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Rheostatic Control of ABA Signaling through HOS15-Mediated OST1 Degradation

Molecular Plant 2019年第11期12卷 1447-1462页

作者： Akhtar Ali Jae Kyoung Kim Masood Jan Haris Ali Khan Irfan Ullah Khan Mingzhe Shen Junghoon Park Chae Jin Lim Shah Hussain Dongwon baek Kai Wang Woo Sik chung Vicente Rubio Sang Yeol Lee Zhizhong Gong Woe Yeon Kim Ray ABressan Jose MPardo Dae-Jin Yun Department of Biomedical Science&Engineering Konkuk UniversitySeoul 05029South Korea Department of Mathematical Sciences Korea Advanced Institute of Science and TechnologyDaejeon 34131Korea Division of Applied Life Science Plant Molecular Biology and Biotechnology Research CenterGyeongsang National UniversityJinju 660-701South Korea State Key Laboratory of Plant Physiology and Biochemistry College of Biological SciencesChina Agricultural UniversityBeijing 100193China Centro Nacional de Biotecnologia-CSIC Darwin 3.Campus de la UAM.Cantoblanco28049 MadridSpain Department of Horticulture and Landscape Architecture Purdue University625 Agriculture Mall DriveWest LafayetteIN 47907-2010USA lnstituto de Bioquimica Vegetal y Fotosintesis cicCartujaCSIC-Universidad de SevillaAmericoVespucio 49Sevilla 41092Spain

Dehydrating stresses trigger the accumulation of abscisic acid(ABA),a key plant stress-signaling hormone that activates Snf1-Related Kinases(SnRK2s)to mount adaptive ***,the regulatory circuits that terminate the SnRK2s signal relay after acclimation or post-stress conditions remain to be ***,we show that the desensitization of the ABA signal is achieved by the regulation of OST1(SnRK2.6)protein stability via the E3-ubiquitin ligase *** ABA signal,HOS15-induced degradation of OST1 is inhibited and stabilized OST1 promotes the stress *** the ABA signal terminates,protein phosphatases ABI1/2 promote rapid degradation of OST1 via ***,we found that even in the presence of ABA,OST1 levels are also depleted within hours of ABA signal *** unexpected dynamics of OST1 abundance are then resolved by systematic mathematical modeling,demonstrating a desensitizing feedback loop by which OST1-induced upregulation of ABI1/2 leads to the degradation of *** model illustrates the complex rheostat dynamics underlying the ABA-induced stress response and desensitization.

关键词： ABA signaling drought stress HOS15 OST1 ABI1/2 protein degradation and stability

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Efficacy of horse oil on lipopolysaccharide-induced inflammation in human keratinocytes

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Journal of Traditional Chinese Medicine 2021年第3期41卷 355-359页

作者： In Wook Kim Hyo-Soon Jeong Hye-Young Yun Kwang Jin baek Nyoun Soo Kwon Dong-Seok Kim Department of Biochemistry Chung-Ang University College of MedicineSeoul 06974Republic of Korea

OBJECTIVE: To investigate the efficacy of horse oil on lipopolysaccharide(LPS)-induced inflammation in human ***: Western blot analysis was performed to measure the expression of cyclooxygenase-2(COX-2) and IκBα. ELISA was used to analyze prostaglandin E2(PGE2) ***: Horse oil decreased LPS-induced COX-2 and PGE2 levels in a dose-dependent manner. Nuclear factor-kappa B(NF-κB) plays a key role in the expression of inflammatory cytokines and mediators. Therefore, we investigated the influence of horse oil on the NF-κB signaling pathways. Horse oil inhibited translocation of NF-κB from the cytosol to the nucleus. Furthermore, LPS-induced degradation of IκBα was recovered by horse oil. The activation of p38 mitogen-activated protein kinase(MAPK) reportedly induces degradation of IκBα In agreement with this, LPS activated p38 MAPK and caused IκBα degradation. Conversely, horse oil inhibited LPS-induced p38 MAPK activation and IκBαdegradation. In addition, a specific p38 MAPK inhibitor, SB203580, blocked IκBα ***: Horse oil decreased COX-2 and PGE2 by inhibiting p38 MAPK activation, IκBα degradation, and the translocation of NF-κB.

关键词： horse oil inflammation keratinocytes NF-kappa B cyclooxygenase 2 mitogen-activated protein kinase lipopolysaccharides dinoprostone

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Overexpression of Arabidopsis YUCCA6 in Potato Results in High-Auxin Developmental Phenotypes and Enhanced Resistance to Water Deficit

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Molecular Plant 2013年第2期6卷 337-349页

作者： Jeong Im Kim Dongwon baek Hyeong Cheol Park Hyun Jin Chun Dong-Ha Oh Min Kyung Lee Joon-Yung Cha Woe-Yeon Kim Min Chul Kim Woo Sik chung Hans J. Bohner Sang Yeol Lee Ray A. Bressan Shin-Woo Lee Dae-Jin Yun Department of Biochemistry Purdue University West Lafayette IN 47907 USA Division of Applied Life Science (BK21 and WCU Program) Plant Molecular Biology and Biotechnology Research Center Gyeongsang National UniversityJinju 660-701 Republic of Korea Department of Plant Biology University of Illinois at Urbana-Champaign Urbana IL USA Department of Agronomy and Medicinal Plant Resources Gyeongnam National University of Science and Technology Jinju 660-758 Korea Faculty of Science King Abdulaziz University Jeddah 21589 KSA Department of Horticulture Purdue University West Lafayette IN 47907 USA

Indole-3-acetic acid （IAA）, a major plant auxin, is produced in both tryptophan-dependent and tryptophan-independent pathways. A major pathway in Arabidopsis thaliana generates IAA in two reactions from tryptophan. Step one converts tryptophan to indole-3-pyruvic acid （IPA） by tryptophan aminotransferases followed by a rate-limiting step converting IPA to IAA catalyzed by YUCCA proteins. We identified eight putative StYUC （Solanum tuberosum YUCCA） genes whose deduced amino acid sequences share 50%-70% identity with those of Arabidopsis YUCCA proteins. All include canonical, conserved YUCCA sequences： FATGY motif, FMO signature sequence, and FAD-binding and NADP-binding sequences. In addition, five genes were found with -50% amino acid sequence identity to Arabidopsis trypto-phan aminotransferases. Transgenic potato （Solanum tuberosum cv. Jowon） constitutively overexpressing Arabidopsis AtYUC6 displayed high-auxin phenotypes such as narrow downward-curled leaves, increased height, erect stature, and longevity. Transgenic potato plants overexpressing AtYUC6 showed enhanced drought tolerance based on reduced water loss. The phenotype was correlated with reduced levels of reactive oxygen species in leaves. The results suggest a func-tional YUCCA pathway of auxin biosynthesis in potato that may be exploited to alter plant responses to the environment.

关键词： Solanum tuberosum potato Arabidopsis thaliana yuc6-1D YUCCA, StYUCCA, StTAA, auxin, drought.

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Optical and electric probe diagnostics of O2-Ar inductively coupled discharges

Optical and electric probe diagnostics of O2-Ar inductively ...

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第三届微电子及等离子体技术国际会议

作者： Young Wook Lee Hye-lan Lee Hea Min Joh Tae hun chung Department of Physics Dong-A University

Optical emission spectroscopy combined with a Langmuir probe measurement was conducted in inductively coupled rf 13.56 MHz O2-Ar discharges under the pressures in the range of 1-30 mTorr and the applied rf powers of 200-600 *** Ar content in the gas mixture was varied from 5 % to 80 %.The variation of the intensities of various spectral lines was investigated to predict the concentrations of species of interest in different *** the optical emission actinometry,the dissociation fraction was estimated and the neutral atom density was *** the Langmuir probe,the electron energy probability function（EEPF）,the electron density and the electron temperature were *** methods of the evaluation of the probe I-V data were utilized and *** effects of power,pressure,and Ar content on the plasma parameters and dissociation were *** was found that the dissociation fraction increases with the power and the Ar *** electron density was found to increase with the Ar content and with the power while the electron temperature decreased with these control *** characteristics of the E-H mode transition were also *** the control parameters varying,the changes of the transition threshold power and the electron energy distribution function（EEDF） are explored.

关键词： O2-Ar inductive discharges Optical emission spectroscopy Langmuir probe measurement

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Effect of esmolol and lidocaine on agitation in awake phase of anesthesia among children:a double-blind,randomized clinical study

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Chinese Medical Journal 2019年第7期132卷 757-764页

作者： Jae Young Ji Jin Soo Park Ji Eun Kim Da Hyung Kim Jin hun chung Hea Rim Chun Ho Soon Jung Sie Hyeon Yoo Department of Anesthesiology and Pain Medicine Soonchunhyang University Hospital Cheonan31Soonchunhyang 6-gilDongnam-guCheonan-siChungcheongnam-do 330-721Korea

Background:Sevoflurane is widely used to anesthetize children because of its rapid action with minimal irritation of the ***,there is a high risk of agitation after emergence from *** surgery,in particular,can trigger agitation because patients have their eyes covered in the postoperative *** aim of this study was to determine whether or not esmolol and lidocaine could decrease emergence agitation in ***:Eighty-four patients aged 3 to 9 years undergoing strabismus surgery were randomly assigned to a control group(saline only),a group that received intravenous lidocaine 1.5 mg/kg,and a group that received intravenous esmolol 0.5 mg/kg and lidocaine 1.5 mg/*** was measured using the objective pain score,Cole 5-point score,and Richmond Agitation Sedation Scale score at the end of surgery,on arrival in the recovery room,and 10 and 30 min after ***:The group that received the combination of esmolol and lidocaine showed lower OPS and RASS scores than the other two groups when patients awoke from anesthesia(OPS=0(0-4),RASS=-4[(-5)-1])and were transferred to the recovery room(OPS=0(0-8),RASS=-1[(-5)-3])(P0.05).Conclusions:When pediatric strabismus surgery is accompanied by sevoflurane anesthesia,an intravenous injection of esmolol and lidocaine could alleviate agitation until arrival in the recovery room.

关键词： Agitation Esmolol Lidocaine Sevoflurane

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Distribution of Eye Diseases in Kasungu District, Malawi, Central Africa—A Retrospective Cross-Sectional Study

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Advances in Infectious Diseases 2018年第2期8卷 64-69页

作者： Richard Kang Jae Jun Kim Paul chung Gyuri Hwang Jung Sung Kim Seunghan baek Eun Jung Im George Talama The School of Public Health UC Berkeley Berkeley CA USA College of Agriculture and Life Sciences Cornell University Ithaca NY USA The Biology Department Allegheny College Meadville PA USA Korea International School Gyeonggi-do South Korea Henry M. Gunn High School Palo Alto California USA Department of Computer Science Johns Hopkins University Baltimore MD USA Classics College of Letters Arts and Sciences USC LA USA Kasungu District Hospital Kasungu Malawi

Analysis of eye diseases of patients at Kasungu District Hospital in Malawi was made. Malawi is one of the poorest countries in the world and the health system faces a lot challenges in terms of resources. The study was, therefore, done to understand the burden and distribution of eye diseases in this resource-limited setting. A retrospective study was conducted by extracting data from data registers in the outpatient eye department for the period of May 2015 to June 2016. The data of the reported eye diseases analyzed with variables such as patient gender, eye disease type, patient age and times of the year. There was no association between eye diseases and gender nor with times of the year. However, it was noted that the commonest type of eye disease was conjunctivitis. And, there was strong association of some disease type with age, for example, conjunctivitis was common in young age group while cataract was common in the elderly. It was shown in this study that many of the eye diseases endemic in Africa do generally occur in this selected district as well. However, the analysis presents the possibility of reducing the incidences of many diseases by preventive measures and access to health facilities on time.

关键词： Eye Diseases Kasungu District Malawi

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Global Genomic Variations of Pathogenic Bacteria <i>Salmonella</i>Reading

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Computational Molecular Bioscience 2021年第3期11卷 57-68页

作者： Woo Hyung Lee Yein Jeon Jonathan S. chung Woo Jun Shim Min Jae Shin Seok Gyu Han Seunghan baek James Kim Jaewoo Kim Paul S. chung Biotechnology School of Sciences Hong Kong University of Science of Technology Hong Kong China Fuzbien Technology Institute Rockville USA Ernest Mario School of Pharmacy Rutgers University New Brunswick USA College of Letters & Sciences University of California Los Angeles USA Biology Bachelor of Science California Institute of Technology Pasadena USA School of Arts & Sciences Johns Hopkins University Baltimore USA School of Arts & Sciences University of Michigan Ann Arbor USA Youth with Talents Fairfax USA

US Centers for Disease Control and Prevention (CDC) estimates food-borne pathogenic Salmonella bacteria cause about 1.35 million infections, 26,500 hospitalizations, and 420 deaths in the U.S. every year. Outbreaks of multidrug-resistant Salmonella Reading linked mainly to raw turkey products and alfalfa sprouts have accounted for human illness including mortality. Therefore, we downloaded and compared genome sequences of 897 Salmonella Reading isolated from 27 resources in 11 countries at 21 year-points from the National Center for Biotechnology Information database. Isolates were clustered into 10 clades which consisted of 3 major and 7 minor or single node clades. Although 3 major clades included both Europe and American isolates, one clade consisted of 605 North American isolates out of 614 isolates. Evolutionary distance is more related to the continent than the source of isolation. The host source, continent (North America and Europe) and phylogenetic clade were related to the prevalence of isolates encoding Antimicrobial Resistance Genes (ARGs). Prevalence of prophages was greater in bovine and swine isolates than poultry and human isolates and the least prevalence was found in human isolates. Between continents, the prevalence of phage was greater in North Ame- rican isolates than European. The diversity of virulence factors in swine isolates differed from poultry isolate while no difference was found among continents. In conclusion, evolutionary distance is related to isolation host source rather than the continent, and genome features were distinguished by host and cluster. Our genomic analysis implies that Salmonella Reading evolved independently to environments within its lineages.

关键词： Salmonella Serovar Reading Genome Antimicrobial Resistance Genes Virulence Factors Phylogenomic Tree

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Proxy-Based Hierarchical Distributed Mobility Management for Tactical Networks

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Computers, Materials & Continua 2022年第2期70卷 2381-2399页

作者： Myoung-hun Han Bong-Soo Roh Kyungwoo Kim Dae-Hoon Kwon Jae-Hyun Ham KyungHyun Yoon Sanghyun Seo Agency for Defense Development Daejeon34186Korea Department of Computer Science and Engineering Chung-Ang UniversitySeoul06974Korea College of Art&Technology Chung-Ang UniversityAnseong17546Korea

An important requirement in a military domain is a highly reliable mobility management method,especially when components of the networks aremoving in tactical network *** increase reliability,themobility management technology of the tactical network should be able to reflect the characteristics of the tactical network,such as a limited environment,failure,and hierarchical unit *** this paper,we propose a proxy-based hierarchical distributedmobilitymanagement scheme,which is highly focused on tactical *** the characteristics of tactical networks,the proposed scheme is composed of the following:1)a proxy-based method,2)a distributed mobility management method that synchronizes a mobility database between entities,and 3)a method of managing mobility by dividing the tactical network into upper and lower *** analysis and modeling and simulation results demonstrate that the method outperforms the existing state-of-the-art method in overcoming entity failure,handover cost,and delay in tactical environments.

关键词： Mobility management tactical networks PMIP DMM

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Fabrication of Indium-Tin Alloy and Oxide Nanowires Using Extrusion Molding Process in the Air

Fabrication of Indium-Tin Alloy and Oxide Nanowires Using Ex...

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2014 International Conference on Green Materials and Environmental Engineering (GMEE2014)

作者： Shih-hsun Chen Chien-wan hun chung-yi Chou Jin-shyong Lin Ying-hao Chu Department of Materials Science and Engineering “National Chiao Tung University” Department of Mechanical Engineering “National United University” Department of Mechanical Engineering “National Chin-Yi University of Technology”

A simple method to indium tin alloy and oxide nanowires were achieved by using the extrusion molding process in the air. Eutectic indium tin bulk were firstly injected into AAO templates. After dissolving AAO, the indium tin nanowires were collected in ethanol. Furthermore, in order to have oxide nanowires, alloy nanowires were directly oxidized by heat treatment in the air below its melting point for 24 hours. Finally, crystalline indium-tin oxide and indium oxide nanowires with diameters 90-110 nm and lengths 2-20 μm were obtained.

关键词： Indium tin oxide Nanowire AAO

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Benidipine has effects similar to losartan on the central blood pressure and arterial stiffness in mild to moderate essential hypertension

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Chinese Medical Journal 2013年第11期126卷 2021-2028页

作者： Sang-Hyun Ihm Hui-Kyung Jeon Shung Chull Chae Do-Sun Lim Kee-Sik Kim Dong-Ju Choi Jong-Won Ha Dong-Soo Kim Kye hun Kim Myeong-Chan Cho Sang Hong baek Division of Cardiology College of Medicine The Catholic University of Korea Seoul Republic of Korea Jeon HK and baek SH) Department of Internal Medicine Kyungpook National University Hospital Daegu Republic of Korea Division of Cardiology Korea University Anam Hospital SeoulRepublic of Korea Division of Cardioiogy Daegu Catholic University Medical Center Daegu Republic of Korea Division of Cardiology Seoul National University Bundang Hospital Seongnam Republic of Korea Cardiology Division Yonsei Cardiovascular Center Yonsei University College of Medicine Seoul Republic of Korea Division of Cardiology Inje University College of Medicine Busan Paik Hospital Busan Republic of Korea Heart Research Center of Chonnam National University Hospital Gwangju Republic of Korea Department of Internal Medicine Chungbuk National University Hosoital. Cheon~iu. Republic of Korea

Background Central blood pressure （BP） is pathophysiologically more important than peripheral BP for the pathogenesis of cardiovascular disease. Arterial stiffness is also a good predictor of cardiovascular morbidity and mortality. The effects of benidipine, a unique dual L-IT-type calcium channel blocker, on central BP have not been reported. This study aimed to compare the effect of benidipine and Iosartan on the central BP and arterial stiffness in mild to moderate essential hypertensives. Methods This 24 weeks, multi-center, open label, randomized, active drug comparative, parallel group study was designed as a non-inferiority study. The eligible patients （n=200） were randomly assigned to receive benidipine （n=101） or Iosartan （n=99）. Radial artery applanation tonometry and pulse wave analysis were used to measure the central BP, pulse wave velocity （PWV） and augmentation index （AIx）. We also measured the metabolic and inflammatory markers. Results After 24 weeks, the central BP decreased significantly from baseline by （16.8±14.0/10.5±9.2） mmHg （1 mmHg =0.133 kPa）（systolic/diastolic BP; P 〈0.001） in benidipine group and （18.9±14.7/12.1±10.2） mmHg （P 〈0.001） in Iosartan group respectively. Both benidipine and Iosartan groups significantly lowered peripheral BP （P 〈0.001） and AIx （P 〈0.05）, but there were no significant differences between the two groups. The mean aortic, brachial and femoral PWV did not change in both groups after 24-week treatment. There were no significant changes of the blood metabolic and inflammatory biomarkers in each group. Conclusion Benidipine is as effective as Iosartan in lowering the central and peripheral BP, and improving arterial stiffness.

关键词： calcium channel blocker central blood pressure hypertension arteries stiffness

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