• Biomolecules & Therapeutics
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• 제24권6호
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• pp.638-649
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• 2016

In the previous study, the rhizome mixture of Anemarrhena asphodeloides and Coptis chinensis (DW2007), improved TNBS-, oxazolone-, or DSS-induced colitis in mice by regulating macrophage activation. Therefore, to understand the effect of DW2007 on the T cell differentiation involved in the adaptive immunity, we measured its effect on both Th17 and Treg cell differentiation in splenocytes, in the lamina propria of mice with DSS-induced colitis (DIC), and in the spleens of mice with collagen-induced arthritis (CIA). Results showed that DW2007 potently inhibited the differentiation of splenocytes into Th17 cells, but increased Treg cell differentiation in vitro. In the colon of wild type and $TLR4^{-/-}$ mice with DIC, DW2007 potently suppressed DSS-induced colon shortening and myeloperoxidase activity. DW2007 also suppressed collagen-induced paw thickening, clinical index, and myeloperoxidase activity in CIA mice. Overall, DW2007 potently suppressed Th17 cell differentiation in mice with CIA and DIC, but increased Treg cell differentiation. Moreover, DW2007 strongly inhibited the expression of TNF-${\alpha}$ and IL-$1{\beta}$, as well as the activation of NF-${\kappa}B$. Based on these findings, DW2007 may ameliorate inflammatory diseases by regulating the innate immunity via the inhibition of macrophage activation and the adaptive immunity via the correction of disturbed Th17/Treg cells.

• Journal of Computing Science and Engineering
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• 제1권2호
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• pp.211-232
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• 2007

In this paper we investigate some issues and solutions related to the design of a Data Warehouse (DW), storing several aggregate measures about trajectories of moving objects. First we discuss the loading phase of our DW which has to deal with overwhelming streams of trajectory observations, possibly produced at different rates, and arriving in an unpredictable and unbounded way. Then, we focus on the measure presence, the most complex measure stored in our DW. Such a measure returns the number of distinct trajectories that lie in a spatial region during a given temporal interval. We devise a novel way to compute an approximate, but very accurate, presence aggregate function, which algebraically combines a bounded amount of measures stored in the base cells of the data cube. We conducted many experiments to show the effectiveness of our method to compute such an aggregate function. In addition, the feasibility of our innovative trajectory DW was validated with an implementation based on Oracle. We investigated the most challenging issues in realizing our trajectory DW using standard DW technologies: namely, the preprocessing and loading phase, and the aggregation functions to support OLAP operations.

• 한국환경과학회지
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• 제16권9호
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• pp.1071-1076
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• 2007

Polychlorinated biphenyls(PCBs) and polybrominated diphenyl ethers (PBDEs) were measured in pine needles of Seoul, and Ansung(GyeongGi-do) to investigate composition, source, and regional concentration of PBDEs. Concentration of total PCBs in Seoul and Ansung showed 608, 945 pg/g DW (mean: 777 pg/g DW), respectively, also concentration of total PBDEs(pg/g DW) in Seoul and Ansung showed 7944, 14,255 pg/g DW(mean 11,100 pg/g DW). Tetrachlorinated biphenyls(Tetra-CBs) and Decabromodiphenyl ethers (Deca-BDE) were detected in relatively high concentration compared to other PBDE congeners in Seoul and Ansung. Correlation coefficients(r) of between PCB congeners in pine needles detected of Seoul and Ansung were significant (r=0.85, p<0.01). It suggested that PCBs concentration in pine needles may originate from secondary sources such as air-plant partition. The similarity of between PBDE congeners profile to those of the technical mixture formulation (Bromkal 70-5DE) suggests a source of this product in these sites.

• 한국환경농학회지
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• 제26권3호
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• pp.217-222
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• 2007

식물의 종자발아와 유묘생장에 미치는 무기게르마늄과 유기게르마늄의 효과와 흡수특성을 조사하기 위하여, 대표적인 채소류인 갓, 배추 및 청경채를 이용하여 다양한 게르마늄농도(0, 10, 25, 50, 100 mg $L^{-1}$)를 처리하였다. 채소 종자발아는 모든 식물에서 무기게르마늄을 100 mg $L^{-1}$ 처리한 경우에만 약간의 저해를 받았고 나머지 조건에서는 거의 영향을 받지 않았다. 식물의 유묘생장에 미치는 게르마늄의 효과는 갓과 배추의 경우에는 모든 농도의 무기게르마늄($10{\sim}100$ mg $L^{-1})$에서 뿌리의 생장에 심각한 저해를 보였고 지상부 생장은 높은 농도(50, 100 mg $L^{-1}$)에서는 저해를 받지만 낮은 농도(10, 25 mg $L^{-1}$)에서는 오히려 약간의 생장 촉진효과를 보이거나 거의 차이가 없는 것으로 보였다. 유기게르마늄의 처리시에는 뿌리와 지상부의 생육이 낮은 농도(10, 25, 50 mg $L^{-1}$)의 대부분 조건에서 생장을 촉진하는 결과를 보였다. 식물체내의 게르마늄의 흡수 특성은 무기 및 유기게르마늄의 모든 조건에서 대조구에 비해 처리농도가 높아짐에 따라 점진적으로 뚜렷한 증가를 보였다 특히 무기게르마늄을 처리한 경우 보다 유기 게르마늄을 처리한 경우에 같은 농도에서 전반적으로 약 $2\sim4.5$배까지 많이 흡수되었다. 25 mg $L^{-1}$농도의 게르마늄을 처리한 경우를 보면, 유기게르마늄의 처리시 게르마늄의 흡수는 갓에서는 약 4배(무기게르마늄: 0.37 mg $g^{-1}dw$, 유기게르마늄 : 1.47 mg $g^{-1}dw$), 배추에서는 약 2.2배(무기게르마늄: 0.40 mg $g^{-1}dw$, 유기게르마늄: 0.86 mg $g^{-1}dw$) 그리고 청경채의 결우 약 2.1배(무기게르마늄 : 0.33 mg $g^{-1}dw$, 유기게르마늄: 0.70 mg $g^{-1}dw$) 정도로 무기게르마늄의 처리보다 높았다.

• Preventive Nutrition and Food Science
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• 제12권1호
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• pp.16-22
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• 2007

In order to evaluate the hepatoprotective effect of an herb distillate, ie., a mixture of 28 traditional Korean herbs, germanium, tormarine and Gijangsoo (Gijang water), $CCl_4$ was intraperitoneally administered to rats before or after supplementation of the diluted herb distillate (HD) for 2 weeks. Then hepatic xanthine oxidase activity and serum lipid profiles were determined. The experimental groups had higher feed intake than the normal control (NC), but had lower weight gain. Water intake and the amount of feces were not significantly different, but urine was excreted in lower amounts in all the experimental groups compared to the NC. Liver weights in the HD-supplemented groups were lower than that of the distilled water-supplemented groups (DW-groups) after $CCl_4$-administration. Serum ALT activities in all the experimental groups were higher than that of the NC-group. However, the increasing activity of serum ALT in the HD-supplemented groups (HD-groups) was lower than that of the DW-groups. Total serum and LDL-cholesterol levels were higher in all the $CCl_4$-administered groups than in the NC-groups, and serum HDL-cholesterol levels were lower in all the experimental groups compared with the NC-groups. Meanwhile, the increasing rate of total serum and LDL-cholesterol levels and the decreasing rate of HDL-cholesterol in the HD-groups were lower than that of the DW-groups. But, levels of serum TG were similar among all the experimental groups. The activities of hepatic xanthine oxidase (XOD) type O of the $CCl_4$-administered rats showed a significant increase in and an increasing rate of XOD in the HD-groups, which was lower than that of the DW-groups. On the other hand, GST activities in all the experimental groups were significantly decreased, and the decreasing rate was lower in the HD-groups than in the DW-groups. The hepatic contents of GSH and LPO in all the rats were not changed by $CCl_4$ administration. These results suggest that the decreased liver damage in the HD-supplemented groups was due to the inhibition of XOD-type O activity by constituents of HD, as well as by a prevention/inhibition of serum lipid profile changes in $CCl_4$-treated rats. However, further detailed studies are needed to support this hypothesis.

• 한국약용작물학회지
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• 제15권3호
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• pp.189-193
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• 2007

사철쑥 (Artemisia capillaris Thunb.)의 수확시기 및 부위별 생육특성, scoparone과 capillarisin함량을 조사하여 약리 성분 함량이 높은 수확시기와 부위를 알아본 결과는 다음과 같다. 사철쑥은 7월 30일경 꽃봉오리가 형성되었으며 8월 30일 만개하여 9월에 종자가 성숙되었다. 생육은 8월 30일에 가장 양호하여 생체중과 건물중이 높았다. 특히 이 시기에 엽은 관찰되지 않았고 생체중은 243.7g으로 높았는데 종실의 무게는 109.6g, 줄기의 무게는 134.Is이었다. Scoparone 함량은 종실에 많이 함유되어 있었는데 8월 30일 종실에서 6.50mg/g DW로 가장 높았다. 또한 capillarisin은 줄기에는 존재하지 않았으며 엽과 종실에서 나타났는데 7월 30일 종실에 1.65mg/g DW로 가장 많이 함유되어 있었다.

• 한국자기학회:학술대회 개요집
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• 한국자기학회 2007년도 The 1st International Symposium on Advanced Magnetic Materials
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• pp.200.1-200.1
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• 2007

• 한국환경과학회지
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• 제18권10호
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• pp.1135-1141
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• 2009

Carrots (Daucus carota L.) are consumed as an important dietary source of provitamin A including $\beta$-carotene, $\alpha$-carotene and lutein. An HPLC method was applied to determine the content of the carotenoid composition in carrot cutivars cultivated in Korea. HPLC analyses were carried out with five carrot cultivars (Socheon-5-chon, Hongsim-5-chon, Myeongju-5-chon, Seonhongbom-5-chon and Betarich) sown at April, 2007 and six cultivars (Yeoreum-5-chon, Hanyeoreum-5-chon, Sinheukjeon-5-chon, Bibariheukjeon, Manina and Betarich) sown at August of the same year. In general, the former varieties are not used for the sowing at summer because of their bolting (growth of floral axis). The former and the latter carrots were harvested after 110 and 96 days from seeding, respectively, and the carotenoids were extracted with acetone after freeze-drying. The amount of $\alpha$-carotene ($117.7{\sim}205.3\;{\mu}g/g{\cdot}DW$) was similar to that of $\beta$-carotene ($113.1{\sim}189.6\;{\mu}g/g{\cdot}DW$) for the carrot cultivars sown at spring, while the content ($46.2{\sim}71.1\;{\mu}g/g{\cdot}DW$) was about a half of $\beta$-carotene content ($92.5{\sim}140.2\;{\mu}g/g{\cdot}DW$) for the latter cultivars. In addition, the average content of lutein ($25.2\;{\mu}g/g{\cdot}DW$) in the former cultivars was eight times higher than that in the latter cultivars ($3.1\;{\mu}g/g{\cdot}DW$). Among the spring cultivation types, Socheon-5-chon and Myeongju-5-chon showed higher amount of $\alpha$-carotene and $\beta$-carotene, while the higher amount was determined in Yeoreum-5-chon and Sinheukjeon-5-chon among the autumn cultivation types. Validation of the HPLC-DAD method showed good linearity ($r^2$ > 0.997) of the three compounds analyzed in a wide concentration range ($0.025{\sim}20\;{\mu}g/ml$). The R.S.D. values for intra-day and inter-day precision were less than 19.2% and the mean recovery of each compound was 85.4~104.7%.

• 동의생리병리학회지
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• 제21권6호
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• pp.1549-1554
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• 2007

To verify the effects of JAUN-1, which is a water-extracted herbal mixture, on gastroenteric disorders induced by 0.1 percent of iodoacetamide (IA) in rats. We divided four groups, $Na{\&quot;{\i}}ve$ + Distilled Water (DW), 0.1% IA + DW, 0.1% IA + Proton pump inhibitor (Lansoprazole, 5 mg/kg) and 0.1% IA + Herbal mixture (JAUN-1, 50mg/kg) and performed following experimental methods to confirm its advantageous effects against ulcerogenic stomach in rats induced by 0.1% IA; cell cytotoxicity, analysis of lesions score, Hematoxylin & Eosin (H&E) stain, RT-PCR for ${\beta}-actin$, COX-1 and COX-2 and evaluation of intestinal prokinetic activity. No cytotoxicity was elucidated at the concentration of 1, 5, 10, 50, 100, $500\;{\mu}g/ml$ and 1mg/ml JAUN-1 through MTT Assay using by human stomach epithelial AGS cells, respectively. In addition, the JAUN-1 treated group and the lansoprazole treated group significantly decreased in lesions score compared to the DW treated group in the gastritis induced rat model, and results of immunohistochemistry by H&E staining showed that histological recovery in Proton Pump Inhibitor (PPI) and JAUN-1 treated groups rather than the DW administrated group. Another outcome was that ${\beta}-actin$ relative COX-2 expression level was significantly promoted in the DW treated group while ${\beta}-actin$ relative COX-1 expression level was no meaningful change in this rat model. Finally, intestinal prokinetic activity was recovered from low level of prokinetic activity due to 0.1% IA induced gastritis to the similar level of Normal group. These results suggested that JAUN-1 may have beneficial effects against 0.1% IA-induced gastritis rat model through decreasing lesions score, histological recovery, ${\beta}-actin$ relative COX-1, 2 expression level and prokinetic activity.

• 충청수학회지
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• 제20권3호
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• pp.203-210
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• 2007

Let X be a hyperbolic region in the complex plane C such that the hyperbolic metrix ${\lambda}_X(w){\mid}dw{\mid}$ exists. Let $R(X)=sup\{{\delta}_X(w):w{\in}X\}$ where ${\delta}_X(w)$ is the euclidean distance from w to ${\partial}X$. Here ${\partial}X$ is the boundary of X. A hyperbolic region X is called a Bloch region if R(X) < ${\infty}$. In this paper, we obtain lower bounds for the hyperbolic metric on Bloch regions in terms of the distance to the boundary.