1-(5-bromo-2-hydroxy-4-methoxyphenyl)ethanone [SE1] suppresses pro-inflammatory responses by blocking NF-κB and MAPK signaling pathways in activated microglia

Himaya, S.W.A.,Ryu, BoMi,Qian, Zhong-Ji,Li, Yong,Kim, Se-Kwon Elsevier 2011 european journal of pharmacology Vol.670 No.2

<P><B>Abstract</B></P><P>Unregulated activation of microglia is a key risk factor contributes to neurodegenerative diseases and suppression of this phenomenon is considered as a potential therapeutic target. The compound isolated from sea horse <I>Hippocampus kuda</I> Bleeler; 1-(5-bromo-2-hydroxy-4-methoxyphenyl)ethanone [SE1] was characterized for its ability in suppressing LPS mediated activation of murine BV-2 cells. Despite the presence of various active molecular groups in the structure, SE1 has not well explored for its biological activities. The outcome of this study clearly indicated that SE1 inhibited the production of inflammatory mediators; nitric oxide, prostaglandin E<SUB>2</SUB> and pro-inflammatory cytokines. Furthermore, it inhibited the protein and gene expression levels of inducible nitric oxide synthase, cyclooxygenase-2, tumor necrosis factor-α, interleukin-1β and interleukin-6. The responsible signaling mechanisms leading to these inhibitions were identified as SE1 mediated blocking of phosphorylation of mitogen activate protein kinase (MAPK) molecules; C-jun-N-terminal kinase (JNK), p38 and nuclear translocation of nuclear factor-κB (NF-κB) p65 and p50 subunits. These results suggest that SE1 has the potential to be further developed as therapeutic against neuro-inflammation.</P> <P><B>Graphical abstract</B></P><P><ce:figure id='f0045'></ce:figure></P>

The effect of combined Rehmannia glutinosa Libosch and Eleutherococcus senticosus Max(OPB) extracts on bone mineral density in ovariectomized rats.

Kim,Jung-Keun 대한구강생물학회 2007 International Journal of Oral Biology Vol.32 No.4

This study was conducted to investigate the preventingeffects of OPB (Rehmannia glutinosa Libosch and Eleuth-erococcus senticosus Max extracts) and combined OPB/Calcium therapy on bone loss in ovariectomized rats. SixtySprague Dawley rats of 12-week-old were divided into eightgroups: OVX (ovariectomized), OPBL (OPB 50mg/kg),OPBM (OPB100mg/kg), OPBH (OPB 200mg/kg), OPBL/CAL(OPBL+CAL), OPBM/CAL (OPBM+CAL), OPBH/CAL (OPBH+CAL) and CAL (Calcium citrate 88.33mg/kg+1α, 25-dihydroxy-vitamin D3 33.33IU/kg). Bone mineraldensity (BMD), bone mineral content (BMC), bone strengthindices and cortical thickness were analyzed by peripheralquantitative computerized tomography (pQCT). pQCTscanning showed that OVX induced a significant decreasein trabecular bone mineral density and bone mineralcontent in the proximal tibia (-36.4±2.4%, -21.8±12.7%).These decreases were significantly prevented by theadministration of OPBM and OPBM/CAL. Cortical BMDand BMC of tibia were slightly enhanced by OPB and OPB/CAL. However there was no significant difference betweenOVX and OPB, OPB/CAL treated group. Bone strengthindices and cortical thickness were not significantly different.Our results suggest that OPB and combined OPB/Calciumtherapy are effective in preventing the development of boneloss induced by ovariectomy in rats.

Thiamine결핍 유도후 쥐 전뇌의 성상교세포 Glial Fibrillary Acidic Protein(GFAP) 면역화학 활성도에 대한 변화

김승현,김희태,김주한,김명호,황세진,김명권,백태경 대한신경과학회 1999 대한신경과학회지 Vol.17 No.1

Ga 함량에 따른 Cu(In<SUB>x</SUB>Ga<SUB>1-x</SUB>)Se₂ 태양전지의 특성분석

김석기(Seok Ki Kim),권세한(Se Han Kwon),이두열(Doo Yeol Lee),이정철(Jeong Churl Lee),강기환(Ki Whan Kang),윤경훈(Kyung Hoon Yoon),안병태(Byung Tae Ahn),송진수(Jinsoo Song) 대한전기학회 1998 대한전기학회 학술대회 논문집 Vol.1998 No.7

Plasma estradiol-17βand estrogen receptor increased during the artificial induce sexual maturation and it influence choriocapillary layer of eye in Japanese eel, Anguilla japonica

Ji-Yeon Hyeon,Sung-Pyo Hur,Jun-Hwan Byun,Eun-Su Kim3,Shin-Kwon Kim,Han-Jun Kim,Se-Jae Kim,Akihiro Takemura 한국수산해양기술학회(구 한국어업기술학회) 2018 한국수산해양기술학회 학술발표대회 Vol.2018 No.11

유치 수복물에 따른 주변 법랑질의 탈회 저항성 : QLF를 이용한 연구

권해숙,현홍근,김영재,김정욱,장기택,김종철,한세현,이상훈 大韓小兒齒科學會 2010 大韓小兒齒科學會誌 Vol.37 No.1

본 연구에서는 유치 수복물의 불소 방출 여부에 따른 주변 법랑질의 탈회 저항성과 재광화 효과를 살펴보고자 하였다. 건전 유전치 48개를 16개씩 임의로 세 군으로 나누어, FiltekTM Z250(1군), F2000(2군), KetacTM N100(3군)을 사용하여 제조사의 지시에 따라 충전하였다. 3일 동안 인공 우식 병소를 유발한 후, 14일 동안 인공 타액에 담가 재광화를 유발하였다. Quantitative light-induced fluorescence(QLF)를 이용하여 실험 단계와 시간에 따른 무기질 소실량(ΔQ)의 변화를 관찰한 결과는 다음과 같다. 1. 탈회가 일어난 인공 우식 병소의 ΔQ 값은 3군, 2군, 1군 순으로 작게 나타났고, 이 중 3군은 1군에 비해 유의한 탈회 저항성을 보였다. 2. 1군, 2군, 3군 모두 재광화 1일 후부터 초기 인공 우식 병소의 ΔQ 값과 비교 시 유의한 차를 보였으며, 관찰 기간 동안 지속적인 증가 양상을 나타내었다. 3. 재광화 속도를 의미하는 Δ(ΔQ)/일 값은 각 군에서 처음 1일 동안 유의성 있게 크게 나타났으며, 그 이후 급속히 감소하였다. 4. 수복 재료에 따른 재광화 정도는 각 군 간에 유의한 차이가 없었다. The objective of this in vitro study was to detect and monitor demineralization and remineralization of primary teeth according to restorative materials using quantitative light-induced fluorescence (QLF). A single bur hole was drilled on the each sound forty eight primary anterior teeth, and the specimens were divided into three groups. The cavity was restored with FiltekTM Z250(Group 1), F2000(Group 2), KetacTM N100(Group 3) following the manufacturer's instructions. The teeth were subjected to the demineralizing buffer for 3 days, and then subjected to a remineralizing buffer for 14 days. The change of mineral loss(ΔQ) according to the stages was evaluated by QLF and the following results were obtained: 1. When demineralization was done, ΔQ was increased as follows. : Group 1 (-110.79 ± 27.77) < Group 2 (-104.84 ± 28.95) < Group 3 (-90.16 ± 21.87) : Resistance to demineralization was statistically significant in Group 3. 2. There was a statistically significant increase in ΔQ of all groups since 1st day of remineralization 3. The rate of remineralization, Δ(ΔQ)/day, showed significant high value in each group on the 1st day then decreased rapidly. 4. There was no statistically significant difference in the degree of remineralization among restorative materials.

粉末 燻乾정어리 加工 및 貯藏中에 品質變化

金洙賢,李應昊,韓鳳浩,金世權 釜山水産大學校 1978 釜山水産大學 硏究報告 Vol.18 No.1

1976年 以來 우리나라에서 漁獲量이 急增하고 있는 정어리를 보다 效率的으로 食用化하기 위한 方法을 檢討하기 위하여 粉末燻乾정어리의 加工 및 貯藏에 관한 實驗을 하였다. 製品은 水分이 11.7%, 脂肪이 22.9%, 蛋白質은 61.7%였고, 原料 fillet에 대한 收率은 16.8%였으며, 담백한 맛과 燻乾品特有의 香氣가 있었다. 그리고 製品은 탄산가스 중에 貯藏하면 貯藏 중 酸化酸量의 變化가 거의 없고 品質을 安全하게 保藏할 수 있다는 結論을 얻었다. Since 1976 the catches of sardine have been increased rapidly in Korea. A processing method of smoked sardine meat powder and its quality changes during storage were studied. The fillets of raw sardine meat were boiled at 98℃ for 1 hour in a wire basket. After cooling at room temperature, the boiled fillets which small bones were removed were smoked at 60-70℃ for 8 hours. The second smoking was carried out under same conditions after 24 hours. The products were cleaned with brush and then powdered. The contents of moisture, lipid and protein were 11.7%, 22.9% and 61.7%, respectively. The yield of the product to the weight of raw fillet was 16.8%. According to the results of panel test, the product was well accepted having meaty taste and characteristic smoky flavor. The amount of oxidized acid in the product increased only a little during the storage in carbon dioxide gas.

Lidocaine으로 Retrobulbar block時 發生한 過敏反應 1例

金世煥,朴辰雄,金炳權 대한마취과학회 1977 Korean Journal of Anesthesiology Vol.10 No.3

This report shows a fatal hyperergy occurring during retrobulbar block using lidocaine on a 42 years old male patient. When we injected 60㎎ of lidocaine into the retrobulbar space, following signs were noticed in one minute: hypertension, convulsion, dyspnea and loss of consciousness. In addition to the above symptoms, cardiac arrest developed in 2∼3 minutes and did not respond to any resuscitative effort. It is considered that 60㎎ of lidocaine for retrobulbar block can induce hyperergy and cardiac arrest. The clinical picture and treatment of such reaction is discussed with particular attention to the importance of close observation of all anesthetic patients whether under general or local anesthesia.

韓國産 달팽이의 化學成分에 관한 硏究 : (1) 민달팽이와 달팽이의 無機質 및 아미노酸組成 (1) Mineral Content and Amino Acid Composition of Korean Slug and Korean Land Snail

金世權,李應昊,文聖勳,姜玉珠 釜山水産大學校 1983 釜山水産大學 硏究報告 Vol.23 No.2

민달팽이 및 달팽이의 化學成分을 分析하여 營養學的 價値 및 漢方效果를 究明하기 위한 基礎資料를 얻고자 一般成分, 無機質, 構成아미노酸 및 遊離아미노酸을 分析한 結果는 다음과 같다. 민달팽이 및 달팽이의 蛋白質含量은 各各 11.6%, 14.7%였으며 灰分含量은 2.7% 및 2.1%이었다. 민달팽이의 無機物 중 K이 213.0㎎%로 가장 含量이 많았고, Na, P 및 Ca의 含量은 各各 142.9㎎%, 138.6㎎% 및 129.5㎎% 였다. Cu, Fe, Zn 및 Mn은 微量元素로서 檢出되었지만 Fe含量은 29.63㎎%로 매우 높은 含量이었다. 달팽이의 경우도 K이 288.2㎎%로 가장 그 含量이 많았고, 다음은 P이 173.7㎎%, Ca은 97.2㎎%, Na은 51.4㎎%, Mg은 30.8㎎%이었다. 微量元素 중 Zn 및 Fe含量은 各各 16.58㎎%, 8.64㎎%이었다. 構成아미노酸은 乾物重量으로서 민달팽이의 40.9%였고, glutamic acid, aspartic acid, leucine, arginine, lysine 및 glycine이 全體아미노산의 53.4%로 함량이 많았으며, cystine, methionine 및 hictidine은 그 含量이 적었다. 必須아미노酸 含量은 總아미노산의 33.0%를 차지하였으며, 이와같은 傾向은 달팽이의 경우도 비숫한 傾向이었다. 민달팽이의 遊離아미노酸 중 含量이 많은 것은 arginine, glutamic acid, alanine 및 serine이었고, 이들이 全體 아미노酸의 54.8%이었으며 반면에 methionine, tyrosine은 含量이 적었으며, 全體 遊離아미노酸 含量은 711.3㎎/100g이었다. 달팽이의 遊離아미노酸 중 含量이 많은 것은 alanine, glutamic acid, arginine, lysine이었으며 이들이 全體 아미노산의 53.6%를 차지한 반면 mthionine, tyrosine 및 cystine은 매우 낮은 含量이었으며 全體 遊離아미노酸含量은 1052.2㎎/100g이었다. The proximate compositions, mineral contents and amino acid compositions of Korean slug, Incilaria frusferi, and Korean land snail, Acusta despecta(GRAY), were determined. The contents of protein, lipid and ash in Korean slug were 11.6%, 2.8% and 2.7%, and those from Korean land snail were 14.7%, 2.2% and 2.1%, respectively. Among the minerals in Korean slug, potassium, sodium and calcium were 213.0 mg%, 142.9 mg% and 129.5 mg%, and those from Korean land snail were 288.2 mg%, 51.4 mg% and 97.2mg%, respectively. In the case of trace element in Korean slug, iron, manganese and copper were 29.63 mg%, 11.21 mg% and 1.64 mg%, and those from Korean land snail were 6.84 mg%, 6.85 mg%, and 2.74 mg%, respectively. The protein of Korean slug was composed of glutamic acid and aspartic acid as a major amino acids and considerable amount of leucine, arginine, lysine and glycine. The amount of essential amino acids except tryptophan was 40.5% of total amino acid. The amino acid composition of Korean land snail was similar to those of Korean slug. Among the free amino acid in Korean slug, arginine, glutamic acid, alanine and serine showed high quantity and the sum of these amino acids occupied 54.8% of total free amino acid. While methionine and tyrosine were poor in content. In the Korean land snail, alanine, glutamic acid, arginine and lysine were abundant amino acids, and the sum of these amino acids occupied 53.6% of total free amino acid. The quantities of methionine, tyrosine and cystine were, in contrast, very small.

유용성 도료와 수용성 도료의 유해성 비교에 관한 연구 : 자동차 보수용 도료를 중심으로

권은혜,김광식,오정룡,최정근,정윤석,이유진,김은아,송세욱,정호근 한국산업위생학회 2001 한국산업보건학회지 Vol.11 No.1

The purpose of this study is to substitute water-based painting materials for the current solvent-based ones used in motor-repairing process to minimize the exposure of organic solvents to the painters. This study assessed the exposure of organic solvents to the painters using water-based and solvent-based painting materials and compared compositions, painting processes and the health hazards of the application of these alternative painting materials. The results of this study are as follows. 1. solvent-based painting materials used in motor-repairing process consist of various organic solvents, which consist primarily of toluene, xylene, ethyl benzene, ethyl methyl bezene, trimethyl bezene, ethyl acetate, butyl acetate, methyl isobutyl ketone, 2-ethoxy ethanol, 2-ethoxy ethyl acetate and toluene-2.4-diisocianate and the others. These organic solvents are know as health-hazardous substances. But water-based painting materials are high-solid, low-solvent ones and consist of such two organic solvents as 2-butoxy ethanol and 2-heptanone and the others. 2. The painters using solvent-based painting materials in motor-repairing process are exposed to various organic acetate, methyl isobutyl ketone, trimethyl benzene, 2-ethoxy ethanol, and 2-ethoxy ethyl acetate. But the painters using solvent-based ones are only exposed to 2-butoxy ethanol and 2-heptanone. 3. By using water-based painting materials in stead of solvent-based painting materials containing health-hazardous organic solvents, the exposure of such organic solvents in the painter's breathing zone can be largely prevented. 4. This study recommends water-based painting materials as substitutes for the current solvent-based ones used in motor-repairing process to minimize the exposure of organic solvents to the painters.