• Title/Summary/Keyword: synergic effects

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Effects of Concurrent Administration of Sopunghwalhyeol-tang and Clopidogrel on Atherosclerosis in the $ApoE^{(-/-)}$ Mouse (동맥경화증이 유발된 $ApoE^{(-/-)}$ mouse에서 소풍활혈탕(疎風活血湯)과 Clopidogrel의 병용투여 효과에 대한 연구)

  • Lee, Beom-Joon;Oh, Sae-Choon;Kim, Young-Chan;Lee, Jeong-Sook;Kang, Deok-Hee;Lee, Woo-Kyoung;Lee, Young-Il;Lew, Jae-Hwan
    • The Journal of Korean Medicine
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    • v.31 no.5
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    • pp.124-135
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    • 2010
  • Background and Objective: Atherosclerosis is a diffuse, systemic disease that affects the coronary, cerebral, and peripheral arterial trees. Clopidogrel is widely used antiplatelet agent and its efficacy has been proven in cardiac and extracardiac vascular diseases, but it has several side effects. Therefore we investigated whether Sopunghwalhyeoltang, which is widely used for treating the blood stasis syndrome in traditional medicine, could decrease the side effect of antiplatelets and have a synergic effect. Methods & Materials: Male $ApoE^{(-/-)}$ mice were randomly divided into three different experimental groups, non-treated group (Control group), clopidogrel-treated group (CP group) and clopidogrel with Sopunghwalhyeol-tang treated group (CPS group). The control group was fed with only an atherogenic diet, the CP group an atherogenic diet plus clopidogrel 25mg/kg and the CPS group an atherogenic diet plus clopidogrel 25mg/kg with Sopunghwalhyeol-tang 100 mg/kg. We investigated plasma lipids with liver function test, and performed a histological investigation of liver and abdominal aorta. Results: 1. Photomicrographs of liver and abdominal aorta tissue showed lower histological injury and lipid accumulation in the CP and CPS groups than those in the Control group. 2. In the CPS group, plasma triglyceride level was significantly lower than in the Control and CP groups. 3. In the CPS group, the plasma aspartate aminotransferase (AST) level was significantly lower than in the CP group. Conclusions: The above results shows that a combined treatment of Sopunghwalhyeol-tang and clopidogrel have a synergic effect through inhibiting vessel injury and decrease the side effects of clopidogrel alone.

Strength and chloride penetration of Portland cement mortar containing palm oil fuel ash and ground river sand

  • Rukzon, Sumrerng;Chindaprasirt, Prinya
    • Computers and Concrete
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    • v.6 no.5
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    • pp.391-401
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    • 2009
  • This paper presents a study of the strength and chloride penetration of blended Portland cement mortar containing ground palm oil fuel ash (POA) and ground river sand (GS). Ordinary Portland cement (OPC) was partially replaced with POA and GS. Compressive strength, rapid chloride penetration test (RCPT) and chloride penetration depth of mortars were determined. The GS only asserted the packing effect and its incorporation reduced the strength and the resistance to chloride penetration of mortar. The POA asserted both packing and pozzolanic effects. The use of the blend of equal portion of POA and GS also produced high strength mortars, save cost and excellent resistance to chloride penetration owing to the synergic effect of the blend of POA and GS. For chloride depth, the mathematical model correlates well with the experimental results. The computer graphics of chloride depth of the ternary blended mortars are also constructed and can be used to aid the understanding and the proportioning of the blended system.

A study on Efficient Crime Prevention in the Railway Industry - Focusing on the Ministry of Construction and Transportation's Railway Police Office - (철도산업 치안제도의 효율화 방안에 관한 연구 - 건설교통부 철도공안제도를 중심으로 -)

  • Shin Tack-Hyun;Lee Yong-Sang;Do Jeong-Seok
    • Journal of the Korean Society for Railway
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    • v.9 no.4 s.35
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    • pp.425-431
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    • 2006
  • There are two kinds of police authorities in Korean railway industry, that is, the Special Judicial Police and the Local Subway Police. The existence of two separate entities for common objective of railway security has given rise to problems including inefficiency in performance and lack of customers-focused police service and synergic effects. The purpose of this study is to search for solutions to rail crimes that allows for rapid spatial movements since they take place on fast moving trains.

A Negative Effect of Animation Character in Mass Culture of Korea (한국의 대중문화에 Animation Character가 미치는 부정적인 영향)

  • 김홍산;신정숙
    • Archives of design research
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    • v.14 no.2
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    • pp.147-154
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    • 2001
  • The Animation Character is high value-added industry in an aspect of economic value. Because Animation Character creates various synergic effects. First and most importantly, the value of animation character is role of communicator in mass culture. The diverse personality and behavior of Animation character affects masses's a way of thinking and act. But the personality and behavior of Animation character express an extreme inclination, for the most part. And presentation of role's model that is necessary for maintenance and continuance of mass society is Auctioning wrongfully.

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A Study on a scheme for more efficient crime prevention in the railway industry (철도산업 치안제도의 효율화 방안에 관한 연구)

  • Do, Jeong-Seog
    • Proceedings of the KSR Conference
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    • 2005.11a
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    • pp.558-568
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    • 2005
  • There are two kinds of police authorities in Korea. One is the Special Judicial Police, under the authority of the Ministry of Construction and Transportation, charged with maintenance of public order on trains, in stations and other places of business operated by the Korea Railway Corporation. The other is the Local Subway Police, belonging to the Local Police Agencies, whose jurisdiction covers trains, station and other areas managed and operated by local governments. The existence of two separate entities for common objective of railway security has given rise to problems including inefficiency in performance and lack of technical knowledge and synergic effects. This study looks at the need for resolving those problems by restructuring and expanding the Special Judicial Police to bring railway security under a single authority and an integrated railway security systems operation.

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[ β ]-Lactamase Inhibitory Activities of New 6-tricyclic Substituted Exomethylene Penam Sulfones

  • Lee, Su-Jin;Kim, Hyun-Jin;Sheen Yhun Y.;Lee, Kwan-Soon;ParkChoo, Hea-Young
    • Biomolecules & Therapeutics
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    • v.14 no.4
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    • pp.220-225
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    • 2006
  • Derivatives of penicillanic acid sulfones are known to be irreversible inhibitors of $\beta$-lactamase. Eight 6-tricyclic methylene penicillanic acid sulfones were prepared, and their $\beta$-lactamase inhibitory activities were evaluated against $\beta$-lactamase types I, II, III and IV. Among the tricycles attached to 6-exomethylenepenam sulfones, thiazolobenzimidazole(12a-12b), fluorene(12c), and carbazole(12e), showed inhibitory activity on type I, II and III $\beta$-lactamase. But phenanthrene(12d), and anthracene(12f-12h) derivatives showed little $\beta$-lactamase inhibitory activity. The synergic effects of the selected compound(l2b) in 1:4 combination with piperacillin showed some protection to piperacillin for the resistant strains of E. coli DC2 and P. aeruginosa 1771.

A Study on the Selection of Strategic Industry in Gyeonggi Province (경기도 지역 전략산업 선정에 관한 시론적 연구)

  • Kim, Shin-Pyo
    • Journal of Industrial Convergence
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    • v.12 no.2
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    • pp.16-23
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    • 2014
  • The aim of this study is to find the strategic industries that fulfills the on-site demands of the Gyeonggi province region related to the advancement and development of the local industries. As the results of the analysis, the 4 major strategic industries in the Gyeonggi province region were determined to be (1) electronic component, computer, visual, acoustic and telecommunication equipment manufacturing, (2) pulp, paper and paper product manufacturing, (3) medical substances and pharmaceutical product manufacturing, and (4) rubber and plastic product manufacturing. The industry of concordance between the 4 major strategic industry of the Gyeonggi province determined in this Study and the 13 future growth engine industry of Korea was the area of intelligent semiconductor. Accordingly, it was analyzed that there is a need to strategically cultivate the electrical and electronic telecommunication device industry, which is ranked the $1^{st}$among the strategic industries of Gyeonggi province by generating synergic effects with the policy of the government for nurturing of intelligent semiconductor industry.

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NiO(Co0.25Mn0.75)2O3 and BaSrTiO3 thick films on alumina substrate as temperature and humidity ceramic multisensors

  • Oh, Young-Jei;Lee, Deuk-Yong
    • Journal of Sensor Science and Technology
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    • v.18 no.5
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    • pp.343-348
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    • 2009
  • $NiO{\cdot}(Co_{0.25}Mn_{0.75})_2O_3$(Mn-Ni-Co) and $Ba_{0.5}Sr_{0.5}TiO_3$(BST) thick films were screen printed on Pt patterned alumina substrate to investigate the effects of sintering temperature on humidity and temperature sensing properties of ceramic sensors. A raise in sintering temperature increased resistance and B constant of the Mn-Ni-Co temperature sensor. This may have derived from the synergic effects of the reduction in charge carriers caused by the substitution of Co for Mn as well as the formation of microcracks from the difference in thermal expansion coefficients. Dependence of resistance on humidity of the Mn-Ni-Co temperature sensor, however, was not found. BST films sintered at temperatures in the range of $1100^{\circ}C$ to $1150^{\circ}C$ showed excellent humidity sensing properties. The BST humidity sensor was faster in its response than the Mn-Ni-Co temperature sensor. The humidity sensor, however, proved to be unstable under various temperatures, suggesting a need for a temperature stabilizing device. In contrast, the Mn-Ni-Co temperature sensor was stable under humid conditions.

Fermented Product Extract with Lentinus edodes Attenuate the Inflammatory Mediators Releases and Free Radical Production

  • Shim, Sun-Yup;Lee, Mina
    • Natural Product Sciences
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    • v.27 no.2
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    • pp.115-121
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    • 2021
  • Lentinus edodes contains functional metabolites such as polysaccharopeptides, lectins, and secondary metabolites. Fermented soybean paste is representative fermented materials in Korea, and is gradually increasing due to various biological activities. In the present study, ethanol extracts of fermented products with/without L. edodes were designated as SPL and SP, and prepared to develop safer and therapeutic functional foods with antioxidant and anti-inflammatory activities for treatment of inflammatory disorders. SP and SPL extracts exhibited antioxidant effects via inhibiting radical activities. Inflammatory mediators, nitric oxide (NO), prostaglandin E2 (PGE2), interleukin (IL)-1β, IL-6, IL-8, tumor necrosis factor (TNF)-α, and inducible nitric oxide synthase (iNOS) production and nuclear factor-kappa B (NF-κB) activation were down-regulated by two extracts. SPL extract more strongly enhanced the antioxidant and anti-inflammatory activities than SP extract. Its' activities shown more longer fermentation period and more strong inhibitory effects. Taken together, our results suggested that fermented product with medicinal plant has synergic effect and SPL can be a potential candidate for treatment of inflammatory bowel diseases.

Effects of aerobic exercise, fat oxidation, and diet limitation on target fat mass reduction and appetite-regulating hormone levels

  • Lim, In Soo
    • Korean Journal of Exercise Nutrition
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    • v.17 no.2
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    • pp.43-48
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    • 2013
  • This study aims to investigate changes in plasma lipid concentrations and appetite-regulating hormone levels after a 4% body fat reduction using a 9-week intervention involving aerobic exercise, a fat-oxidizing agent, and diet limitation. After the 9-week intervention, the aerobic exercise plus hydroxycitric acid (EX+HCA), exercise (EX), and diet limitation (DIET) groups achieved the target 4% body fat reduction from the baseline value. None of the plasma lipid indicators showed significant intergroup differences, indicating that plasma lipid levels are not influenced by body weight regulation. With regard to appetite-regulating hormones, no significant intergroup differences were observed in glucose, insulin, or glucagon-like peptide-1 levels, unlike ghrelin and leptin. Ghrelin levels in particular tended to decrease in the DIET group and increase in the HCA+EX and EX groups. Leptin levels significantly decreased in the HCA+EX and EX groups, whereas no differences were observed in the DIET group. Such results indicate that exercise alone without the administration of obesity diet supplements induces elevation in ghrelin levels and reduction in leptin levels, but that diet restriction alone does not influence changes in leptin levels. Taken together, we could not confirm any synergic effects arising from the use of a fat-oxidizing agent during an exercise program to control body weight. Furthermore, diet limitation unsupported by exercise had no effect on muscle mass reduction or appetite-regulating hormone levels; thus, it is not recommended as an effective body weight control method.