|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Hepatic artery infusion chemotherapy using mFOLFOX versus transarterial chemoembolization for massive unresectable hepatocellular carcinoma:a prospective non.randomized study显示文摘Background: Transarterial chemoembolization(TACE) is recommended as the standard care for unresectable hepatocellular carcinoma(HCC) at Barcelona Clinic Liver Cancer(BCLC) stage A-B. However, the efficacy of TACE on large(> 10 cm) stage A-B HCC is far from satisfactory, and it is proposed that hepatic artery infusion chemotherapy(HAIC)might be a better first-line treatment of this disease. Hence, we compared the safety and efficacy of HAIC with the modified FOLFOX(mFOLFOX) regimen and those ofTACE in patients with massive unresectable HCC.Methods: A prospective, non-randomized, phase II study was conducted on patients with massive unresectable HCC. The protocol involved HAIC with the mFOLFOX regimen(oxaliplatin, 85 mg/m^2 intra-arterial infusion; leucovorin,400 mg/m^2 intra-arterial infusion; and fluorouracil, 400 mg/m2 bolus infusion and 2400 mg/m^2 continuous infusion)every 3 weeks and TACE with 50 mg of epirubicin, 50 mg of lobaplatin, 6 mg of mitomycin, and lipiodol and polyvinyl alcohol particles. The tumor responses, time-to-progression(TTP), and safety were assessed.Results: A total of 79 patients were recruited for this study: 38 in the HAIC group and 41 in the TACE group. The HAIC group exhibited higher partial response and disease control rates than did the TACE group(52.6% vs. 9.8%, P < 0.001;83.8% vs. 52.5%, P = 0.004). The median TTPs for the HAIC and TACE groups were 5.87 and 3.6 months(hazard radio[HR] = 2.35,95% confidence interval [CI] = 1.16-4.76, P = 0.015). More patients in the HAIC group than in the TACE group underwent resection(10 vs. 3,P = 0.033). The proportions of grade 3-4 adverse events(AE) and serious adverse events(SAE) were lower in the HAIC group than in the TACE group(grade 3-4 AEs: 13 vs. 27, P = 0.007;SAEs: 6 vs. 15,p = 0.044). More patients in the TACE group than in the HAIC group had the study treatment terminated early due to intolerable treatment-related adverse events or the withdrawal of consent(10 vs. 2,P = 0.026).Conclusions: HAIC with mFOLFOX yielded significantly better treatment responses and less serious toxicity than did TACE. HAIC might represent a feasible and promising first-line treatment for patients with massive unresectable HCC. | Min-Ke He Yong Le Qi-Jiong Li Zi-Shan Yu Shao-Hua Li Wei Wei Rong-Ping Guo Ming Shi | 2017 | Chinese Journal of Cancer2017,36,12: | 95 |
| 2 | 基于IMRT时代的第八版AJCC/UICC鼻咽癌临床分期建议显示文摘目的准确的分期系统对癌症的治疗至关重要。随着癌症分期和治疗方法的演变,需要不断评价分期的适用性和改进性。方法基于第7版AJCC/UICC分期回顾性分析香港和中国大陆2个肿瘤中心收治的1609例接受调强放射治疗的首诊无转移鼻咽癌患者临床资料,所有患者治疗前均行核磁共振分期评估。结果无其他T3、T4期解剖结构受侵患者中,伴有咀嚼肌间隙(翼内肌和/或翼外肌)侵犯、椎前肌侵犯及咽旁间隙侵犯的三组患者之间0s相近。伴广泛软组织(上述侵犯结构以外的软组织)受侵患者OS与伴有颅内侵犯或颅神经侵犯相似。仅2%患者锁骨上窝以上淋巴结转移者直径〉6cm,其0s率与下颈淋巴结转移者类似。用下颈(环状软骨尾侧缘水平以下)代替锁骨上窝并不影响N分期之间的风险差异性。采用推荐的T、N分期,T。N。、T。N,期0s相近。结论经AJCC/UICC分期筹备委员会审阅后,建议第8版分期应将翼内肌/翼外肌从T。降到T:期,增加椎前肌为L期,用下颈取代锁骨上窝,将淋巴结最大直径〉6cm合并归为N,期,将T。、N,期统一归为Ⅳ。期。这些改变不仅使得相邻分期间风险差异性更好,而且使得临床实践性与全球适用性之间达到最佳平衡。 | 潘建基 Wai Tong Ng 宗井凤 Lucy L.K.Chan Brian O' Sullivan 林少俊 Henry C.K.Sze 陈韵彬 Horace C.W.Choi 郭巧娟 Wai Kuen Kan 肖友平 Xu Wei Quynh Thu Le Christine M.Glastonbury A.Dimtrios Colevas Randal S.Weber Jatin P.Shah Anne W.M.Lee | 2016 | 中华放射肿瘤学杂志2016,25,3: | 65 |
| 3 | Association of serum uric acid levels with the progression of Parkinson's disease in Chinese patients显示文摘背景尿酸( UA )被怀疑在 Parkinson .This 学习试图评估浆液 UA 水平是否在中国 patients.Methods 浆液 UA 层次的一张相对大的人口与 PD 的疾病前进被联系的疾病( PD )起一个neuro保护的作用从 411 个中国 PD 病人被测量并且 396 匹配年龄的控制;跟随尿酸比色的方法,浆液 creatinine (Scr ) 层次也被测量减少可能的差别在肾的排泄 function.The 引起的偏爱疾病前进被 Hoehn 和 Yahr (H&Y ) 规模和疾病持续时间获得; PD 组根据 H&Y scales.Independent样品 ttest 被划分成 3 亚群被执行分析 PD 组之间的差别,协变性的控制 group.Multiple 分析被执行分析 PD subgroups.Spearman 等级关联之间的差别被执行评估在水平和疾病 progression.Results PD 病人被发现的浆液 UA 或 Scr 之间的协会显著地比控制有浆液 UA 的底层(( 243. | Sun Cong-cong Luo Fei-fei Wei Lei Lei Mi Li Guo-fei Liu Zhuo-lin Le Wei-dong Xu Ping-yi | 2012 | Chinese Medical Journal2012,,4: | 43 |
| 4 | A Novel QTL qTGW3 Encodes the GSK3/ SHAGGY-Like Kinase OsGSK5/OsSK41 that Interacts with OsARF4 to Negatively Regulate Grain Size and Weight in Rice显示文摘谷物尺寸和形状在米饭是谷物重量和产量的重要决定因素。这里,我们报导一个新主要量的特点在米饭的地点(QTL ) , qTGW3,那种控制谷物尺寸和重量。这个地点, qTGW3,编码 OsSK41 (也作为 OsGSK5 知道) , GLYCOGEN SYNTHASE KINASE 3/SHAGGY-like 家庭的一个成员。带 OsSK41 的 loss-of-function 等位基因的瑞斯 near-isogenic 线增加了谷物长度和重量。我们证明那 OsSK41 交往与并且 phosphorylates 植物生长素反应因素 4 (OsARF4 ) 。有 OsARF4 的 OsSK41 的合作表示在米饭原物增加 OsARF4 的累积。OsARF4 的功能的损失导致更大的米饭谷物。定序 RNA 分析建议 OsARF4 和 OsSK41 镇压下游的基因的一个普通集合的表示, ? 包括一些植物生长素应答的基因,在米饭谷物开发期间。在 qTGW3 的 OsSK41 的 loss-of-function 形式代表没被指向的基因编辑或 QTL 节节上升广泛地在 OsSK41 功能的米饭 breeding.?Suppression 利用了的稀罕等位基因提高米饭谷物尺寸和重量。因此,我们的学习在米饭谷物开发揭示 OsSK41 的重要角色 ?? 并且在另外的谷物庄稼在米饭并且也许为谷物产量的基因改进提供新候选人基因。 | Zejun Hu Sun-Jie Lu Mei-Jing Wang Haohua He Le Sun Hongru Wang Xue-Huan Liu Ling Jiang Jing-Liang sun Xiaoyun Xin Wei Kong Chengcai Chu Hong-Wei Xue Jinshui Yang Xiaojin Luo Jian-Xiang Liu | 2018 | Molecular Plant2018,11,5: | 47 |
| 5 | Piriformospora indica confers drought tolerance on Zea mays L.through enhancement of antioxidant activity and expression of drought-related genes显示文摘Drought stress is one of the most severe environmental constraints to plant growth and crop productivity. Plant growth is greatly affected by drought stress, and plants, to survive,adapt to this stress by invoking different pathways. Piriformospora indica, a root-colonizing endophytic fungus of Sebacinales, promotes plant growth and confers resistance to biotic and abiotic stresses, including drought stress, by affecting the physiological properties of the host plant. The fungus strongly colonizes the roots of maize(Zea mays L.) and promotes shoot and root growth under both normal growth conditions and drought stress. We used polyethylene glycol(PEG-6000) to mimic drought stress and found that root fresh and dry weight, leaf area, SPAD value, and leaf number were increased in P. indica-colonized plants.The antioxidative activities of catalases and superoxide dismutases were upregulated within 24h in the leaves of P. indica-colonized plants. Drought-related genes DREB2A, CBL1,ANAC072, and RD29A were upregulated in drought-stressed leaves of P. indica-colonized plants. Furthermore, after drought treatment, proline content increased, whereas accumulation of malondialdehyde(MDA), an indicator of membrane damage, decreased in P. indica-colonized maize. We conclude that P. indica-mediated plant protection against the detrimental effects of drought may result from enhanced antioxidant enzyme activity,proline accumulation, and expression of drought-related genes and lower membrane damage in maize plants. | Le Xu Aiai Wang Jun Wang Qiao Wei Wenying Zhang | 2017 | The Crop Journal2017,5,3: | 17 |
| 6 | Minimally invasive surgery alone compared with intensity-modulated radiotherapy for primary stage I nasopharyngeal carcinoma显示文摘Background:The National Comprehensive Cancer Network guidelines recommend intensity-modulated radiotherapy(IMRT)as the primary curative treatment for newly diagnosed nasopharyngeal carcinoma(NPC),but the radiation-related complications and relatively high medical costs remain a consequential burden for the patients.Endoscopic nasopharyngectomy(ENPG)was successfully applied in recurrent NPC with radiation free and relatively low medical costs.In this study,we examined whether ENPG could be an effective treatment for localized stage I NPC.Methods:Ten newly diagnosed localized stage I NPC patients voluntarily received ENPG alone from June 2007 to September 2017 in Sun Yat-sen University Cancer Center.Simultaneously,the data of 329 stage I NPC patients treated with IMRT were collected and used as a reference cohort.The survival outcomes,quality of life(QOL),and medical costs between two groups were compared.Results:After a median follow-up of 59.0 months(95%CI 53.4-64.6),no death,locoregional recurrence,or distant metastasis was observed in the 10 patients treated with ENPG.The 5-year overall survival,local relapse-free survival,regional relapse-free survival,and distant metastasis-free survival among the ENPG-treated patients was similar to that among the IMRT-treated patients(100%vs.99.1%,100%vs.97.7%,100%vs.99.0%,100%vs.97.4%,respectively,P>0.05).In addition,compared with IMRT,ENPG was associated with decreased total medical costs($4090.42±1502.65 vs.$12620.88±4242.65,P<0.001)and improved QOL scores including dry mouth(3.3±10.5 vs.34.4±25.8,P<0.001)and sticky saliva(3.3±10.5 vs.32.6±23.3,P<0.001).Conclusions:ENPG alone was associated with promising long-term survival outcomes,low medical costs,and satisfactory QOL and might therefore be an alternative strategy for treating newly diagnosed localized stage I NPC patients who refused radiotherapy.However,the application of ENPG should be prudent,and prospective clinical tri-als were needed to further verify the results. | You-Ping Liu Xing Lv Xiong Zou Yi-Jun Hua Rui You Qi Yang Le Xia Shao-Yan Guo Wen Hu Meng-Xia Zhang Si-Yuan Chen Mei Lin Yu-Long Xie Li-Zhi Liu Rui Sun Pei-Yu Huang Wei Fan Xiang Guo Ming-Huang Hong Ming-Yuan Chen | 2019 | Cancer Communications2019,39,1: | 17 |
| 7 | Trend analysis of cancer incidence and mortality in China显示文摘The National Central Cancer Registry of China(NCCRC)updated their nationwide statistics of cancer incidence and mortality in China according to 2013 population-based cancer registration data(due to the time required for data collection,quality control and analysis,the latest cancer statistics available in China have a 3-year lag behind the current year).In this report,the NCCRC provides a comprehensive review of cancer incidence and mortality rates,as well as the statistics overall and by geographical area,cancer sites or age groups(Chen et al.,2017a).It shows that the burden of cancer | Fang Wei Yingfen Wu Le Tang Fang Xiong Can Guo Xiayu Li Ming Zhou Bo Xiang Xiaoling Li Guiyuan Li Wei Xiong Zhaoyang Zeng | 2017 | Science China(Life Sciences)2017,60,11: | 16 |
| 8 | Enhanced rectification, transport property and photocurrent generation of multilayer ReSe2/MoS2 p-n heterojunctions显示文摘 | Xiaoting Wang Le Huang Yuting Peng Nengjie Huo Kedi Wu Congxin Xia Zhongming Wei Sefaattin Tongay Jingbo Li | 2016 | Nano Research2016,9,2: | 16 |
| 9 | The estimate of sea ice resources quantity in the Bohai Sea based on NOAA/AVHRR data显示文摘The research on sea ice resources is the academic base of sea ice exploitation in the Bohai Sea. According to the ice-water spectrum differences and the correlation between ice thickness and albedo, this paper comes up with a sea ice thickness inversion model based on the NOAA/AVHRR data. And then a sea ice resources quantity (SIQ) time series of Bohai Sea is established from 1987 to 2009. The results indicate that the average error of inversion sea ice thickness is below 30%. The maximum sea ice resources quantity is about 6 × 10 9 m 3 and the minimum is 1.3 × 10 9 m 3 . And a preliminary analysis has been made on the errors of the estimate of sea ice resources quantity (SIQ). | YUAN Shuai GU Wei XU Yingjun WANG Ping HUANG Shuqing LE Zhangyan CONG Jianou | 2012 | Acta Oceanologica Sinica2012,31,1: | 15 |
| 10 | Annual 30-m land use/land cover maps of China for 1980–2015 from the integration of AVHRR, MODIS and Landsat data using the BFAST algorithm显示文摘Annual land use land cover(LULC)change information at medium spatial resolution(i.e.at 30 m)is required in numerous subjects,such as biophysical modelling,land management and global change studies.Annual LULC information,however,is usually not available at continental or national scale due to reasons such as insufficient remote sensing data coverage or lack of computational capabilities.Here we integrate high temporal resolution and coarse spatial resolution satellite images(i.e.,Moderate Resolution Imaging Spectroradiometer(MODIS)and Global Inventory Modelling and Mapping Studies(GIMMS)normalized difference vegetation index(NDVI))with high spatial resolution datasets(China’s Land-Use/cover Datasets(CLUDs)derived from 30-meter Landsat TM/ETM+/OLI)to generate reliable annual nominal 30 m LULC maps for the whole of China between 1980 and 2015.We also test the performance of a statistical based change detection algorithm(Breaks for Additive Seasonal and Trend),originally designed for tracking forest change,in classifying all-type LULC change.As a result,a nominal 30 m annual land use/land cover datasets(CLUD-A)from 1980 to 2015 was developed for the whole China.The mapping results were assessed with a change sample dataset,a regional annual validation sample set and a three-year China sample set.Of the detected change years,75.61%matched the exact time of conversion within±1 year.Annual mapping results provided a detail process of urbanization,deforestation,afforestation,water and cropland dynamics over the past 36 years.The consistent characterization of land change dynamics for China can be further used in scientific research and to support land management for policy-makers. | Yidi XU Le YU Dailiang PENG Jiyao ZHAO Yuqi CHENG Xiaoxuan LIU Wei LI Ran MENG Xinliang XU Peng GONG | 2020 | Science China Earth Sciences2020,63,9: | 12 |
| 11 | Spatial transcriptomic survey of human embryonic cerebral cortex by single-cell RNA-seq analysis显示文摘人的大脑开发的细胞的复杂性强烈地被调查了,尽管全部人的服的外皮的地区性的描述没基于单个房间的 transcriptome 分析被报导。这里,我们从人的中间怀孕期的胚胎的 22 个大脑区域在超过 4,000 个单个房间上执行了 RNA-seq。我们识别了 29 房间亚簇,它证明在每个区域和脑桥的不同比例显示出星形细胞的特别高的百分比。胚胎的神经原不象成年神经原一样多样,尽管他们在成年人拥有了他们的命运的重要特征。神经原开发是在服的外皮的 unsynchronized,当背面的区域看起来比在这个阶段的腹的区域更成熟。区域特定的基因包括地在每 neuronal 亚簇被识别,并且这些基因的一个大比例是联系的神经疾病。我们的结果介绍区域化的基因表示的一处系统的风景和人的服的外皮的神经原成熟。 | Xiaoying Fan Ji Dong Suijuan Zhong Yuan Wei Qian Wu Liying Yan Jun Yong Le Sun Xiaoye Wang Yangyu Zhao Wei Wang Jie Yan Xiaoqun Wang Jie Qiao Fuchou Tang | 2018 | Cell Research2018,28,7: | 11 |
| 12 | Psychological impact of the COVID-19 pandemic on healthcare workers:a cross-sectional study in China显示文摘Background Healthcare workers fighting against the coronavirus disease 2019(COVID-19)pandemic are under tremendous pressure,which puts them at an increased risk of developing psychological problems.Aims This study aimed to investigate the prevalence of psychological problems in different healthcare workers(ie,physicians,medical residents,nurses,technicians and public health professionals)during the COVID-19 pandemic in China and explore factors that are associated with the onset of psychological problems in this population during this public health crisis.Methods A cross-sectional,web-based survey was conducted in February 2020 among healthcare workers during the COVID-19 pandemic.Psychological problems were assessed using the Generalized Anxiety Disorder Scale,Patient Health Questionnaire and Insomnia Severity Index.Logistic regression analyses were used to explore the factors that were associated with psychological problems.Results The prevalence of symptoms of anxiety,depression,insomnia and the overall psychological problems in healthcare workers during the COVID-19 pandemic in China was 46.04%,44.37%,28.75%and 56.59%,respectively.The prevalence of the overall psychological problems in physicians,medical residents,nurses,technicians and public health professionals was 60.35%,50.82%,62.02%,57.54%and 62.40%,respectively.Compared with healthcare workers who did not participate in front-line work,front-line healthcare workers had a higher risk of anxiety,insomnia and overall psychological problems.In addition,attention to negative or neutral information about the pandemic,receiving negative feedback from families and friends who joined front-line work,and unwillingness to join front-line work if given a free choice were three major factors for these psychological problems.Conclusions Psychological problems are pervasive among healthcare workers during the COVID-19 pandemic.Receiving negative information and participating in front-line work appear to be.important risk factors for psychological problems.The psychological health of different healthcare workers should be protected during the COVID-19 pandemic with timely interventions and proper information feedback. | Jianyu Que Le Shi Jiahui Deng Jiajia Liu Li Zhang Suying Wu Yimiao Gong Weizhen Huang Kai Yuan Wei Yan Yankun Sun Maosheng Ran Yanping Bao Lin Lu | 2020 | General Psychiatry2020,33,3: | 8 |
| 13 | Design and experimental study of a practical Osculating Inward Cone Waverider Inlet显示文摘A design method based on tip to tail streamline tracing and osculating inward cone methods is discussed for designing the integrated Osculating Inward Cone Waverider Inlet(OICWI). A practical geometrical constrained experimental model of OICWI is designed based on the validated design method. It has a total contraction ratio of 4.61 and inner contraction ratio is 2.0. Wind-tunnel tests have been conducted for the OICWI model at free stream Mach number(Ma_∞) of 4.0, 3.5 and 3.0 respectively. The experimental results show that the OICWI has high flow capture ratio and compression abilities. It can self-start at Ma_∞= 3.5 and 4.0 and its flow capture ratio is 0.73 at Ma_∞= 4.0, and Angle of Attack(AOA) 0°. The research results show that the OICWI has advantages of inward cone waverider and streamline tracing inlet. Present OICWI is a novel approach for waverider inlet integration studies and it will promote the use of waverider inlet integration configuration in the studies of airbreathing hypersonic vehicles. | He Xuzhao Zhou Zheng Qin Si Wei Feng Le Jialing | 2016 | Chinese Journal of Aeronautics2016,29,6: | 8 |
| 14 | The value of color Doppler ultrasonography in monitoring normal orthotopic liver transplantation and postoperative complications显示文摘OBJECTIVE: To assess the value of color Doppler ultrasonography in monitoring normal orthotopic livertransplantation and postoperative complications.METHODS: Forty-one patients after orthotopic liver transplantation were examined by using colorDoppler flow imaging to observe the hepatic blood flow and change of ultrasonography of the hepaticparenchyma and bile duct. The measured indexes included maximum blood flow velocity, time-averageblood flow velocity (TAV), resistance index (RI) and diameter of the bile duct.RESULTS: Among 41 patients, 17 (41.5%) suffered from liver transplant rejection. Of the 17patients, 13 (76.4%) showed decrease of TAV of the portal vein, 15 (88.25%) low-amplitudesingle-phase serrated wave or negative biphasic wave of the hepatic vein, 9 (52.9%) increased hepaticarterial RI, and 5 (29.4%) slightly dilated bile duct. Sonography showed disappearance of the hepaticartery blood flow around the portal vein in 5 (12.2%) of the 41 patients with hepatic artery thrombosisin the postoperative period. Slight dilatation of the intrahepatic bile duct was found in 3 (7.3%) of the41 patients in the early postoperational period and it normalized within 2 weeks. Ultrasonography of20 patients (48.8%) revealed a visible dilatation of the intrahepatic bile duct, which was worseninggradually. The causes of bile duct dilatation included biliary stricture in 2 patients (10%), stone in 15patients (75%) and others in 3 patients (15%).CONCLUSIONS: Color Doppler ultrasonography is valuable for monitoring normal liver transplantationand postoperative complications. | Dao-Zhong Huang Gui-Rong Le Qing-Ping Zhang Kai-Yan Li Qi-Fa Ye Wei Zhu Yun-Chao Chen the Department of Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China | 2003 | Hepatobiliary & Pancreatic Diseases International2003,2,1: | 7 |
| 15 | A Resource for Inactivation of MicroRNAs Using Short Tandem Target Mimic Technology in Model and Crop Plants显示文摘microRNAs (miRNAs)are endogenous small non-coding RNAs that bind to mRNAs and target them for cleavage and/or translational repression,leading to gene silencing.We previously developed short tandem target mimic (STTM)technology to deactivate endogenous miRNAs in Arabidopsis.Here,we created hundreds of STTMs that target both conserved and species-specific miRNAs in Arabidopsis,tomato,rice,and maize,providing a resource for the functional interrogation of miRNAs.We not only revealed the functions of several miRNAs in plant development,but also demonstrated that tissue-specific inactivation of a few miRNAs in rice leads to an increase in grain size without adversely affecting overall plant growth and development.RNA-seq and small RNAseq analyses of STTM156/157 and STTM165/166 transgenic plants revealed the roles of these miRNAs in plant hormone biosynthesis and activation,secondary metabolism,and ion-channel activity-associated electrophysiology,demonstrating that STTM technology is an effective approach for studying miRNA functions.To facilitate the study and application of STTM transgenic plants and to provide a useful platform for storing and sharing of information about miRNA-regulated gene networks,we have established an online Genome Browser (https://blossom.ffr.mtu.edu/designindex2.php) to display the transcriptomic and miRNAomic changes in STTMinduced miRNA knockdown plants. | Ting Peng Mengmeng Qiao Haiping Liu Sachin Teotia Zhanhui Zhang Yafan Zhao Bobo Wang Dongjie Zhao Lina Shi Cui Zhang Brandon Le Kestrel Rogers Chathura Gunasekara Haitang Duan Yiyou Gu Lei Tian Jinfu Nie Jian Qi Fanrong Meng Lan Huang Qinghui Chen Zhenlin Wang Jinshan Tang Xiaoqing Tang Ting Lan Xuemei Chen Hairong Wei Quanzhi Zhao Guiliang Tang | 2018 | Molecular Plant2018,11,11: | 7 |
| 16 | Visible light responsive N-F-codoped TiO_2 photocatalysts for the degradation of 4-chlorophenol显示文摘N-F-codoped TiO2 (NFTO) photocatalysts were synthesized by a simple sol-gel process with tetrabutyl titanate (Ti(OBu)4 ) as the precursor of TiO 2 and ammonium fluoride (NH4 F) as the source of N and F.The synthesized photocatalysts were investigated by X- ray diffraction (XRD),X-ray photoelectron spectroscopy (XPS),ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS) and photodegradation reaction tests of 4-chlorophenol under visible light irradiation to understand the relationship between the structure of NFTO catalyst and corresponding photocatalytic activity.The crystal phase and particle size of catalysts were found to be largely affected by the calcination temperature.In addition,N-F-codoping could inhibit phase transition of TiO2 from anatase to rutile.The presence of N and F atoms in the lattice of TiO2 is responsible for the visible light catalytic activity.In UV-Vis DRS tests,the spectrum of NFTO exhibited red shift compared with Degussa P25 and the band gap was reduced to around 2.92 eV.Under optimal calcination temperature and dopant concentration conditions,the NFTO photocatalyst exhibited the highest activity in the photodegradation reaction tests of 4-chlorophenol under visible light irradiation with a degradation rate of 75.84%.Besides,the 5-recycle test showed that NFTO photocatalyst could be reused and its activity kept stable under visible light irradiation. | Xiaohong Li Haidong Zhang Xuxu Zheng Zhongyi Yin Le Wei | 2011 | Journal of Environmental Sciences2011,23,11: | 7 |
| 17 | Simultaneous incorporation of PTH(1-34) and nano-hydroxyapatite into Chitosan/Alginate Hydrogels for efficient bone regeneration显示文摘Tissue regeneration based on the utilization of artificial soft materials is considered a promising treatment for bone-related diseases.Here,we report cranial bone regeneration promoted by hydrogels that contain parathyroid hormone(PTH)peptide PTH(1-34)and nano-hydroxyapatite(nHAP).A combination of the positively charged natural polymer chitosan(CS)and negatively charged sodium alginate led to the formation of hydrogels with porous structures,as shown by scanning electron microscopy.Rheological characterizations revealed that the mechanical properties of the hydrogels were almost maintained upon the addition of nHAP and PTH(1-34).In vitro experiments showed that the hydrogel containing nHAP and PTH(1-34)exhibited strong biocompatibility and facilitated osteogenic differentiation of rat bone marrow mesenchymal stem cells(rBMSCs)via the Notch signaling pathway,as shown by the upregulated expression of osteogenic-related proteins.We found that increasing the content of PTH(1-34)in the hydrogels resulted in enhanced osteogenic differentiation of BMSCs.Implantation of the complex hydrogel into a rat cranial defect model led to efficient bone regeneration compared to the rats treated with the hydrogel alone or with nHAP,indicating the simultaneous therapeutic effect of nHAP and PTH during the treatment process.Both the in vitro and in vivo results demonstrated that simultaneously incorporating nHAP and PTH into hydrogels shows promise for bone regeneration,suggesting a new strategy for tissue engineering and regeneration in the future. | Zhiyuan Zou Le Wang Zhifei Zhou Qing Sun Delong Liu Yan Chen Hao Hu Yu Cai Sixiong Lin Zhengran Yu Bizhi Tan Wei Guo Zemin Ling Xuenong Zou | 2021 | Bioactive Materials2021,6,6: | 7 |
| 18 | Bioanalysis and Pharmacokinetics of Eight Active Components from Huanglian Jiedu Decoction in Rat Plasma by LC-ESI-MS/MS Method显示文摘Objective To develop a sensitive and rapid liquid chromatography-electrospray ionization-tandem mass spectrometry(LC-ESI-MS/MS) method for the simultaneous determination of wogonin, coptisine, berberine, palmatine, jatrorrhizine, phello-dendrine, magnoflorine, and wogonoside in rat plasma and to evaluate the pharmacokinetic characteristics of Huanglian Jiedu Decoction(HJD). Methods LC separation was performed on an Acquity HSS T3 column(100 mm × 2.1 mm, 1.8 μm) using gradient elution with the mobile phase consisting of acetonitrile and 0.1% formic acid water. The detection was accomplished by using positive electrospray ionization in multiple-reaction monitoring mode. Plasma samples were pretreated by protein precipitation. Results The method showed a good linearity over a wide concentration range(r2 > 0.99). The lower limits of quantification were 0.20 ng/mL for coptisine and phellodendrine, 0.48 ng/mL for berberine, 0.10 ng/mL for jatrorrhizine, 0.32 ng/mL for magnoflorine, 0.30 ng/mL for palmatine, and 4.80 ng/mL for wogonin and wogonoside, respectively. The intra- and inter-day precision of the analytes was less than 12.11%, while the accuracy was between-14.46% and 4.86%. The mean recovery of all the analytes ranged from 93.10% to 110.91%. Conclusion This validated method offers the advantages of high sensitivity. It is successfully applied to evaluating the pharmacokinetic properties of HJD. | Cheng-cheng Peng Shu-ping Wang Hui-zi Jin Jian-fei Tao Guo-wei Wang Pan-lei Wei Xu-feng Zhang Le Li Run-hui Liu Wei-dong Zhang | 2014 | Chinese Herbal Medicines2014,6,3: | 6 |
| 19 | Protective Effects of Combination of Radix Astragali and Radix Salviae Miltiorrhizae on Kidney of Spontaneously Hypertensive Rats and Renal Intrinsic Cells显示文摘Objective: To evaluate the effects of combination of Radix Astragali(RA) and Radix Salviae Miltiorrhizae(RS) on kidney of spontaneously hypertensive rats(SHRs) and renal intrinsic cells. Methods: SHRs were intragastrically administrated with RA(5.09 g/kg) and RS(2.55 g/kg) either alone or with combination for 4 weeks;valsartan(13.35 mg/kg) was used as a positive control. Blood pressure and renal ultrasonography were monitored periodically. The biomarkers [microalbumin(m ALB), cystatin C, angiotensin Ⅱ(Ang Ⅱ), interleukin-1 beta(IL-1β), and β2-microglobulin(β2-Mg), etc.] in serum and urine were measured by enzyme-linked immunosorbent assay(ELISA). The protein expressions [phosphorylated adenosine 5’-monophosphate-activated protein kinase-α1(p-AMPKα1), sestrin-β, calcium/calmodulin-dependent protein kinase kinase-β(Ca MKK-β), phosphoinositide 3-kinases(PI3 K), serine-threonine protein kinase 1(AKT1), and vascular endothelial growth factor receptor 2(VEGFR2)] in renal cortex were determined by Western blot. In vitro, the hypertensive cellular model was established by applying 2×10^-6 mol/L Ang Ⅱ. The primary human podocytes, human glomerular endothelial cells(HRGECs), and human proximal tubular epithelial cells(HK-2 s) were pre-incubated with sulfotanshinone sodium(Tan, 10 μg/m L) and/or calycosin-7-O-β-D-glucoside(Cal, 5 μg/m L). The cellular viability and apoptosis were assayed by 3-(4, 5-Dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide(MTT) and Annexin V/PI staining, respectively. The level of endothelial nitric oxide synthase(eNOS) in culture supernatant was determined by ELISA. Results: RA+RS significantly decreased the diastolic blood pressure, renal vascular resistance index, and parenchymal thickness, increased 24 h urinary volume as well as lowered the levels of urine m ALB and serum cystatin C, IL-1β and β2-Mg of SHRs(P<0.05 vs. SHRs). The decreased protein levels of p-AMPKα1, sestrinβ and Ca MKK-β and the increased protein levels of PI3 K, AKT1 and VEGFR2 in renal cortex of SHRs were normalized after RA+RS treatment(P<0.05). In vitro, Tan and Cal attenuated the Ang Ⅱ-induced abnormal proliferation and increased the apoptosis of HRGECs and HK-2 s and improved the level of e NOS in culture supernatant. Whereas, neither of them showed powerful effect on podocyte. Conclusion: The combination of RA and RS had potential effects on alleviating the renal damages of SHRs and the renoprotection was independent of blood pressure level. | LI Wei JIANG Yue-hua WANG Yan ZHAO Meng HOU Guang-jian HU Hong-zhen ZHOU Le | 2020 | Chinese Journal of Integrative Medicine2020,26,1: | 6 |
| 20 | Dynamics of tether-tugging reorbiting with net capture显示文摘To control the growth of space debris in the geostationary earth orbit(GEO), a novel solution of net capture and tether-tugging reorbiting is proposed. After capture, the tug(i.e., active spacecraft), tether, net, and target(i.e., GEO debris) constitute a rigid-flexible coupled tethered combination system(TCS), and subsequently the system is transported to the graveyard orbit by a thruster equipped on the tug. This paper attempts to study the dynamics of tether-tugging reorbiting after net capture. The net is equivalent to four flexible bridles, and the tug and target are viewed as rigid bodies. A sophisticated mathematical model is developed, taking into account the system orbital motion, relative motion of two spacecraft and spacecraft attitude motion. Given the complexity of the model, the numerical method is adopted to study the system dynamics characteristics. Particular attention is given to the investigation of the possible risks such as tether slack, spacecraft collision, tether rupture, tether-tug intertwist and destabilizing of the tug's attitude. The influence of the initial conditions and the magnitudes of the thrust are studied. | LIU Hai Tao ZHANG Qing Bin YANG Le Ping ZHU Yan Wei ZHANG Yuan Wen | 2014 | Science China(Technological Sciences)2014,57,12: | 6 |