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Yr5-virulent races of Puccinia striiformis f.sp.tritici possess relative parasitic fitness higher than current main predominant races and potential risk
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作者 Gensheng Zhang Mudi Sun +4 位作者 Xinyao Ma Wei Liu zhimin du Zhensheng Kang Jie Zhao 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第8期2674-2685,共12页
Wheat stripe rust,caused by Puccinia striiformis f.sp.tritici(Pst),is one of the most destructive fungal diseases of wheat,and seriously threatens safe production of the crop worldwide.In China,new races historically ... Wheat stripe rust,caused by Puccinia striiformis f.sp.tritici(Pst),is one of the most destructive fungal diseases of wheat,and seriously threatens safe production of the crop worldwide.In China,new races historically appeared and rapidly developed to be predominant races and have resulted in ineffectiveness and replacement of wheat resistance cultivars as well as massive reduction in yield.In the present study,the relative parasitic fitness of the two newlyemerged Yr5-virulent races(TSA-6 and TSA-9)were compared with those of four currently predominant Chinese races(CYR31,CYR32,CYR33,and CYR34)based on evaluation on 10 Chinese wheat cultivars.As a result,there were significant differences in the relative parasitic fitness parameters among overall tested races based on multiple comparison(LSD)analysis(P<0.05).The principal component analysis(PCA)of overall parasitic fitness parameters indicated that the sporulation ability,infection and spore survivability,expansion capacity,and potential pathogenicity were the most important parasitic fitness attributes of the tested races.Based on the establishment of extracted three principal components and a comprehensive factor score mathematical models,evaluations of the parasitic fitness attributes of tested races showed that the level of relative parasitic fitness of the tested six races was:CYR32(1.15)>TSA-9(0.95)>TSA-6(0.92)>CYR34(0.29)>CYR31(–1.54)>CYR33(–1.77).The results indicated that two Yr5-virulent races TSA-9 and TSA-6 possessed relative parasitic fitness higher than races CYR34,CYR31,and CYR33,but lower than race CYR32,and have potential risks in developing to be predominant races.Therefore,continual monitoring of both Yr5-virulent races,and their variants is needed.The use of wheat cultivars(lines)with Yr5 resistance gene singly in wheat breeding is essential for being avoided,and is suggested to combine with other effective stripe rust resistance genes. 展开更多
关键词 wheat stripe rust Puccinia striiformis f.sp.tritici parasitic fitness Yr5 new race
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Ethanol extract of cassia seed alleviates metabolic dysfunction-associated steatotic liver disease by acting on multiple lipid metabolism-related pathways
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作者 Wen Li Jia Wang +10 位作者 YilianYang Chunlei duan Bing Shao Mingxiu Zhang Jiapan Wang Peifeng Li Ye Yuan Yan Zhang Hongyu Ji Xingda Li zhimin du 《Frigid Zone Medicine》 2024年第3期160-176,共17页
Background and objective:In northern China's cold regions,the prevalence of metabolic dysfunction-associated steatotic liver disease(MASLD)exceeds 50%,significantly higher than the national and global rates.MASLD ... Background and objective:In northern China's cold regions,the prevalence of metabolic dysfunction-associated steatotic liver disease(MASLD)exceeds 50%,significantly higher than the national and global rates.MASLD is an important risk factor for cardiovascular and cerebrovascular diseases,including coronary heart disease,stroke,and tumors,with no specific therapeutic drugs currently available.The ethanol extract of cassia seed(CSEE)has shown promise in lowering blood lipids and improving hepatic steatosis,but its mechanism in treating MASLD remains underexplored.This study aims to investigate the therapeutic effects and mechanisms of CSEE.Methods:MASLD models were established in male Wistar rats and golden hamsters using a high fat diet(HFD).CSEE(10,50,250 mg/kg)was administered via gavage for six weeks.Serum levels of total cholesterol(TC),triglyceride(TG),low-density lipoprotein cholesterol(LDL-C),high-density lipoprotein cholesterol(HDL-C),aspartate aminotransferase(AST),and alanine aminotransferase(ALT),as well as liver TC and TG,were measured using biochemical kits.Histopathological changes in the liver were evaluated using Oil Red O staining,Hematoxylin-eosin(H&E)staining,and transmission electron microscopy(TEM).HepG2 cell viability was assessed using the cell counting kit-8(CCK8)and Calcein-AM/PI staining.Network pharmacology was used to analyze drug-disease targets,and western blotting was used to confirm these predictions.Results:CSEE treatment significantly reduced serum levels of TC,TG,LDL-C,ALT,and AST,and improved liver weight,liver index,and hepatic lipid deposition in rats and golden hamsters.In addition,CSEE alleviated free fatty acid(FFA)-induced lipid deposition in HepG2 cells.Molecular biology experiments demonstrated that CSEE increased the protein levels of p-AMPK,p-ACC,PPARα,CPT1A,PI3K P110 and p-AKT,while decreasing the protein levels of SREBP1,FASN,C/EBPα,and PPARγ,thus improving hepatic lipid metabolism and reducing lipid deposition.The beneficial effects of CSEE were reversed by small molecule inhibitors of the signaling pathways in vitro.Conclusion:CSEE improves liver lipid metabolism and reduces lipid droplet deposition in Wistar rats and golden hamsters with MASLD by activating hepatic AMPK,PPARα,and PI3K/AKT signaling pathways. 展开更多
关键词 cassia seed ethanol extract metabolic dysfunction related fatty liver disease network pharmacology
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Sulfur deposition in sour gas reservoirs:laboratory and simulation study 被引量:4
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作者 Xiao Guo zhimin du +2 位作者 Xuefeng Yang Yong Zhang Dekui Fu 《Petroleum Science》 SCIE CAS CSCD 2009年第4期405-414,共10页
Sulfur deposition in the formation, induced by a reduction in the solubility of the sulfur in the gas phase, may significantly reduce the inflow performance of sour gas wells and some wells in sour gas reservoirs have... Sulfur deposition in the formation, induced by a reduction in the solubility of the sulfur in the gas phase, may significantly reduce the inflow performance of sour gas wells and some wells in sour gas reservoirs have even become completely plugged with deposited sulfur within several months. Accurate prediction and effective management of sulfur deposition are crucial to the economic viability of sour gas reservoirs. In this paper, a dynamic flow experiment was carried out to investigate formation damage resulting from sulfur deposition using an improved experimental method. The core sample was extracted from the producing interval of the LG2 well, LG gas field in the Sichuan Basin. The experimental temperature was 26 °C and the initial pressure was 19 MPa. The displacement pressure continuously decreased from 19 to 10 MPa, and the depletion process lasted 15 days. Then the core was removed and dried. The core mass and core permeability were measured before and after experiments. Experimental results indicated that the core mass increased from 48.372 g before experiment to 48.386 g afterwards, while the core permeability reduced from 0.726 to 0.608 md during the experiment. Then the core was analyzed with a scanning electron microscope (SEM) and energy-dispersive X-ray mapping. The deposition pattern and micro-distribution of elemental sulfur was observed and the deposited elemental sulfur distributed as a film around the pore surface. 展开更多
关键词 Sour gas reservoir sulfur deposition EXPERIMENT numerical simulation formation damage
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Big Wave of the Intelligent Connected Vehicles 被引量:2
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作者 Yan Li Yiqing Cao +3 位作者 Hong Qiu Lu Gao zhimin du Shuping Chen 《China Communications》 SCIE CSCD 2016年第S2期27-41,共15页
Internet of things is deemed as the one of the great revolution after the age of Industrial Revolution.With the development of the communication technology,more and more entities are connected to the communication net... Internet of things is deemed as the one of the great revolution after the age of Industrial Revolution.With the development of the communication technology,more and more entities are connected to the communication network and become one of the elements in the network.Over recent decades,in the area of intelligent transportation,pedestrian and transport infrastructure are connected to the communication network to improve the driving safety and traffic efficiency which is known as the ICV(Intelligent Connected Vehicle).This paper summarizes the global ICV progresses in the past decades and the latest activities of ICV in China,and introduces various aspects regarding the recent development of the ICV,including industry development,spectrum and standard,at the same time. 展开更多
关键词 intelligent connected vehicle ICV vehicle to X V2X DSRC dedicated short range communication LTE-V2X ITS intelligent transportation system
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The Efficacy and Safety of Triazavirin for COVID-19: A Trial Protocol 被引量:1
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作者 Xiaoke Wu Kaijiang Yu +16 位作者 Yongchen Wang Wanhai Xu Hongli Ma Yan Hou Yue Li Benzhi Cai Liying Zhu Min Zhang Xiaoli Hu Jingshu Gao Yu Wang Huichao Qin Mingyan Zhao Yong Zhang Kang Li zhimin du Baofeng Yang 《Engineering》 SCIE EI 2020年第10期1356-1362,共7页
根据2019年12月的报道,新冠病毒肺炎(coronavirus disease 2019, COVID-19)是由一种新型冠状病毒引起的肺炎。到目前为止,还没有发现能够治疗这种病毒的有效药物。本研究是一项在黑龙江省10个研究中心正在进行的多中心双盲随机对照试验(... 根据2019年12月的报道,新冠病毒肺炎(coronavirus disease 2019, COVID-19)是由一种新型冠状病毒引起的肺炎。到目前为止,还没有发现能够治疗这种病毒的有效药物。本研究是一项在黑龙江省10个研究中心正在进行的多中心双盲随机对照试验(randomized controlled trial, RCT),其目的是研究与安慰剂相比,特力阿扎维林(triazavirin, TZV)治疗COVID-19患者的疗效和安全性。共计划招募240名COVID-19患者参加这项试验。咽拭子病毒核酸检测为阳性的受试者被随机(1∶1)分为两组:使用标准治疗加TZV或标准治疗加安慰剂,进行为期7 d的治疗和为期21 d的随访。主要结局是受试者临床改善的时间。次要结局包括临床改善率、退热时间、肺内炎症明显吸收的平均时间和人数比例、病毒核酸转阴率、病死率以及重症和危重症患者的转化率。整个试验过程将对不良事件,严重不良事件,肝功能、肾功能以及合并用药进行监测和记录。本试验的结果可为临床医生治疗COVID-19提供循证医学的证据和建议。 展开更多
关键词 新冠病毒肺炎 肺炎 严重急性呼吸综合征冠状病毒2 特力阿扎维林 疗效 安全性
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Efficacy and Safety of Triazavirin Therapy for Coronavirus Disease 2019:A Pilot Randomized Controlled Trial
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作者 Xiaoke Wu Kaijiang Yu +20 位作者 Yongchen Wang Wanhai Xu Hongli Ma Yan Hou Yue Li Benzhi Cai Liying Zhu Min Zhang Xiaoli Hu Jingshu Gao Yu Wang Huichao Qin Wenjie Wang Mingyan Zhao Xia Wu Yong Zhang Lu Li Kang Li zhimin du Ben Willem J.Mol Baofeng Yang 《Engineering》 SCIE EI 2020年第10期1339-1347,共9页
目前,尚无有效疗法可治愈由严重急性呼吸综合征冠状病毒2(severe acute respiratory syndrome coronavirus 2,SARS-CoV-2)引起的新型冠状病毒肺炎(coronavirus disease 2019,COVID-19)。为了评估抗病毒药物特力阿扎维林治疗COVID-19的... 目前,尚无有效疗法可治愈由严重急性呼吸综合征冠状病毒2(severe acute respiratory syndrome coronavirus 2,SARS-CoV-2)引起的新型冠状病毒肺炎(coronavirus disease 2019,COVID-19)。为了评估抗病毒药物特力阿扎维林治疗COVID-19的有效性和安全性,本研究针对感染COVID-19的成年住院患者开展了一项随机双盲对照试验。本研究从10个分中心招募COVID-19患者,并将患者按1:1的比例随机分为两组。试验组的患者每天服用250 mg的特力阿扎维林药物3~4次,对照组患者则服用安慰剂,为期共7 d。主要结局指标为临床改善时间,临床改善时间的定义为随机分组28d内患者的体温、呼吸频率、血氧饱和度、咳嗽频率和肺CT(计算机断层扫描,computed tomography)所显示的肺部感染吸收情况全部恢复正常的时间。次要结局指标包括主要结局指标的5个组成指标,及肺部感染吸收的平均时间和吸收比例,以及用咽拭子采样法连续两次SARS-CoV-2核酸检测阴性的转阴率。与此同时,记录合并的治疗药物、不良事件和严重不良事件。由于需要进行住院治疗的新增感染病例的减少,本研究在招募52名患者后便停止招募。将52名受试者随机分为服用特力阿扎维林药物的试验组(n=26)和服用安慰剂的对照组(n=26)。结果显示,两组临床改善时间并无明显差异[中位数,7 d vs.12 d;风险比(RR)为2.0;95%置信区间(CI)为0.7~5.6;p=0.2]。服用特力阿扎维林的试验组中有10名患者发生临床改善,服用安慰剂的对照组中有6名患者出现临床改善(38.5%vs.23.1%,RR为2.1;95%CI为0.6~7.0;p=0.2)。除了肺部感染的吸收情况外(试验组50.0%,对照组26.1%),其余主要结局所观察指标均在28 d内恢复正常。此外,试验组的患者在呼吸系统、心脏、肾、肝或凝血功能等方面的合并治疗较对照组少。尽管特力阿扎维林药物对COVID-19患者的疗效尚未达到统计学上的显著性水平,但本研究结果表明,由于特力阿扎维林药物具有抗病毒作用,将其用于COVID-19的治疗也可能具有一定的疗效。对此,需要进一步的研究进行验证。 展开更多
关键词 新型冠状病毒肺炎 特力阿扎维林 有效性 安全性
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Overexpression of microRNA-135b-5p attenuates acute myocardial infarction injury through its anti-oxidant and anti-apptotic properties
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作者 Yanyan Liu Yahan Yu +4 位作者 Xinyao Wang Guanqun Liu Xinda Yin Yunlong Bai zhimin du 《Frigid Zone Medicine》 2021年第2期85-94,共10页
Objective:Myocardial infarction(MI)remains the leading cause of morbidity and mortality due partly to the limited regenerative capacity of cardiomyocytes to replace cardiomyocyte lost due to apoptosis.Inhibiting cardi... Objective:Myocardial infarction(MI)remains the leading cause of morbidity and mortality due partly to the limited regenerative capacity of cardiomyocytes to replace cardiomyocyte lost due to apoptosis.Inhibiting cardiomyocyte apoptosis is recognized as an effective therapeutic approach for MI.MicroRNAs(miRNAs,miRs),which regulate target genes at the post-transcriptional level,play a significant role in the regulation of cardiovascular diseases such as MI.MicroRNA-135b(miR-135b)has a protective effect on cardiomyocytes.However,the role of miR-135b in cardiomyocyte apoptosis in infarct myocardium needs further clarification.Methods:We generatedα-MHC-miR-135b transgenic mice to investigate the role of miR-135b in myocardial injury after MI.MiR-135b mimic and negative control(NC)were transfected into H2O2-induced cardiomyocytes to evaluate the effect of overexpression of miR-135b on the levels of reactive oxygen species(ROS)and apoptosis.Results:Our results showed that overexpression of miR-135b had protective effect on cardiomyocyte injury both in vivo and in vitro.MiR-135b inhibited cardiomyocyte apoptosis and ROS generation,downregulated pro-apoptosis proteins(cleaved-caspase-3 and Bax),and increased anti-apoptosis protein(Bcl-2).Moreover,miR-135b showed an inhibitory effect on apoptosis-related protein target transient receptor potential vanilloid-type 4(TRPV4)cation channel.Conclusion:MiR-135b might be considered a new molecular target for potential replacement therapy as antiapoptotic cardioprotection in the setting of MI. 展开更多
关键词 myocardial infarction apoptosis microRNA-135b TRPV4
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LncRNA CFAR promotes cardiac fibrosis via the miR-449a-5p/LOXL3/mTOR axis 被引量:8
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作者 Mingyu Zhang Bowen Zhang +12 位作者 Xiaohan Wang Jiahang Song Ming Tong Zheng Dong Jiaonan Xu Meng Liu Yuan Jiang Ning Wang Ying Wang zhimin du Yanyan Liu Rong Zhang Chaoqian Xu 《Science China(Life Sciences)》 SCIE CAS CSCD 2023年第4期783-799,共17页
Cardiac fibrosis is one of the crucial pathological factors in the heart,and various cardiac conditions associated with excessive fibrosis can eventually lead to heart failure.However,the exact molecular mechanism of ... Cardiac fibrosis is one of the crucial pathological factors in the heart,and various cardiac conditions associated with excessive fibrosis can eventually lead to heart failure.However,the exact molecular mechanism of cardiac fibrosis remains unclear.In the present study,we show that a novel lnc RNA that we named cardiac fibrosis-associated regulator(CFAR)is a profibrotic factor in the heart.CFAR was upregulated in cardiac fibrosis and its knockdown attenuated the expression of fibrotic marker genes and the proliferation of cardiac fibroblasts,thereby ameliorating cardiac fibrosis.Moreover,CFAR acted as a ce RNA sponge for mi R-449a-5p and derepressed the expression of LOXL3,which we experimentally established as a target gene of mi R-449a-5p.In contrast to CFAR,mi R-449a-5p was found to be significantly downregulated in cardiac fibrosis,and artificial knockdown of mi R-449a-5p exacerbated fibrogenesis,whereas overexpression of mi R-449a-5p impeded fibrogenesis.Furthermore,we found that LOXL3 mimicked the fibrotic factor TGF-β1 to promote cardiac fibrosis by activating m TOR.Collectively,our study established CFAR as a new profibrotic factor acting through a novel mi R-449a-5p/LOXL3/m TOR axis in the heart and therefore might be considered as a potential molecular target for the treatment of cardiac fibrosis and associated heart diseases. 展开更多
关键词 CFAR miR-449a-5p LOXL3 MTOR cardiac fibrosis
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Incidence of Major Adverse Cardiovascular and Cerebrovascular Events in Chinese Patients Undergoing Percutaneous Coronary Intervention with Iodixanol: An Observational Postauthorization Study
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作者 Xiaozeng Wang Dengfeng Ma +13 位作者 Tianchang Li Bao Li Xi Su Yanqing Wu zhimin du Zheng Ji Ping Yang Baisong Yang Xuebin Cao Junxia Li Fengxia Hou Ziping Cheng Banglong Xu Yaling Han 《Cardiology Discovery》 2023年第2期95-101,共7页
Objective:This study aimed to evaluate the major adverse cardiovascular and cerebrovascular events(MACCEs)and overall safety profile associated with iodixanol in Chinese patients undergoing percutaneous coronary inter... Objective:This study aimed to evaluate the major adverse cardiovascular and cerebrovascular events(MACCEs)and overall safety profile associated with iodixanol in Chinese patients undergoing percutaneous coronary intervention(PCI).Methods:Patients at 30 centers in China registered in the OpenClinic v3.6 database from October 30,2013,to October 7,2015,were included in the study.The primary endpoint was in-hospital MACCEs including target lesion revascularization(TLR),stroke,stent thrombosis,cardiac death,and PCI-related myocardial infarction(MI)within 72 h post-PCI.Secondary endpoints were MACCEs from 72 h to 30 d post-PCI and other safety events within 30 d post-PCI.Results:A total of 3,042 patients were enrolled.The incidence of MACCEs within 72 h post-PCI was 2.33%(n=71),including cardiac death(0.03%,n=1)and PCI-related MI(2.30%,n=70).The incidence of MACCEs from 72 h to 30 d post-PCI was 0.16%(n=5),including cardiac death(0.10%,n=3),PCI-related MI(0.03%,n=1),and TLR for stent thrombosis(0.03%,n=1).The incidence of composite angiographic or procedural complications was 2.86%(n=87);233(7.86%)patients had results suggesting contrast-induced acute kidney injury.Conclusions:These findings indicate that the use of iodixanol in Chinese patients undergoing PCI is associated with a low incidence of MACCEs,confirming its safety in this population. 展开更多
关键词 Percutaneous coronary intervention Contrast medium Adverse event Major adverse cardiovascular and cerebrovascular event Contrast-induced acute kidney injury
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Multi-sensor information fusion based control for VAV systems using thermal comfort constraints 被引量:6
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作者 Xu Zhu Taotao Shi +1 位作者 Xinqiao Jin zhimin du 《Building Simulation》 SCIE EI CSCD 2021年第4期1047-1062,共16页
The conventional control methods of variable air volume (VAV) air conditioning systems usually assume that the indoor air is well mixed, and consider each building zone as one node with homogeneous temperature distrib... The conventional control methods of variable air volume (VAV) air conditioning systems usually assume that the indoor air is well mixed, and consider each building zone as one node with homogeneous temperature distribution. The average temperature is subsequently used as the controlled parameter in the VAV cascade control process, which might cause uneven temperature distribution and unsatisfactory thermal comfort. This paper presents a coupled simulation of computational fluid dynamics (CFD) and building energy simulation (BES) for the VAV system in an office building located in Shanghai for the purpose of simulating the building, the VAV control system, and indoor thermal environment simultaneously. An external interface is developed to integrate the CFD and BES models based on quasi-dynamic coupling approach. Based upon the developed co-simulation platform, the novel VAV control method is further proposed by fusing information from multiple sensors. By adding two temperature sensors to constrain the thermal comfort of the occupied zone, the supply air temperature setpoint of the VAV terminal unit can be reset in real time. The novel control method is embedded into the co-simulation platform and compared with the conventional VAV control approach. The results illustrate that the temperature distribution under the proposed method is more uniform. At most times of the typical test day, the air diffusion performance indexes (ADPIs) for the proposed method are above 80%, while the ADPIs for the conventional control method are between 60% and 80%. Due to multi-sensor information fusion, the proposed VAV control approach has better ability to ensure the indoor thermal comfort. 展开更多
关键词 coupled simulation thermal comfort multi-sensor information fusion VAV control
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