• Journal of Information Technology Applications and Management
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• 제13권1호
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• pp.67-75
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• 2006

In this paper, we investigate the economic repercussion effects of the domestic satellite industry. The market size of the satellite industry between 2005 and 2009 is forecasted based on the world market forecast. By using the Input-Output analysis technique, three kinds of repercussion effects (domestic production, value added, workers induced by the satellite industry) between 2005 and 2009 are calculated.

• Korean Journal of Acupuncture
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• 제28권3호
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• pp.33-41
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• 2011

Objectives : The purpose of this study is to investigate effects of Scutellariae Radix water extract on hydrogen peroxide production in LPS-induced RAW 264.7 mouse macrophages. Methods : Scutellariae Radix produced from South Korea (SK) and Scutellariae Radix produced from China (SC) were extracted by hot water. Effects of SK and SC on hydrogen peroxide production in LPS-induced RAW 264.7 were measured by dihydrorhodamine 123 assay after 20, 24, 28, 44, 48, and 52 h incubation at the concentrations of 10, 25, 50, and 100 ug/mL. Results : SK significantly increased hydrogen peroxide production in LPS-induced RAW 264.7 cells for 20, 24, 28, 44, 48, and 52 h incubation at the concentrations of 10, 25, 50, and 100 ug/mL (P < 0.05). But SC did not represent any significant effect on hydrogen peroxide production in LPS-induced RAW 264.7 cells. Conclusions : These results suggest that Scutellariae Radix, especially produced from South Korea, has the immune-enhancing property related with its increasement of bacteriocidal hydrogen peroxide production in LPS-induced macrophages.

• 동의생리병리학회지
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• 제26권4호
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• pp.491-496
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• 2012

The purpose of this study is to investigate the modulatory effect of wogonin on hydrogen peroxide production in human blastoma SH-SY5Y cells induced by the synthetic analog of double-stranded RNA [polyinosinic-polycytidylic acid]. Hydrogen peroxide production was measured by dihydrorhodamine 123 (DHR) assay. Wogonin significantly inhibited the polyinosinic-polycytidylic acid (PIC)-induced production of hydrogen peroxide for 0.5, 2, 12, 18, and 24 hr incubation at the concentrations of 10, 25, and 50 ${\mu}M$ in SH-SY5Y (P < 0.05) in dose dependent manner. These results suggest that wogonin has neuroprotective property related with its inhibition of hydrogen peroxide production in PIC-induced neuronal cells.

• 한국한의학연구원논문집
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• 제11권2호
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• pp.97-111
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• 2005

This study was performed to evaluate anti-thrombotic activities and anti-inflammatory effects of ChungyeolHaedogHwaeoTang water extract(CHHT). The results were summarized as follows. In experiment of anti-thrombotic effect; 1. CHHT inhibited human platelet aggregation induced by ADP and epinephrine as compared with the control group, and inhibited pulmonary embolism induced by collagen and epinephrine (inhibitory rate is 37.5%). 2. CHHT increased platelet number significantly, and also CHHT shortened PT and APTT significantly as compared with the control group in thrombus model induced by dextran. In experiment of anti-inflammatory effect; 3. CHHT inhibited $IL-1{\beta}$, IL-6, TNF-${\alpha}$, COX-2 and NOS-II mRNA expression as compared with the control group in a concentration-dependent degree, and inhibited NO production significantly at 50, 100 ${\mu}g/ml$, and also inhibited ROS production in a concentration-dependent degree as compared with the control of group in RAW 264.7 cell line. 4. CHHT inhibited $IL-1{\beta}$, IL-6 and TNF-${\alpha}$ production significantly in serum of acute inflammation-induced mice, and decreased $IL-1{\beta}$, IL-6 and TNF-${\alpha}$ production in spleen tissue, and also decreased $IL-1{\beta}$, and IL-6 production in liver tissue, but increased TNF-${\alpha}$ production in liver tissue of acute inflammation-induced Balb/c mice. 5. CHHT increased survival rate from the 3rd day in ICR mice with lethal endotoxemia induced by LPS. These results suggest that CHHT can be useful in treating diverse female diseases caused by thrombosis and inflammation such as menstrual pain, menstrual disorder, leukorrhea, vaginitis, cervicitis, pelvic inflammatory disease and so on.

• 대한본초학회지
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• 제32권3호
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• pp.1-7
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• 2017

Objective : The purpose of this study was to investigate the effects of Scrophulariae Radix Water Extract (SR) on the production of inflammatory mediators in RAW 264.7 mouse macrophages cells induced by lipopolysaccharide (LPS). Method : We examined effect of Scrophulariae Radix Extract on the cell viability of mouse macrophages cells. Futhermore, After 24 hours treatment we investigated anti-inflammatory effect of Scrophulariae Radix Extract by the production of Bio-Plex cytokine assay, concentrations of various cytokines such NO, $interleukin(IL)-1{\alpha}$, IL-3 and interferon inducible protein-10(IP-10). Result : No significant changes have been found in the mouse macrophge cell viability by the Scrophulariae Radix Extract at the concentration of 25, 50, 100 and $200{\mu}g/m{\ell}$. The water extract of Scrophulariae Radix significantly inhibited the production of NO in the LPS-induced macrophage at the concentration of 25, 50, 100 and $200{\mu}g/m{\ell}$. The water extract of Scrophulariae Radix significantly inhibited the production of $IL-1{\alpha}$, IL-3 and IP-10 in the LPS-induced macrophage at the concentration of 50, 100 and $200{\mu}g/m{\ell}$. Conclusion : The water extract of Scrophulariae Radix significantly inhibited the production of NO, $IL-1{\alpha}$, IL-3 and IP-10 at the concentration of $50{\mu}g/m{\ell}$ or higher in the LPS-induced macrophages with no changes in the cell viability of them. These results suggest that water extract of Scrophulariae Radix has anti-inflammatory effect related with its inhibition of proinflammatory cytokines such as $IL-1{\alpha}$, IL-3 and IP-10 in the LPS-induced macrophages.

• 대한한방소아과학회지
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• 제29권2호
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• pp.26-36
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• 2015

Objectives In this study, effect of Geumsuyukgunjeon (GYJ) on the increase in airway epithelial mucosubstances of rats with acute bronchitis and EGF-induced MUC5AC mucin production from human airway epithelial cells were investigated. Materials and Methods Hypersecretion of airway mucus was induced by exposure of rats to SO2 during 3 weeks. Effect of orally-administered GYJ during 2 weeks on increase in airway epithelial mucosubstances from tracheal goblet cells of rats was assesed using histopathological analysis after staining the epithelial tissue with PAS-alcian blue. Possible cytotoxicity of GYJ was assessed by examining the potential damage of kidney and liver functions by measuring serum GOT/GPT activities and serum BUN and creatinine concentrations of rats and the body weight gain during experiment, after administering GYJ orally. Effect of GYJ on EGF-induced MUC5AC mucin production from human airway epithelial cells (A549) was investigated. Confluent A549 cells were pretreated for 30 min in the presence of GYJ and treated with EGF (25 ng/ml) for 24 hrs, to assess the effect of GYJ on EGF-induced MUC5AC mucin production using enzyme-linked immunosorbent assay (ELISA). Results (1) GYJ decreased the amount of intraepithelial mucosubstances of trachea of rats. (2) GYJ did not show kidney and liver toxicities and did not affect body weight gain of rats during experiment. (3) GYJ significantly inhibited EGF-induced MUC5AC mucin production from A549 cells. Conclusions The result from the present study suggests that GYJ might control both the mucus hypersecretion in vivo and do not show in vivo toxicity to liver and kidney functions after oral administration and the production of pulmonary mucin.

• 대한한의학회지
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• 제21권3호
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• pp.20-30
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• 2000

Objective : This experiment was performed in order to study the effect of an aqueous extract of Salviae radix root(SRRAE) on NO production and NOS gene induction from macrophages Methods : To investigate dose-dependent effects of SRRAE for NO release on the $rIFN-{\gamma}-treated$ macrophages, the cells were incubated for 6 hrs in a medium containing $rIFN-{\gamma}$ (5 U/ml), stimulated with SRRAE and incubated in a CO2 incubator. The cells were treated with 5 U/ml $rIFN-{\gamma}$ plus 100 g/ml of SRRAE, Then, the cells were incubated with various concentrations of NGMMA at $37^{\circ}C$ for 48 hrs, Results : SRRAE had no effect on NO production by itself, whereas recombinant $interferon-{\gamma}(rIFN-{\gamma})$ alone showed modest activity, When SRRAE was used in combination with $rIFN-{\gamma}$, there was a marked cooperative induction of NO production in a dose-dependent manner. The optimal effect of SRRAE on NO production was shown at 6hrs after treatment with $rIFN-{\gamma}$. The SRRAE-induced production of NO was inhibited by NG-monomethyl- L-arginine(NGMMA) and arginase. $rIFN-{\gamma}$ in combination with SRRAE showed a marked increase of the expression of the inducible NOS(iNOS) gene. In addition, the effect of SRRAE was mainly dependent on the SRRAE-induced tumor necrosis $factor-{\alpha}(TNF-{\alpha})$ secretion. Conclusions : SRRAE induces NO production from macrophages as a result of SRRAE-induced $TNF-{\alpha}$ secretion. SRRAE may provide a second signal for synergistic induction of NO production in macrophages already induced to express iNOS gene by $rIFN-{\gamma}$.

• 보건의료산업학회지
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• 제6권3호
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• pp.219-229
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• 2012

In these days, the interest on medical industry is increasing around the world. This paper attempts to estimate the economic effects of the medical and measuring instrument industry through the Input-Output Analysis. Especially, 78*78 Sector Tables were used as the first analysis tool. So then, 79*79 Sector Tables adjusted were used for that industry. The main analysis tools of this study are comparing and analyzing backward and forward linkage effect, the induced effect of the self industry and other industries and the induced coefficients such as products, value-added, employee's pay, sales surplus, employment. According to the result of analysis, the medical and measuring instrument industry has great economic impacts which affects the major macroeconomic factors such as production and backward linkage effect. And the induced effects of the self medical and measuring instrument industry are significant compared to other industries in aspects of production, employee's pay and sales surplus.

• Journal of Periodontal and Implant Science
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• 제40권3호
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• pp.119-124
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• 2010

Purpose: In addition to regulating body weight, leptin is also recognized for its role in the regulation of immune function and inflammation. The purpose of this study was to investigate the effect of leptin on Prevotella (P.) intermedia lipopolysaccharide (LPS)-induced tumor necrosis factor (TNF)-$\alpha$ production in differentiated THP-1 cells, a human monocytic cell line. Methods: LPS from P. intermedia ATCC 25611 was prepared by the standard hot phenol-water method. THP-1 cells were incubated in the medium supplemented with phorbol myristate acetate to induce differentiation into macrophage-like cells. The amount of TNF-$\alpha$ and interleukin-8 secreted into the culture medium was determined by enzyme-linked immunosorbent assay (ELISA). TNF-$\alpha$ and Ob-R mRNA expression levels were determined by semi-quantitative reverse transcription-polymerase chain reaction analysis. Results: Leptin enhanced P. intermedia LPS-induced TNF-$\alpha$ production in a dose-dependent manner. Leptin modulated P. intermedia LPS-induced TNF-$\alpha$ expression predominantly at the transcriptional level. Effect of leptin on P. intermedia LPS-induced TNF-$\alpha$ production was not mediated by the leptin receptor. Conclusions: The ability of leptin to enhance P. intermedia LPS-induced TNF-$\alpha$ production may be important in the establishment of chronic lesion accompanied by osseous tissue destruction observed in inflammatory periodontal disease.

• BMB Reports
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• 제41권1호
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• pp.79-85
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• 2008

The source of nitric oxide (NO) in plants is unclear and it has been reported NO can be produced by nitric oxide synthase (NOS) like enzymes and by nitrate reductase (NR). Here we used wild-type, Atnos1 mutant and nia1, nia2 NR-deficient mutant plants of Arabidopsis thaliana to investigate the potential source of NO production in response to Verticillium dahliae toxins (VD-toxins). The results revealed that NO production is much higher in wild-type and Atnos1 mutant than in nia1, nia2 NR-deficient mutants. The NR inhibitor had a significant effect on VD-toxins-induced NO production; whereas NOS inhibitor had a slight effect. NR activity was significantly implicated in NO production. The results indicated that as NO was induced in response to VD-toxins in Arabidopsis, the major source was the NR pathway. The production of NOS-system appeared to be secondary.