Low-Carbohydrate Diets in Korea: Why Does It Matter, and What Is Next?

하경호,송윤주 대한비만학회 2021 The Korean journal of obesity Vol.30 No.3

In recent years, low-carbohydrate diets have become highly popular in Korea as a means to lose weight. People following this regime believe that fat and protein can be consumed in unlimited quantities, as long as carbohydrate intake is strictly restricted. However, low-carbohydrate diets are more complex than simply reducing carbohydrate intake. Meta-analyses of randomized controlled trials revealed that low-carbohydrate diets are at least as effective as low-fat diets in terms of weight loss, but their cardiovascular effects vary. Low-carbohydrate diets confer more beneficial effects on weight loss and lipid profiles such as triglycerides and high-density lipoprotein cholesterol but exhibited detrimental effects on lipid profiles such as total and low-density lipoprotein cholesterol. Korean diets are typically high in carbohydrates, where carbohydrate intake is in the range of 50%–80% of total energy. Within this range of carbohydrate intake, high carbohydrate intake was associated with an increased risk of elevated triglyceride and high-density lipoprotein cholesterol levels but with a reduced risk of elevated total and low-density lipoprotein-cholesterol levels. The optimal range of carbohydrate intake was depicted by a U-shaped relationship between carbohydrate intake and mortality, with 50%–60% of energy from carbohydrates having the lowest mortality risk. The distribution of macronutrients varied greatly according to age and sex groups in Korea. There is no single diet that can be recommended to all individuals, especially if focusing only on the quantity of macronutrients as opposed to their quality. The health benefits of low-carbohydrate or low-fat diets may depend on the source of protein and fat and the carbohydrate quality.

전동기의 전자기 가진력에 의한 고정자 변위 및 고유진동수 해석

하경호(河京鎬),홍정표(洪正杓) 대한전기학회 1999 전기의 세계 Vol.48 No.9

엔드링을 고려한 농형 유도전동기의 2차원 유한요소해석

하경호,홍정표,김규탁,임태빈,Ha, Gyeong-Ho,Hong, Jeong-Pyo,Kim, Gyu-Tak,Im, Tae-Bin 대한전기학회 1999 전기학회논문지 B Vol.48 No.2

This paper proposes an efficient 2D Finite Element Method(FEM) taking into account the end-ring of three phase squirrel-cage induction motors. The parameters of the squirrel-cage induction motor such as conductivity of secondary conductor have an effect on the characteristics of a motor. Especially, if the characteristic analysis is done without considering the end-ring, the good results can not be obtained. Therefore, we calculated a new resistivity of the secondary conductor including the end-ring's resistance to apply the 2D FEM. Then, the performances of the motors are analyzed by using the new resistivity of secondary conductor which contains the end-ring resistivity. The validity of the proposed method is verified by comparing the numerical results with experimental ones.

COMPUMAG 2001을 다녀와서

하경호 대한전기학회 2001 전기의 세계 Vol.50 No.10

Dietary sugar intake and dietary behaviors in Korea: a pooled study of 2,599 children and adolescents aged 9-14 years

하경호,Sangwon Chung,Hyojee Joung,송윤주 한국영양학회 2016 Nutrition Research and Practice Vol.10 No.5

BACKGROUND/OBJECTIVES: Dietary sugar intake, particularly added sugar and sugar-sweetened beverages, has received worldwide attention recently. Investigation of dietary behaviors may facilitate understanding of dietary sugar intakes of children and adolescents. However, the relationship between dietary sugar intake and dietary behaviors in the Korean population has not been investigated. Thus, this study aimed to estimate dietary sugar intake and food sources according to sex as well as examine the relationship of dietary sugar intake with frequent snacking and dietary patterns among Korean children and adolescents. SUBJECTS/METHODS: We pooled data from five studies involving Korean children and adolescents conducted from 2002 to 2011. A total of 2,599 subjects aged 9-14 years were included in this study. Each subject completed more than 3 days of dietary records. RESULTS: Mean daily total sugar intake was 46.6 g for boys and 54.3 g for girls. Compared with boys, girls showed higher sugar intakes from fruits (7.5 g for boys and 8.8 g for girls; P = 0.0081) and processed foods (27.9 g for boys and 34.9 g for girls; P < 0.0001). On average, 95.4% of boys and 98.8% of girls consumed snacks during the study period, and total sugar intake showed a significantly increasing trend with increasing energy intake from snacks (P < 0.0001 for both sexes). Two dietary patterns were identified by cluster analysis: Traditional and Westernized patterns. Total sugar intake was higher in the Westernized pattern (56.2 g for boys and 57.2 g for girls) than in the Traditional pattern (46.5 g for boys and 46.3 g for girls). CONCLUSIONS: These results suggest that multilateral and practical development of a nutrition education and intervention program that considers dietary behaviors as well as absolute sugar intake is required to prevent excessive sugar intake in Korean children and adolescents.

전자궁 적출술 후 발생한 뇌 경색 1예

하경호,연준흠,홍기혁 인제대학교 1997 仁濟醫學 Vol.18 No.2

수술 후 초래되는 뇌졸중은 그 빈도가 매우 드문 것으로 알려져 있다. 저자들은 자궁 근종으로 인한 월경 과다와 월경 곤란증을 주소로 내원한 47세 여자 환자에게 전신 마취 하에 실시한 전자궁 적출술 후 발생한 뇌 경색 1예를 문헌 고찰과 함께 보고하는 바이다. We report a case of acute cerebral infarction after a total abdominal hysterectomy. A 47 year old female patient had suffered from hypermenorrhea and dysmenorrhea due to myoma of uteri for about 1 year. Preoperatively, anesthesiologist and gynecologist visited and evaluated her but any suspicious symptoms related to cerebral infarction was not found. Her past history was non-specific. Anesthesia was induced with thiopental and succinylcholine and maintained wish pancuronium-enflurane-nitrous oxide -oxygen. Postoperatively, she fell into coma and showed abnormal neurologic signs, so she was diagnosed as acute cerebral infarction of middle cerebral artery territory by brain CT, and ultimately expired.

오디 조임근 기능이상을 동반한 간질 감염

하경호,김기용,박근우,김명환,배규환,서창진,한지민,김호각 대한췌담도학회 2011 대한췌담도학회지 Vol.16 No.2

간질증은 주로 소나 양 같은 초식 동물의 간담관에 기생하는 흡충인 간질에 의한 인수공통 감 염증 으로 사람은 주로 간질의 피낭유충에 오염된 수생 식물을 먹음으로써 감염된다. 이러한 간질 증은 간 농양, 담관염, 담관 폐쇄 등을 유발할 수 있다. 저자들은 원인을 모르는 심와부 통증과 호 산구 증가를 동반했던 42세 여자에서 오디 조임근 내압 검사를 통하여 오디 조임근 기능이상을 진 단 및 내시경 조임근 절개술을 시행하였으나 임상적 호전이 없어 혈청 항체를 통해 간질증을 진 단하 였다. 간질증의 치료 약제인 triclabendazole과 bithionol은 전세계적으로 구하기 힘들고 albendazole과 praziquntel의 효과는 낮은 것으로 보고되고 있는데 본 증례에서는 국내에 서 구 하기 쉬운 albendazole과 praziquntel을 우선 투여하고 임상적 호전이 없어 nitazoxanide 를 투 여하고 경과 관찰 중에 있다. 간질증의 치료 약제로 알려져 있지만 국내에서 사용했던 보고 가 없 는 nitazoxanide를 시도하였고 오디 조임근 기능이상이 간질증에 의해 일어날 수 있음을 시 사하 여 본 증례의 의미가 크다고 본다. Fascioliasis is a zoonotic infection by Fasciloa hepatica, a liver fluke that infests cattle and sheep. Humans are infected by eating water plants contaminated with metacercariae. Fasciola hepatica causes liver abscess, cholangitis, common bile duct obstruction and so on. We report a 42-year-old woman who presented with epigastric pain radiating to back and eosinophilia. During follow-up period, liver function was worsen transiently and abdominal computed tomography showed hypodense area in caudate lobe. She was diagnosed with sphincter of Oddi dysfunction on manometry. Endoscopic sphincterotomy was conducted, but epigastric pain was not changed. Additionally we diagnosed fascioliasis serologically. Triclabendazole, treatment of cholice for fascioliasis, cannot be got all over the world. We have tried albendazole and praziquantel, but clinical improvement was not observed. Recently nitazoxanide was given to her, and we are observing clinical course. This report suggests that sphincter of Oddi dysfunction can be caused by fascioliasis.

오디 조임근 기능이상을 동반한 간질 감염

하경호,김기용,박근우,김명환,배규환,서창진,한지민,김호각 대한내과학회 2011 대한내과학회 추계학술대회 Vol.2011 No.-

영양공급 프로토콜 적용 전후의 중환자 영양상태 및 재원일 변화에 대한 관찰 연구

하경호,윤성우,윤신의,김태진,한나,이수경,김영민 순천향대학교 순천향의학연구소 2010 Journal of Soonchunhyang Medical Science Vol.16 No.2

Nutritional support in intensive care unit (ICU) patients is important because it is related with clinical prognosis. We investigated the nutritional support in ICU patients and compared it with evidence-based guidelines. To improve nutritional support, we used the protocol and evaluated its effect. Nutritional data were collected from ICU patients before and after the application of protocol (controls,n = 46; intervention group, n = 41). Until the 72 hours after admission, calorie and protein were supplemented mainly with intravenous nutrition. Since then, the proportion of enteral nutrition (EN) has been to increase. Among 42% of patients who had not taken EN on the 3rd day, we did not find any reasons about that. After application of protocol, mean delivered amount of calorie was increased from 33.1% ± 24.2% to 44.8% ± 27.2% and mean delivered amount of protein was increased from 23.8% ± 19.7%to 36.1% ± 23.0%. But the length of stay in ICU was not affected. We discovered that the application of protocol improved nutritional delivery, but it couldn’t affect the length of stay in ICU.

오디 조임근 기능이상을 동반한 간질 감염

하경호,김기용,박근우,김명환,배규환,서창진,한지민,김호각 대한내과학회 2011 대한내과학회 추계학술대회 Vol.2011 No.1

간질증(fascioliasis)은 주로 소나 양 같은 초식 동물의 간담관에 기생하는 흡충인 간질(Fasciola hepatica) 에 의한 인수공통 감염증으로 사람은 주로 간질의 피낭유충에 오염된 수생 식물을 먹음으로써 감염된다. 이러한 간질증은 간 농양, 담관염, 담관 폐쇄 등을 유발할 수 있다. 저자들은 원인을 모르는 심와부 통증과 호산구 증가를 동반했던 42세 여자에서 오디 조임근 내압 검사를 통하여 오디 조임근 기능이상을 진단 및 내시경 조임근 절개술을 시행하였으나 임상적 호전이 없어 혈청 항체를 통해 간질증을 진단하였다. 간질증의 치료 약제인 triclabendazole과 bithionol은 전세계적으로 구하기 힘들고 albendazole과 praziquntel의 효과는 낮은 것으로 보고되고 있는데 본 증례에서는 국내에서 구하기 쉬운 albendazole과 praziquntel을 우선 투여하고 임상적 호전이 없어 nitazoxanide를 투여하고 경과 관찰 중에 있다. 간질증의 치료 약제로 알려져 있지만 국내에서 사용했던 보고가 없는 nitazoxanide를 시도하였고 오디 조임근 기능이상이 간질증에 의해 일어날 수 있음을 시사하여 본 증례의 의미가 크다고 본다.