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84篇 您的检索式:作者名="Anqi LI"
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1Progresses on microwave remote sensing of land surface parameters显示文摘Highly accurate observations at various scales on the land surface are urgently needed for the studies of many areas,such as hydrology,meteorology,and agriculture.With the rapid development of remote sensing techniques,remote sensing has had the capacity of monitoring many factors of the Earth's land surface.Especially,the space-borne microwave remote sensing systems have been widely used in the quantitative monitoring of global snow,soil moisture,and vegetation parameters with their all-weather,all-time observation capabilities and their sensitivities to the characteristics of land surface factors.Based on the electromagnetic theories and microwave radiative transfer equations,researchers have achieved great successes in the microwave remote sensing studies for different sensors in recent years.This article has systematically reviewed the progresses on five research areas including microwave theoretical modeling,microwave inversion on soil moisture,snow,vegetation and land surface temperatures.Through the further enrichment of remote sensing datasets and the development of remote sensing theories and inversion techniques,remote sensing including microwave remote sensing will play a more important role in the studies and applications of the Earth systems.SHI JianCheng DU Yang DU JinYang JIANG LingMei CHAI LinNa MAO KeBiao XU Peng NI WenJian XIONG Chuan LIU Qiang LIU ChenZhou GUO Peng CUI Qian LI YunQing CHEN Jing WANG AnQi LUO HeJia WANG YinHui 2012Science China Earth Sciences2012,55,7:24
2Elimination of senescent cells byβ-galactosidase-targeted prodrug attenuates inflammation and restores physical function in aged mice显示文摘Cellular senescence,a persistent state of cell cycle arrest,accumulates in aged organisms,contributes to tissue dysfunction,and drives age-related phenotypes.The clearance of senescent cells is expected to decrease chronic,low-grade inflammation and improve tissue repair capacity,thus attenuating the decline of physical function in aged organisms.However,selective and effective clearance of senescent cells of different cell types has proven challenging.Herein,we developed a prodrug strategy to design a new compound based on the increased activity of lysosomalβ-galactosidase(β-gal),a primary characteristic of senescent cells.Our prodrug SSK1 is specifically activated byβ-gal and eliminates mouse and human senescent cells independently of senescence inducers and cell types.In aged mice,our compound effectively cleared senescent cells in different tissues,decreased the senescence-and age-associated gene signatures,attenuated low-grade local and systemic inflammation,and restored physical function.Our results demonstrate that lysosomalβ-gal can be effectively leveraged to selectively eliminate senescent cells,providing a novel strategy to develop anti-aging interventions.Yusheng Cai Huanhuan Zhou Yinhua Zhu Qi Sun Yin Ji Anqi Xue Yuting Wang Wenhan Chen Xiaojie Yu Longteng Wang Han Chen Cheng Li Tuoping Luo Hongkui Deng 2020Cell Research2020,30,7:12
3Biomass-derived porous carbon highly efficient for removal of Pb(Ⅱ) and Cd(Ⅱ)显示文摘The utilization of abundant and renewable biomass to fabricate advanced functional materials is considered a promising route for environmental applications.Herein,Lignin-based porous carbon with layered graphene-like structure(LPC)is successfully synthesized and applied to efficiently remove Pb(Ⅱ)and Cd(Ⅱ).The as-synthesized LPC materials are systematically characterized and these results show that LPC has a porous graphene-like structure,facilitating the diffusion and immobilization of heavy metal ions.The influence of different reaction parameters(solution pH,initial concentration of metal ions,contact time and adsorbent amount)on the adsorption performance is investigated in details.The results demonstrate that LPC can achieve superior adsorption capacities of 250.5 mg·g^-1 for Pb(Ⅱ)and 126.4 mg·g^-1 for Cd(Ⅱ),which are far superior to the previously reported adsorbents.Pseudo-second order kinetics model and Freundlich isotherm model describe the adsorption process well.Furthermore,the exhausted LPC can be regenerated easily and exhibits the removal efficiency of 96%and 92%for Pb(Ⅱ)and Cd(Ⅱ)after five continuous runs,respectively.This study shows a sustainable strategy for the design of porous carbon material from na?ve biomass and highlights the great potential in wastewater treatment.Anqi Wang Zhikeng Zheng Ruiqi Li Di Hu Yiran Lu Huixia Luo Kai Yan 2019Green Energy & Environment2019,4,4:10
4Primarily screening and analyzing ESTs differentially expressed in rats' primary liver cancer显示文摘Objective: To screen and analyze key express sequence tags (ESTs) which were differentially displayed in every period of SD rats' primary hepatic carcinoma and reveal the molecular mechanism of carcinogenesis. Methods: Using diethylnitrosamine (DENA) as a cancerigenic agent, animal models with different phases of primary hepatic cancer were constructed in SD rats. Rats were respectively sacrificed at d 14, d 28, d 56, d 77, d 105 and d 112 after the rats received DENA by gavage, then the livers were harvested. One part of the livers was classified according to their pathological changes, while the other was reserved for molecular mechanism studies on hepatocarcinogenesis. The differentially expressed genes were isolated from both normal and morbid tissues by mRNA differential display technique (DDRT-PCR). After the fragments were sequenced, bioinformatics were used to analyze the results. Results: Twelve differentially expressed cDNA fragments were obtained. Nine fragments had the homology with known cDNA clones, especially EST-7 was similar to BN/SsNHsdMCW mitochondrion gene and the identity was 100% which suggested EST-7 may be the part of BN/SsNHsdMCW mitochondrion gene. In contrast, other three fragments (EST-1, EST-3 and EST-5) had extremely low identity to any genes registered in GENBANK databases. Conclusions: BN/SsNHsdMCW mitochondrion gene was expressed in different periods of hepatocarcinogenesis. Moreover, EST-1, EST-3 and EST-5 were suggested to contribute to the development of rat hepatocarcinogenesis, and thus may be candidates of new targets of oncogenes or cancer suppressor genes.Dandan Liu Lijuan Zhi Mingxia Ma Dan Qiao Meijuan Wang Yawei Wang Baijie Jin Anqi Li Guting Liu Yiqing Zhang Yanyan Song Hongxu Zhang 2013Chinese Journal of Cancer Research2013,25,1:9
5Osteoblast/fibroblast coculture derived bioactive ECM with unique matrisome profile facilitates bone regeneration显示文摘Extracellular matrix(ECM)with mimetic tissue niches was attractive to facilitate tissue regeneration in situ via recruitment of endogenous cells and stimulation of self-healing process.However,how to engineer the complicate tissue specific ECM with unique matrisome in vitro was a challenge of ECM-based biomaterials in tissue engineering and regenerative medicine.Here,we introduced coculture system to engineer bone mimetic ECM niche guided by cell-cell communication.In the cocultures,fibroblasts promoted osteogenic differentiation of osteoblasts via extracellular vesicles.The generated ECM(MN-ECM)displayed a unique appearance of morphology and biological components.The advantages of MN-ECM were demonstrated with promotion of multiple cellular behaviors(proliferation,adhesion and osteogenic mineralization)in vitro and bone regeneration in vivo.Moreover,proteomic analysis was used to clarify the molecular mechanism of MN-ECM,which revealed a specific matrisome signature.The present study provides a novel strategy to generate ECM with tissue mimetic niches via cell-cell communication in a coculture system,which forwards the development of tissue-bioactive ECM engineering along with deepening the understanding of ECM niches regulated by cells for bone tissue engineering.Mei Li Anqi Zhang Jiajing Li Jing Zhou Yanan Zheng Chi Zhang Dongdong Xia Haijiao Mao Jiyuan Zhao 2020Bioactive Materials2020,5,4:7
6N-myc downstream-regulated gene 2 in the nervous system: from expression pattern to function显示文摘人的 N-myc 下游地调整的基因(NDRG2 ) 2 被显示了是与房间增长,区别, transmembrane 运输,和压力回答联系的多功能的蛋白质。在很哺乳动物的大脑, NDRG2 主要在整个不同区域在 astrocytic 房间被表示。NDRG2 逐渐地在神经发生的规定并且在神经系统疾病的发展被含有,包括 neurodegeneration,局部缺血,和 glioblastoma。这评论在大脑纸巾总结分发和 NDRG2 的 subcellular 本地化,在神经系统加亮 NDRG2 的生理的行动,并且进一步讨论在几神经系统疾病的出现和发展期间的 NDRG2 的角色。Kaifeng Lin Anqi Yin Libo Yao Yan Li 2015Acta Biochimica et Biophysica Sinica2015,47,10:7
7Petrogenesis and Tectonic Significance of the Xiuwacu Two-Period Magmatism in Geza Arc of Yunnan Province: Constraints from Lithogeochemistry, Zircon U-Pb Geochronology and Hf isotopic Compositions显示文摘Objective The Late Cretaceous Xiuwacu ore-bearing porphyry is located in the Geza area of southern Yidun arc,SW China.In this area,the rock mass is mainly composed of three lithofacies:biotite granite porphyry,monzoniticLAI Anqi LI Zhe LIU Xuelong LI Yang 2016Acta Geologica Sinica(English Edition)2016,90,2:6
8A New Method of Wind Turbine Bearing Fault Diagnosis Based on Multi-Masking Empirical Mode Decomposition and Fuzzy C-Means Clustering显示文摘Based on Multi-Masking Empirical Mode Decomposition (MMEMD) and fuzzy c-means (FCM) clustering, a new method of wind turbine bearing fault diagnosis FCM-MMEMD is proposed, which can determine the fault accurately and timely. First, FCM clustering is employed to classify the data into different clusters, which helps to estimate whether there is a fault and how many fault types there are. If fault signals exist, the fault vibration signals are then demodulated and decomposed into different frequency bands by MMEMD in order to be analyzed further. In order to overcome the mode mixing defect of empirical mode decomposition (EMD), a novel method called MMEMD is proposed. It is an improvement to masking empirical mode decomposition (MEMD). By adding multi-masking signals to the signals to be decomposed in different levels, it can restrain low-frequency components from mixing in highfrequency components effectively in the sifting process and then suppress the mode mixing. It has the advantages of easy implementation and strong ability of suppressing modal mixing. The fault type is determined by Hilbert envelope finally. The results of simulation signal decomposition showed the high performance of MMEMD. Experiments of bearing fault diagnosis in wind turbine bearing fault diagnosis proved the validity and high accuracy of the new method.Yongtao Hu Shuqing Zhang Anqi Jiang Liguo Zhang Wanlu Jiang Junfeng Li 2019Chinese Journal of Mechanical Engineering2019,32,3:6
9CXCL16 deficiency attenuates acetaminopheninduced hepatotoxicity through decreasing hepatic oxidative stress and inflammation in mice显示文摘Chemokine C-X-C ligand 16 (CXCL16 ) ,一种单个通行证的类型我属于 CXC chemokine 家庭的膜蛋白质,与在肝损害的煽动性的反应有关。在现在的学习,我们调查了 CXCL16 的 pathophysiological 角色,唯一的膜界限 chemokine,在导致的 acetaminophen (APAP ) 在老鼠的 hepatotoxicity。老鼠与 APAP 被注射,并且血和织物样品在不同时间点被收获。浆液高活动性的组盒子 1 并且 CXCL16 层次被三明治免疫分析确定。肝织物节与 hematoxylin 曙红或与染色的 dihydroethidium 被染色。CXCL16 和另外的 cytokines 的表情被即时聚合酶链反应检验。Ly6-B, p-jun N 终端 kinase (p-JNK ) ,和 JNK 表情被西方的污点分析测量。细胞内部的谷胱甘肽,反应的氧种类,和 malondialdehyde 层次也被测量。APAP 服药过量增加了肝的 CXCL16 mRNA 和浆液 CXCL16 蛋白质层次。CXCL16 缺乏的老鼠显著地展出了更少的肝损害和肝的坏死,以及更低的死亡比野类型(WT ) 响应 APAP 服药过量处理的老鼠。提高的 APAP 在 WT 老鼠的呼吸的链激活,它是强烈在 CXCL16 大美人老鼠颠倒了的氧化应力和减少的 mitochondrial 的生产。另外, CXCL16 缺乏禁止了嗜中性的渗入和 APAP 服药过量处理触发的 proinflammatory cytokines 的生产。我们的学习表明 CXCL16 是对导致 APAP 的 hepatotoxicity 的肝免疫者反应的一个批评管理者,因此由指向 CXCL16 为导致药的尖锐的肝失败的处理提供潜在的策略。Hong Wang Yihui Shao Saisai Zhang Anqi Xie Yanna Ye Lihua Shi Leigang Jin Xuebo Pan Zhuofeng Lin Xiaokun Li Shulin Yang 2017Acta Biochimica et Biophysica Sinica2017,49,6:4
10Optimization of broadband omnidirectional antireflection coatings for solar cells显示文摘Broadband and omnidirectional antireflection coating is generally an effective way to improve solar cell efficiency, because the destructive interference between the reflected and incident light can maximize the light transmission into the absorption layer. In this paper, we report the incident quantum efficiency ηin, not incident energy or power, as the evaluation function by the ant colony algorithm optimization method, which is a swarm-based optimization method. Also, SPCTRL2 is proposed to be incorporated for accurate optimization because the solar irradiance on a receiver plane is dependent on position, season, and time. Cities of Quito, Beijing and Moscow are selected for two-and three-layer antireflective coating optimization over λ = [300,1100] nm and θ = [0°, 90°]. The ηin increases by 0.26%, 1.37% and 4.24% for the above 3 cities, respectively, compared with that calculated by other rigorous optimization algorithms methods, which is further verified by the effect of position and time dependent solar spectrum on the antireflective coating design.Xia Guo Qiaoli Liu Huijun Tian Ben Li Hongyi Zhou Chong Li Anqi Hu Xiaoying He 2019Journal of Semiconductors2019,40,3:4
11Aerial observations of sea ice and melt ponds near the North Pole during CHINARE2010显示文摘An aerial photography has been used to provide validation data on sea ice near the North Pole where most polar orbiting satellites cannot cover. This kind of data can also be used as a supplement for missing data and for reducing the uncertainty of data interpolation. The aerial photos are analyzed near the North Pole collected during the Chinese national arctic research expedition in the summer of 2010(CHINARE2010). The result shows that the average fraction of open water increases from the ice camp at approximately 87°N to the North Pole, resulting in the decrease in the sea ice. The average sea ice concentration is only 62.0% for the two flights(16 and 19 August 2010). The average albedo(0.42) estimated from the area ratios among snow-covered ice,melt pond and water is slightly lower than the 0.49 of HOTRAX 2005. The data on 19 August 2010 shows that the albedo decreases from the ice camp at approximately 87°N to the North Pole, primarily due to the decrease in the fraction of snow-covered ice and the increase in fractions of melt-pond and open-water. The ice concentration from the aerial photos and AMSR-E(The Advanced Microwave Scanning Radiometer-Earth Observing System) images at 87.0°–87.5°N exhibits similar spatial patterns, although the AMSR-E concentration is approximately 18.0%(on average) higher than aerial photos. This can be attributed to the 6.25 km resolution of AMSR-E, which cannot separate melt ponds/submerged ice from ice and cannot detect the small leads between floes. Thus, the aerial photos would play an important role in providing high-resolution independent estimates of the ice concentration and the fraction of melt pond cover to validate and/or supplement space-borne remote sensing products near the North Pole.LI Lanyu KE Changqing XIE Hongjie LEI Ruibo TAO Anqi 2017Acta Oceanologica Sinica2017,36,1:3
12Impact of damping on high speed 850 nm VCSEL performance显示文摘High speed VCSELs are important optical devices in short-reach optical communication links and interconnects because of their low cost and high modulation speeds. In this paper, the impact of damping on the their static and dynamic characteristics is analyzed and demonstrated. Through the shallow corrosion of the top layer DBR, the VCSELs with different damping is designed and fabricated. With the increase of the surface etch depth from 0 to ~55 nm for 9 μm oxide-aperture VCSEL, the K factor related with the damping is reduced from0.31 to 0.23 ns^(-1). When the etch depth of the VCSEL with 9 μm oxide-aperture is decreased to ~25 nm,output power is increased from 4.03 to 4.70 mW and small signal modulation bandwidth is also increased from15.46 to 16.37 GHz. It shows that there is a tradeoff between damping and differential gain for improving modulation speed.Shuai Hu Xiaoying He Yan He Jiale Su Chong Li Anqi Hu Xia Guo 2018Journal of Semiconductors2018,39,11:2
13Heterologous expression of the Haynaldia villosa pattern-recognition receptor CERK1-V in wheat increases resistance to three fungal diseases显示文摘Wheat production is under continuous threat by various fungal pathogens.Identification of multipledisease resistance genes may lead to effective disease control via the development of cultivars with broad-spectrum resistance.Plant Lysin-motif(LysM)-type pattern-recognition receptors,which elicit innate immunity by recognizing fungal pathogen associated molecular patterns such as chitin,are potential candidates for such resistance.In this study,we cloned a LysM receptor-like kinase gene,CERK1-V,from the diploid wheat relative Haynaldia villosa.CERK1-V expression was induced by chitin and Blumeria graminis f.sp.tritici,the causal agent of wheat powdery mildew.Heterologous overexpression of CERK1-V in wheat inhibited the development of three fungal pathogens,thereby increased resistance to powdery mildew,yellow rust,and Fusarium head blight.CERK1-V physically interacted with the wheat Lys M protein Ta CEBi Ps.CERK1-V/Ta CEBi Ps interaction promoted chitin recognition and activated chitin signal transduction in wheat.Transgenic plants with excessively high CERK1-V expression showed high resistance but abnormal plant growth,whereas plants with moderate expression level showed adequate resistance level with no marked impairment of plant growth.In transgenic lines,RNA-seq showed that gene expression involved in plant innate immunity was activated.Expression of genes involved in photosynthesis,ER stress and multiple phytohormone pathways was also activated.Optimized expression of CERK1-V in wheat can confer disease resistance without compromising growth or defense fitness.Anqi Fan Luyang Wei Xu Zhang Jia Liua Li Sun Jin Xiao Yajia Wang Haiyan Wang Jian Hua Ravi P.Singh Zongkuan Wang Xiue Wang 2022The Crop Journal2022,10,6:2
14Epidemiological Characteristics of Occupational Cancers Reported—China,2006−2020显示文摘Introduction:Occupational cancers are a major threat to workers’health in China.The latest version of the Classification and Catalogue of the Occupational Diseases includes 11 occupational cancers.This study analyzed the epidemiological characteristics of occupational cancers in China reported to the National Occupational Disease Reporting System during 2006−2020.Methods:Occupational cancers reported during 2016−2020 were obtained from the National Occupational Disease Reporting System.Epidemiological characteristics were analyzed by year,region,industry,gender,age at diagnosis,and exposure duration to occupational hazards.Results:Overall,a total of 1,116 cases of occupational cancers were reported between 2006 and 2020.The main types reported were leukemia caused by benzene exposure(511,45.79%),lung cancer caused by coke oven exhaust exposure(266,23.84%),and lung cancer and mesothelioma caused by asbestos exposure(226,20.25%).There were 6 provincial-level administrative divisions(PLADs)that had reported over 50 new cases in the last 15 years.Most cases(913,81.18%)were distributed in the manufacturing industry.There were 870(77.96%)male cases and 246(22.04%)female cases.The average age at diagnosis of all reported cases was 51.91±15.85 years,and the median exposure duration to occupational hazards was 12(5.29−23.25)years.Conclusions:There is a large discrepancy between the high morbidity of occupational cancers and a low number of cases diagnosed and reported cases.Occupational cancers in China may be underestimated,and comprehensive measures should be taken to improve the diagnosis and reporting of occupational cancers.Xinxin Li Dan Wang Anqi Liu Weijiang Hu Xin Sun 2022China CDC weekly2022,4,17:2
15Mechanical Behavior and Microstructure of Ultrasonic-Spot-Welded Al/Cu Dissimilar Joints with Zn Interlayer显示文摘The effect of Zn interlayer on the microstructural evolution and mechanical behavior of dissimilar ultrasonic-spot-welded Al/Cu joints was investigated.The tensile lap shear strength in relation to welding energy was analyzed.The experimental results show that two intermetallic compounds,Cu5Zn8 and Al2Cu,were generated at the interface of the ultrasonic-spotwelded Al/Cu joint with a Zn interlayer.The primary joining mechanisms of the joint included the intermetallic compound bonding and metallic bonding caused by solid shear plastic deformation.Meanwhile,with increasing welding energy,the plastic deformation of the material became more substantial.With increasing welding energy,the tensile lap shear strength of the joints first increased and then decreased for the ultrasonic-spot-welded Al/Cu joints with and without Zn interlayers.Under the energy input of 700 J,the bearing load capacity of the ultrasonic-spot-welded Al/Cu joints with a Zn interlayer improved signifi cantly due to the observed intermetallic compound(Cu5Zn8).Chunjie Li Sansan Ao Anqi Wang Qi Wei Manpeng Wu Zhen Luo 2020Transactions of Tianjin University2020,26,4:2
16Core clock component MtLUX controls shoot architecture through repression of MtTB1/MtTCP1A in Medicago truncatula显示文摘Plants are capable of regulating their shoot architecture in response to diverse internal and external environments.The circadian clock is an adaptive mechanism that integrates information from internal and ambient conditions to help plants cope with recurring environmental fluctuations.Despite the current understanding of plant circadian clock and genetic framework underlying plant shoot architecture,the intricate connection between these two adaptive mechanisms remains largely unclear.In this study,we elucidated how the core clock gene LUX ARRHYTHMO(LUX)regulates shoot architecture in the model legume plant Medicago truncatula.We show that mtlux mutant displays increased main stem height,reduced lateral shoot length,and decreased the number of lateral branches and biomass yield.Gene expression analysis revealed that Mt LUX regulated shoot architecture by repressing the expression of strigolactone receptor MtD14 and MtTB1/MtTCP1A,a TCP gene that functions centrally in modulating shoot architecture.In vivo and in vitro experiments showed that Mt LUX directly binds to a cis-element in the promoter of MtTB1/MtTCP1A,suggesting that Mt LUX regulates branching by rhythmically suppressing MtTB1/MtTCP1A.This work demonstrates the regulatory effect of the circadian clock on shoot architecture,offering a new understanding underlying the genetic basis towards the flexibility of plant shoot architecture.Liping Wang Anqi Zhou Lulu Wang Jing Li Mingkang Yang Tingting Duan Jian Jin Liang Chen Liangfa Ge Wei Huang 2023The Crop Journal2023,11,3:2
17Characteristics of oral methicillin-resistant Staphylococcus epidermidis isolated from dental plaque显示文摘The oral microbial community is widely regarded as a latent reservoir of antibiotic resistance genes. This study assessed the molecular epidemiology, susceptibility profile, and resistance mechanisms of 35 methicillin-resistant Staphylococcus epidermidis(MRSE) strains isolated from the dental plaque of a healthy human population. Broth microdilution minimum inhibitory concentrations(MICs) revealed that all the isolates were nonsusceptible to oxacillin and penicillin G. Most of them were also resistant to trimethoprim(65.7%) and erythromycin(54.3%). The resistance to multiple antibiotics was found to be largely due to the acquisition of plasmid-borne genes. The mec A and dfr A genes were found in all the isolates, mostly dfr G(80%), aac A-aph D(20%), aad D(28.6%), aph A3(22.9%), msr A(5.7%), and the erm C gene(14.3%). Classical mutational mechanisms found in these isolates were mainly efflux pumps such as qac A(31.4%), qac C(25.7%), tet K(17.1%), and nor A(8.6%). Multilocus sequence type analysis revealed that sequence type 59(ST59) strains comprised 71.43% of the typed isolates, and the e BURST algorithm clustered STs into the clonal complex 2-II(CC2-II). The staphyloccoccal cassette chromosome mec(SCCmec) type results showed that 25(71.43%) were assigned to type IV. Moreover, 88.66% of the isolates were found to harbor six or more biofilm-associated genes. The aap, atl E, embp, sdr F, and IS256 genes were detected in all 35 isolates. This research demonstrates that biofilm-positive multipleantibiotic-resistant ST59-SCCmec IV S. epidermidis strains exist in the dental plaque of healthy people and may be a potential risk for the transmission of antibiotic resistance.Boyu Tang Tao Gong Yujia Cui Lingyun Wang Chao He Miao Lu Jiamin Chen Meiling Jing Anqi Zhang Yuqing Li 2020International Journal of Oral Science2020,12,2:2
18Circadian rhythms driving a fast-paced root clock implicate species-specific regulation in Medicago truncatula显示文摘Plants have a hierarchical circadian structure comprising multiple tissue-specific oscillators that operate at different speeds and regulate the expression of distinct sets of genes in different organs.However,the identity of the genes differentially regulated by the circadian clock in different organs,such as roots,and how their oscillations create functional specialization remain unclear.Here,we profiled the diurnal and circadian landscapes of the shoots and roots of Medicago truncatula and identified the conserved regulatory sequences contributing to transcriptome oscillations in each organ.We found that the light-dark cycles strongly affect the global transcriptome oscillation in roots,and many clock genes oscillate only in shoots.Moreover,many key genes involved in nitrogen fixation are regulated by circadian rhythms.Surprisingly,the root clock runs faster than the shoot clock,which is contrary to the hierarchical circadian structure showing a slow-paced root clock in both detached and intact Arabidopsis thaliana(L.)Heynh.roots.Our result provides important clues about the species-specific circadian regulatory mechanism,which is often overlooked,and possibly coordinates the timing between shoots and roots independent of the current prevailing model.Liping Wang Anqi Zhou Jing Li Mingkang Yang Fan Bu Liangfa Ge Liang Chen Wei Huang 2021Journal of Integrative Plant Biology2021,63,8:2
19Detecting genetic hypermutability of gastrointestinal tumor by using a forensic STR kit显示文摘Growing evidence suggests that somatic hypermutational status and programmed cell death-1 overexpression are potential predictive biomarkers indicating treatment benefits from immunotherapy using immune checkpoint inhibitors.However,biomarker-matched trials are still limited,and many of the genomic alterations remain difficult to target.To isolate the potential somatic hypermutational tumor from microsatellite instability low/microsatellite stability(MSI-L/MSS)cases,we employed two commercial kits to determine MSI and forensic short tandem repeat(STR)alternations in 250 gastrointestinal(GI)tumors.Three types of forensic STR alternations,namely,allelic loss,Aadd,and Anew,were identified.62.4%(156/250)of the patients with GI exhibited STR alternation,including 100%(15/15)and 60%(141/235)of the microsatellite high instability and MSI-L/MSS cases,respectively.30%(75/250)of the patients exhibited STR instability with more than 26.32%(26.32%–84.21%)STR alternation.The cutoff with 26.32%of the STR alternations covered all 15 MSI cases and suggested that it might be a potential threshold.Given the similar mechanism of the mutations of MSI and forensic STR,the widely used forensic identifier STR kit might provide potential usage for identifying hypermutational status in GI cancers.Anqi Chen Suhua Zhang Jixi Li Chaoneng Ji Jinzhong Chen Chengtao Li 2020Frontiers of Medicine2020,14,1:2
20双膦酸盐对骨转移癌骨痛治疗及血清钙磷影响(英文)显示文摘Objective: Bisphosphonates were widely used with the rate of malignant tumor with bone metastases increasing rapidly. The aim of this study was to evaluate zoledronic acid and pamidronic acid on treating ostealgia of malignant tumor with bone metastases and serum calcium, phosphorus and alkaline phosphorus movement. Methods: One Hundred cancer patients with bone metastases were diagnosed according to pathological and imaging methods. After zoledronic acid or pamidronic acid intravenous infusion one and two months, ostealgia degree, serum calcium, serum phosphorus and alkaline phosphorus were observed before bisphosphonates treatment, one and two months after treatment, respectively. Results: Ostealgia degree did not change significantly after diphosphonates treatment from one to two months (P > 0.05). The linear correlation between serum calcium and serum phosphorus on bone metastases cancer patients before therapy was dismissed after bisphosphonates treatment one month and did not recover in two months. The incidence of hypo-calcium after diphosphonate treatment one month (54%) and two months (56%) were significantly increased than that before treatment (36%) (χ2 = 6.55, P = 0.011; χ2 = 8.05, P = 0.005). Serum calcium and serum phosphorus were both decreased after treatment one month (t = 4.39, P = 0.000; t = 2.50, P = 0.014) and two months (t = 4.32, P = 0.000; t = 2.49, P = 0.010). There had no difference between zoledronic acid and pamidronic acid on treating of ostealgia and serum calcium and phosphorus changing. Conclusion: Zoledronic acid and pamidronic acid can relief ostealgia of cancer patients with bone metastases and induce hypo-calcium, break the linear relationship between calcium and phosphorus. There have no difference between zoledronic acid and pamidronic acid on treating ostealgia and inducing hypo-calcium and hypo-phosphorus.Yuedi Dai Meixing Wang Li Tao Anqi Li Haixia Wu Mi Xiao 2011The Chinese-German Journal of Clinical Oncology2011,10,6:2
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