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장학철(Hak Chul Jang),박경수(Kyong Soo Park),홍성관(Sung Kwan Hong),신찬수(Chan Soo Shin),한은경(Eun Kyung Han),이문규(Moon Kyu Lee),김성연(Seong Yeun Kim),이홍규(Hong Kyu Lee),고창순(Chang Soon Koh),민헌기(Hun Ki Min),이병두(Byoung 대한내과학회 1990 대한내과학회지 Vol.39 No.5
N/A Several differences in phospholipid fatty acid composition of the erythrocyte membrane have been reported in diabetes mellitus, and these remain controversial. To evaluate the dietary fat intake pattern and the fatty acid metabolism in Korean diabetic patients, fatty acids in the erythrocyte membrane were determined by gas-liquid chromatography in 10 subjects with IDDM, 36 subjects with NIDDM, and 37 control subjects. Significant increases in palmitic acid (p<0.01) and oleic acid (p <005) were observed in erythrocytes from IDDM patients. Significant increases in myristric acid (p<0. 05), palmitic acid (p<0.01), and oleic acid (p<0.05), along with significant decreases in docosahexaenoic acid (p<0.01), were observed in erythrocytes from nonobese NIDDM patients, Similar fatty acid compositions in erythrocytes were noticed in obese NIDDM patients, except for eicosadienoic acid. The P/S ratios in the erythrocyte membrane fatty acids were significantly lower in diabetic patients than in the controls (0.92±0.03 vs 1.01±0.02, p<0.05 in IDDM; 0.85±0.03 vs 0.99±0.02, p<0.01 in nonobese NIDDM; 0.81±0.07 vs 0.99±0.02, p<0.05 in obese NIDDM). The arachidonic: linoleic acid ratio and oleic: stearic acid ratio in the erythrocyte membrane were not different between the diabetic patients and the controls, but the eicosapentaenoic: docosahexaenoic acid ratio was lower in the NIDDM patients than in the controls. These results suggest that an increase in the peroxidation of fatty acids in the erythrocyte membrane might result in a decrease of polyunsaturated fatty acids, especially DHA, and since membrane fatty acids are modified by receut dietary fat intake, we should be concerned about diet therapy, especially fat intake in diabetes. Fish oil supplements in diabetic patients should also be used with caution.
주달래(Ju Dal Lae),장학철(Jang Hak Chul),조영연(Cho Young Yun),조재원(Cho Jae Won),유혜숙(Yoo Hye Sook),최경숙(Choi Kyung Suk),우미혜(Woo Mi Hye),손정민(Sohn Cheong Min),박유경(Park Yoo Kyoung),조여원(Choue Ryowon) 韓國營養學會 2011 Journal of Nutrition and Health Vol.44 No.6
A food exchange system for diabetes is a useful tool for meal planning and nutritional education. The first edition of the Korean food exchange lists was developed in 1988 and the second edition was revised in 1995. With recent changes in the food marketplace and eating patterns of Koreans, the third edition of food exchange lists was revised in 2010 by the Korean Diabetes Association, the Korean Nutrition Society, the Korean Society of Community Nutrition, the Korean Dietetic Association and the Korean Association of Diabetes Dietetic Educators through a joint research effort. The third edition is based on nutritional recommendations for people with diabetes and focuses on adding foods to implement personalized nutrition therapy considering individual preferences in diverse dietary environment. Foods were selected based on scientific evidence including the 2007 Korea National Health and Nutrition Examination Survey data analysis and survey responses from 53 diabetes dietetic educators. While a few foods were deleted, a number of foods were added, with 313 food items in food group lists and 339 food items in the appendix. Consistent with previous editions, the third edition of the food exchange lists included six food categories (grains, meat, vegetables, fats and oils, milk, and fruits). The milk group was subdivided into whole milk group and low fat milk. The standard nutrient content in one exchange from each food group was almost the same as the previous edition. Korea Food & Drug Administration's FANTASY (Food And Nutrient daTA SYstem) database was used to obtain nutrient values for each individual food and to determine the serving size most appropriate for matching reference nutrients values by each food group. The revised food exchange lists were subjected to a public hearing by experts. The third edition of the food exchange lists will be a helpful tool for educating people with diabetes to select the kinds and amounts of foods for glycemic control, which will eventually lead to preventing complications while maintaining the pleasure of eating. (Korean J Nutr 2011; 44(6): 577 ~ 591)
유리지방산이 원형질막 Na+ , K+ - ATPase 에 미치는 효과에 대한 알부민의 역할
이병두(Byoung Doo Rhee),임성희(Sung Hee Ihm),장학철(Hak Chul Jang),박경수(Kyong Soo Park),김성연(Seong Yeon Kim),조보연(Bo Youn Cho),이홍규(Hong Kyu Lee),고창순(Chang Soon Koh),민헌기(Hun Ki Min) 대한내과학회 1988 대한내과학회지 Vol.35 No.1
N/A There is increasing evidence that free fatty acids (FFA) inhibit the activity of plasma membrane Na+, K+-ATPase in vitro and thereby could be a control agent of metabolism. However, in several recent studies, physiological conclusion were drawn from the effect of FFA in systems in which albumin was absent. To explore the role of albumin in modulating the effect of FFA on the activity of this enzyme, the activities plasma membrane Na+, K+-ATPase were measured in the presence of various concentrations of FFA and/or albumin. 1) The activities of Na+, K+-ATPase in the presence of 4% bovine serum albumin (BSA) were inhibited by oleic and linoleic acid at concentrations ranging from 0.05 to 2.0mM. 2) The inhibitory effects of oleic acid at each concentration on the activities of Na+, K+-ATPase were increased as the concentration of BSA was decreased from 4% to 0%. 3) The activities of Na+, K+-ATPase were not inhibited when the FFA to albumin molar ratio was less than 1.0 but were inhibited to less than 50% when the ratio exceeded 3.5. The above results shows that, in vitro, the activities of plasma membrane Na+, K+-ATPase are inhibited by unsaturated FFA and albumin has a protective role on this inhibition. This suggests that in vivo unsaturated FFA could be a regulator of cellular metabolism by inhibition of Na+, K+-ATPase under the pathologic condition in which the FFA to albumin molar ratio is increased markedly.
정상 및 임신성 당뇨병 임신부의 임신 중 체중 증가량와 신생아 체중
김문영(Moon Young Kim),양재혁(Jae Hyug Yang),장학철(Hak Chul Jang),박정은(Jung Eun Park),임창훈(Chang Hoon Yim),정호연(Ho Yeun Chung),한기옥(Ki Ok Han),윤현구(Hyun Koo Yoon),한인권(In Kwon Han),김미정(Mi Jeong Kim),한혜경(Hye Kyung H 대한산부인과학회 2001 Obstetrics & Gynecology Science Vol.44 No.4
Objective : The purpose of this study was to determine the independent factors that predict neonatal birthweight and find the relationship between maternal weight gain and neonatal birthweight in women with normal glucose tolerance (NGT) and gestational diabetes mellitus (GDM). Methods : Forty-six women with GDM and one hundred fifty women with NGT were included in the study. All subjects had singleton pregnancies and no medical diseases that may affect the fetal growth and were certain of gestational age by early ultrasonography. Maternal weight at each prenatal visit was recorded and neonatal anthropometic measurement was done within 2 days of birth. Results : The average rate of weight gain (kg/week) in NGT was lowest during the first trimester (0.09±0.10), peaked during the second trimester (0.52±0.14), and slowed after 34 gestational weeks (0.46±0.26). In women with GDM, the average rate of weight gain was also lowest during the first trimester (0.18±0.23), but it was twofold higher compared with women with NGT. There was a significant decrease of the rate of weight gain after 28 gestational weeks in women with GDM. Total weight gain during pregnancy was 3.4 kg less in women with GDM. Neonatal birthweight was correlated with maternal weight gain and the rate of weight gain during 14-27 and 28-33 weeks in NGT. However, birthweight was correlated with maternal weight gain and the rate of weight gain during the first trimester and 14-27 weeks in GDM. Conclusion : This result suggests that the women with GDM who have greater weight gain during the first and the second trimester have a increased risk of excessive fetal growth. Thus strict glycemic control during pregnancy is needed especially in these women.
이정길(Jung Gil Lee),이성규(Seong Kyu Lee),장학철(Hak Chul Jang),민용기(Yong Ki Min),한인권(In Kwon Han),이성공(Sung Kong Lee),조정현(Jung Hyeon Jo),홍성란(Sung Ran Hong),김희숙(Hi Suk Kim) 대한내과학회 1994 대한내과학회지 Vol.46 No.6
Adrenal myelolipomas are rare, nonfunctioning, benign tumors composed of mature fat and bone-marrow elements. In the past, most cases were discovered incidentally at autopsy. Recently they are detected by ultrasonography, computed tomography, or magnetic resonance imaging scan, done for other reasons, When the preoperative diagnosis is difficult, fine-needle aspiration biopsy can be used to make the diagnosis and avoid an unnecessary operation. We report a case of adrenal myelolipoma that simulated clinically and biochemically a virilizing adrenal tumor. A 32-year-old woman was admitted to the hospital with complaints of hirsutism and amenorrhea. Endocrinologic evaluation showed mild elevation of serum testosterone, but the other adrenal hormones were normal. The computed tomography presented a 12×11×10cm-sized, well-defined, low-density suprarenal mass. The preoperative diagnosis was established by the ultrasono-guided fine needle aspiration. The tumor was surgically removed, then serum testosterone level was decreased and hirsutism was somewhat improved.
최민희(Min-Hee Choi),김정아(Jeong-Ah Kim),한수나(Soo-Na Han),장학철(Hak-Chul Jang) 한국정보기술학회 2010 Proceedings of KIIT Conference Vol.2010 No.-
의료서비스의 전문화 및 다양화 그리고 디바이스의 발달은 대면 중심의 의료체계에서 예방 사후관리, 맞춤형 의료서비스 등 새로운 의료서비스의 형태로 진화하고 있다. 본 논문에서는 지식 엔진 기반 당뇨 유헬스 서비스에 대하여 사례를 통해 환자 데이터를 지능적으로 처리하고 판단한 개인 맞춤형 의료 서비스를 제공해주는 방법을 제공하고자 하였으며. 지식 엔진 기반 당뇨 유헬스 서비스 설계 및 개발 운영 과정에서 주요 이슈들을 도출하여 새로운 의료서비스에 더욱 효율적이고, 간편하게 수행하기 위한 방법을 제공하고자 한다. The specialization and diversity of medial service and the development of device have caused new types of medical services such as prevention, after-care service, and the medical service based on patients' needs. The study examined the examples of Glycosuria U-health service based on knowledge engine to provide the way of individual based medical services, which processes and infers patients' data intelligently. It also aims to provide more effective and convenient method of new medical services by identifying the problems which are caused in the process of Glycosuria U-health service based on knowledge engine.