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Effects of Salvia miltiorrhiza Bunge extract and its single components on monosodium urate-induced pain in vivo and lipopolysaccharide-induced inflammation in vitro

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Journal of Traditional Chinese Medicine 2021年第2期41卷 219-226页

作者： FENG Jinghui Set Byeol Kim Hee Jung Lee Su Min Sim Soon Sung Lim hong won suh Department of Pharmacology College of MedicineHallym UniversityChuncheon 200-702South Korea Department of Food Sciences and Nutrition College of NaturalHealthand Life SciencesHallym UniversityChuncheon 200-702Republic of

OBJECTIVE:To investigate the possible antinociceptive effects of Salvia(S.)miltiorrhiza Bunge and its single components in monosodium urate(MSU)-induced pain model in mice and lipopolysaccharide(LPS)-induced inflammation model in RAW264.7 cells.METHODS:Pretreatment of S.miltiorrhiza Bunge extract(from 1 to 50μg/mL)concentration-dependently attenuated LPS-induced nitric oxide(NO)release.The extract of S.miltiorrhiza Bunge(50 or 100 mg/kg)also caused reversals of decreased threshold for pain in the MSU-treated group as measured by Von-Frey test.Furthermore,we assessed the antinociceptive and anti-inflammatory properties of the active single components from S.miltiorrhiza Bunge such as 15,16-dihydrotanshinoneⅠ,tanshinoneⅠ,cryptotanshinone,miltirone,tanshinoneⅡA,and salvianolic acid B.Some of them showed an anti-inflammatory effect in LPS-induced NO release model and an antinociceptive effect in MSU-treated pain model.RESULTS:Our results suggest that S.miltiorrhiza Bunge extract may exert anti-inflammatory effect by reducing LPS-induced NO release and an antinociceptive property in MSU-treated pain model.Especially,tanshinoneⅡA,miltirone,cryptotanshinone,and 15,16-dihydrotanshinoneⅠ,not only appear to be responsible for LPS-induced NO release induced by S.miltiorrhiza Bunge,but also in the production of S.miltiorrhiza Bunge extract-induced antinociception in MSU-treated pain model.CONCLUSION:Therefore,the analgesic and anti-inflammatory property of S.miltiorrhiza Bunge indicate it as a therapeutic potential candidate for the treatment of pain and inflammation.

关键词： Salvia miltiorrhiza lipopolysaccharides nitric oxide inflammation analgesics

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Possibility of Solid Hydrometeor Growth Zone Identification Using Radar Spectrum Width

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Advances in Atmospheric Sciences 2023年第2期40卷 317-332页

作者： Sung-Ho suh Eun-Ho CHOI hong-Il KIM Woonseon JUNG Flight Safety Technology Division NARO Space CenterKorea Aerospace Research Institute(KARI)508 Haban-roBongrae-myeonGoheung-gunJeollanam-do 59571Republic of Korea Research Applications Department National Institute of Meteorological Sciences33Seohobuk-roSeoqwipo-siJeju-do 63568Republic of Korea

In this study,the correlation between simulated and measured radar velocity spectrum width(σ_(v))is investigated.The results show that the dendrites growth zones(DGZs)and needles growth zones(NGZs)mostly contain dendrites(DN)and needles(NE),respectively.Clearσ_(v) zones(1.11.2 m s^(-1),a differential reflectivity(ZDR)higher than 0 dB,and a cross-correlation coefficient(ρhv)less than 0.96.In contrast,prolate particles with relatively uniform shapes were observed in the NGZ withσ_(v)<0.6 m s^(-1),a ZDR less than 0 dB,andρhv higher than 0.97.The simulation results show that the DN exhibited a largerσ_(v) compared to the NE,and this observedσ_(v) was strongly dependent on the wind fluctuations(v’)due to turbulence or wind shear.In contrast,the NE exhibited a significantly smallσ_(v)~0.55 m s^(-1),which converges irrespective of v’.In addition,a strong correlation between the measuredσ_(v) values at five radar elevation angles(θ=6.2°,9.1°,13.1°,19°,and 80°)and those simulated in this study confirmed the significance of the analysis results.

关键词： spectrum width weather radar aerodynamic properties dendritic growth zone hydrometeor classifications

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Protective effects of a polymethoxy flavonoids-rich Citrus aurantium peel extract on liver fibrosis induced by bile duct ligation in mice

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Asian Pacific Journal of Tropical Medicine 2016年第12期9卷 1135-1141页

作者： Seol-Wa Lim Dong-Ryung Lee Bong-Keun Choi hong-Suk Kim Seung Hwan Yang Joo-won suh Kyung Soo Kim Graduate School of Biomedicine & Health Sciences Catholic University Nutra Pharm Tech Interdisciplinary Program of Biomodulation Myongji University Department of Biotechnology Chonnam National University Center for Nutraceutical and Pharmaceutical Materials Myongji University

Objective: To evaluate the possible protective effect of Citrus aurantium peel extract(CAE) against apoptosis in cholestatic liver fibrosis induced by bile duct ligation in mice. Methods: Male ICR mice were divided to 5 groups: 1) Control group(Sham-operated mice), 2) Cholestatic liver injury group induced by bile duct ligation(BDL), 3) BDL mice treated with silymarin(200 mg/kg) for 4 weeks, 4) BDL mice treated with 50 mg/kg CAE for 4 weeks, 5) BDL mice treated with 200 mg/kg CAE for 4 weeks. Mice were sacrificed and liver fibrosis was evaluated by serum and hepatic tissue biochemistry tests and liver histopathological examination. Effects of CAE on inflammation and apoptosis gene regulation were investigated through real-time PCR. CAE effect on lipid metabolism related signaling was determined by western blot analysis. Results: In BDL mice, administration of CAE for 4 weeks markedly attenuated liver fibrosis based on histopathological alteration. Serum and hepatic tissue biochemistry results revealed that CAE(50 and 200 mg/kg) decreased the levels of alanine transaminase, aspartate transaminase, gamma glutamyl transferase, total bilirubin, nitric oxide, and thiobarbituric acid reactive substances. Real-time PCR and western blot analysis showed that CAE regulated inflammation, apoptosis, and lipid metabolism factors increased by BDL. Interleukin family, tumor necrosis factor α, and related apoptosis factors m RNA levels were increased by BDL treatment. However, these increases were suppressed by CAE administration. In addition, CAE effectively increased phosphorylation of AMPactivated protein kinase, nuclear factor E2-related factor 2, and related cytoprotective proteins. Conclusions: CAE can efficiently regulate BDL-induced liver injury with antioxidant, antiinflammatory, and antiapoptotic activities.

关键词： Liver injury Bile duct ligation Cholestasis Citrus aurantium peel extract Hepatic fibrosis

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Effect of molybdenum on interfacial properties of titanium carbide reinforced Fe composite

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Journal of Materials Science & Technology 2022年第12期107卷 252-258页

作者： Seungchan Cho Junghwan Kim Ilguk Jo Jae Hyun Park Jaekwang Lee Hyun-Uk hong Bong Ho Lee Wook Ryol Hwang Dong-Woo suh Sang-Kwan Lee Sang-Bok Lee Composites Research Division Korea Institute of Materials Science(KIMS)Changwon 51508South Korea Advanced Materials Engineering Dong-Eui UniversityBusan 47340South Korea Department of Aerospace and Software Engineering Gyeongsang National UniversityJinju 52828South Korea Department of Physics Pusan National UniversityBusan 46241South Korea Department of Materials Convergence and System Engineering Changwon National UniversityChangwon 51140South Korea Center for Core Research Facilities Daegu Gyeongbuk Institute of Science and TechnologyDaegu 42988South Korea School of Mechanical Engineering Gyeongsang National UniversityJinju 52828South Korea Graduate Institute of Ferrous Technology Pohang University of Science and TechnologyGyeongbuk 37673South Korea

This study shows that the mechanical strength of the composite of Fe matrix and titanium carbide(Ti C)ceramic particles is significantly enhanced with addition of molybdenum(Mo) atoms. Ti C reinforced Fe(Fe-0.2C-7Mn) composites with and without Mo were fabricated by a liquid pressing infiltration(LPI)process and the effect of Mo on interfacial properties of TiC–Fe composite was investigated using atomic probe tomography(APT) analysis, molecular dynamics(MD) simulations, first-principle density functional theory(DFT), and thermodynamic calculations. First, DFT calculations showed that total energies of the Mo-doped Ti C–Fe superlattices strongly depend on the position of Mo defects, and are minimized when the Mo atom is located at the TiC/Fe interface, supporting the probable formation of MoC-like interphase at the TiC/Fe interface region. Then, APT analysis confirmed the DFT predictions by finding that about6.5 wt.% Mo is incorporated in the Ti C–Fe(Mo) composite and that sub-micrometer thick(Ti,Mo)C interphase is indeed formed near the interface. The MD simulations show that Mo atoms migrate to the Mo-free TiC–Fe interface at elevated temperatures and the mechanical strength of the interface is considerably enhanced, which is in good agreement with experimental observations.

关键词： Metal matrix composites(MMCs) Titanium carbide Fe matrix composite Infiltration Molybdenum Interfacial property

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The ERα/KDM6B regulatory axis modulates osteogenic differentiation in human mesenchymal stem cells

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Bone Research 2022年第1期10卷 95-106页

作者： Zhenqing Liu Hye-Lim Lee Jin Sook suh Peng Deng Chang-Ryul Lee Olga Bezouglaia Mojan Mirnia Vivian Chen Michael Zhou Zhong-Kai Cui Reuben HKim Min Lee Tara Aghaloo Christine hong Cun-Yu Wang Division of Oral Biology and Medicine School of DentistryUniversity of CaliforniaLos Angeles(UCLA)Los AngelesCA 90095USA Department of Anatomy&Neurobiology University of CaliforniaIrvine(UCI)IrvineCA 92697USA Department of Orofacial Sciences School of DentistryUniversity of CaliforniaSan Francisco(UCSF)San FranciscoCA 94143USA School of Dentistry University of CaliforniaSan Francisco(UCSF)San FranciscoCA 94143USA Division of Diagnostic and Surgical Sciences School of DentistryUniversity of CaliforniaLos Angeles(UCLA)Los AngelesCA 90095USA School of Dentistry University of CaliforniaLos Angeles(UCLA)Los AngelesCA 90095USA Division of Advanced Prosthodontics School of DentistryUniversity of CaliforniaLos Angeles(UCLA)Los AngelesCA 90095USA Division of Constitutive and Regenerative Sciences School of DentistryUniversity of CaliforniaLos Angeles(UCLA)Los AngelesCA 90095USA Department of Bioengineering University of CaliforniaLos Angeles(UCLA)Los AngelesCA 90095USA

Osteoporosis is a highly prevalent public health burden associated with an increased risk of bone fracture, particularly in aging women. Estrogen, an important medicinal component for the preventative and therapeutic treatment of postmenopausal osteoporosis, induces osteogenesis by activating the estrogen receptor signaling pathway and upregulating the expression of osteogenic genes, such as bone morphogenetic proteins(BMPs). The epigenetic regulation of estrogen-mediated osteogenesis,however, is still unclear. In this report, we found that estrogen significantly induced the expression of lysine-specific demethylase 6B(KDM6B) and that KDM6B depletion by shRNAs led to a significant reduction in the osteogenic potential of DMSCs.Mechanistically, upon estrogen stimulation, estrogen receptor-α(ERα) was recruited to the KDM6B promoter, directly enhancing KDM6B expression. Subsequently, KDM6B was recruited to the BMP2 and HOXC6 promoters, resulting in the removal of H3K27me3 marks and activating the transcription of BMP2 and HOXC6, the master genes of osteogenic differentiation. Furthermore, we found that estrogen enhanced DMSC osteogenesis during calvarial bone regeneration and that estrogen’s pro-osteogenic effect was dependent on KDM6B in vivo. Taken together, our results demonstrate the vital role of the ERα/KDM6B regulatory axis in the epigenetic regulation of the estrogen-dependent osteogenic response.

关键词： expression stimulation ERα

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Different oncological features of colorectal cancer codon-specific KRAS mutations:Not codon 13 but codon 12 have prognostic value

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World Journal of Gastroenterology 2023年第32期29卷 4883-4899页

作者： hong-Min Ahn Duck-Woo Kim Tae Gyun Lee Hye-Rim Shin In Jun Yang Jeehye Lee Jung Wook suh Heung-Kwon Oh Sung-Bum Kang Department of Surgery Seoul National University Bundang HospitalSeongnam 13620South Korea Department of Pathology Seoul National University Bundang HospitalSeongnam 13620South Korea Department of Pathology Seoul National University HospitalSeoul 03080South Korea

BACKGROUND Approximately 40%of colorectal cancer(CRC)cases are linked to Kirsten rat sarcoma viral oncogene homolog(KRAS)mutations.KRAS mutations are associated with poor CRC prognosis,especially KRAS codon 12 mutation,which is associated with metastasis and poorer survival.However,the clinicopathological characteristics and prognosis of KRAS codon 13 mutation in CRC remain unclear.AIM To evaluate the clinicopathological characteristics and prognostic value of codonspecific KRAS mutations,especially in codon 13.METHODS This retrospective,single-center,observational cohort study included patients who underwent surgery for stage I-III CRC between January 2009 and December 2019.Patients with KRAS mutation status confirmed by molecular pathology reports were included.The relationships between clinicopathological characteristics and individual codon-specific KRAS mutations were analyzed.Survival data were analyzed to identify codon-specific KRAS mutations as recurrence-related factors using the Cox proportional hazards regression model.RESULTS Among the 2203 patients,the incidence of KRAS codons 12,13,and 61 mutations was 27.7%,9.1%,and 1.3%,respectively.Both KARS codons 12 and 13 mutations showed a tendency to be associated with clinical characteristics,but only codon 12 was associated with pathological features,such as stage of primary tumor(T stage),lymph node involvement(N stage),vascular invasion,perineural invasion,tumor size,and microsatellite instability.KRAS codon 13 mutation showed no associations(77.2%vs 85.3%,P=0.159),whereas codon 12 was associated with a lower 5-year recurrence-free survival rate(78.9%vs 75.5%,P=0.025).In multivariable analysis,along with T and N stages and vascular and perineural invasion,only codon 12(hazard ratio:1.399;95%confidence interval:1.034-1.894;P=0.030)among KRAS mutations was an independent risk factor for recurrence.CONCLUSION This study provides evidence that KRAS codon 13 mutation is less likely to serve as a prognostic biomarker than codon 12 mutation for CRC in a large-

关键词： Genes Ras Codon Colonic neoplasms Rectal neoplasms

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Measles outbreaks in the Kyeongin area of the Republic of Korea,2013-2014:A single-center experience in a country of measles elimination

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Asian Pacific Journal of Tropical Medicine 2017年第1期10卷 67-72页

作者： Sun Hyoung Park Dong Hun Lee Jang Yong Jin Young-Lim Shin Meeyong Shin Sung Shin Kim won Suk suh Jae Ock Park Yong Hee hong Department of Pediatrics College of MedicineSoonchunhyang UniversityBucheon HospitalBucheonRepublic of Korea

Objective: To identify the source of infection and determine the clinical features and laboratory finding of measles infection,Methods: In 27 measles patients,except for 3 adult patients,the rest of 24 pediatric measles cases were analyzed with regard to age,sex,immunization status,transmission routes and molecular genotyping of measles virus,Eighteen measles patients who admitted in isolation ward were set apart to investigate clinical findings and its correlation with laboratory characteristics,Retrospective analysis of cases was conducted in this study,Results: Of the 24 pediatric patients,23(95.8%) had not received any measles-containing vaccine(MCV),Sixteen of the patients(66.7%) were aged <12 months,The suspicious index case of a girl aged 34 months was not vaccinated with MCV1 and got measles after a trip to Philippines,and molecular genotype was revealed as B3,Measles outbreaks in the community such as a restaurant were followed by this one imported case,According to analysis of 18 patients admitted in isolation ward,the median level of C-reactive protein(CRP) was 0.38 mg/d L and that of lactate dehydrogenase(LDH) was 1 200 IU/L,All of the 18 patients had LDH levels above the normal range,Age correlated with CRP(ρ = 0.528,P = 0.024) and LDH(ρ = 0.501,P = 0.034),The duration of fever was correlated with the duration of fever before rash(ρ = 0.898,P < 0.01),The duration of hospitalization was correlated with CRP(ρ = 0.586,P = 0.011),The white blood cell counts were correlated with the levels of LDH(ρ = 0.505,P = 0.033),aspartate aminotransferase(ρ = 0.507,P = 0.032),and alanine aminotransferase(ρ = 0.481,P = 0.043),Conclusions: Early weaning of maternally derived measles antibodies therefore vaccination of MCV1 at a young age from 9 months to 12 months should be considered in situations of early exposure,Furthermore there is a call for consideration of scheduling an earlier age for the first dose of MMR vaccine in Europe,It is necessary for Korea to investigate the duration of the presence and quantitative

关键词： Measles Disease outbreaks Pediatrics

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Loss of FBXL14 promotes mesenchymal shift and radioresistance of non-small cell lung cancer by TWIST1 stabilization

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Signal Transduction and Targeted Therapy 2021年第8期6卷 2311-2314页

作者： Yan-hong Cui Jae-Hyeok Kang Yongjoon suh Yi Zhao Joo Mi Yi In-Hwa Bae Hae-June Lee Dong won Park Min-Jung Kim Su-Jae Lee Department of Life Science Research Institute for Natural SciencesHanyang UniversitySeoulKorea Department of Medicine Section of DermatologyUniversity of ChicagoChicagoILUSA Department of Microbiology and Immunology Inje UniversityBusanSouth Korea Division of Basic Radiation Bioscience Korea Institute of Radiological&Medical SciencesSeoulKorea Division of Radiation Effect Korea Institute of Radiological and Medical SciencesSeoulKorea Department of Internal Medicine College of MedicineHanyang UniversitySeoulKorea Laboratory of Radiation Exposure and Therapeutics National Radiation Emergency Medical CenterKorea Institute of Radiological and Medical SciencesSeoulKorea

Dear Editor,Lung cancer is the most common cause of cancer-related mortality worldwide,with non-small cell lung cancer(NSCLC)accounting for the largest number of cases.1 Ionizing radiation(IR)is widely used as an indispensable tool for treating lung cancer patients;however,the acquisition of resistance following radiation is the major obstacle for reducing the efficacy of radiotherapy.

关键词： lung cancer mortality

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Alterations of Signal Molecules and Proopionielanocortin Gene Expression in the Hypothalamus of Mice Induced by Intraplantar Formalin.

Alterations of Signal Molecules and Proopionielanocortin Gen...

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第十五届国际药理学大会

作者： Eon-Jeong Shim Young-Jun Seo Min-Soo Kwon Eun-Jung Han Jin -Young Lee Soo-Hyun Park hong-won suh Department of Pharmacology College of Medicine and Institute of Natural MedicineHallym University1 Okchun-dongChunCheonGangwondo200-702Republic of Korea Department of Pharmacology College of Medicine and Institute of Natural MedicineHallym University1 Okchun-dongChunCheonGangwondo200-702Republic of Korea Department of Pharmacology College of Medicine and Institute of Natural MedicineHallym University1 Okchun-dongChunCheonGangwondo200-702Republic of Korea Department of Pharmacology College of Medicine and Institute of Natural MedicineHallym University1 Okchun-dongChunCheonGangwondo200-702Republic of Korea Department of Pharmacology College of Medicine and Institute of Natural MedicineHallym University1 Okchun-dongChunCheonGangwondo200-702Republic of Korea Department of Pharmacology College of Medicine and Institute of Natural MedicineHallym University1 Okchun-dongChunCheonGangwondo200-702Republic of Korea Department of Pharmacology College of Medicine and Institute of Natural MedicineHallym University1 Okchun-dongChunCheonGangwondo200-702Republic of Korea

＜正＞ We examined POMC mRNA and beta - endorphin expression in mouse hypothalamus elicited by intraplantar formalin. POMC mRNA increased at 2 hr after injection,and returned to control level at 10 hr in the arcuate nu. of hypothalamus. In the tail - flick test,formalin attenuated opioids - induced antinociception. Increase of POMC was also observed after systemic morphine and attenuated by naltrexone. Thus,formalin - induced increase of hypothalamic POMC may be mediated by endogenous opioid system. We further examined alterations of signal molecules. pERK was increased within 30 min and remained at a high level up to 10 hr in the arcuate nu..pCaMKII was increased within 2 hr but decreased at 10 hr. However. POMC mRNA expression was reduced by pretreatment with PD98059 or KN93. Furthermore. pIkB was increased at 2 hr and remained at high level up to 10 hr. Using confocal IF. we confirmed that cells contain beta - endorphin after formalin also express pERK. pCaMKII and pIkB. In conclusion. POMC mRNA expression in arcuate nu. of hypothalamus induced by intraplantar formalin may be mediated by pERK as well as pCaMKII. Furthermore. NFkB pathway may play an important role in the regulation of POMC gene expression.

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Enhancement of ballistic performance enabled by transformation-induced plasticity in high-strength bainitic steel

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Journal of Materials Science & Technology 2021年第25期84卷 219-229页

作者： Min Cheoljo Selim Kim Dong Woo suh hong Kyu Kim Yongjin Kim Seok Su Sohn Sunghak Lee Center for Advanced Aerospace Materials Pohang University of Science and TechnologyPohang37673South Korea Graduate Institute of Ferrous Technology Pohang University of Science and TechnologyPohang37673South Korea Materials Directorate Agency for Defense DevelopmentDaejeon305-600South Korea Department of Materials Science and Engineering Korea UniversitySeoul02841South Korea

High-strength bainitic steels have created a lot of interest in recent times because of their excellent combination of strength,ductility,toughness,and high ballistic mass efficiency.Bainitic steels have great potential in the fabrication of steel armor plates.Although various approaches and methods have been conducted to utilize the retained austenite(RA)in the bainitic matrix to control mechanical properties,very few attempts have been conducted to improve ballistic performance utilizing transformationinduced plasticity(TRIP)mechanism.In this study,high-strength bainitic steels were designed by controlling the time of austempering process to have various volume fractions and stability of RA while maintaining high hardness.The dynamic compressive and ballistic impact tests were conducted,and the relation between the effects of TRIP on ballistic performance and the adiabatic shear band(ASB)formation was analyzed.Our results show for the first time that an active TRIP mechanism achieved from a large quantity of metastable RA can significantly enhance the ballistic performance of high-strength bainitic steels because of the improved resistance to ASB formation.Thus,the ballistic performance can be effectively improved by a very short austempering time,which suggests that the utilization of active TRIP behavior via tuning RA acts as a primary mechanism for significantly enhancing the ballistic performance of high-strength bainitic steels.

关键词： High-strength bainitic steel Ballistic performance Split Hopkinson pressure bar(SHPB) Adiabatic shear band(ASB) Retained austenite(RA) Transformation-induced plasticity(TRIP)

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