• Korean Journal of Community Nutrition
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• v.20 no.2
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• pp.120-128
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• 2015

Objectives: The purpose of this study was to examine the relative impact of seasonal differences and age on dietary vitamin D intakes, outdoor activity time and serum vitamin D status among Korean postmenopausal women. Methods: A cross-sectional study was conducted with 164 free-living postmenopausal women (mean age=55.4 years) in Daegu, Korea. Dietary intake, daily physical activity patterns and fasting blood samples were collected during summer and winter. We compared the results from 75 women during summer and 89 women during winter. Dietary intake of vitamin D was assessed by 24-hour recall method. Daily outdoor activity time was derived from physical activity diary. Results: The average dietary intake of vitamin D of the participants was $3.7{\mu}g$ during summer, $3.3{\mu}g$ during winter, showing no significant difference between the two seasons. The average time spent on outdoor activities was not significantly different between summer ($=35.1{\pm}75.0min/d$) and winter ($=48.5{\pm}76.8min/d$). The average serum 25-(OH) vitamin D concentrations of participants was $17.5{\pm}7.5ng/mL$ in the summer and $13.4{\pm}4.3ng/mL$ in the winter, showing no significant differences by season. Dietary intake of vitamin D was not related to age. When total subjects were divided into two groups by age, the average serum 25-(OH) vitamin D concentration was significantly higher in older group (p=0.047) and time spent on outdoor activities was also (p=0.018) significantly higher in the older group. Conclusions: In order to improve the current vitamin D status of Korean postmenopausal women, nutrition education programs should focus more on adequate intake of vitamin D, while maintaining enough outdoor activities over the season.

• Korean Journal of Community Nutrition
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• v.17 no.4
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• pp.463-478
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• 2012

This study investigated the health and nutritional characteristics according to household income level and obesity in Koreans aged over 50 years based on the 2005 National Health and Nutrition Examination Survey. Subjects were classified into 3 groups by average household income with reference to the minimum monthly living expenses (MLE): low (n = 319, < 100% MLE), middle (n = 222, < 200% MLE), high (n = 411, ${\geq}$ 200% MLE) and each group was compared by BMI index. With increasing income level, the prevalence of systolic hypertension and hyperlipidemia was increased. In the low income group, serum total cholesterol, triglycerides, and fasting glucose were higher in the obese compared with the normal. In the middle and high income groups, the prevalence of hyperlipidemia and diastolic hypertension were higher in the obese. Subjects had nutritional imbalance, such as inadequate intake of calcium and potassium. With increasing income level, the percentages of protein and fat to total calorie were increased in addition to the intakes and density of nutrients. The obese in the low income group had higher intakes of energy, protein, phosphorus and higher consumption frequency of cereals and potatoes compared with the normal. It was shown that the obese of the middle and high income groups tended to have lower consumption frequency of Korean cabbage and higher frequency of fruits. The obese of high income group also had binge drinking habit. Therefore, this study suggests that specific approaches based on economic status should be considered in developing nutrition education program for the elderly.

• Journal of Korean society of Dental Hygiene
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• v.15 no.6
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• pp.947-961
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• 2015

Objectives: The purpose of the study was to identify the relationship between metabolic syndrome and oral diseases in the middle aged and elderly in Korea. Methods: The study subjects were 6,390 people over 40 years old from 2010 and 2012 Korea National Health and Nutrition Examination Survey. The survey questionnaire consisted of health, nutrition, and oral examination surveys. The independent variables included general characteristics, health behavior, oral health behavior, and metabolic syndrome. The dependent variables included dental caries experience and periodontal disease. The oral examination was carried out by the dentist based on World Health Organization standard. Results: The average prevalence rate of metabolic syndrome MS was 23.79%, including 54.84% of risk group and 21.37% of normal group. The missing teeth rate was 82.38%, DMFT rate was 90.28% and the periodontal disease rate was 33.15%. Those having abnormal fasting blood glucose had 1.17 fold(95% CI: 1.00~1.37) higher periodontal disease than the normal group. The abnormal HDL cholesterol group had 1.25 times higher odds ratio(95% CI: 1.07~1.46) and the obese group had 1.27 times higher odds ratio(95% CI: 1.07~1.51). The risk group had 1.20 times higher odds ration(95% CI: 1.00~1.44) and that of the metabolic syndrome group was 1.60 times higher(95% CI: 1.29~1.97) in periodontal disease. The high blood pressure group had 1.25 times of missing teeth prevalence rate(95% CI: 1.00~1.37). The metabolic syndrome group had 1.47 times of missing teeth prevalence rate(95% CI: 1.11~1.94). Conclusions: The middle aged and elderly people in Korea had higher rate of metabolic syndrome and oral disease. It is necessary to implement the preventive oral health examination for the control of metabolic syndrome and oral diseases prevalence.

• Korean Journal of Clinical Laboratory Science
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• v.41 no.3
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• pp.123-127
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• 2009

After a health examination, abnormal patients were classified into two groups. One needs clinical treatment immediately, while the other one needs check-up in 2~3 month after for blood tests and preventive medical study. To discover the status and importance of the follow-up study in a health program, blood test upon health examination was compared to the test from the follow-up. We examined patients of ages from 20's to 70's. Among these patients, most of them were between 40's and 50's, and in male patients the follow-up test were more freguent than female. We examined blood obtained from January 2007 to December 2008. We analyzed and compared initial and the follow up blood test. Lipid profile, liver test, thyroid function tests (TFTs), glucose fasting, and HbA1c were examined from the blood tests. We also surveyed their distribution and status. The value of the follow up blood tests was significantly decreased with the most striking differences in lipid profiles and liver test. Follow up study is able to improve life style of patients through doctor's advice in a health program. Therefore, we can conclude that the follow up blood test is also quite critical.

• Journal of the Korean Society of Food Culture
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• v.33 no.3
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• pp.291-298
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• 2018

This study examined the effects of plums produced in Gimcheon area on the glucose and lipid metabolism in streptozotocin-induced diabetic rats. Male Sprague-Dawley diabetic rats were divided into four groups: control, diabetic control, Diabetes-low plum (containing 10% plum powder), and Diabetes-high plum (containing 20% plum powder). The animals were fed isocaloric experimental diets based on an AIN-76 diet for 6 weeks. Feed efficiency ratio (FER) of the diabetic groups were significantly lower than that of the control. On the other hand, among the diabetic groups, the FER of the high plum intake group was higher than that of the diabetic control. The liver weight per 100 g body weight of each group was similar but the liver weights tended to decrease as the amount of plum intake was increased. Kidney weight per 100 g body weight of the plum intake groups were significantly different compared to that of the diabetic control. The supplementation of plums lowered the fasting blood glucose level of the diabetic groups and improved the glucose tolerance, thereby lowering the glycosylated hemoglobin index. In addition, the supplementation of plum was lowered the blood total cholesterol concentration and increased the HDL-C/TC (%) significantly, thereby lowering the atherosclerotic index (AI) and hepatic peroxide level. A steady diet of plums produced in Gimcheon may be effective in controlling the blood glucose level and preventing chronic diabetes mellitus.

• The Journal of Korean Medicine
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• v.32 no.5
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• pp.1-11
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• 2011

Objectives: This study was undertaken to evaluate anti-glycemic and anti-lipid effects of Supungsunkihwan-gagambang, which is composed of Cornus officinalis, Dioscorea Batatas Decaisne, Auantii fructus and Platicodon grandiflorum. Methods: Diabetes was induced in ICR male mice ($24{\pm}1g$) with Surwit's high fat and high sucrose diet. Mice were divided into 3 groups (n=10) of normal, control and Supungsunkihwan-gagambang. The Supungsunkihwan-gagambang group was given 5% herbal medicine in their diet. The animals were fed on each experimental diet for 8 weeks. Body weight was assessed every week. At the 7th week, the fasting blood sugar (FBS) and oral glucose tolerance test (OGTT) were conducted in all experimental groups. After 8 weeks, fructosamine, lipid profile, epididymal fat weight, liver weight and white adipose tissue (WAT) size were measured. Results: Supungsunkihwan-gagambang significantly reduced FBS, OGTT and fructosamine. It also increased high density lipoprotein (HDL) cholesterol and significantly reduced triglyceride/HDL cholesterol ratio, total cholesterol/HDL cholesterol ratio and WAT size. Conclusions: These results show that Supungsunkihwan-gagambang improves anti-glycemic and anti-lipid effect in high fat diet-induced obese mice. Therefore we suggest that Supungsunkihwan-gagambang could be an effective treatment for patients with type 2 diabetes.

• Korean Journal of Food Science and Technology
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• v.35 no.3
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• pp.527-531
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• 2003

Hot-water extract from selected medicinal herbs of diabetes prescription was mixed with brown rice and pearled barley flours and extruded to prepare a reconstituted grain for diabetes millitus patients. Even though the cooked reconstituted grain containing medicinal herb extract was somewhat different from cooked ordinary rice in textural properties measured by texture analyzer, it was estimated to be organoleptically acceptable in sensory parameters. The reconstituted grain added with medicinal herb extract reduced the rate of dialysis of glucose evaluated by in vitro dialysis experiment. The effects of reconstituted grain diet on blood glucose levels in diabetes patients were studied during 3-week period. Compared to normal diet, the reconstituted grain diet for 2 weeks significantly decreased the fasting and 2-hr postprandial blood glucose levels in diabetes patients by 14% and 10%, respectively. These results suggested that the reconstituted grain could be used as an effective therapeutic diet for the control of diabetes mellitus.

• Preventive Nutrition and Food Science
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• v.21 no.3
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• pp.165-170
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• 2016

Recent trial results suggest that the consumption of a low glycemic index (GI) diet is beneficial in the prevention of high blood glucose levels. Identifying active hypoglycemic substances in ordinary foods could be a significant benefit to the management of blood glucose. It has been hypothesized that noodles with Bombyx mori powder are a low GI food. We evaluated GI and changes in postprandial glucose levels following consumption of those noodles and compared them with those following consumption of plain wheat flour noodles (control) and glucose (reference) in healthy subjects. Thirteen males (age: $34.2{\pm}4.5years$, body mass index: $23.2{\pm}1.1kg/m^2$) consumed 75 g carbohydrate portions of glucose and the 2 kinds of noodle after an overnight fast. Capillary blood was measured at time 0 (fasting), 15, 30, 45, 60, 90, 120, and 180 min from the start of each food intake. The GI values were calculated by taking the ratio of the incremental area under the blood glucose response curve (IAUC) for the noodles and glucose. There was a significant difference in postprandial glucose concentrations at 30 and 45 min between the control noodles and the noodles with Bombyx mori powder: the IAUC and GI for the noodles with Bombyx mori powder were significantly lower than those for glucose and plain wheat flour noodles. The wheat flour noodles with Bombyx mori powder could help prevent an increase in postprandial glucose response and possibly provide an alternative to other carbohydrate staple foods for glycemic management.

• Preventive Nutrition and Food Science
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• v.21 no.3
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• pp.202-207
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• 2016

The aim of this study was to investigate the association of CD36, a class B scavenger receptor, rs6969989 polymorphism with the serum lipid profiles in Korean women, together with their modulation by oily fish consumption. Subjects were participants from the Korean Genome Epidemiology Study (KoGES), which was initiated in 2001 as a large-scale. A total of 4,210 women aged 39 to 70 were included in this study. Data were collected using self-administered questionnaires, anthropometric measurements, and blood chemical analysis. Dietary intake was analyzed using a semi-quantitative food frequency questionnaire. The minor allele frequency for rs6969989 was found in 12% of this population. Homozygotes minor G allele at the rs6868989 exhibited significantly higher high density lipoprotein cholesterol (HDLC) concentrations (P-trend=0.043) and lower fasting glucose (P-trend=0.013) than major allele A carriers. The risk of low HDL-C was significantly lower in homozygotes for the G allele than the A allele carriers (P-trend=0.032). Gene-diet interaction effects between rs6969989 and oily fish intake were significantly associated with the risk of dyslipidemia (P-interaction=0.004). Subjects with homozygotes minor G allele and high oily fish intake generally had a lower risk of dyslipidemia than did those with major allele homozygotes and low oily fish intake. These findings supported that oily fish consumption may modulate the contributions of CD36 rs6969989 on genetic predisposition to the risk of dyslipidemia.

• International Journal of Human Ecology
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• v.12 no.2
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• pp.13-24
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• 2011

This study compared actual weight with perceived weight, described the prevalence of unhealthy weight control behavior, determined the differences in psychological and personal variables between participants that reported unhealthy weight control behavior and those who did not, and examined the relationship of eating habits to unhealthy weight control behavior for Korean adolescents. The study population consisted of a nationally representative sample of middle and high school students who completed the Fifth Korea Youth Risk Behavior Web-based Survey (KYRBWS): Fifth in 2009. Among the 75,066 participants of KYRBWS, 35,473 (n = 18,851 girls and 16,622 boys) were eligible for a research focused on unhealthy weight control behavior. The results of this research were as follows: First, there were considerable discrepancies (45.1% of girls and 32.8% of boys) between the perceived weight and the actual weight. Second, overall, unhealthy weight control behavior was more prevalent in girls and fasting was the most commonly reported behavior. Third, participants that reported unhealthy weight control behavior scored significantly lower on scaled measures of happiness, health, academic achievement, and economic status; in addition, they scored higher on stress measures. Fourth, girls and boys shared common protective factors of having breakfast and vegetables more often, perceiving their weight as underweight rather than overweight, and having a correct weight conception. Protective factors unique to girls were having lunch and dinner more often. Girls and boys shared common risk factors of the consumption of soda, fast food, instant noodles, and snacks more often, while consumption of fruit more often was a risk factor only for girls. The improvement of protective factors and minimization of risk factors through Home Economics classes (and other classes relevant to health) may mitigate unhealthy weight control behavior of adolescents.