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프레탈^(R)정(실로스타졸 50mg)에 대한 실로졸^(R)정의 생물학적 동등성
최한곤,권기철,이승호,김학미,박병주,유봉규,이종달,이경희,하정희,우종수,박인숙,최진석,용철순 한국병원약사회 2003 병원약사회지 Vol.20 No.1
Bioequivalence of two cilostazol tablets, the Pletaal^(R)(Korea Otsuka Pharmaceutical Co., Ltd.) and the Cilozol^(R)(Hanmi Pharmaceutical Co., Ltd.), was evaluated according to the guideline of KFDA, Sixteen normal male volunteers(age 20~29 years old) were divided into two groups and a randomized 22 cross-over study was employed. After two tablets containing 50㎎ of cilostazol were orally administered. blood was taken at predetermined time intervals and the concentration of cilostazol in plasma was determined with an HPLC method using UV detector. The pharmacokinetic parameters(C_(max), T_(max) and AUC_(t)) were calculated and ANOVA was utilized for the statistical analysis of parameters. The results showed that the differences in C_(max), T_(max) and AUC_(t) between two tablets were 4.99%, 1.74% and 7.68%, respectively. The powers(1-β) for C_(max), T_(max) and AUC_(t) were83.92%, 80.12% and 85.03%, respectively. Detectable differences(Δ) and confidence intervals were all less than 20%, and confidence interval of all the parameters were also less than 20% at the significance level(α) of 0.05. All of these parameters met the criteria of KFDA for bioequivalence, indicating that Cilozol^(R) tablet is bioequivalent to Pletaal^(R) tablet.
Enzymatic Saccharification of Salix viminalis cv. Q683 Biomass for Bioethanol Production
Hak-Gon Kim,Hyun-Jin Song,Mi-Jin Jeong,Seon-Jeong Sim,Dong-Jin Park,Jae-Kyung Yang,Seok-Bong Yoo,Jin-Ki Yeo,Chandrakant S. Karigar,Myung-Suk Choi 강원대학교 산림과학연구소 2011 Journal of Forest Science Vol.27 No.3
The possibility of employing biomass of Salix viminalis cv. Q683 as a resource of bio-energy was evaluated. The chemical analysis of S. viminalis cv. Q683 leaf biomass showed components such as, extractives (2.57%), lignin (39.06%), hemicellulose (21.61%), and cellulose (37.83%), whereas, its stem was composed of extractives (1.67%), lignin (23.54%), hemicellulose (33.64%), and cellulose (42.03%). The biomass of S. viminalis cv. Q683 was saccharified using two enzymes celluclast and viscozyme. The saccharification of S. viminalis cv. Q683 biomass was influenced by enzymes and their strengths. The optimal enzyme combination was found to be celluclast (59 FPU/g substrate) and viscozyme (24 FBG/g substrate). On saccharification the glucose from leaf and stem biomass was 7.5g/L and 11.7g/L, respectively after 72 hr of enzyme treatment. The biomass and enzyme-treated biomass served as the feedstock for ethanol production by fermentation. The ethanol production from stem and leaf biomass was 5.8 g/L and 2.2 g/L respectively, while the fermentation of the enzymatic hydrolysates yielded 5 g/L to 8 g/L bioethanol in 72 hours.
( Hak-jae Lee ),( Sung-bak Ahn ),( Jung Hyun Lee ),( Ji-yeon Kim ),( Sungyeon Yoo ),( Suk-kyung Hong ) 대한외상학회 2023 大韓外傷學會誌 Vol.36 No.4
Purpose: This study aimed to compare the resting energy expenditure (REE) measured using indirect calorimetry with that estimated using predictive equations in severe trauma patients to determine the appropriate caloric requirements. Methods: Patients admitted to the surgical intensive care unit between January 2020 and March 2023 were included in this study. Indirect calorimetry was used to measure the patients’ REE values. These values were subsequently compared with those estimated using predictive equations: the weight-based equation (rule of thumb, 25 kcal/kg/day), Harris-Benedict, Ireton-Jones, and the Penn State 2003 equations. Results: A total of 27 severe trauma patients were included in this study, and 47 indirect calorimetric measurements were conducted. The weight-based equation (mean difference [MD], -28.96±303.58 kcal) and the Penn State 2003 equation (MD, - 3.56±270.39 kcal) showed the closest results to REE measured by indirect calorimetry. However, the REE values estimated using the Harris-Benedict equation (MD, 156.64±276.54 kcal) and Ireton-Jones equation (MD, 250.87±332.54 kcal) displayed significant differences from those measured using indirect calorimetry. The concordance rate, which the predictive REE differs from the measured REE value within 10%, was up to 36.2%. Conclusions: The REE values estimated using predictive equations exhibited substantial differences from those measured via indirect calorimetry. Therefore, it is necessary to measure the REE value through indirect calorimetry in severe trauma patients.
개에서 기절심근 및 관동맥 내피기능 회복에 미치는 관동맥내 Propofol의 영향
유경연,김별아,김학송 대한마취과학회 1998 Korean Journal of Anesthesiology Vol.35 No.5
Background : Oxygen-derived free radicals are known to contribute to tissue injury during myocardial ischemia and reperfusion. Recent in vitro studies have shown that propofol has potent antioxidant properties. The present study was aimed to investigate the effects of propofol on recovery of mechanical and coronary endothelial function in a myocardial stunning model. Methods : Thirty-five dogs were acutely instrumented under halothane anesthesia to measure aortic and left ventricular pressure, pulmonary and left anterior descending coronary artery (LAD) flow, and subendocardial segment length. After completion of the surgery, halothane was replaced by fentanyl- midazolam. Animals were then subjected to 15 min of LAD occlusion and 3 hrs of reperfusion under either intracoronary (i.c.) propofol (5 g/mL, n=11; 20 g/mL LAD flow, n=12) or vehicle (saline, n=12) for 1 hr beginning 30 min before LAD occlusion. Percent segment shortening (%SS) and the slope of the preload recruitable stroke work (Mw), as an index of regional myocardial contractility, and peak lengthening rate (dL/dtmax) and percent post-systolic shortening (%PSS), as an index of regional diastolic function, were evaluated. Coronary endothelial function was assessed by examining LAD flow response to i.c. acetylcholine (ACh, 1 g over I min) and i.c. sodium nitroprusside (SNP, 20 g over I min). The myocardial content of malondialdehyde (MDA) from LAD area was measured to evaluate lipid peroxidation. Results : Despite equally severe ischemic dysfunction during LAD occlusion, recovery of %SS was significantly improved during reperfusion by either dose of propofol compared to controls. However, Mw recovered to the baseline within 60 min of reperfusion in all three groups. In addition, propofol-treated dogs showed better recovery of both indices of regional diastolic function (dL/dtmax and %PSS) as compared to controls. Ischemia-reperfusion similarly attenuated the increases in the LAD flow by ACh in all the groups, whereas it had no significant effect on these increases in LAD flow by SNP. The increase in MDA induced by ischemia and reperfusion was significantly suppressed by either dose of propofol. Conclusions : The results indicate that propofol attenuates mechanical but not coronary endothelial dysfunction in postischemic, reperfused myocardium in an open-chest canine model. The protective action of propofol against mechanical dysfunction is probably due to its effect to reduce lipid peroxidation. (Korean J Anesthesiol 1998; 35: 812∼824)
Bioethanol production from enzymatically saccharified Salix viminalis var. gigantea Leaf and stem.
( Hak Gon Kim ),( Hyun Jin Song ),( Mi Jin Jeong ),( Seon Jeong Sim ),( Young Long Seo ),( Hyun Jeong Im ),( Jae Kyung Yang ),( Seok Bong Yoo ),( Myung Suk Choi ) 한국임학회 2012 한국임학회 학술발표논문집 Vol.2012 No.-
Enzymatic Saccharification of Salix viminalis cv. Q683 Biomass for Bioethanol Production
Kim, Hak-Gon,Song, Hyun-Jin,Jeong, Mi-Jin,Sim, Seon-Jeong,Park, Dong-Jin,Yang, Jae-Kyung,Yoo, Seok-Bong,Yeo, Jin-Ki,Karigar, Chandrakant S.,Choi, Myung-Suk Institute of Forest Science 2011 Journal of Forest Science Vol.27 No.3
The possibility of employing biomass of Salix viminalis cv. Q683 as a resource of bio-energy was evaluated. The chemical analysis of S. viminalis cv. Q683 leaf biomass showed components such as, extractives (2.57%), lignin (39.06%), hemicellulose (21.61%), and cellulose (37.83%), whereas, its stem was composed of extractives (1.67%), lignin (23.54%), hemicellulose (33.64%), and cellulose (42.03%). The biomass of S. viminalis cv. Q683 was saccharified using two enzymes celluclast and viscozyme. The saccharification of S. viminalis cv. Q683 biomass was influenced by enzymes and their strengths. The optimal enzyme combination was found to be celluclast (59 FPU/g substrate) and viscozyme (24 FBG/g substrate). On saccharification the glucose from leaf and stem biomass was 7.5g/L and 11.7g/L, respectively after 72 hr of enzyme treatment. The biomass and enzyme-treated biomass served as the feedstock for ethanol production by fermentation. The ethanol production from stem and leaf biomass was 5.8 g/L and 2.2 g/L respectively, while the fermentation of the enzymatic hydrolysates yielded 5 g/L to 8 g/L bioethanol in 72 hours.