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247篇 您的检索式:作者名="Zhigang Huang"
    题名 作者 年代 出处 被引量
1Temporospatial changes of carbon footprint based on energy consumption in China显示文摘地区性的碳排放上的学习是在全球气候变化和低碳的经济开发的背景下面的热话题之一,并且也帮助为不同区域建立不同低碳的策略。根据精力消费和在从 1999 ~ 2008 的中国的不同区域的陆地使用数据,这份报纸基于全部的精力消费建立了碳排放和碳脚印模型,并且从 1999 ~ 2008 在中国的不同区域计算了碳排出物和碳脚印的数量。作者也分析了碳排放密度并且每为每个区域统一区域碳脚印。最后,为减少的碳脚印的忠告被提出。主要结论如下:(1 ) 从全部的精力消费的碳排出物在中国从 1999 ~ 2008 增加了 129% ,但是它在不同区域之中的空间分发模式稍微就改变了排序排放数量是的碳:东方中国 > 北中国 > 中央、南部的中国 > 西南中国 > 西北中国。(2 ) 排序碳排放密度是:东方中国 > 东北中国 > 中央、南部的中国 > 北中国 > 西南中国 > 从 1999 ~ 2003,但是从 2004 中央、南部的中国的西北中国开始比东北中国有更高的碳排放密度,另外的区域的顺序没变化。(3 ) 自从从 1999 ~ 2008 的在中国的不同区域的碳排出物和生产土地的更少的增加的区域的快速的增加,碳脚印显著地增加了。北中国有最大的碳脚印,和西北中国,东方中国,北中国,中央、南部的中国接着列在后面,当西南中国介绍了碳脚印和碳吸收的最高的百分比的最低区域时。(4 ) 主要由地区性的陆地区域影响了,介绍的北中国每统一区域碳脚印最高、由东方中国,和东北中国跟随;中央、南部的中国,和西北中国每统一区域碳脚印有类似的媒介;总是有的西南中国每联合起来最低区域碳脚印。(5 ) 中国面对了碳排放带的大生态的压力。一些措施应该从减少碳排放和增加的碳吸收被花两个。CHUAI Xiaowei LAI Li HUANG Xianjin ZHAO Rongqin WANG Wanjing CHEN Zhigang 2012Journal of Geographical Sciences2012,22,1:23
2TRPV1 activation improves exercise endurance and energy metabolism through PGC-1α upregulation in mice显示文摘Zhidan Luo Liqun Ma Zhigang Zhao Hongbo He Dachun Yang Xiaoli Feng Shuangtao Ma Xiaoping Chen Tianqi Zhu Tingbing Cao Daoyan Liu Bernd Nilius Yu Huang Zhencheng Yan Zhiming Zhu 2012Cell Research2012,22,3:18
3Response of runoff and soil loss to reforestation and rainfall type in red soil region of southern China显示文摘To evaluate the long-term effects of reforestation types on soil erosion on degraded land, vegetation and soil properties under conventional sloping farmland (CSF) and three different reforestation types including a Pinus massoniana secondary forest (PSF), an Eucommia ulmoides artificial economic forest (EEF) and a natural succession type forest (NST), were investigated at runoff plot scale over a six-year period in a red soil region of southern China. One hundred and thirty erosive rainfall events generating runoff in plots were grouped into four rainfall types by means of K-mean clustering method. Erosive rainfall type I is the dominant rainfall type. The amount of runoff and the soil loss under erosive rainfall type III were the most, followed by rain-fall type II, IV and I. Compared with CSF treatment, reforestation treatments decreased the average annual runoff depth and the soil loss by 25.5%-61.8% and 93.9%- 96.2% during the study period respectively. Meanwhile, runoff depth at PSF and EEF treatments was significantly lower than that in NST treatment, but no significant difference existed in soil erosion modulus among the three reforestation treatments. This is mainly due to the improved vegetation properties (i.e., vegetation coverage, biomass of above- and below-ground and litter-fall mass) and soil properties (i.e., bulk density, total porosity, infiltration rate and organic carbon content) in the three reforestation treatments compared to CSF treatment. The PSF and EEF are recommended as the preferred reforestation types to control runoff and soil erosion in the red soil region of southern China, with the NST potentially being used as an important supplement.Zhigang Huang Zhiyun Ouyang Fengrui Li Hua Zheng Xiaoke Wang 2010Journal of Environmental Sciences2010,22,11:18
4A New Optimal Hatch Filter to Minimize the Effects of Ionosphere Gradients for GBAS显示文摘At present,the main problem faced by ground-based augment system (GBAS) is that though carrier smoothing filter and local dif-ferential global positioning system (LDGPS) improve the accuracy of the pseudorange by reducing the noise in it and eliminating almost all the common errors between the user and the reference station,they also cause extra errors on account of the effects of the ionosphere temporal and spatial gradients.Based on the analysis of these errors as well as the smoothing noise,this article suggests a new algorithm to design the optimal Hatch filter,whose smoothing window width varies real-time with the satellite elevation,ionosphere variation,and distance from the user to the reference station.By conducting the positioning process in the GBAS emulation platform for several hours and after its comparison with the performances of traditional Hatch filters,it is found that the errors in the differential correction become smaller and the positioning accuracy gets heightened with this new method.Huang Zhenggang Huang Zhigang Zhu Yanbo 2008Chinese Journal of Aeronautics2008,21,6:16
5Crustal stress field in Yunnan: implication for crust-mantle coupling显示文摘We applied the g CAP algorithm to determine239 focal mechanism solutions 3:0 M We 6:0T with records of dense Chin Array stations deployed in Yunnan,and then inverted 686 focal mechanisms(including 447 previous results) for the regional crustal stress field with a damped linear inversion. The results indicate dominantly strike-slip environment in Yunnan as both the maximum(r1) and minimum(r3) principal stress axes are sub-horizontal. We further calculated the horizontal stress orientations(i.e., maximum and minimum horizontal compressive stress axes: S H and S h, respectively) accordingly and found an abrupt change near *26°N. To the north, S H aligns NW-SE to nearly E-W while S h aligns nearly N-S. In contrast, to the south, both S H and S h rotate laterally and show dominantly fan-shaped patterns. The minimum horizontal stress(i.e., maximum strain axis) S h rotates from NW-SE to the west of Tengchong volcano gradually to nearly E-W in west Yunnan, and further toNE-SW in the South China block in the east. The crustal strain field is consistent with the upper mantle strain field indicated by shear-wave splitting observations in Yunnan but not in other regions. Therefore, the crust and upper mantle in Yunnan are coupled and suffering vertically coherent pure-shear deformation in the lithosphere.Zhigang Xu Zhouchuan Huang Liangshu Wang Mingjie Xu Zhifeng Ding Pan Wang Ning Mi Dayong Yu Hua Li 2016Earthquake Science2016,29,2:15
6Amino-functionalized poloxamer 407 with both mucoadhesive and thermosensitive properties:preparation, characterization and application in a vaginal drug delivery system显示文摘Lack of mucoadhesive properties is the major drawback to poloxamer 407(F127)-based in situ hydrogels for mucosal administration. The objective of the present study was to construct a novel mucoadhesive and thermosensitive in situ hydrogel drug delivery system based on an aminofunctionalized poloxamer for vaginal administration. First, amino-functionalized poloxamer 407(F127-NH2) was synthesized and characterized with respect to its micellization behavior and interaction with mucin. Then using acetate gossypol(AG) as model drug, AG-loaded F127-NH2-based in situ hydrogels(NFGs) were evaluated with respect to rheology, drug release, ex vivo vaginal mucosal adhesion, in vivo intravaginal retention and local irritation after vaginal administration to healthy female mice. The results show that F127-NH2 is capable of forming a thermosensitive in situ hydrogel with sustained drug release properties. An interaction between positively charged F127-NH2 and negatively charged mucin wasrevealed by changes in the particle size and zeta potential of mucin particles as well as an increase in the complex modulus of NFG caused by mucin. Ex vivo and in vivo fluorescence imaging and quantitative analysis of the amount of AG remaining in mouse vaginal lavage all demonstrated greater intravaginal retention of NFG than that of an unmodified F127-based in situ hydrogel. In conclusion, amino group functionalization confers valuable mucoadhesive properties on poloxamer 407.Liqian Ci Zhigang Huang Yu Liub Zhepeng Liu Gang Wei Weiyue Lu 2017Acta Pharmaceutica Sinica B2017,7,5:11
7Differentiation of embryonic stem cells into corneal epithelium显示文摘Our project was to determine whether embryonic stem (ES) cells could be induced to differentiate into corneal epithelia by superficial corneoscleral limbal stroma. To achieve this goal, ES-GFP cell line D3 was pre-induced by retinoic acid (RA). The pre-induced cells were seeded on deepithelialized superficial corneoscleral slices (SCSS) to form a monolayer, and di-vided into three groups. Group 1 was cultured and passaged in vitro for direct detection. Group 2 was exposed to air-liquid interfaces for 10 days and implanted into the subcutaneous layer of nude mice for 2 weeks for further induction in vivo. Group 3 was cultured in vitro without any in-ducing factors for control. There were no teratomas found in nude mice which were implanted with differentiated ES cells after two weeks. The differentiated cells showed an appearance of epithelia both in vitro and in vivo. Expression of CK3, P63 and PCNA was detected by immuno-histochemical staining in the differentiated cells in group 1 and 2. Microvillis and zonula oc-cludens were observed on the surface of the differentiated cells under an electron microscope. In the control group, ES cells differentiated freely without any inducing factors. Most cells were shed and formed a neuronal dendrite-like structure, and a minority of cells appeared polymorphic. These results demonstrate that ES cells can differentiate into corneal epithelia on the surface of SCSS under the controlled condition. Differentiated ES cells could be used as epithelial seeding cells for the reconstruction of ocular surface and corneal tissue engineering in the future.WANG Zhichong GE Jian HUANG Bing GAO Qianying LIU Bingqian WANG Linghua YU Ling FAN Zhigang LU Xiaoming LIU Jingbo 2005Science China(Life Sciences)2005,48,5:10
8Low-frequency E-field Detection Array(LFEDA)-Construction and preliminary results显示文摘In recent years, locating total lightning at the VLF/LF band has become one of the most important directions in lightning detection. The Low-frequency E-field Detection Array(LFEDA) consisting of nine fast antennas was developed by the Chinese Academy of Meteorological Sciences in Guangzhou between 2014 and 2015. This paper documents the composition of the LFEDA and a lightning-locating algorithm that applies to the low-frequency electric field radiated by lightning pulse discharge events(LPDEs). Theoretical simulation and objective assessment of the accuracy and detection efficiency of LFEDA have been done using Monte Carlo simulation and artificial triggered lightning experiment, respectively. The former results show that having a station in the network with a comparatively long baseline improves both the horizontal location accuracy in the direction perpendicular to the baseline and the vertical location accuracy along the baseline. The latter results show that detection efficiencies for triggered lightning flashes and return strokes are 100% and 95%, respectively. The average planar location error for return strokes of triggered lightning flashes is 102 m. By locating LPDEs in thunderstorms, we find that LPDEs are consistent with convective regions as indicated by strong reflectivity columns, and present a reasonable distribution in the vertical direction.In addition, the LFEDA can reveal an image of lightning development through mapping the channels of lightning. Based on three-dimensional locations, the vertical propagation speed of the preliminary breakdown and the changing trend of the leader's speed in an intra-cloud and a cloud-to-ground flash are investigated. The research results show that the LFEDA has the capability for three-dimensional location of lightning, which provides a new technique for researching lightning development characteristics and thunderstorm electricity.SHI DongDong ZHENG Dong ZHANG Yang ZHANG YiJun HUANG ZhiGang LU WeiTao CHEN ShaoDong YAN Xu 2017Science China Earth Sciences2017,60,10:10
9Ultrasound-Guided Transmuscular Quadratus Lumbar Block Reduces Opioid Consumption after Laparoscopic Partial Nephrectomy显示文摘Objectives Transmuscular quadratus lumborum block(TQLB)may provide postoperative analgesia in patients undergoing intraperitoneal surgeries.The purpose of this study was to examine the potential efficacy of TQLB among patients undergoing retroperitoneal procedures,such as the laparoscopic partial nephrectomy(LPN).Methods This prospective,randomized,controlled study was conducted from August 2017 to November 2018 at Peking Union Medical College Hospital(Beijing,China).Patients who were scheduled for a LPN,aged 18・70 years old with an ASA physical status score of I-II were randomly assigned to receive either TQLB with 0.6 ml/kg of 0.5%ropivacaine plus general anesthesia(TQLB group)or general anesthesia alone(control group).Patient-controlled intravenous analgesia with morphine was initiated immediately upon surgery completion.The primary outcome was the cumulative consumption of morphine within 8 h after surgery.The secondary outcome included postoperative consump廿ons of morphine at other time points,pain score at rest and during activity,postoperative nausa and vomitting(PONV),and recovery related parameters.Results Totally 30 patients per group were recruited in the study.The 8 h consumption of morphine was lower in theTQLB group than in the control group(median,0.023 mg/kg vs.0.068 mg/kg,U=207.5,P<0.001).No significant differences were observed in postoperative pain scores between the two groups.Patients in the TQLB group had fewer episodes of PONV(20%vs.47%,χ2=4.&P=0.028)in the first 24 h after surgery and higher scores for quality of recovery(mean,13&6 vs.131.9,t=-2.164,P=0.035)120 h after surgery than the controls.Conclusions TQLB resulted in an opioid-sparing effect during the early postoperative period following LPN,as well as a lower incidence of PONV and improved quality of recovery.Xulei Cui Xu Li Minna Li Yuelun Zhang Yi Xie Weigang Yan Yushi Zhang Zhigang Ji Yuguang Huang 2020Chinese Medical Sciences Journal2020,35,4:10
10Determination of both jasmonic acid and methyl jasmonate in plant samples by liquid chromatography tandem mass spectrometry显示文摘An efficient method for the simultaneous extraction and quantification of both jasmonic acid(JA)and methyl jasmonate(MeJA) from a single plant sample was developed.Plant tissues were firstly extracted by using 100%cold methanol,then the Sep-pak C18 solid-phase extraction(SPE)cartridges were adopted for the purification of sample extract,and finally JA and MeJA were determined by the liquid chromatography tandem mass spectrometry(LC-MS-MS)system.It was found that the accuracy was improved by using the extra standard for the estimation and correction of JA and MeJA losses in the extraction and purification process.The detection limits for JA and MeJA were 0.03 and 0.075 ng mL-1,respectively,and the average recovery rate of JA and MeJA was 92.48%and 94.30%.The method was found to be reproducible and selective,yielding well isolated and easily detectable peaks for both JA and MeJA and simplifying the time-consuming extraction and purification.High-performance liquid chromatography(HPLC)system was employed as the control detection method for the LC-MS-MS system.The two systems were compared in their specificity and accuracy.LIU Xia YANG YanLi LIN WanHuang TONG JianHua HUANG ZhiGang XIAO LangTao 2010Chinese Science Bulletin2010,55,21:10
11An improved empirical wavelet transform method for rolling bearing fault diagnosis显示文摘Empirical wavelet transform(EWT)based on the scale space method has been widely used in rolling bearing fault diagnosis.However,using the scale space method to divide the frequency band,the redundant components can easily be separated,causing the band to rupture and making it difficult to extract rolling bearing fault characteristic frequency effectively.This paper develops a method for optimizing the frequency band region based on the frequency domain feature parameter set.The frequency domain feature parameter set includes two characteristic parameters:mean and variance.After adaptively dividing the frequency band by the scale space method,the mean and variance of each band are calculated.Sub-bands with mean and variance less than the main frequency band are combined with surrounding bands for subsequent analysis.An adaptive empirical wavelet filter on each frequency band is established to obtain the corresponding empirical mode.The margin factor sensitive to the shock pulse signal is introduced into the screening of empirical modes.The empirical mode with the largest margin factor is selected to envelope spectrum analysis.Simulation and experiment data show this method avoids over-segmentation and redundancy and can extract the fault characteristic frequency easier compared with only scale space methods.HUANG HaiRun LI Ke SU WenSheng BAI JianYi XUE ZhiGang ZHOU Lang SU Lei PECHT Michael 2020Science China(Technological Sciences)2020,63,11:10
12Status and development of high-power laser facilities at the NLHPLP显示文摘In this paper, we review the status of the multifunctional experimental platform at the National Laboratory of High Power Laser and Physics(NLHPLP). The platform, including the SG-II laser facility, SG-II 9th beam, SG-II upgrade(SG-II UP) facility, and SG-II 5 PW facility, is operational and available for interested scientists studying inertial confinement fusion(ICF) and a broad range of high-energy-density physics. These facilities can provide important experimental capabilities by combining different pulse widths of nanosecond, picosecond, and femtosecond scales. In addition, the SG-II UP facility, consisting of a single petawatt system and an eight-beam nanosecond system, is introduced including several laser technologies that have been developed to ensure the performance of the facility. Recent developments of the SG-II 5 PW facility are also presented.Jianqiang Zhu Jian Zhu Xuechun Li Baoqiang Zhu Weixin Ma Xingqiang Lu Wei Fan Zhigang Liu Shenlei Zhou Guang Xu Guowen Zhang Xinglong Xie Lin Yang Jiangfeng Wang Xiaoping Ouyang Li Wang Dawei Li Pengqian Yang Quantang Fan Mingying Sun Chong Liu Dean Liu Yanli Zhang Hua Tao Meizhi Sun Ping Zhu Bingyan Wang Zhaoyang Jiao Lei Ren Daizhong Liu Xiang Jiao Hongbiao Huang Zunqi Lin 2018High Power Laser Science and Engineering2018,6,4:8
13Dynamics of Soil Moisture and Salt Content After Infiltration of Saline Ice Meltwater in Saline-Sodic Soil Columns显示文摘Saline ice meltwater can be used for irrigation and leaching of salts in salt-affected soil regions.A laboratory experiment was conducted using soil columns to investigate the redistribution of soil moisture, salt and sodium adsorption ratio(SAR) in saline-sodic soil under the infiltration of saline ice meltwater.Soils were treated using saline water of three irrigation volumes(1 600, 2 400 and 3 200 mL) at four salinity levels.These four salinity levels included salt free(0 g L^(-1)), low salinity level(1.4 g L^(-1)), moderate salinity level(2.7 g L^(-1)) and high salinity level(4.1 g L^(-1)).The prepared saline water was frozen into ice, and then the ice was put on the surface of soil columns.After 96 h, the infiltration rate and soil moisture content of saline ice treatments were greater than those of salt-free ice treatments, increasing with the increase of ice salinity.Infiltration of saline ice meltwater increased soil moisture content in the upper layers for all treatments.Both salt contents and SAR values in the upper soil layers decreased in all saline ice treatments and were lower than those in salt-free ice treatment.However, this trend was reversed in the deeper(below 20 cm) soil layers.The highest desalting rate and lowest SAR were observed in high-salinity treatment under three irrigation volumes in the 0–15 cm soil layer,especially under irrigation volume of 2 400 mL.These results indicate that saline ice(0–20 cm) meltwater irrigation is beneficial to saline-sodic soil reclamation, and the best improvement effect would be achieved when using high-salinity ice under optimal irrigation volume.XIAO Ye HUANG Zhigang YANG Fan WANG Zhichun ZHOU Xia LIU Zhijun 2017Pedosphere2017,27,6:8
14A User Differential Range Error Calculating Algorithm Based on Analytic Method显示文摘提高完整,有更少的执行时间的一个分析方法(AM ) 被建议计算微分范围错误(UDRE ) 由用户过去常检测潜在的风险的用户。位置推算历和钟修正计算方法首先被介绍。它证明计算 UDRE 的最重要的事情是在服务体积发现最糟的用户地点(WUL ) 。然后,用 AM 的一个 UDRE 算法被描述解决这个问题。由使用错误向量的协变性矩阵,寻找 WUL 被变换成一个分析几何学问题。WUL 的地点能被数学推导直接获得。实验被进行比较在建议 AM 算法和在主人车站使用的彻底的格子搜索(EGS ) 方法之间的表演。AM 算法的正确性能被 EGS 方法和 AM 算法证明的结果表演能在超过 90% 减少计算时间。这个建议算法的计算复杂性从而比 EGS. 的好这个算法对在主人车站计算 UDRE 更合适。SHAO Bo LIU Jiansheng ZHAO Ruibin HUANG Zhigang LI Rui 2011Chinese Journal of Aeronautics2011,24,6:7
15Evaluation of GNSS Signal-in-Space Continuity:A Weibull-Distribution-Based Method显示文摘Signal-in-space(SIS) continuity is an important performance index of Global navigation satellite system(GNSS). However, the studies on the continuity of GNSS SIS are limited both at home and abroad, and are mainly based on the exponential distribution method. We first employ this method to analyze SIS failures of GPS and BDS, finding that this method is not flexile when describing the characteristic of GNSS SIS failures and the fitting characteristic of this method is not well. Therefore, we propose a method based on Weibull distribution to evaluate the performance of GNSS SIS continuity. Our method is compared with the models of exponential distribution, normal distribution, and Gamma distribution regarding the fitting characteristics of the interruption time interval of GPS SIS, the critical parameter of continuity. Results show that the fitting characteristic of the Weibull-distributionbased method is the best and can be used in various forms to describe reliability problem. Then our method is used to evalute the SIS continuity of BDS and GLONASS and its effectiveness and rationality are validated again. The contributions of our study lie in the development of a practical method for evaluating GNSS SIS continuity and a reference for GNSS performance.LI Rui ZHENG Shuaiyong WANG Zhipeng TANG Yang SUN Si HUANG Zhigang 2018Chinese Journal of Electronics2018,27,3:6
16Component characteristics of organic matter in hydrothermal barnacle shells from Southwest Indian Ridge显示文摘In 2008–2009,hydrothermal barnacle and sediment samples were collected from the Southwest Indian Ridge during a survey of the China Ocean Mineral Resources R&D Association(COMRA).Samples were analyzed by gas chromatography-mass spectrometer(GC-MS),revealing the main organic constituents of hydrothermal barnacle and sediment to be fatty acids and alkylbenzenes.N-alkanes which possessed obvious even carbon advantage were also detected in hydrothermal sediment.The high concentrations of aromatic compounds might be the result of macromolecular thermal alteration.Microorganism in the submarine hydrothermal ecosystem,especially those related to sulfur metabolism,might be the source of the high concentrations of fatty acids detected in these samples.In high temperature and high pressure hydrothermal environments,n-alkanes which possessed obvious even carbon advantage might originate from thermal alteration of carboxylic acids and other lipid compounds.HUANG Xin ZENG Zhigang CHEN Shuai YIN Xuebo WANG Xiaoyuan ZHAO Huijing YANG Baoju RONG Kunbo MA Yao 2013Acta Oceanologica Sinica2013,32,12:6
17Additive manufacturing of CNTs/PLA composites and the correlation between microstructure and functional properties显示文摘Owing to the facile,low cost,rapid,personalization characters,3D printing method has been one of the most attractive additive manufacturing processes in medicine,airplane,packaging and printing areas.In this work,a series of carbon nanotubes/polylactic acid(CNTs/PLA) composites were prepared through the combination of molten co-extrusion and 3D printing processes.The orientation and dispersion of CNTs in PLA matrix were investigated to explore the impact of 3D printing process on the morphology of CNTs/PLA composites via transmission electron microscopy,field emission scanning electron microscopy and Raman spectroscopy.X-ray diffractometer,differential scanning calorimetry,and thermal gravity analysis were employed to study the crystal structure and thermal properties of the composites.In addition,the electrical conductivity of the prepared specimen revealed that the orientation of CNTs in PLA might enhance the conductivity of the composite.It was found that 3D printing process was beneficial to increasing the purity of CNTs,electrical conductivity and mechanical properties of CNTs/PLA composites.Xing Zhou Jingrui Deng Changqing Fang Wanqing Lei Yonghua Song Zisen Zhang Zhigang Huang Yan Li 2021Journal of Materials Science & Technology2021,,1:6
18Adipocyte-derived SFRP5 inhibits breast cancer cells migration and invasion through Wnt and epithelial-mesenchymal transition signaling pathways显示文摘Objective:Obesity is closely associated with metastasis in breast cancer patients.Secreted frizzled-related protein 5(SFRP5),one of the novel adipokines with anti-inflammatory properties,is associated with obesity.This study aims to study the role of SFRP5 in the crosstalk between obesity and breast cancer metastasis and identify the underlying mechanism.Methods:3T3-L1 pre-adipocytes were differentiated to mature adipocytes and a hypertrophic adipocyte model was induced with palmitic acid(PA).Cell motility was measured in MDA-MB-231 and MCF-7 breast cancer cells co-cultured with adipocytes conditioned medium(CM)with or without SFRP5 protein.Wnt and epithelialmesenchymal transition(EMT)signal pathways were investigated by western blot.Circulating SFRP5 level in 218 breast cancer patients and the association with clinicopathologic characteristics of breast cancer were further determined.Online databases ENCORI and PREDICT Plus were used to exam the link between SFRP5 and prognosis.Results:Reduced SFRP5 level was detected in the hypertrophic adipocyte model.Recombinant SFRP5 protein inhibited MDA-MB-231 and MCF-7 cells invasion and migration induced by PA-treated adipocyte CM,and SFRP5 inhibition by specific antibody reversed the effect of SFRP5.Furthermore,SFRP5 significantly inhibited Wnt and downstream EMT in breast cancer cells.Low circulating SFRP5 level correlated with body mass index(BMI),lymph node(LN)metastasis,TNM stage and high Ki67 expression in breast cancer patients.Increased SFRP5 level was associated with favorable predicted survival.Kaplan-Meier curves showed high SFRP5 level in tumor tissue was associated with better outcome of breast cancer patients.Conclusions:Our findings demonstrated SFRP5 is a vital adipokine that mediates the crosslink between obesity and the metastatic potential of breast cancer.Promotion of SFRP5 expression in the adipose microenvironment may represent a novel approach for preventing breast cancer metastasis.Wenzhong Zhou Chunmiao Ye Liang Li Liyuan Liu Fei Wang Lixiang Yu Fei Zhou Yujuan Xiang Yongjiu Wang Gengshen Yin Zhongbing Ma Qinye Fu Qiang Zhang Dezong Gao Shuya Huang Zhigang Yu 2020Chinese Journal of Cancer Research2020,32,3:5
19Preparation and Characterization of Waterborne Polyurethane/Cellulose Nanocrystal Composite Membrane from Recycling Waste Paper显示文摘Cellulose plays a key role in abundant organic natural materials meeting the increasing demand for green and biocompatible products.The highly crystalline nanoscale component of cellulose nanocrystals has recently attracted great attention due to the versatile performance as filler or matrix in producing functional materials.In this work,we prepared the waterborne polyurethane via a prepolymer process,and obtained cellulose and cellulose nanocrystals from waste paper via a facile acid hydrolysis process.After that,the cellulose nanocrystals were assembled into film and mixed with polyurethane to prepare flexible polyurethane/cellulose nanocrystals composite membrane with different soaking time.The correlation between the bulk structure and applied properties including thermal resistance and mechanical property was investigated by using Fourier transform infrared spectroscopy(FTIR),X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),scanning electron microscopy(SEM),thermogravimetric analysis(TGA),differential scanning calorimetry(DSC)and folding test.The structure analysis indicates that cellulose nanocrystals prepared from used paper have a quality similar to that of commercial cellulose.Meanwhile,the cellulose nanocrystals have been mixed with polyurethane uniformly.Polyurethane can significantly benefit to the thermal resistance and mechanical property of the cellulose nanocrystals film.The polyurethane/cellulose nanocrystals composite membrane present good flexibility and may hold a significantly potential application as visual and flexible material.Xing Zhou Xin Zhang Dong Wang Changqing Fang Wanqing Lei Zhigang Huang Yonghua Song Xinyu He Yingwei Huang 2020Journal of Renewable Materials2020,8,6:5
20The alteration in the architecture of a T-DNA insertion rice mutant osmtd1 is caused by up-regulation of Micro RNA156f显示文摘Plant architecture is an important factor for crop production. Some members of micro RNA156(mi R156) and their target genes SQUAMOSA Promoter-Binding Protein-Like(SPL) were identi fi ed to play essential roles in the establishment of plant architecture. However, the roles and regulation of mi R156 is not well understood yet. Here, we identi fi ed a T-DNA insertion mutant Osmtd1(Oryza sativa multi-tillering and dwarf mutant). Osmtd1 produced more tillers and displayed short stature phenotype. We determined that the dramatic morphological changes were caused by a single T-DNA insertion in Osmtd1. Further analysis revealed that the T-DNA insertion was located in the gene Os08g34258 encoding a putative inhibitor I family protein. Os08g34258 was knocked out and Osmi R156 f was signi fi cantly upregulated in Osmtd1. Overexpression of Os08g34258 in Osmtd1 complemented the defects of the mutant architecture, while overexpression of Osmi R156 f in wild-type rice phenocopied Osmtd1. We showed that the expression of Os SPL3, Os SPL12,and Os SPL14 were signi fi cantly downregulated in Osmtd1 or Osmi R156 f overexpressed lines, indicating that Os SPL3,Os SPL12, and Os SPL14 were possibly direct target genes of Osmi R156 f. Our results suggested that Osmi R156 f controlledplant architecture by mediating plant stature and tiller outgrowth and may be regulated by an unknown protease inhibitor I family protein.Qing Liu Gezhi Shen Keqin Peng Zhigang Huang Jianhua Tong Mohammed Humayun Kabir Jianhui Wang Jingzhe Zhang Genji Qin Langtao Xiao 2015Journal of Integrative Plant Biology2015,57,10:5
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