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Min-Seok Oh,Sang-Guei Lee,Ju-Hyun Jeon,Hoi-Seon Lee 한국응용곤충학회 2010 한국응용곤충학회 학술대회논문집 Vol.2010 No.10
To response evaluation of high power light emitting diodes (HPLEDs) as potential attractants to the Spodoptera exigua adults, we investigated the attractiveness of specific wavelength, illuminance intensity and light-exposure time, and compared them to the fluorescent. The all light treatments with the 40 lux intensity attracted the significantly highest number of S. exigua. The optimal light-exposure time exhibited the highest attraction rate at the 60 min. When the attraction and repellent rate in the optimal conditions to the S. exigua was surveyed, the white HPLED exhibited the highest attraction rate (91.1%), whereas the red HPLED exhibited the most repellent rate (33.3%). When evatuated of illuminance efficiency with fluorescent as control, white and red HPLED were found to be 9.14 and 10.34 times more efficient than fluorescent. These data clearly show that both the 40 lux intensity and the 60 min light-exposure time by using the white HPLED was the most suitable for attraction of the S. exigua.
( Hyun Beom Chae ),( Eun Jung Rhee ),( Hae Jung Park ),( Min Kyung Lee ),( Won Seon Jeon ),( Se Eun Park ),( Cheol Young Park ),( Won Young Lee ),( Ki Won Oh ),( Sung Woo Park ) 대한내과학회 2014 대한내과학회 추계학술발표논문집 Vol.2014 No.1
Background: Cardiovascular disease (CVD) is a major clinical problem and the most common cause of morbidity and mortality in patients with chronic kidney disease (CKD). Coronary artery calcifi cation (CAC) is a potential mechanism that explains the association between renal function and cardiovascular mortality. We aimed to evaluate the association between renal function and CAC in apparently healthy Korean subjects. Methods: In 23,617 participants in the health screening program in Kangbuk Samsung Hospital health screening program from January 2010 to December 2011, estimated glomerular fi ltration rate (eGFR) was assessed by Cockcroft-Gault equation. Coronary artery calcium score (CACS) was measured by multi-detector computed tomography (MDCT). Subjects were divided into 3 groups according to the CKD Staging system with eGFR grade; stage 1: eGFR = 90 mL/min/1.73 m2, stage 2: eGFR 60-89 mL/ min/1.73 m2, stage 3: eGFR 30-59 mL/min/1.73 m2. Results: Mean age of the participants was 41.4 years, and mean eGFR was 103.6±21.7 mL/min/1.73 m2. Hypertension and diabetes were noted in 43.7% and 5.5% of the participants, respectively. eGFR showed weakly negative but signifi cant association with CACS in bivariate correlation analysis (r=-0.076, p<0.01). Mean CACS signifi cantly increased from CKD stage 1 to 3. The proportion of subjects who had CAC signifi cantly increased from CKD stage 1 to 3. Although odds ratio for CAC signifi cantly increased from stage 1 to 3 after adjustment for confounding factors, this signifi cance was inversed when age was included in the model. Age was the strongest factor that affects CAC. Conclusions: This study performed in young Korean subjects with relatively normal renal function, age was the mostly strongest effector on the association between eGFR and the degree of CAC.
Radicicol Inhibits iNOS Expression in Cytokine-Stimulated Pancreatic Beta Cells
Youn, Cha Kyung,Park, Seon Joo,Li, Mei Hong,Lee, Min Young,Lee, Kun Yeong,Cha, Man Jin,Kim, Ok Hyeun,You, Ho Jin,Chang, In Youp,Yoon, Sang Pil,Jeon, Young Jin The Korean Society of Pharmacology 2013 The Korean Journal of Physiology & Pharmacology Vol.17 No.4
Here, we show that radicicol, a fungal antibiotic, resulted in marked inhibition of inducible nitric oxide synthase (iNOS) transcription by the pancreatic beta cell line MIN6N8a in response to cytokine mixture (CM: TNF-${\alpha}$, IFN-${\gamma}$, and IL-$1{\beta}$). Treatment of MIN6N8a cells with radicicol inhibited CM-stimulated activation of NF-${\kappa}B$/Rel, which plays a critical role in iNOS transcription, in a dose-related manner. Nitrite production in the presence of PD98059, a specific inhibitor of the extracellular signal-regulated protein kinase-1 and 2 (ERK1/2) pathway, was dramatically diminished, suggesting that the ERK1/2 pathway is involved in CM-induced iNOS expression. In contrast, SB203580, a specific inhibitor of p38, had no effect on nitrite generation. Collectively, this series of experiments indicates that radicicol inhibits iNOS gene expression by blocking ERK1/2 signaling. Due to the critical role that NO release plays in mediating destruction of pancreatic beta cells, the inhibitory effects of radicicol on iNOS expression suggest that radicicol may represent a useful anti-diabetic activity.
Radicicol Inhibits iNOS Expression in Cytokine-Stimulated Pancreatic Beta Cells
Cha Kyung Youn,Seon Joo Park,Mei Hong Li,Min Young Lee,Kun Yeong Lee,Man Jin Cha,Ok Hyeun Kim,Ho Jin You,In Youp Chang,Sang Pil Yoon,Young Jin Jeon 대한생리학회-대한약리학회 2013 The Korean Journal of Physiology & Pharmacology Vol.17 No.4
Here, we show that radicicol, a fungal antibiotic, resulted in marked inhibition of inducible nitric oxide synthase (iNOS) transcription by the pancreatic beta cell line MIN6N8a in response to cytokine mixture (CM: TNF-Ձ, IFN-Ճ, and IL-1Ղ). Treatment of MIN6N8a cells with radicicol inhibited CM-stimulated activation of NF-ՊB/Rel, which plays a critical role in iNOS transcription, in a dose-related manner. Nitrite production in the presence of PD98059, a specific inhibitor of the extracellular signal-regulated protein kinase-1 and 2 (ERK1/2) pathway, was dramatically diminished, suggesting that the ERK1/2 pathway is involved in CM-induced iNOS expression. In contrast, SB203580, a specific inhibitor of p38, had no effect on nitrite generation. Collectively, this series of experiments indicates that radicicol inhibits iNOS gene expression by blocking ERK1/2 signaling. Due to the critical role that NO release plays in mediating destruction of pancreatic beta cells, the inhibitory effects of radicicol on iNOS expression suggest that radicicol may represent a useful anti-diabetic activity.
농업 부산물 바이오매스 특성에 따른 반탄화 공정 최적화: 1. 질량감소 예측 모델 개발
김석준 ( Seok Jun Kim ),오광철 ( Kwang Cheol Oh ),박선용 ( Sun Young Park ),조라훈 ( La Hoon Cho ),김민준 ( Min Jun Kim ),이충건 ( Chung Geon Lee ),정인선 ( In Seon Jeong ),전영광 ( Yeong Kwang Jeon ),김대현 ( Dae Hyun Kim ) 한국농업기계학회 2018 한국농업기계학회 학술발표논문집 Vol.23 No.2
본 연구에서는 국내에서 버려지고 있는 농업부산물의 에너지로서 이용 가능성이 분석되었다. 농업부산물 바이오매스는 화석연료와 동일하게 활용가능하며 지속적으로 생산되는 에너지원이다. 하지만 높은 수분 함량에 따른 보관문제, 화석연료와 비교하여 낮은 발열량등의 단점을 지니고 있어 전처리공정이 요구된다. 따라서 효율적인 활용을 위한 전처리 공정으로 반탄화가 선정되었다. 반탄화공정은 수분제거를 통해 에너지가 증가되어 저장·운송에 이점으로 인하여 최종적인 에너지 가치가 증대된다. 실험은 문헌탐색을 통한 반탄화공정 적용 가능 농업부산물(고추대)과 실험조건(200, 230, 270C, 10, 20, 30, 40 min)이 선정되었으며, 1차원 시뮬레이션을 통한 분석이 이루어졌다. 이때 반탄화 실험을 통하여 발생되는 질량감소량과 발열량 변화량은 높은 상관관계(r<sup>2</sup>=0.9528)를 가지고 있으며 본 연구에서는 반탄화공정의 질량감소량 예측 모델개발이 수행되었다. 질량감소량 분석을 위하여 열 중량 분석(Thermo Gravimetric Analyzer, TGA)이 수행되었으며 승온속도(5, 7.5, 15, 22.5, 30, 37.5°C min<sup>-1</sup>)에 따른 반응속도상수가 도출되었다. 1차원 시뮬레이션 분석을 통하여 바이오매스 내부 온도를 예측하였으며 앞서 도출된 반응속도 상수를 이용하여 질량감소량이 예측되었다. 질량감소량 실험 및 시뮬레이션 결과 평균 r<sup>2</sup>=0.97로 상관관계를 나타내고 있으며 공정온도별 평균제곱근오차(Root Mean Square Error, RMSE)가 200°C-0.0165, 230°C-0.0191, 270°C-0.0207로 나타났다. 공정온도 증가에 따라 정확도가 감소되었으며, 이는 고온의 실험조건에서 발생되는 비응축가스와 온도변화에 의한 열분해 특성에 기인한 것으로 판단된다. 최종적으로 더 나아가서 질량감소 모델을 통한 발열량 예측을 위한 분석이 이루어져야한다.
깊은 근이완의 회복을 위한 Anticholinesterases 의 사전예비정주법
김교상,전정우,이명의,한정욱,민용진,전민선,나도준 대한마취과학회 1994 Korean Journal of Anesthesiology Vol.27 No.12
The success of accelerating the onset of neuromvacular blocking drugs by giving them in divided doses encouraged others to attempt the same $quot;priming principle$quot; using reversal agents. Naguib et al and Abdulatif et al demonstrated that the reversal time(time to reach a TOF of 0.75) was reduced when the reversal agent was administered in divided doses at T, 10% of control. But Donati et al and Szalados et al either could not detect any differences in the rate of reversal when anticholinestereses were administered in divided doses. This study hes been conducted to evaluate the reversal effects of neostigmine or pyridostigmine with priming principle in the rabbit after pancuronium injection when pro- found relaxation(PTC=0) was confirmed. Rabbits(n=60) were randomly allocated to 4 groups. After pancuranium 0.2mg/kg IV, the onset and recovery times were evalusted. When the profound relaxation(PTC=0) was confirmed at Smin. after pancuronium injection, neostigmine 50 ㎍/kg and atropine sulfate (atropine) 20 ㎍/kg we injected in group 1. At thst time, neostigmine 10/kg and atropine 4 ㎍/kg were injected and after 3min. neostigmine 40㎍/kg and atropine 16 ㎍/kg were injected in group 2. At that time, pyridostigmine 250 ㎍/kg and atropine 20 ㎍/kg were injected in group 3. At that time, pyridostigmine 50 ㎍/kg and atropine 4 ㎍/kg were injected and after 3min. pyridostigmine 200 ㎍/kg and atropine 16 ㎍/kg were injected in group 4. The results were as follows : 1) The time until 75% recovery of twitch amplitude was 53.1±12.4min. in group 1, 44.9±212.1min. in group 2, 54.9±9.7min. in group 3 and 48.2±7.1min. in group 4. The reversal times were tended to reduce when the reversal agents were administered with $quot;priming principle$quot; at the profound relaxation. 2) At the profound relaxation the reversal effects of neostigmine were greater than that of pyridostigmine.
Jeon, Seon-Min,Kim, Hye-Jin,Woo, Myoung-Nam,Lee, Mi-Kyung,Shin, Young Chul,Park, Yong Bok,Choi, Myung-Sook Wiley (John WileySons) 2010 Biotechnology Journal Vol.5 No.9
<P>An ethanol extract of fucoxanthin-rich seaweed was examined for its effectiveness as a nutraceutical for body fat-lowering agent and for an antiobese effect based on mode of actions in C57BL/6J mice. Animals were randomized to receive a semi-purified high-fat diet (20% dietary fat, 10% corn oil and 10% lard) supplemented with 0.2% conjugated linoleic acid (CLA) as the positive control, 1.43% or 5.72% fucoxanthin-rich seaweed ethanol extract (Fx-SEE), equivalent to 0.05% or 0.2% dietary fucoxanthin for six weeks. Results showed that supplementation with both doses of Fx-SEE significantly reduced body and abdominal white adipose tissue (WAT) weights, plasma and hepatic triglyceride (TG), and/or cholesterol concentrations compared to the high-fat control group. Activities of adipocytic fatty acid (FA) synthesis, hepatic FA and TG synthesis, and cholesterol-regulating enzyme were also lowered by Fx-SEE supplement. Concentrations of plasma high-density lipoprotein-cholesterol, fecal TG and cholesterol, as well as FA oxidation enzyme activity and UCP1 mRNA expression in epididymal WAT were significantly higher in the Fx-SEE groups than in the high-fat control group. CLA treatment reduced the body weight gain and plasma TG concentration. Overall, these results indicate that Fx-SEE affects the plasma and hepatic lipid profile, fecal lipids and body fat mass, and alters hepatic cholesterol metabolism, FA synthesis and lipid absorption.</P>