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급성하벽심근경색 환자에서 흉부유도 ST 절하강의 임상적 의의
이성구(Sung Ku Lee),백효종(Hyo Jong Baek),서상문(Sang Moon Suh),천병도(Byung Do Chun),이중기(Choong Ki Lee),김신우(Shin Woo Kim),우언조(Eon Jo Woo),강승완(Seung Wan Kang),채성철(Shung Chull Chae),전재은(Jae Eun Jun),박의현(Wee Hyun P 대한내과학회 1992 대한내과학회지 Vol.43 No.4
The prognostic significance of precordial ST segment depression during early stages of acute inferior myocardial infarction is controversial. To examine this problem, electrocardiographic findings on admission were compared with the clinical variables in 50 patients with a first transmural inferior infarction. Patients were classified according to the admission ECG obtained an average of 7.0hours after the onset of chest pain. Twenty-five patients (group I) had≥1.0mm ST depression in at least one of leads V1 to V6 and 25 (group II) did not. There were no significant differences between the two groups in peak creatinine kinase activity, prevalence of in-hospital complications (i, e., congestive heart failure, hypotension, arrhythmias requiring treatment and death), and maximal ST elevation in inferior lead. A weak correlation existed between the quantities (mV) of inferior ST segment elevation and precordial ST depression (r=0.43, p<0.05). Thus, precordial ST depression during acute inferior infarction is not a reliable marker of the extent of myocardial damage or an adverse hospital course. Precordial ST segment depression might represent a benign electrical phenomenon.
유산균발효마늘의 유기황화합물과 CYP2E1-Transfected HepG2 Cell에서 알코올 유발 세포독성에 미치는 영향
정은봉(Eun-Bong Jung),최지휘(Ji-Hwi Choi),유희종(Heui-Jong Yu),김기호(Ki-Ho Kim),이성구(Sung-Ku Lee),황용일(Young-Il Hwang),이승현(Seung-Hyun Lee) 한국식품영양과학회 2013 한국식품영양과학회지 Vol.42 No.3
마늘에 적용가능 한 유산균을 찾기 위해 마늘 이외의 배지 성분 없이 각각의 유산균을 배양하고 유산균발효마늘 추출물을 제조하여 각각의 추출물의 유기황화합물을 분석하고 항산화효과 및 알코올 유발 세포독성에 미치는 영향을 알아보았다. 마늘멸균액을 배지로 유산균을 48시간 배양하였을 때 L. plantarum이 가장 잘 자랐으며 유산균발효마늘 추출물 중 항산화활성 등의 효능이 있는 것으로 알려진 SAC 함량은 L. plantarum의 발효물과 P. pentosaceus의 발효물이 각각 3.619 mg/g과 3.234 mg/g으로 가장 많은 것으로 나타났다(p<0.05). 그리고 SAC, SEC, SMC의 경우 유산균발효 마늘 추출물들이 마늘 추출물에 비해 높았으나 alliin의 경우 유산균발효마늘 추출물들이 마늘 추출물에 비하여 낮은 것으로 나타났다(p<0.05). 또한 cycloalliin의 경우 마늘 추출물과 유산균발효마늘 추출물들 간의 함량 차이는 없었다(p<0.05). 모든 유산균발효마늘 추출물이 농도 의존적으로 항산화활성이 높은 것으로 나타났으며, L. plantarum의 발효물과 P. pentosaceus의 발효물이 5.0 mg/g의 농도에서 90% 이상의 높은 전자공여능을 효과를 나타냈다. 유산균발효마늘 추출물들이 100 μg/mL의 농도까지 CYP2E1 transfected HepG2 세포주에 영향을 주지 않았으며, 각각의 유산균발효마늘 추출물을 알코올에 의해 손상된 CYP2E1 transfected HepG2 세포의 보호효과를 확인한 결과 에탄올과 시료를 6일간 처리한 경우에 FGPP와 FGLP가 각각 92.60%와 92.23%로 유의적으로 가장 높은 세포생존율을 보였다(p<0.05). In this study, we investigated changes in the organosulfur compounds of garlic (by fermentation with lactic acid bacteria) and the effects of these fermented garlic extracts on alcohol-induced cytotoxicity in CYP2E1-transfected HepG2 cells. Lactobacillus plantarum has the highest growth rate in a garlic medium and the S-allyl-L-cysteine (SAC) in fermented garlic extracts with Lactobacillus plantarum and Pediococcus pentosaceus were significantly higher compared to other lactic acid bacteria strains (p<0.05). The SAC, S-ethyl cysteine (SEC) and S-methyl cysteine (SMC) in garlic extracts were all increased by fermentation with lactic acid bacteria. However, alliin in the fermented garlic extracts with lactic acid bacteria strains was lower than the original garlic extract and the contents of cycloalliin in the garlic extracts did not change with fermentation (p<0.05). The electron donating ability of the fermented garlic extracts increased with dose. The electron donating ability of the fermented garlic extract with L. plantarum and P. pentosaceus was over 90% efficient at 5 mg/g. The fermented garlic extracts (with lactic acid bacteria) and garlic extract were not influenced, up to 100 μg/mL, in CYPE1-transfected HepG2 cells. The CYPE1-transfected HepG2 cell viabilities were 92.60% and 92.23% when treated with both alcohol (200 mM) and fermented garlic extract (100 μg/mL) with lactic acid bacteria respectively, for 6 days.
李聖求 단국대학교 사범대학 특수교육과 1983 특수교육 Vol.3 No.-
1. Problems The purpose of this study is to display which hemispheric preference is related to academic achievements and IQ. The major research problems are as follows: 1) The relationship between dominant hemispheric preference and academic achievements. (1) The students who have dominant left hemispheric functions will have a close interrelationship with school subjects which belong to same hemispheric functions. The school subjects are Korean Language, Mathematics, Chemistry, Biology, English, German and French. (2) The students who have dominant right hemispheric functions will have a close interrelationship with school subjects which belong to same hemispheric functions. The school subjects are Physical Educations, Music, Drawing, Technique and Industry. 2) The relationship between dominant hemispheric preference and intellectual factors. (1) The students who have dominant left hemispheric functions will have a close interrelationship with verbal and numerical ability. (2) The students who have dominant right hemispheric functions will have a close interrelationship with visuo-spatial ability. (3) The students who have integrated functions will have a close interrelationship with IQ. 2. Methods 1) Subjects: The subjects consisted of 327 first grade students of high school in Seoul. (boys: 159, girls: 168). They were sampled from academic track schools. 2) Instrument: "The Your Style of Learning and Thinking," Form-B was the assesment instrument employed to determine hemispheric preferences. 3) Procedure: The data were collected and scored using the scoring key contained in the Norms - Technical Mannual for Your Style of Learning and Thinking, Form-B (Torrance, et al., 1978). Each subject's responses were classified as being either right hemisphere oriented, left hemisphere oriented of hemispherically integrated. Then the sum total of all right hemispheric responses was calculated for each subject. Sums were also calculated for both the total left hemispheric and integrated responses of each subject. Each dominant hemisphere was compared with each school subject. Related school subjects were Korean Language, Mathematics, Chemistry, Biology, Physical Education, Music, Drawing, English, French, German, Technique and Industry. Related intellectual factors were verbal ability, spatial ability, numerical ability and IQ. 3. Results The results of this study are as follows: First, Mathematics, Chemistry, Biology and Numerical ability were confirmed as having significantly greater interrelationship with left hemispheric responses as expected in research problem. Second, Korean Language, English, French, German and Verbal ability didn't display any interrelationship with left hemispheric responses. Third, Technique and Industry displayed slightly significant interrelationship but Music and Physical Education didn't display any interrelationship with right hemispheric responses. Fourth, Spatial ability displayed higher significant interrelationship and Drawing also displayed slightly significant interrelationship with integrated responses. Fifth, IQ was confirmed as having closely significant interrelationship with integrated responses as expected in research problem. On the basis of the results, this study, as a whole, displayed Significant interrelationship as expected in research problems and the measuring instrument of hemispheric preference was proved to have some validity in this study. This study can be summarized as follows: First, Left hemispheric functions were more related to science and numerical ability than language subjects. Second, Technique and Industry displayed a bit of significant interrelationship with right hemispheric functions but they displayed negative interrelationship. Third, IQ and Spatial ability displayed greatly significant interrelationship and Drawing also displayed some significant interrelationship with integrated functions. Finally, As showed in this study, Science and Mathematics displayed strong tendancy toward left hemispheric functions. Those who insist the importance of hemispheric functions have critical viewpoint on the emphasis of left hemispheric functions. They insist that right and integrated hemispheric functions be developed. It will be necessary to make a good measuring instrument through more detailed item analysis and also necessary further studies testifying both hemispheric symmetry or dominant integrated functions. It the contents of learning can be programmed and students can be educated.