• BMB Reports
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• 제53권2호
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• pp.100-105
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• 2020

While liver histopathology is heterogeneous in diabetes, the underlying mechanisms remain unclear. We investigated whether glycemic variation resulting from differential diets can induce heterogeneity in diabetic liver and the underlying molecular mechanisms. We generated end-stage non-obese diabetic model rats by subtotal-pancreatectomy in male Sprague-Dawley rats and ad libitum diet for 7 weeks (n = 33). The rats were then divided into three groups, and fed a standard- or a low-protein diet (18 or 6 kcal%, respectively), for another 7 weeks: to maintain hyperglycemia, 11 rats were fed ad libitum (18AL group); to achieve euglycemia, 11 were calorie-restricted (18R group), and 11 were both calorie- and protein-restricted with the low-protein diet (6R group). Overnight-fasted liver samples were collected after the differential diets together with sham-control (18S group), and histology and molecular changes were compared. Hyperglycemic-18AL showed glycogenic hepatopathy (GH) without steatosis, with the highest GSK-3β inactivation because of Akt activation during hyperglycemia; mitochondrial function was not impaired, compared to the 18S group. Euglycemic-18R showed neither GH nor steatosis, with intermediate GSK-3β activation and mitochondrial dysfunction. However, euglycemic-6R showed both GH and steatosis despite the highest GSK-3β activity and no molecular evidence of increased lipogenesis or decreased ApoB expression, where mitochondrial dysfunction was highest among the groups. In conclusion, heterogeneous liver histopathology developed in end-stage non-obese diabetic rats as the glycemic levels varied with differential diets, in which protein content in the diets as well as glycemic levels differentially influenced GSK-3β activity and mitochondrial function in insulin-deficient state.

• Preventive Nutrition and Food Science
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• 제5권1호
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• pp.58-64
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• 2000

Obesity is a global pandemic that is increasing throughout most of the world. Increases in obesity are not restricted to highly industrialized countries, but have been observed in newly developed and developing countries as well. Obesity is associated with increased risk for non-insulin dependent diabetes mellitus, coronary artery disease, and some types of cancer. Tragically, eliminating food shortages in developing countries may result in substituting heart disease, diabetes, and cancer for malnutrition. There are many approaches to reducing obesity, including dietary modification, surgical interventions, and drug therapies. However, only dietary modification has the potential to be effective on a global scale. Public health measures in the United States have sought to reduce obesity by reducing the intake of dietary fat. While these efforts have succeeded in reducing dietary fat, obesity has continued to increase, suggesting that moderate fat reduction may not be effective. Other proposed diets include low-carbohydrate diets, low glycemic index diets, and very low fat diets. While all of these diets may be effective for some people, they are not satisfactory for public health policy. In fact, the ratio of fat to carbohydrate may not be as important as previously believed. Humans may be well suited to adapt to diets as varied as a high carbohydrate tropical diet consisting mostly of fruits to the high fat Eskimo diet consisting largely of animal foods. Either extreme may be healthful if providing adequate, but not excessive, energy and adequate amounts of micronutrients. Public health measures may need to focuss on reducing the overconsumption of inexpensive and convenient foods.

• Journal of Nutrition and Health
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• 제51권5호
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• pp.386-399
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• 2018

본 연구는 고혈압 및 당뇨병 치료 중인 환자 41명을 대상으로 한식 섭취가 12주간의 경과 과정에서 4차례의 방문(0주, 4주, 8주, 12주)을 통해 측정한 혈청 GGT, 혈압 및 glycemic control data, 심혈관계 위험지표 및 식이섭취의 변화를 비교 평가한 결과는 다음과 같았다. 1. 연구대상자는 평균 연령은 $61.8{\pm}1.9$세로 한식군 (21명)의 경우 건강한 한식을 1일 3끼씩 12주간 제공된 식사를 섭취하였고, 대조군 (당뇨병 식이 가이드라인에 따른 관리교육을 받은 자) 20명은 평소 섭취하던 당뇨조절 식사를 그대로 유지하게 하였다. 2. 수축기혈압과 이완기혈압은 두군 간 유의한 차이를 확인할 수 없었으나 맥박수는 한식군에서 대조군에 비해 유의적으로 감소하였다 (p = 0.007). 3. 당화혈색소 (HbA1c)는 한식군에서 연구 참여 전과 후 각각 $6.8{\pm}.2%$, $6.1{\pm}.2%$로 감소하고 대조군은 각각 $6.8{\pm}.2%$, $6.5{\pm}.2%$로 감소되어 한식군이 대조군에 비해 유의적으로 감소폭이 컸다 (p = 0.004). 4. 혈청 GGT는 한식군에서 연구 참여 전과 후 각각 $28.8{\pm}4.5IU/L$, $19.8{\pm}3.2IU/L$로 감소하고 대조군은 각각 $30.0{\pm}4.1IU/L$, $33.9{\pm}5.0IU/L$로 증가되어 한식군이 대조군에 비해 유의적으로 감소하였다 (p < 0.001). 5. 총콜레스테롤, LDL 콜레스테롤 및 중성지방은 한식군에서 대조군에 비해 감소한 경향이었으나 두군 간 유의적인 차이가 없었으며 free fatty acid는 한식군에서 대조군 보다 유의적으로 감소하였다 (p = 0.002). 6. 신체계측 지표인 체중 (p = 0.002), 체질량지수 (p = 0.002), 체지방량 (p < 0.001), 체지방율 (p < 0.001)은 연구 참여 전에 비해 연구 참여 12주 후에 한식군에서 대조군에 비해 유의적으로 감소하였다. 7. 치료약물의 변화량은 두군 간 유의한 차이는 없었으나 한식군에서 대조군보다 많은 수의 환자가 실제로 고혈압, 당뇨병 및 고지혈증 치료 약물을 감량할 수 있었다. 8. 한식군은 연구 참여 동안에 전곡류의 밥, 채소류인 나물류, 김치 및 전통 콩발효식품 등의 섭취량은 대조군에 비해 유의하게 증가하였다 (p < 0.001). 9. 한식군은 동물성식품에서 유래한 동물성 단백질 (p < 0.001), 지질 (p < 0.001) 및 콜레스테롤 (p = 0.034)의 섭취량은 대조군에 비해 유의적으로 감소한 반면, 총칼로리(p < 0.001), 엽산 (p < 0.001), 식이섬유 (p < 0.001), 나트륨(p < 0.001), 칼륨 (p < 0.001), 비타민 A, C, E (p < 0.001) 및 비타민 B류 (p < 0.001)의 섭취는 유의적으로 증가하였다. 이상의 결과를 종합해 보면, 적극적인 전곡류로 만든 밥을 중심으로 한 한식 섭취는 당뇨병 및 고혈압 환자에서 대사성질환 및 심혈관계질환 위험인자인 혈청 GGT, 맥박수, 혈당조절 지표 및 비만지표 개선에 긍정적인 영향을 주었다.

• Clinical Nutrition Research
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• 제11권3호
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• pp.171-182
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• 2022

As a result of a nutrition transition, chronic diseases, including diabetes, have increased in Iran. Nutrition education is a cost-effective method for modifying diet and controlling diabetes. This study aimed to examine the effect of nutrition education using MyPlate recommendations on glycemic and lipid profiles and inflammatory markers in Iranian adults diagnosed with type 2 diabetes. A 12-week randomized clinical trial was conducted on 44 adults aged 30-50 years from Ahvaz, Iran. The participants were divided into education and control groups. The education participants were taught the MyPlate recommendations. Serum levels of fasting blood sugar (FBS), hemoglobin A1c (HbA1c), lipid profiles, and inflammatory markers, including high sensitivity C-reactive protein (hs-CRP), tumor necrosis factor-α, and adiponectin, were measured at the baseline and the end of the study. The results showed that serum levels of FBS (p = 0.014) and HbA1c (p < 0.001) decreased significantly in the education group at the end of the study. The serum level of low-density lipoprotein in the education group declined significantly at the end of the study (p = 0.043). Furthermore, the serum level of hs-CRP (p = 0.005) declined significantly while the level of adiponectin (p = 0.035) increased in the education group at the end of the study. The evidence of this study showed that nutrition education using MyPlate recommendations is an effective method for controlling diabetes complications. A longitudinal analysis with a larger sample size is recommended to confirm the evidence of this study.

• 한국식품영양학회지
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• 제8권4호
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• pp.318-324
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• 1995

The purpose of this study was to Investigate the response of fasting serum glucose and basal insulin to dietary omega-3 fatty fish in normal subjects. Nineteen healthy female volunteer subjects were divided into two groups, depending on fish preference test. Low ap3 fatty acid group for 7 days received a experimental Inlet containing mackeral fish 100g. Calorie intake was 1780 kcal /day. The average 4ally u-3 fatty acid consumption from fish was 3.87g /day (1.03g EPA, 2.849 DHA) . High n-3 fatty acid group was given 7.74g maine u-3 fatty acid (200g mackeral fish) consisting of 2.06g EP45.68g DHA. Calorie intake was 1815 local /day Fasting blond serum glucose, insulin levels were measured at baseline, 7days after experimental diet. In the beginning the levels of fasting serum glucose, basal insulin were not different between both groups. There were no significant changes in fasting serum glucose, insulin levels by experimental diets. These data indicate that marine ar3 fatty acid consumption have no deleterious effect on glycemic control in normal subjects.

• 대한간호학회지
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• 제35권3호
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• pp.546-554
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• 2005

Purpose: This study was a systematic review and meta-analysis of the effects of exercise programs in patients with type II diabetes mellitus. Method: Two investigators systematically searched and reviewed English articles from PUBMED from 1988 to 2004, selecting randomized controlled trials on structured exercise programs for DM patients. Out of 87 studies identified, a meta analysis was done for eleven studies which satisfied inclusion criteria and focused on glycemic indices, lipid indices, and cardiac function indices. Results: The means and standard deviations were compared for experimental groups that received exercise-only or exercise and diet programs and control groups that received no intervention or only diet education. The groups were considered homogeneous as the p value of the Q score in each variable group was over 0.05. The experimental groups demonstrated a moderate positive effect on HbA,c and $VO_{2max}$ (d=0.55 & 0.5), and a small positive effect on fasting blood glucose and cholesterol (d=0.38 & 0.27) compared to the control groups. HDL and LDL cholesterol levels, however, showed a very low positive effect (d=0.11 & 0.12) in the experimental groups. Aerobic exercise was more beneficial than resistance exercise on $HbA_1c$ (d=0.59 vs 0.28) in the groups. Conclusions: Regular exercise has a positive effect on $HbA_1c$, fasting blood glucose, total cholesterol, HDL cholesterol, LDL cholesterol, and $VO_{2max}$ in Type 2 diabetic patients.

• Journal of Nutrition and Health
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• 제54권6호
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• pp.594-602
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• 2021

본 연구는 고지방식이로 유도한 비만 동물모델에서 아연의 식이를 통한 보충 급여가 혈당 조절과 골격 근육의 ZIP7의 작용에 미치는 영향에 대해 살펴보았다. 고지방식이를 공급한 HF군은 정상 대조군에 비하여 단위 체중당 골격 근육 무게가 유의하게 감소하였으며, 혈당은 유의적으로 증가하였다. 고지방식이와 함께 아연을 보충 공급한 HF+Zn군은 아연을 보충하지 않은 HF군과 비교하여, 공복 혈당과 경구 포도당 부하 후 혈당 증가 면적이 유의하게 감소하였다. 또한, HF+Zn군은 HF군에 비해 골격 근육의 ZIP7 단백질 수준이 유의하게 증가하였으며, AKT 활성과 GLUT4 단백질 수준도 유의하게 증가하는 것으로 나타났다. 이상의 결과를 종합해 볼 때, 아연 보충은 비만으로 인한 고혈당 증세를 완화하는 효과를 나타내며, 이는 골격 근육에서의 ZIP7 아연 수송체에 의한 당 대사 조절과 관련이 있을 것으로 생각된다.

• Nutrition Research and Practice
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• 제17권2호
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• pp.297-306
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• 2023

BACKGROUND/OBJECTIVES: The prevalence of diabetes has continued to increase globally. Changes in eating habits, lack of exercise, increased stress, and aging are major contributors. Glycemic control is the key strategy of diabetes management. The purpose of this study was to analyze the utilization of nutrition labels and related factors among patients with diabetes. MATERIALS/METHODS: Data from the 7th Korea National Health and Nutrition Examination Survey were used. General, health-related, diabetes-related characteristics from 1,587 adults with diabetes history were included. Nutrition label utilization was assessed with awareness and use of nutrition labels and effects on food choice. For statistical analyses, chi-square test and multiple logistic regression analysis were performed. RESULTS: The prevalence of awareness, use, and effects of nutrition labels on food choice among diabetic patients were 48.8%, 11.4%, and 9.6%, respectively. High monthly income, walking frequency, family history of diabetes, younger age at diagnosis, and shorter duration of diabetes were associated with higher nutrition label awareness. Nutrition label use and effect on food choice were higher in women, those with high monthly income, those diagnosed at younger than 45 yrs, those with diabetes for less than 10 yrs, those with meal therapy, or patients who had undergone a fundus examination. CONCLUSIONS: Nutrition label utilization status was low in Korean patients with diabetes. Strategies are needed to promote nutrition label use as a diet management tool for patients with diabetes.

• 대한수의학회지
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• 제50권2호
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• pp.105-111
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• 2010

Carnosine is a dipeptide $(\beta-alanyl-L-histidine)$ found in mammalian brain, eye, olfactory bulb and skeletal muscle at high concentrations. Its biological functions include antioxidant and anti-glycation activities. The objectives of this study were to investigate anti-diabetic effects of carnosine as determined by blood glucose levels, glucose tolerance test (GTT), glycosylated hemoglobin, and serum biochemical and lipid levels in streptozotocin-induced diabetic mice. There were five experimental groups including normal (ICR mice), control (saline), and three groups of carnosine at doses of 6, 30, and 150 mg/kg b.w.. Carnosine was orally administered to the diabetic mice everyday for 12 weeks. There was no significant difference in body weight changes in carnosine-treated groups compared to the control. The treatments of carnosine at the dose of 6 mg/kg significantly decreased the blood glucose level compared with the control at 2 and 4 weeks. The treatments of carnosine at the doses of 6 and 30 mg/kg significantly decreased the blood glucose levels in GTT and glycosylated hemoglobin compared with the control. Carnosine significantly increased total proteins compared with the control. Carnosine at the dose of 6 mg/kg significantly decreased total cholesterol and triglyceride in the serum compared to the control. These results suggest that carnosine at a low level has a hypoglycermic effect resulting from reduction of blood glucose and that a carnosine-containing diet or drug may give a benefit for controlling diabetes mellitus in humans.

• 한국콘텐츠학회논문지
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• 제22권3호
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• pp.354-360
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• 2022

대사성 질환은 국내의 경우 유병률이 26%에 이르는 질환으로 복부비만, 고혈압, 공복혈당장애, 고중성지방, 낮은 HDL 콜레스테롤 5가지 상태 중 3가지를 동시에 가진 상태를 말한다. 본 논문은 농촌진흥청의 소비자패널 데이터와 건강보험공단의 진료 데이터를 연계하여 식품 소비 특성을 통해 대사성 질환자군과 대조군으로 나누는 분류 모델을 생성하고 차이를 비교하고자 한다. 기존의 국내외에서 연구된 많은 대사성 질환과 식품 소비 특성 관련 연구는 특정 식품군이나 특정 성분의 질환 상관성 연구이며, 본 논문은 일반 식사에서 포함하는 모든 식품군을 고려한 로지스틱 회귀를 이용한 분류 모델, 의사결정나무 기반 분류 모델, XGBoost를 활용한 분류 모델을 생성하였다. 세 가지 모델 중 정확도가 높은 모델은 XGBoost 분류 모델이지만, 정확도가 0.7 미만으로 높지 않았다. 향후 연구로 환자군의 식품 소비 관찰 기간을 5년 이상으로 확대하고 섭취한 식품을 영양적 특성으로 변환한 후 대사성 질환 분류 모델 연구가 필요하다.