiongkun Yuan Shengjun Zhao Bin Zuo Hongjian Yang Yingping Xiao Gang Lin Junjun Wang 2021Journal of Animal Science and Biotechnology2021,12,2:2
15Neurotoxicity mechanism of aconitine in HT22 cells studied by microfluidic chip-mass spectrometry显示文摘Aconitine,a common and main toxic component of Aconitum,is toxic to the central nervous system.However,the mechanism of aconitine neurotoxicity is not yet clear.In this work,we had the hypothesis that excitatory amino acids can trigger excitotoxicity as a pointcut to explore the mechanism of neurotoxicity induced by aconitine.HT22 cells were simulated by aconitine and the changes of target cell metabolites were real-time online investigated based on a microfluidic chip-mass spectrometry system.Meanwhile,to confirm the metabolic mechanism of aconitine toxicity on HT22 cells,the levels of lactate dehydrogenase,intracellular Ca^(2+),reactive oxygen species,glutathione and superoxide dismutase,and ratio of Bax/Bcl-2 protein were detected by molecular biotechnology.Integration of the detected results revealed that neurotoxicity induced by aconitine was associated with the process of excitotoxicity caused by glutamic acid and aspartic acid,which was followed by the accumulation of lactic acid and reduction of glucose.The surge of extracellular glutamic acid could further lead to a series of cascade reactions including intracellular Ca^(2+)overload and oxidative stress,and eventually result in cell apoptosis.In general,we illustrated a new mechanism of aconitine neurotoxicity and presented a novel analysis strategy that real-time online monitoring of cell metabolites can provide a new approach to mechanism analysis.Yingrui Zhang Shiyu Chen Fangfang Fan Ning Xu Xian-Li Meng Yi Zhang Jin-Ming Lin 2023Journal of Pharmaceutical Analysis2023,13,1:2
16Ambient air pollution and low temperature associated with case fatality of COVID-19: A nationwide retrospective cohort study in China显示文摘The evidence for the effects of environmental factors on COVID-19 case fatality remains controversial,and it is crucial to understand the role of preventable environmental factors in driving COVID-19 fatality.We thus conducted a nationwide cohort study to estimate the effects of environmental factors(temperature,particulate matter[PM2.5,PM10],sulfur dioxide[SO2],nitrogen dioxide[NO2],and ozone[O3])on COVID-19 case fatality.A total of 71,808 confirmed COVID-19 cases were identified and followed up for their vital status through April 25,2020.Exposures to ambient air pollution and temperature were estimated by linking the city-and county-level monitoring data to the residential community of each participant.For each participant,two windows were defined:the period from symptom onset to diagnosis(exposure window I)and the period from diagnosis date to date of death/recovery or end of the study period(exposure window II).Cox proportional hazards models were used to estimate the associations between these environmental factors and COVID-19 case fatality.COVID-19 case fatality increased in association with environmental factors for the two exposure windows.For example,each 10 mg/m^(3) increase in PM2.5,PM10,O3,and NO2 in window I was associated with a hazard ratio of 1.11(95%CI 1.09,1.13),1.10(95%CI 1.08,1.13),1.09(95 CI 1.03,1.14),and 1.27(95%CI 1.19,1.35)for COVID-19 fatality,respectively.A significant effect was also observed for low temperature,with a hazard ratio of 1.03(95%CI 1.01,1.04)for COVID-19 case fatality per 1C decrease.Subgroup analysis indicated that these effects were stronger in the elderly,as well as in those with mild symptoms and living in Wuhan or Hubei.Overall,the sensitivity analyses also yielded consistent estimates.Short-term exposure to ambient air pollution and low temperature during the illness would play a nonnegligible part in causing case fatality due to COVID-19.Reduced exposures to high concentrations of PM2.5,PM10,O3,SO2,and NO2 and low temperature would help improve the prognosis and reduce public health burden.Fei Tian Xiaobo Liu Qingchen Chao Zhengmin(Min)Qian Siqi Zhang Li Qi Yanlin Niu Lauren DArnold Shiyu Zhang Huan Li Hualiang Lin Qiyong Liu 2021The Innovation2021,2,3:2
17The Size and Structure of China's Government Debt显示文摘Shiyu Li Shuanglin Lin 2011TheSocial Science Journal 2011(48)2011,,:1
18Crosstalk between adipose-derived stem cells and chondrocytes:when growth factors matter显示文摘Adipose-derived stem cells(ASCs)and mesenchymal stem cells are promising for tissue repair because of their multilineage differentiation capacity.Our previous data confirmed that the implantation of mixed ASCs and chondrocytes into cartilage defects induced desirable in vivo healing outcomes.However,the paracrine action of ASCs on chondrocytes needs to be further elucidated.In this study,we established a co-culture system to achieve cell-to-cell and cell-to-tissue crosstalk and explored the soluble growth factors in both ASCs and chondrocytes supplemented with 1%fetal bovine serum to mimic the physiological microenvironment.In ASCs,we screened for growth factors by semi-quantitative PCR and quantitative real-time PCR and found that the expression of bone morphogenetic protein 2(BMP-2),vascular endothelial growth factor B(VEGFB),hypoxia inducible factor-1α(HIF-1α),fibroblast growth factor-2(FGF-2),and transforming growth factor-β1 significantly increased after co-culture in comparison with mono-culture.In chondrocytes,VEGFA was significantly enhanced after co-culture.Unexpectedly,the expression of collagen II and aggrecan was significantly down-regulated in the co-culture group compared with the mono-culture group.Meanwhile,among all the growth factors screened,we found that the BMP family members BMP-2,BMP-4,and BMP-5 were down-regulated and that VEGFB,HIF-1α,FGF-2,and PDGF were significantly decreased after co-culture.These results suggest that crosstalk between ASCs and chondrocytes is a pathway through the regulated growth factors that might have potential in cartilage repair and regeneration and could be useful for tissue engineering.Juan Zhong Bin Guo Jing Xie Shuwen Deng Na Fu Shiyu Lin Guo Li Yunfeng Lin Xiaoxiao Cai 2015Bone Research2015,3,4:1
19The size and structure of China's government debt显示文摘LI Shiyu LIN Shuanglin 2011The Social Science Journal2011,,9:1
20Experimental exploration of five-qubit quantum error-correcting code with superconducting qubits显示文摘Quantum error correction is an essential ingredient for universal quantum computing.D espite tremendous experimental efforts in the study of quantum error correction,to date,there has been no demonstration in the realis ation of universal quantum error-correcting code,with the subsequent verification of all key features including the identification of an arbitrary physical error,the capability for transversal manipulation of the logical state and state decoding.To address this challenge,we experimentally realise the [5,1,3]code,the so-called smallest perfect code that permits corrections of generic single-qubit errors.In the experiment,having optimised the encoding circuit,we employ an array of superconducting qubits to realise the [5,1,3] code for several typical logical states including the magic state,an indispensable resource for realising non-Clifford gates.The encoded states are prepared with an average fidelity of 57.1(3)% while with a high fidelity of 98.6(1)% in the code space.Then,the arbitrary single-qubit errors introduced manually are identified by measuring the stabilisers.We further implement logical Pauli operations with a fidelity of 97.2(2)% within the code space.Finally,we realise the decoding circuit and recover the input state with an overall fidelity of 74.5(6)%,in total with 92 gates.Our work demonstrates each key aspect of the [5,1,3] code and verifies the viability of experimental realisation of quantum error-correcting codes with superconducting qubits.Ming Gong Xiao Yuan Shiyu Wang Yulin Wu Youwei Zhao Chen Zha Shaowei Li Zhen Zhang Qi Zhao Yunchao Liu Futian Liang Jin Lin Yu Xu Hui Deng Hao Rong He Lu Simon C.Benjamin Cheng-Zhi Peng Xiongfeng Ma Yu-Ao Chen Xiaobo Zhu Jian-Wei Pan 2022National Science Review2022,9,1:1
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