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Jang Seon Il,Kim Young-Jun,Lee Woo-Yiel,Kwak Kyung Chell,Baek Seung Hwa,Kwak Gyu Beum,Yun Young-Gab,Kwon Tae-Oh,Chung Hun Taeg,Chai Kyu-Yun The Pharmaceutical Society of Korea 2005 Archives of Pharmacal Research Vol.28 No.2
Scoparone is a major component of the shoot of Artemisia capillaris (Compositae), which has been used for the treatment of hepatitis and biliary tract infection in oriental countries. In the present study we observed that, scorparone exhibited no cytotoxic effect in unstimulated macrophages, but reduced the release of nitric oxide (NO) and prostaglandin $E_2\;(PGE_2)$ upon stimulation by IFN-${\gamma}$/LPS or LPS. The inhibitory effects were found to be in conjuction with the suppression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) in IFN-${\gamma}$/LPS stimulated RAW 264.7 cells. Moreover, scoparone also attenuated the production of tumor necrosis factor (TNF)-${\alpha}$, interleukin (IL)-$1{\beta}$ and IL-6 in LPS-stimulated RAW264.7 cells. These results suggest that scoparone decreases the production of the inflammatory mediators such as NO and $PGE_2$ in macrophages by inhibiting iNOS and COX-2 expression.
Seon Il Jang,Young-Jun Kim,Woo-Yiel Lee,Kyung Chell Kwak,Seung Hwa Baek,Gyu Beum Kwak,Young-Gab Yun,Tae-Oh Kwon,Hun Taeg Chung,Kyu-Yun Chai 대한약학회 2005 Archives of Pharmacal Research Vol.28 No.2
Scoparone is a major component of the shoot of Artemisia capillaris (Compositae), which has been used for the treatment of hepatitis and biliary tract infection in oriental countries. In the present study we observed that, scorparone exhibited no cytotoxic effect in unstimulated macrophages, but reduced the release of nitric oxide (NO) and prostaglandin E2 (PGE2) upon stimulation by IFN-γ/LPS or LPS. The inhibitory effects were found to be in conjuction with the suppression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) in IFN-γ/LPS stimulated RAW 264.7 cells. Moreover, scoparone also attenuated the production of tumor necrosis factor (TNF)-α, interleukin (IL)-1β and IL-6 in LPS-stimulated RAW264.7 cells. These results suggest that scoparone decreases the production of the inflammatory mediators such as NO and PGE2 in macrophages by inhibiting iNOS and COX-2 expression.
기-액흐름 연속누출에 의한 개방공간 증기운 폭발사고를 중심으로 중,소규모 사업장을 위한 사고 영향평가 방법
장서일,이헌창,조지훈,김태옥 한국산업안전학회 2003 한국안전학회지 Vol.18 No.1
For the unconfined vapor cloud explosion(UVCE) accident by the continuous release of gas-liquid flow of various saturated liquids in a vessel at ground level, overpressures were estimated by TNT equivalency model with two estimation methods, such as UVCE Ⅰ model based on a constant release time and UVCEⅡ model based on a real travel time of vapor by dispersion and analyzed with various release conditions. As a simulation result, the simple, easy, and correct method of evaluation of consequences of the UVCE accident was proposed by using consequences of UVCEⅠ model and correlation equations for differences of overpressures between UVCE models, so that this evaluation method could be used easily in the small and medium size enterprises without using the dispersion model.
충전상황을 고려한 보부재의 전단거동에 관한 실험적 연구
장일영,장기태 金烏工科大學校 産業技術開發硏究院 1999 産業技術開發硏究 Vol.15 No.-
This paper presents the shear behavior of high performance concrete beams having different concrete filling conditions. Six tests were conducted on full-scale beam specimens with design parameters(concrete compressive strength, tensile rebar ratio and concrete filling conditions). Different concrete filling conditions were intentionally made such that the first type specimen was soundly cast to obtain the perfect concrete filling condition. Second type specimen was cast in such a way that up to the longitudinal tensile reinforcement from the top, good concrete was filled while poor concrete was poured for the bottom part to simulate the poor workmanship, workability and unsatisfactory compaction. Third type specimens was cast in such a way that up to the neutral axis of the beam section from the top, good concrete was filled while so did for the bottom part as the second type specimen. The test results were analyzed in terms of load-displacement response, failure pattern, and reserved shear capacity. The have no effect of concrete filling conditions on the ultimate strength of structures. But, the have a great influence of concrete filling conditions on the total reserved shear force and ductile of structures.
장정태,송일근 대불대학교 2004 大佛大學校大學院 硏究論文集 Vol.3 No.-
Transformer is the most facility for supply proper voltage eletric power to customers. and/or drives always good conditions. if this breaks down, it needs to spend much money and repair time and occurs outage some places. This paepr suggests how to occur faults of transformer, especially, pole transformer analyzes the cause according to many variety situations.
뇌하수체 종양 제거술 시행 후 뒤늦게 발생한 횡문근 융해증과 동반된 중추성 열
장제혁,최규남,김일환,노은지,김윤정,유충헌,고정해,박봉수,김태균,권민정,이순희,박정현 인제대학교 2008 仁濟醫學 Vol.29 No.-
Body temperature is controlled by thermoregulatory center of the hypothalamus. We report a case of 24 years old man with central fever. He was subjected to a partial excision of pituitary tumor compressing optic chiasm four years ago. He has received hormonal therapy for panhypothyroidism after removal of pituitary tumor. And He received gamma knife operation for partially contrast-enhancing masses in suprasellar and both hypothalamic areas that is probably postoperatively remnant or recurrent tumor of pituitary adenoma. One year after gamma knife operation, he presented with a febrile syndrome of unknown origin including rhabdomyolysis. All usual investigations proved negative. We diagnosed him as central fever with rhabdomyolysis. He received medical ICU care with cooling bed, ice pack. And his symptom improved. Postoperative hyperthermia may result following resection of the pituitary tumor. When central fever is suspected taking note of past history, a quick recognition of course of fever can help reduce the using of unnecessary antibiotics and hospital stay.
Immunological Roles of Pasteurella multocida Toxin (PMT) Using a PMT Mutant Strain
Kim, Tae-Jung,Toan, Nguyen Tat,Jang, Eun-Jin,Jung, Bock-Gie,Lee, Jae-Il,Lee, Bong-Joo The Microbiological Society of Korea 2007 The journal of microbiology Vol.45 No.4
The immunological role of the Pasteurella multocida toxin (PMT) in mice was examined using a PMT mutant strain. After a nasal inoculation, the mutant strain failed to induce interstitial pneumonia. Moreover, PMT had no significant effect on the populations of CD4+, CD8+, CD3+, and CD19+ immunocytes in blood or on the populations of CD4+ and CD8+ splenocytes (P<0.01). However, there was a significant increase in the total number of cells in the BAL samples obtained from the wild-type P. multocida-inoculated mice. On the other hand, the level of IL-l expression decreased when the macrophages from the bronchio-alveolar lavage were stimulated with PMT. Overall, PMT appears to play some role (stimulating and/or inhibiting) in the immunological responses but further studies will be required to confirm this.
방울토마토중 Dichlofluanid 및 Iprodione의 생산단계별 잔류농약 경시변화
최규일,성기용,정태균,이주환,허장현,고광용,이규승 한국환경농학회 2002 한국환경농학회지 Vol.21 No.4
방울토마토의 생산단계에서의 잔류허용기준 설정과 수확후 저장기간중 경시변화 및 세척에 의한 잔류농약의 감소양상을 파악하였다. 해당약제를 안전사용기준의 기준량 및 배량을 각각 시설재배 포장에서 살포후 10일간 잔류양상을 조사하였고, 실온 및 냉장조건 하에서의 저장실험 및 세척에 따른 전류농약의 잔소량을 파악하여 생산단계부터, 출하, 저장, 소비단계까지의 잔류량을 예측할 수 있는 모델개발을 위한 자료로 이용하고자 연구를 수행하였다. Dichlofluanid와 iprodione은 포장조건에서 반감일수가 기준량 2.2, 3.3일 이었으며, 배량은 3.5, 5.4일로 나타났다. 저장조건하에서의 약제별 반감기는 포장조건보다 잔류량의 감소속도가 느린 것으로 나타나 반감일수가 증가하였고, 세척방법에 의한 잔류농약의 감소량을 조사한 결과 세제 사용시의 평균제거율은 dichlofluanid는 73.7%, iprodione은 64.3%로 나타났고, tap-water 사용시에는 dichlofluanid 73.5%, iprodione 63.5%로 나타났다. 이러한 결과는 작물의 생산단계에서 구한 합리적인 희귀식을 이용하여 잔류농약의 경시변화를 파악하고, 저장 및 세척과정을 거쳐 최종 소비단계에서의 잔류농약의 수준을 평가할 수 있었다. We studied the residual patterns of two fungicides, dichlofluanid and iprodione, in cherry tomato greenhouse after applying with the recommended and double dose. Also, the degradation patterns during storage periods of up to ten days were compared between at room temperature (20℃) and at cold temperature (4℃). Removal rates of fungicides by washing with tap-water and detergent solution (0.1%, 0.2%) were measured. Half-lives of dichlofluanid and iprodione in greenhouse cherrytomato were 2.2~3.5 and 3.3~5.4 days, respectively. During the storage period, the residues were dissipated more slow. Removal rates were 62.8~80.3% by tap-water, 60.4~83.1% by 0.1% detergent solution, and 65.3~77.6% by 0.2% detergent solution. So, we can predict of terminal residues from cultivation period to marketing, storage and consuming.