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113篇 您的检索式:作者名="ZHAI Bin"
    题名 作者 年代 出处 被引量
1Berberine protects rat heart from ischemia/ reperfusion injury via activating JAK2/STAT3 signaling and attenuating endoplasmic reticulum stress显示文摘目的: Berberine (BBR ) ,从根茎 coptidis 孤立的导出 isoquinoline 的碱,施加 cardioprotective 效果。因为 endoplasmic 蜂窝胃(嗯)应力在导致的心肌的 ischemia/reperfusion ( MI/R )起一个枢轴的作用 apoptosis ,检验 BBR 的保护的效果是否源于 modulating 有趣嗯在 MI/R 损害期间强调层次,并且在这 process.Methods 定义发信号的机制:雄的老鼠与 BBR 被对待( 200 mg· ; kg −1·d−1, ig )为 2 个星期,然后使外科遭到了到 MI/R 。心脏的尺寸和功能用 echocardiography 被估计。心肌的梗塞尺寸和 apoptosis 被检验。在心织物的全部的浆液 LDH 层次和 CK 活动, superoxide 生产, MDA 层次和抗氧化剂草皮活动是坚定的。一在里面 vitro 学习在胚胎的导出心肌层的房间 H9C2 暴露了到模仿的 ischemia/reperfusion (先生) 的有教养的老鼠上被执行。apoptotic 的表达式,嗯压力相关、发信号的蛋白质用西方的污点 analyses.Results 被估计: 有 BBR 的预告的处理显著地减少了 MI/R-induced 心肌的梗塞尺寸,改进心脏的函数,和压制的心肌的 apoptosis 和氧化损坏。而且,有 BBR 的预告的处理压制了 MI/R-induced 嗯应力,证实了由下面调整心肌的津贴和 eIF2α 的 phosphorylation 层次;并且在心纸巾的 ATF4 和砍的表示。有 BBR 的预告的处理也激活与 AG490 在心纸巾,和合作处理表明小径的 JAK2/STAT3,一个特定的 JAK2/STAT3 禁止者,在 MI/R-induced 上堵住了 BBR 的 BBR,而且抑制的不仅保护的效果嗯应力。在 H9C2 房间,有 BBR 的处理(50 μ mol/L ) 显著地减少的导致先生的房间 apoptosis,氧化应力并且嗯应力,被 transfection 与 JAK2 siRNA.Conclusion 废除, BBR 改善在由激活表明小径和 attenuating 的 AK2/STAT3 的老鼠的 MI/R 损害嗯导致压力的 apoptosis。Guo-long ZHAO Li-ming YU Wen-li GAO Wei-xun DUAN Bo JIANG Xu-dong LIU Bin ZHANG Zhen-hua LIU Meng-en ZHAI Zhen-xiao JIN Shi-qiang YU Yun WANG 2016Acta Pharmacologica Sinica2016,37,3:47
2Regional assessment of cadmium pollution in agricultural lands and the potential health risk related to intensive mining activities: A case study in Chenzhou City, China显示文摘The purpose of this study was to assess the extent of cadmium (Cd) contamination in agricultural soil and its potential risk for people. Soils, rice, and vegetables from Chenzhou City, Southern China were sampled and analyzed. In the surface soils, the 95% confidence interval for the mean concentration of Cd varied between 2.72 and 4.83 mg/kg (P < 0.05) in the survey, with a geometric mean concentration of 1.45 mg/kg. Based on the GIS map, two hot spot areas of Cd in agricultural soils with high Cd concentrations were identified to be located around the Shizhuyuan, Jinshiling, and Yaogangxian mines, and the Baoshan and Huangshaping mines, in the center of the city. About 60% of the total investigated area, where the agricultural soil Cd concentration is above 1 mg/kg, is distributed in a central belt across the region. The critical distances, at which the soil Cd concentration were increased by the mining activities, from the mines of the soils were 23 km for the Baoshan mine, 46 km for the Huangshaping mine, and 63 km for the Shizhuyuan mine, respectively. These are distances calculated from models. The Cd concentrations in rice samples ranged from 0.01 to 4.43 mg/kg and the mean dietary Cd intake from rice for an adult was 191 μg/d. Results of risk indexes showed that soil Cd concentrations possessed risks to local residents whose intake of Cd from rice and vegetables grown in soils in the vicinity of the mine was 596 μg/d.ZHAI Limei LIAO Xiaoyong CHEN Tongbin YAN Xiulan XIE Hua WU Bin WANG Lixia 2008Journal of Environmental Sciences2008,20,6:35
3Multi-objective optimization of a mixed-flow pump impeller using modified NSGA-II algorithm显示文摘In order to maintain a uniform distribution of pareto-front solutions, a modified NSGA-II algorithm coupled with a dynamic crowding distance(DCD) method is proposed for the multi-objective optimization of a mixed-flow pump impeller. With the pump meridional section fixed, ten variables along the shroud and hub are selected to control the blade load by using a three-dimensional inverse design method. Hydraulic efficiency, along with impeller head, is applied as an optimization objective; and a radial basis neural network(RBNN) is adopted to approximate the objective function with 82 training samples. Local sensitivity analysis shows that decision variables have different impacts on the optimization objectives. Instead of randomly selecting one solution to implement, a technique for ordering preferences by similarity to ideal solution(TOPSIS) is introduced to select the best compromise solution(BCS) from pareto-front sets. The proposed method is applied to optimize the baseline model, i.e. a mixed- flow waterjet pump whose specific speed is 508 min?1?m3s?1?m. The performance of the waterjet pump was experimentally tested. Compared with the baseline model, the optimized impeller has a better hydraulic efficiency of 92% as well as a higher impeller head at the design operation point. Furthermore, the off-design performance is improved with a wider highefficiency operation range. After optimization, velocity gradients on the suction surface are smoother and flow separations are eliminated at the blade inlet part. Thus, the authors believe the proposed method is helpful for optimizing the mixed-flow pumps.HUANG RenFang LUO XianWu JI Bin WANG Peng YU An ZHAI ZhiHong ZHOU JiaJian 2015Science China(Technological Sciences)2015,58,12:32
4Whole-genome sequencing of 508 patients identifies key molecular features associated with poor prognosis in esophageal squamous cell carcinoma显示文摘Esophageal squamous cell carcinoma(ESCC)is a poor-prognosis cancer type with limited understanding of its molecular etiology.Using 508 ESCC genomes,we identified five novel significantly mutated genes and uncovered mutational signature clusters associated with metastasis and patients’outcomes.Several functional assays implicated that NFE2L2 may act as a tumor suppressor in ESCC and that mutations in NFE2L2 probably impaired its tumor-suppressive function,or even conferred oncogenic activities.Additionally,we found that the NFE2L2 mutations were significantly associated with worse prognosis of ESCC.We also identified potential noncoding driver mutations including hotspot mutations in the promoter region of SLC35E2 that were correlated with worse survival.Approximately 5.9%and 15.2%of patients had high tumor mutation burden or actionable mutations,respectively,and may benefit from immunotherapy or targeted therapies.We found clinically relevant coding and noncoding genomic alterations and revealed three major subtypes that robustly predicted patients’outcomes.Collectively,we report the largest dataset of genomic profiling of ESCC useful for developing ESCC-specific biomarkers for diagnosis and treatment.Yongping Cui Hongyan Chen Ruibin Xi Heyang Cui Yahui Zhao Enwei Xu Ting Yan Xiaomei Lu Furong Huang Pengzhou Kong Yang Li Xiaolin Zhu Jiawei Wang Wenjie Zhu Jie Wang Yanchun Ma Yong Zhou Shiping Guo Ling Zhang Yiqian Liu Bin Wang Yanfeng Xi Ruifang Sun Xiao Yu Yuanfang Zhai Fang Wang Jian Yang Bin Yang Caixia Cheng Jing Liu Bin Song Hongyi Li Yi Wang Yingchun Zhang Xiaolong Cheng Qimin Zhan Yanhong Li Zhihua Liu-Show 2020Cell Research2020,30,10:19
5Emerging in-plane anisotropic two-dimensional materials显示文摘Black phosphorus(BP)is a rapidly up and coming star in two-dimensional(2D)materials.The unique characteristic of BP is its in-plane anisotropy.This characteristic of BP ignites a new type of 2D materials that have low-symmetry structures and in-plane anisotropic properties.On this basis,they offer richer and more unique low-dimensional physics compared to isotropic 2D materials,thus providing a fertile ground for novel applications including electronics,optoelectronics,molecular detection,thermoelectric,piezoelectric,and ferroelectric with respect to in-plane anisotropy.This article reviews the recent advance in characterization and applications of in-plane anisotropic 2D materials.Liang Li Wei Han Lejing Pi Ping Niu Junbo Han Chengliang Wang Bin Su Huiqiao Li Jie Xiong Yoshio Bando Tianyou Zhai 2019InfoMat2019,1,1:16
6Long-term phosphorus accumulation and agronomic and environmtal critical phosphorus levels in Haplic Luvisol soil, northern China显示文摘Sufficient soil phosphorus(P) content is essential for achieving optimal crop yields,but accumulation of P in the soil due to excessive P applications can cause a risk of P loss and contribute to eutrophication of surface waters.Determination of a critical soil P value is fundamental for making appropriate P fertilization recommendations to ensure safety of both environment and crop production.In this study,agronomic and environmental critical P levels were determined by using linear-linear and linear-plateau models,and two segment linear model,for a maize(Zea mays L.)-winter wheat(Triticum aestivum L.) rotation system based on a 22-yr field experiment on a Haplic Luvisol soil in northern China.This study included six treatments:control(unfertilized),no P(NoP),application of mineral P fertilizer(MinP),MinP plus return of maize straw(MinP+StrP),MinP plus low rate of farmyard swine manure(MinP+L.Man) and MinP plus high rate of manure(MinP+H.Man).Based on the two models,the mean agronomic critical levels of soil Olsen-P for optimal maize and wheat yields were 12.3 and 12.8 mg kg^(-1),respectively.The environmental critical P value as an indicator for P leaching was 30.6 mg Olsen-P kg^(-1),which was 2.4 times higher than the agronomic critical P value(on average 12.5 mg P kg^(-1)).It was calculated that soil Olsen-P content would reach the environmental critical P value in 41 years in the MinP treatment,but in only 5-6years in the two manure treatments.Application of manure could significantly raise soil Olsen-P content and cause an obvious risk of P leaching.In conclusion,the threshold range of soil Olsen-P is from 12.5 to 30.6 mg P kg^(-1) to optimize crop yields and meanwhile maintain relatively low risk of P leaching in Haplic Luvisol soil,northern China.XI Bin ZHAI Li-mei LIU Jian LIU Shen WANG Hong-yuan LUO Chun-yan REN Tian-zhi LIU Hong-bin 2016Journal of Integrative Agriculture2016,15,1:13
7Overlay of a sponge soaked with ropivacaine and multisite infiltration analgesia result in faster recovery after laparoscopic hepatectomy显示文摘BACKGROUND Compared with traditional open surgery,laparoscopic surgery is preferred due to the advantages of less trauma,less pain,and faster recovery.Nevertheless,many patients still suffer from postoperative pain resulting from the surgical incision and associated tissue injury.Many researchers have reported methods to improve postoperative pain control,but there is not a simple and effective method that can be clinically adopted in a widespread manner.We designed this study to prove the hypothesis that application of ropivacaine in the port site and operative site in patients is an effective and convenient method which can decrease postoperative pain and accelerate recovery.AIM To evaluate the effects of ropivacaine on pain control after laparoscopic hepatectomy and its contribution to patient recovery.METHODS From May 2017 to November 2018,146 patients undergoing laparoscopic hepatectomy were randomized to receive infiltration of either 7.5 mg/mL ropivacaine around the trocar insertions,incision,and cutting surface of the liver(with a gelatin sponge soaked with ropivacaine)at the end of surgery(ropivacaine group),or normal saline(5 mL)at the same sites at the end of surgery(control group).The degree of pain,nausea,vomiting,heart rate(HR),and blood pressure were collected.The length of postoperative hospitalization,complications,and the levels of stress hormones were also compared between the two groups.RESULTS Compared with the control group,the ropivacaine group showed reduced postoperative pain at rest within 12 h(P<0.05),and pain on movement was reduced within 48 h.The levels of epinephrine,norepinephrine,and cortisol at 24 and 48 h,HR,blood pressure,and cumulative sufentanil consumption in the ropivacaine group were significantly lower than those in the control group(P<0.05).In the ropivacaine group,hospitalization after operation was shorter,but the difference was not statistically significant.There were no significant differences in postoperative nausea,vomiting,or other complications,including hydrothorax,ascites,peritonitis,flatulence,and venous thrombus(P>0.05),although fewer patients in the ropivacaine group experienced these situations.CONCLUSION Infiltration with ropivacaine in the abdominal wound and covering the cutting surface of the liver with a gelatin sponge soaked with ropivacaine significantly reduce postoperative pain and the consumption of sufentanil.Hao Zhang Gang Du Yan-Feng Liu Jin-Huan Yang Mu-Guo A-Niu Xiang-Yu Zhai Bin Jin 2019World Journal of Gastroenterology2019,25,34:13
8Progress in Global Gas Hydrate Development and Production as a New Energy Resource显示文摘Natural gas hydrates have been hailed as a new and promising unconventional alternative energy,especially as fossil fuels approach depletion,energy consumption soars,and fossil fuel prices rise,owing to their extensive distribution,abundance,and high fuel efficiency.Gas hydrate reservoirs are similar to a storage cupboard in the global carbon cycle,containing most of the world's methane and accounting for a third of Earth's mobile organic carbon.We investigated gas hydrate stability zone burial depths from the viewpoint of conditions associated with stable existence of gas hydrates,such as temperature,pressure,and heat flow,based on related data collected by the global drilling programs.Hydrate-related areas are estimated using various biological,geochemical and geophysical tools.Based on a series of previous investigations,we cover the history and status of gas hydrate exploration in the USA,Japan,South Korea,India,Germany,the polar areas,and China.Then,we review the current techniques for hydrate exploration in a global scale.Additionally,we briefly review existing techniques for recovering methane from gas hydrates,including thermal stimulation,depressurization,chemical injection,and CH4-CO2 exchange,as well as corresponding global field trials in Russia,Japan,United States,Canada and China.In particular,unlike diagenetic gas hydrates in coarse sandy sediments in Japan and gravel sediments in the United States and Canada,most gas hydrates in the northem South China Sea are non-diagenetic and exist in fine-grained sediments with a vein-like morphology.Therefore,especially in terms of the offshore production test in gas hydrate reservoirs in the Shenhu area in the north slope of the South China Sea,Chinese scientists have proposed two unprecedented techniques that have been verified during the field trials:solid fluidization and formation fluid extraction.Herein,we introduce the two production techniques,as well as the so-called'fbur-in-one'environmental monitoring system employed during the Shenhu production test.Methane is not currently commercially produced from gas hydrates anywhere in the world;therefore,the objective of field trials is to prove whether existing techniques could be applied as feasible and economic production methods for gas hydrates in deep-water sediments and permafrost zones.Before achieving commercial methane recovery from gas hydrates,it should be necessary to measure the geologic properties of gas hydrate reservoirs to optimize and improve existing production techniques.Herein,we propose horizontal wells,multilateral wells,and cluster wells improved by the vertical and in dividual wells applied during existing field trials.It is noteworthy that relatively pure gas hydrates occur in seafloor mounds,within near-surface sediments,and in gas migration conduits.Their extensive distribution,high saturation,and easy access mean that these types of gas hydrate may attract considerable attention from academia and industry in the future.Herein,we also review the occurrence and development of concentrated shallow hydrate accumulations and briefly introduce exploration and production techniques.In the closing section,we discuss future research needs,key issues,and major challenges related to gas hydrate exploration and production.We believe this review article provides insight on past,present,and future gas hydrate exploration and production to provide guidelines and stimulate new work into the field of gas hydrates.LIU Liping SUN Zhilei ZHANG Lei WU Nengyou Yichao Qin JIANG Zuzhou GENG Wei CAO Hong ZHANG Xilin ZHAI Bin XU Cuiling SHEN Zhicong JIA Yonggang 2019Acta Geologica Sinica(English Edition)2019,93,3:13
9Comparative Transcriptional Profiling and Preliminary Study on Heterosis Mechanism of Super-Hybrid Rice显示文摘杂种优势比也是从二父母表演的后代改善了的生物现象和优异性能生来的父母线。混合米饭是在利用杂种优势的庄稼的最成功的 apotheoses 之一。由基因表示(半自动地面防空系统)的连续分析 F1 超级混血儿的米饭 Liangyou-2186 和它的父母介绍的 Transcriptional 表明 1183 差别表示了基因( DG ),在哪个之中 DG 被发现显著地在象光合作用和碳固定那样的小径充实,并且大多数涉及碳固定小径的关键基因在 F1 混合米饭展出了起来调整的表示。而且,相应的酶的增加的分解代谢的活动和光合的效率也被检测,它联合了显示那碳固定可能在 F1 混血儿,和力量被提高在超级混血儿的米饭与收益活力和杂种优势被联系。由有收益相关的量的特点 loci (QTL ) 的相关 DG,在微分基因表示和 phenotypic 变化之间的一种潜在的关系也被发现。另外,当以前在 Arabidopsis 报导了,包含生理节奏节奏、轻的发信号的小径的一个规章的网络也被发现,它建议如此的一个网络可能也与在混合米饭的杂种优势是相关的。总的来说,现在的学习为理解在米饭位于杂种优势下面的分子的机制提供另一个看法。Gui-Sheng Song Hong-Li Zhai Yong-Gang Peng Lei Zhang Gang Wei Xiao- Ying Chen Yu-Guo Xiao Lili Wang Yue-Jun Chen Bin Wu Bin Chen Yu Zhang Hua Chen Xiu-Jing Feng Wan-Kui Gong Yao Liu Zhi-Jie Yin Feng Wang Guo-Zhen Liu Hong-Lin Xu Xiao-Li Wei Xiao-Ling Zhao Pieter B.F. Ouwerkerk Thomas Hankemeier Theo Reijmers Rob van der Heijden Cong-Ming Lu Mei Wang Jan van der Greef Zhen Zhu 2010Molecular Plant2010,3,6:12
10Unconstrained Facial Beauty Prediction Based on Multi-scale K-Means显示文摘Facial beauty prediction belongs to an emerging field of human perception nature and rule.Compared with other facial analysis tasks,this task has shown its challenges in pattern recognition and biometric recognition.The algorithm of presented facial beauty prediction requires burden landmark or expensive optimization procedure.We establish a larger database and present a novel method for predicting facial beauty,which is notably superior to previous work in the following aspects:1)A largescale database with more reasonable distribution has been established and utilized in our experiments;2)Both female and male facial beauties are analyzed under unconstrained conditions without landmark;3)Multi-scale apparent features are learned to represent facial beauty which are more expressive and require less computation expenditure.Experimental results demonstrate the accuracy and efficiency of the presented method.GAN Junying ZHAI Yikui WANG Bin 2017Chinese Journal of Electronics2017,26,3:11
11Vast laminated diatom mat deposits from the west low-latitude Pacific Ocean in the last glacial period显示文摘Diatoms are one of the predominant contributors to global carbon fixation by accounting for over 40% of total oceanic primary production and dominate export production. They play a significant role in marine biogeochemistry cycle. The diatom mat deposits are results of vast diatoms bloom. By analysis of diatom mats in 136°00′―140°00′E,15°00′―21°00′N, Eastern Philippines Sea, we identified the species of the diatoms as giant Ethmodiscus rex (Wallich) Hendey. AMS 14C dating shows that the sediments rich in diatom mats occurred during 16000―28600 a B.P., which means the bloom mainly occurred during the last glacial period, while there are no diatom mat deposits in other layers. Preliminary analysis indicates that Antarctic Intermediate Water (AAIW) expanded northward and brought silicate-rich water into the area, namely, silicon leakage processes caused the bloom of diatoms. In addition, the increase of iron input is one of the main reasons for the diatom bloom.ZHAI Bin LI TieGang CHANG FengMing CAO QiYuan 2009Chinese Science Bulletin2009,54,23:9
12A draft sequence of the rice (Oryza sativa ssp. indica) genome显示文摘The sequence of the rice genome holds fundamental information for its biology, including physiology, genetics, development, and evolution, as well as information on many beneficial phenotypes of economic significance. Using a 'whole genome shotgun' approach, we have pro-duced a draft rice genome sequence of Oryza sativa ssp. in-dica, the major crop rice subspecies in China and many other regions of Asia. The draft genome sequence is constructed from over 4.3 million successful sequencing traces with an accumulative total length of 2214.9 Mb. The initial assembly of the non-redundant sequences reached 409.76 Mb in length, based on 3.30 million successful sequencing traces with a total length of 1797.4 Mb from an indica variant cultivar 93-11, giving an estimated coverage of 95.29% of the rice genome with an average base accuracy of higher than 99%. The coverage of the draft sequence, the randomness of the sequence distribution, and the consistency of BIG-ASSEM-BLER, a custom-designed software packageYU Jun, HU Songnian, WANG Jun,LI Songgang WONG Ka-Shu Gane, LIU Bin,DENG Yajun, DAI Li, ZHOU Yan,ZHANG Xiuqing, CAO Mengliang, LIU Jing,SUN Jiandong , TANG Jiabin, CHEN Yanjiong,HUANG Xiaobing, LIN Wei, YE Chen, TONG Wei,CONG Lijuan, GENG Jianing, HAN Yujun, LI Lin,LI Wei, HU Guangqiang, HUANG Xiangang,LI Wenjie, LI Jian, LIU Zhanwei, LI Long,LIU Jianping, Ql Qiuhui, LIU Jinsong, LI Li,WANG Xuegang, LU Hong, WU Tingling,ZHU Miao, Nl Peixiang, HAN Hua, DONG Wei,REN Xiaoyu, FENG Xiaoli, GUI Peng,LI Xianran, WANG Hao, XU Xin, ZHAI Wenxue,XU Zhao, ZHANG Jinsong, HE Sijie,ZHANG Jianguo, XU Jichen, ZHANG Kunlin,ZHENG Xianwu, DONG Jianhai, ZENG Wanyong,TAO Lin, CHEN Xuewei, HE Jun, LIU Daofeng,TIAN Wei, TIAN Chaoguang, XIA Hongai,LI Gang, GAO Hui, LI Ping, CHEN Wei ,WANG Xudong, ZHANG Yong, HU Jianfei,WANG Jing, LIU Song, YANG Jian,ZHANG Guangyu, XIONG Yuqing, LI Zhijie,MAO Long, ZHOU Chengshu, ZHU Zhen,CHEN Runsheng, HAO Bailin,ZHENG Weimou, CHEN Shouyi, QUO Wei,LI Guojie, LIU Siqi, HUANG Guyang,TAO Ming, WANG Jian, ZHU Lihuang,YUAN Longping& YANG HuanmingBeijing Genomics Institute/Center of Genomics & Bioinformatics, Chinese Academy of Sciences, Beijing 101300, China Hangzhou Genomics Institute/Institute of Bioinformatics of Zhejiang University/Key Laboratory of Bioinformatics of Zhejiang Province, Hangzhou 310007, China Institute of Genetics, Chinese Academy of Sciences, Beijing 100101, China National Hybrid Rice R & D Center, Changsha 410125, China Laboratory of Bioinformatics, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China College of Life Sciences, Peking University, Beijing 100871, China Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 1Q0080, China Digital China Ltd., Beijing 100080, China Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100080, China Medical College, Xi’an Jiaotong University, Xi’an 710061, ChinaThese authors contributed equally to this work.Corresponding author.Corresponden 2001Chinese Science Bulletin2001,46,23:6
13Model simulations of the annual cycle of the landfast ice thickness in the East Siberian Sea显示文摘The annual cycle of the thickness and temperature of landfast sea ice in the East Siberian Sea has been examined using a one-dimensional thermodynamic model. The model was calibrated for the year August 2012–July 2013, forced using the data of the Russian weather station Kotel'ny Island and ECMWF reanalyses. Thermal growth and decay of ice were reproduced well, and the maximum annual ice thickness and breakup day became 1.64 m and the end of July. Oceanic heat flux was 2 W.m–2 in winter and raised to 25 W.m–2 in summer, albedo was 0.3–0.8 depending on the surface type(snow/ice and wet/dry). The model outcome showed sensitivity to the albedo, air temperature and oceanic heat flux. The modelled snow cover was less than 10 cm having a small influence on the ice thickness. In situ sea ice thickness in the East Siberian Sea is rarely available in publications. This study provides a method for quantitative ice thickness estimation by modelling. The result can be used as a proxy to understand the sea ice conditions on the Eurasian Arctic coast, which is important for shipping and high-resolution Arctic climate modelling.YANG Yu Matti Leppranta LI Zhijun Bin Cheng ZHAI Mengxi Denis Demchev 2015Advances in Polar Science2015,26,2:5
142,3,5,4'-Tetra hyd roxystil bene-2-O-β-D-gl ucoside protects murine hearts against ischemia/reperfusion injury by activating Notchl/Hesl signaling and attenuating endoplasmic reticulum stress显示文摘2,3,5,4-Tetrahydroxystilbene-2-O--D-glucoside (TSG ) 是从蓼 multiflorum Thunb 提取的一个水溶性的活跃部件。很多研究证明 TSG 施加 cardioprotective 效果。自从 endoplasmic 蜂窝胃(嗯) 应力在导致的心肌的 ischemia/reperfusion (MI/R ) 起一个关键作用房间 apoptosis,我们寻求了决定 ER 压力的调整是否在 MI/R 损害期间涉及 TSG 的 cardioprotective 行动。雄的老鼠与 TSG 被对待(60 mg ???  ?????????????? ??? 猯'T? 删 ?? 乃 ?????? 瀠瑡潨桰獹潩潬祧吗??Meng ZHANG Li-ming YU Hang ZHAO Xuan-xuan ZHOU Qian YANG Fan SONG Li YAN Meng-en ZHAI Bu-ying LI Bin ZHANG Zhen-xiao JIN Wei-xun DUAN Si-wang WANG 2017Acta Pharmacologica Sinica2017,38,3:5
15A comparative study of risk factors for corneal infection in diabetic and non-diabetic patients显示文摘AIM: To compare the clinical characteristics of infectious keratopathy in type 2 diabetes mellitus(T2DM) and nondiabetes mellitus(NDM) and to investigate risk factors for infectious keratopathy in T2DM patients. METHODS: Totally 230 patients with T2DM and 168 with NDM diagnosed as infectious keratopathy were hospitalized at Qingdao Eye Hospital from 2001 to 2015. Data including sex, age, occupation, season, smoking and alcohol consumption habits, duration between onset and treatments, duration of hospitalization were collected. Initially identified indicators were analyzed with a multivariate logistic regression. Glycosylated hemoglobin A1 c(Hb A1 c) in patients with T2DM was analyzed. The infectious keratopathies in the two groups were categorized and compared.RESULTS: The diabetic group consisted of 146(63.5%) males and 84(36.5%) females. The NDM group consisted of 111(66.1%) males and 57(33.9%) females. There was no signigicantly difference in sex distribution between the two groups(P>0.05). There were significant differences in age, occupation of patients, season of the onset of diseases, duration between onset and treatment, and durations of hospitalization between the two groups(P<0.05). In most of the patients in the diabetic group, the duration between onsetand treatment was ≤3 mo, and most was ≥3 mo in the NDM group. Multivariate logistic regression analysis revealed that age and season were related to the development of corneal infection in the T2DM group(OR=1.709, 1.706). In the T2DM group, Hb A1 c was 9.09%±2.12%. There were statistically significant differences in the incidences of bacterial keratitis and herpes simplex keratitis in the two groups(P<0.05), but no significant statistical difference was found between fungal keratitis and amoebic keratitis(P>0.05). CONCLUSION: Advanced age and the summer and winter seasons are identified as risk factors for infectious keratopathy in T2DM patients, and T2DM patients are more prone to bacterial keratitis.Bin Wang Shuo Yang Hua-Lei Zhai Yang-Yang Zhang Chun-Xia Cui Jun-Yi Wang Li-Xin Xie 2018International Journal of Ophthalmology(English edition)2018,11,1:5
16Characterization and functional analysis of hsp18.3 gene in the red flour beetle, Tribolium castaneum显示文摘Small heat shock proteins (sHSPs) are diverse and mainly function as molecular chaperones to protect organisms and cells from various stresses. In this study, hsp 18.3, one Tribolium castaneum species-specific shsp、has been identified. Quantitative real-time polymerase chain reaction illustrated that Tchsp 18.3 is expressed in all developmental stages, and is highly expressed at early pupal and late adult stages, while it is highly expressed in ovary and fat body at the adult period. Moreover, it was up-regulated 4532 ± 396-fold in response to enhanced heat stress but not to cold stress;meanwhile the lifespan of adults in ds-Tchsp 18.3 group reduced by 15.8% from control group under starvation. Laval RNA interference (RNAi) of Tchsp 18.3 caused 86.1%±4.5% arrested pupal eclosion and revealed that Tchsp 18.3 played an important role in insect development. In addition, parental RNAi of Tchsp 18.3 reduced the oviposition amount by 94.7%. These results suggest that Tchsp 18.3 is not only essential for the resistance to heat and starvation stress, but also is critical for normal development and reproduction in T. castaneum.Jia Xie Xing-Xing Hu Meng-Fan Zhai Xiao-Juan Yu Xiao-Wen Song Shan-Shan Gao Wei Wu Bin Li 2019Insect Science2019,26,2:5
17Biodegradable metals for bone defect repair:A systematic review and meta-analysis based on animal studies显示文摘Biodegradable metals are promising candidates for bone defect repair.With an evidence-based approach,this study investigated and analyzed the performance and degradation properties of biodegradable metals in animal models for bone defect repair to explore their potential clinical translation.Animal studies on bone defect repair with biodegradable metals in comparison with other traditional biomaterials were reviewed.Data was carefully collected after identification of population,intervention,comparison,outcome,and study design(PICOS),and following the inclusion criteria of biodegradable metals in animal studies.30 publications on pure Mg,Mg alloys,pure Zn and Zn alloys were finally included after extraction from a collected database of 2543 publications.A qualitative systematic review and a quantitative meta-analysis were performed.Given the heterogeneity in animal model,anatomical site and critical size defect(CSD),biodegradable metals exhibited mixed effects on bone defect repair and degradation in animal studies in comparison with traditional non-degradable metals,biodegradable polymers,bioceramics,and autogenous bone grafts.The results indicated that there were limitations in the experimental design of the included studies,and quality of the evidence presented by the studies was very low.To enhance clinical translation of biodegradable metals,evidence-based research with data validity is needed.Future studies should adopt standardized experimental protocols in investigating the effects of biodegradable metals on bone defect repair with animal models.Jiazhen Zhang Yanbiao Jiang Zhizhong Shang Bing Zhao Mingyue Jiao Wenbo Liu Maobo Cheng Bao Zhai Yajuan Guo Bin Liu Xinli Shi Bin Ma 2021Bioactive Materials2021,6,11:5
18Consensus on the digestive endoscopic tunnel technique显示文摘With the digestive endoscopic tunnel technique(DETT), many diseases that previously would have been treated by surgery are now endoscopically curable by establishing a submucosal tunnel between the mucosa and muscularis propria(MP). Through the tunnel, endoscopic diagnosis or treatment is performed for lesions in the mucosa, in the MP, and even outside the gastrointestinal(GI) tract.At present, the tunnel technique application range covers the following:(1)Treatment of lesions originating from the mucosal layer, e.g., endoscopic submucosal tunnel dissection for oesophageal large or circular early-stage cancer or precancerosis;(2) treatment of lesions from the MP layer, per-oral endoscopic myotomy, submucosal tunnelling endoscopic resection, etc.; and(3) diagnosis and treatment of lesions outside the GI tract, such as resection of lymph nodes and benign tumour excision in the mediastinum or abdominal cavity. With the increasing number of DETTs performed worldwide, endoscopic tunnel therapeutics, which is based on DETT, has been gradually developed and optimized. However, there is not yet an expert consensus on DETT to regulate its indications, contraindications, surgical procedure, and postoperative treatment.The International DETT Alliance signed up this consensus to standardize the procedures of DETT. In this consensus, we describe the definition, mechanism,and significance of DETT, prevention of infection and concepts of DETTassociated complications, methods to establish a submucosal tunnel, and application of DETT for lesions in the mucosa, in the MP and outside the GI tract(indications and contraindications, procedures, pre-and postoperative treatments, effectiveness, complications and treatments, and a comparison between DETT and other operations).Ning-Li Chai Hui-Kai Li En-Qiang Linghu Zhao-Shen Li Shu-Tian Zhang Yu Bao Wei-Gang Chen Philip WY Chiu Tong Dang Wei Gong Shu-Tang Han Jian-Yu Hao Shui-Xiang He Bing Hu1 Bing Hu2 Xiao-Jun Huang Yong-Hui Huang Zhen-Dong Jin Mouen A Khashab James Lau Peng Li Rui Li De-Liang Liu Hai-Feng Liu Jun Liu Xiao-Gang Liu Zhi-Guo Liu Ying-Cai Ma Gui-Yong Peng Long Rong Wei-Hong Sha Pateek Sharma Jian-Qiu Sheng Shui-Sheng Shi Dong Wan Seo Si-Yu Sun Gui-Qi Wang Wen Wang Qi Wu Hong Xu Mei-Dong Xu Ai-Ming Yang Fang Yao Hong-Gang Yu Ping-Hong Zhou Bin Zhang Xiao-Feng Zhang Ya-Qi Zhai 2019World Journal of Gastroenterology2019,25,7:5
19Rockburst characteristics of several hard brittle rocks:A true triaxial experimental study显示文摘Rockburst is a typical rock failure which frequently threatens both human life and construction equipment during highly stressed underground excavation.Rock lithology is a control factor of rockburst.In this paper,rockburst tests were conducted on rectangular prismatic specimens of six types of intact hard brittle rocks,i.e.granodiorite,granite,marble,basalt,sandstone and limestone,under one-free-face true triaxial loading conditions.With the use of high-speed cameras,an acoustic emission(AE)system and a scanning electron microscope(SEM),rockburst of different rocks was investigated.The results show that the strainbursts of granodiorite,granite and marble were accompanied by tensile splitting near the free face,and consequently were relatively strong with a large amount of fragment ejection and kinetic energy release.For basalt,sandstone and limestone,failure was primarily dominated by shear rupture.The strainbursts of basalt and sandstone were relatively small with minor fragment ejection and kinetic energy release;while no burst failure occurred on limestone due to its relatively low peak strength.Rock strength,fracturing and fragmentation characteristics,and failure modes of different rocks can significantly affect rockburst proneness and magnitude.The AE evolution coupled with SEM analysis reveals that the differences in the inhe rent microstructures and fracture evolution under loading are the primary factors accounting for different rockbursts in various rock types.Shaobin Zhai Guoshao Su Shunde Yin Bin Zhao Liubin Yan 2020Journal of Rock Mechanics and Geotechnical Engineering2020,12,2:4
20Fault-tolerant control with mixed aerodynamic surfaces and RCS jets for hypersonic reentry vehicles显示文摘This paper proposes a fault-tolerant strategy for hypersonic reentry vehicles with mixed aerodynamic surfaces and reaction control systems(RCS) under external disturbances and subject to actuator faults.Aerodynamic surfaces are treated as the primary actuator in normal situations,and they are driven by a continuous quadratic programming(QP) allocator to generate torque commanded by a nonlinear adaptive feedback control law.When aerodynamic surfaces encounter faults,they may not be able to provide sufficient torque as commanded,and RCS jets are activated to augment the aerodynamic surfaces to compensate for insufficient torque.Partial loss of effectiveness and stuck faults are considered in this paper,and observers are designed to detect and identify the faults.Based on the fault identification results,an RCS control allocator using integer linear programming(ILP) techniques is designed to determine the optimal combination of activated RCS jets.By treating the RCS control allocator as a quantization element,closed-loop stability with both continuous and quantized inputs is analyzed.Simulation results verify the effectiveness of the proposed method.He Jingjing Qi Ruiyun Jiang Bin Zhai Rongyu 2017Chinese Journal of Aeronautics2017,30,2:4
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