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Nutritional sciences 9건

  1. [국내논문]   Effect of Psyllium Seed Husk on the Postprandial Glucose Control and Insulin Secretion Dynamics  

    Choi Hyun-Ju (Department of Biomedical Laboratory Science, Biohealth Products Research Center, Food Science Institute, Diet Research Center, Inje University ) , Nam Jeong-Su (Department of Biomedical Laboratory Science, Biohealth Products Research Center, Food Science Institute, Diet Research Center, Inje University)
    Nutritional sciences v.8 no.2 ,pp. 83 - 88 , 2005 , 1229-232x ,

    초록

    This study was to investigate the effect of psyllium seed husk (PSYL) on postprandial glucose control and insulin secretion dynamics in Sprague-Dawley rats. In experiment 1, the rise in postprandial serum glucose was monitored during a 240-min period using a maltose loading test In normal rats given 16.6 mg/l00 g B.W./ml of PSYL orally, all the blood glucose levels during the 240-min period did not show statistically significant differences from the corresponding levels in normal rats given water. However, in streptozotocin-induced diabetic rats given the same amount of PSYL, the blood glucose level at 30 min was significantly lower than that in diabetic rats given water, and the peak time of the rise in the postprandial glucose was delayed In experiment 2, the normal (N) and diabetic (Db) rats were given PSYL (25 mg/l00 g B.W./ml/day) orally for 5 days. Blood samples were collected in order to measure the s-glucose and s-insulin levels. The final s-glucose level at day 5 in Db-PSYL was significantly lower than that in the corresponding control rats (Db-CONT) and the final s-insulin level in Db-PSYL was significantly greater than that in Db-CONT. In vitro 40-min pancreas perfusion was performed at day 5 in order to examine the insulin secretion dynamics. Results showed that the amounts of insulin secreted during the first phase (11-20 min) and the second phase (21-40 min) in the Db-PSYL were significantly greater than those in Db-CONT. Therefore, it is concluded that psyllium seed husk could be beneficial for controlling postprandial glucose levels in the stretozotocin-induced diabetic rats, and it may be partially mediated by insulin secretion dynamics.

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  2. [국내논문]   Chronic Alcohol Consumption Induced Tibial Bone Loss and Resulted in Osteopenia in Growing Young Male Rats  

    Kwak Chung Shil (Aging and Physical Culture Research Institute, Seoul National University ) , Song Kye Yong (Department of Pathology, Chung-Ang University College of Medicine ) , Park Sang Chul (Department of Biochemistry, Seoul National University College of Medicine)
    Nutritional sciences v.8 no.2 ,pp. 89 - 96 , 2005 , 1229-232x ,

    초록

    To determine the deleterious effects of chronic alcohol consumption on bone especially in adolescents or young adults, 8 week-old Sprague Dawley male rats were fed with Lieber-Decarli ethanol liquid diet, containing $36\%$ of energy as ethanol, ad libitum (ethanol group) or isocaloric normal liquid diet (control group) for 7 weeks. Body weight was significantly lower in ethanol group than that in control group after 1 week of feeding to the end. liver weight and the ratio of liver or kidney weight to body weight in ethanol group were significantly increased when compared to those in control group. Ethanol group showed significantly lower serum protein and albumin levels (p

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  3. [국내논문]   The Plasma and Urinary Carnitine System in Korean Diabetic Patients  

    Lee Yeoul (Department of Food Science and Nutrition and Research Institute of Human Ecology, Chonbuk National University ) , Heo Young Ran (Department of Food and Nutrition, Collage of Human Ecology Chonnam National University ) , Cha Youn Soo (Department of Food Science and Nutrition and Research Institute of Human Ecology, Chonbuk National University)
    Nutritional sciences v.8 no.2 ,pp. 97 - 103 , 2005 , 1229-232x ,

    초록

    The goal of this study was to investigate abnotmalities in camitine metabolism present by determining blood camitine and lipid concentrations in Korean diabetic patients. The study subjects included 108 Korean diabetic patients (64 males and 44 females) who were hospitalized in Chonbuk National University Hospital and 27 subjects were also hospitalized as non-diabetic controls (10 males and 17 females). Glucose, total cholesterol, triglyceride (TG) and HDL-cholesterol in plasma were enzymatically assayed and insulin was measured by immunoradiometric assay. Nonesterified camitine (NEC), acid-soluble acylcarnitine (ASAC), and acid-insoluble acylcarnitine (AIAC) were determined by a modified radioisotopic method Glucose and insulin levels were significantly elevated in diabetic patients compared with controls. Total cholesterol was elevated in female but not male diabetic patients and triglycerides were elevated both in male and female diabetics. Plasma and urinary total carnitine (TCNE) were significantly elevated in diabetics as compared with normal controls. In male diabetics, NEC concentrations were significantly elevated above controls, but not in female subjects. Plasma NEC and TCNE concentrations were significantly increased in male diabetics, but significantly decreased in female diabetics. All urinary carnitine concentrations were significantly increased in diabetics as compared with controls. Urinary NEC concentrations were four times higher in male diabetics and three times higher in female diabetics than in controls. The ratios of serum and urinary acylcarnitine/NEC were also significantly higher in diabetics than in controls. This study suggested that there was a remarkable abnormality in lipid and carnitine metabolism in Korean diabetic patients, and the further study on carnitine metabolism and the effects of carnitine supplementation for Korean diabetic patients are needed.

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  4. [국내논문]   Dietary Frequencies of Korean American Adolescents in California: Correlation of Acculturation and Parental Dietary Consumption  

    Song YoonJu (Department of Food and Nutrition, Seoul National University ) , Paik Hee Young (Department of Food and Nutrition, Seoul National University ) , Park Haeryun (Department of Food and Nutrition, Myongji University ) , Hofstetter C. Richard (Center for Behavioral Epidemiology and Community Health, Graduate School of Public Health, San Diego State University ) , Hovell Melbourne F. (Center for Behavioral Epidemiology and Community Health, Graduate School of Public Health, San Diego State University ) , Irvin Veronica (Center for Behavioral Epidemiology and Community Health, Graduate School of Public Health, San Diego State University ) , Lee Jooeun (Center for Behavioral Epidemiology and Community Health, Graduate School of Public Health, San Diego State University)
    Nutritional sciences v.8 no.2 ,pp. 104 - 110 , 2005 , 1229-232x ,

    초록

    The purpose of this study was to examine dietary frequencies among Korean American adolescents in California, including the correlation of acculturation and parental dietary Consumption. This study was drawn from cross-sectional telephone surveys based on data from a larger study of Korean Americans in California using random sampling of residential phone listings. A total of 494 Korean American adolescents, ages 12 through 17, in California were collected with dietary frequencies and acculturation and one parents' demographic and dietary consumption information. Three-quarters of adolescents were classified as 'more acculturated group' into the U.S. society with a lower preference to Korean foods, frequent snacking, and lower consumptions of rice and kimchi. Other quarter of adolescents was classified as 'less acculturated group'. However, the most frequent food items by both groups were rice and kimchi. Fruit and vegetable consumption was associated between adolescents and parents in both groups, but rice and kimchi were associated only among the more-acculturated group. In conclusion, dietary frequencies of Korean American adolescents were influenced by acculturation and parental dietary consumption. These findings should inform future epidemiological researches as well as efforts to enhance the diet of Koreans and other immigrants.

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  5. [국내논문]   Vitamin D Sufficiency: How Should it be Defined and what are its Functional Indicators?  

    Hollis Broce W. (Departments of Pediatrics, Biochemistry and Molecular Biology, Medical University of South Carolina)
    Nutritional sciences v.8 no.2 ,pp. 111 - 117 , 2005 , 1229-232x ,

    초록

    It has been more than three decades since the first assay assessing circulating 25 (OH)D in human subjects was performed That publication as well as several that followed it defined 'normal' nutritional vitamin D status in human populations. Recently, the wisdom by which 'normal' circulating 25 (OH)D levels in human subjects were assigned in the past has come under question. It appears that sampling human subjects, who appear to be free from disease, and assessing 'normal' circulating 25 (OH)D levels by plotting a Gaussian distribution is grossly inaccurate. There are many reasons why this method is inaccurate, including race, lifestyle habits, sunscreen usage, age, latitude, and inappropriately low dietary recommendations for vitamin D. For instance, a 400 IU/day. AI for vitamin D is insignificant when one considers that a 10-15 minute whole body exposure to peak summer sun will generate and release up to 20,000 IU vitamin $D_3$ into the circulation. Recent studies, which orally administered up to 10,000 IU/day vitamin $D_3$ to human subjects for several months, have successfully elevated circulating 25 (OH)D levels to those observed in individuals from sun-rich environments. Further, we are now able to accurately assess sufficient circulating 25 (OH)D levels utilizing specific biomarkers instead of guessing what an adequate level is. These biomarkers include intact parathyroid hormone (PTH), calcium absorption, bone mineral density (BMD), insulin resistance and pancreatic beta cell function. Using the data from these biomarkers, vitamin D deficiency should be defined as circulating levels of 25 (OH)D $\leq$ 30 ng/mL. In certain cases, such as pregnancy and lactation, significantly higher circulating 25 (OH)D levels would almost certainly be beneficial to both the mother and recipient fetus/infant.

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  6. [국내논문]   Eating Attitudes, Weight Concerns, Dietary Intake, and Menstruation Among Korean Female Elite Athletes  

    Lee Dae Taek (Kim Chang Kew Exercise Physiology Laboratory, Kookmin University)
    Nutritional sciences v.8 no.2 ,pp. 118 - 124 , 2005 , 1229-232x ,

    초록

    To examine the eating attitudes, weight concerns, dietary intake, and menstrual function of Korean female elite athletes, 109 subjects in seven sports disciplines (rhythmic gymnastics, synchronized swimming, badminton, volleyball, Taekwondo, field hockey, and soccer) responded to a questionnaire consisted of three parts; eating attitudes and behavior(Eating Attitude Test-26; EAT26), body weight perception (Body Dissatisfaction Index: BDI) and weight control behavior, and menstrual history and status. They also recorded three-day dietary intake. Body weight (43.6 $\pm$ 4.3 kg) and body mass index (16.7 $\pm$ 1.4 kg/ $m^2$ ) in rhythmic gymnasts were lower than those in other athletes (P $\pm$ 6.5 total), however, eating disturbances (EAT26 score $\geq$ 20) were highly prevalent in aesthetic athletes ( $30\%$ ) than in others ( $5\%$ ). More than half of the athletes perceived themselves overweight and four fifth of the athletes desired to reduce weight about 4.4 kg. The gymnasts consumed the lowest caloric intake (1028:t371) while the volleyball players did the highest (2995 $\pm$ 342 kcal/d) (P $40\%$ of the subjects reported irregular menstrual cycles, but menstrual dysfunction ( $\leq$ 6 menses/yr) was only $5\%$ . Generally, the Korean female elite athletes desired to reduce weight from their current body weight. No differences in eating attitude and body dissatisfaction were noticed among athletic disciplines. However, eating disturbances were highly prevalent in aesthetic athletes who also reported much less energy intake than the recommend daily energy intake. It appeared that weight reduction methods were not properly practiced in these population. Menstrual dysfunction was minimally reported.

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  7. [국내논문]   Dietary Habits and Lifestyle Factors in Relation to Sa-Sang Constitution  

    Kim Jeongseon (Department of Oriental Medical Food and Nutrition, Semyung University ) , Kang Hye-Jung (Department of Oriental Medical Food and Nutrition, Semyung University ) , Kim Ee-Hwa (College of Oriental Medicine, Semyung University)
    Nutritional sciences v.8 no.2 ,pp. 125 - 132 , 2005 , 1229-232x ,

    초록

    According to Sa-Sang constitution, people can be classified into 4 types, Tae-Yang-In, Tae-Eum-In, So-Yang-In, and So-Eum-In. 1he purpose of this study was to examine any significance between types of Sa-Sang constitution and dietary factors. Physical and constitutional examinations as well as a questionnaire survey were conducted on a group of 483 college students. Among the group of 483 college students, only 428 subjects were determined to have identical constitution through both the questionnaire survey and Korean traditional medical doctors' inquiries. Of 428 subjects, $29.7\%$ were determined to be Tae-Eum-Ins; $35.5\%$ were identified as So-Yang-Ins; $34.8\%$ were classified as So-Eum-Ins. Tae-Eum-Ins showed a statistically significant difference in BMI and higher smoking rate in comparison with groups of So-Yang-Ins and So-Eum-Ins. So-Eum-Ins had a tendency to take vegetables and fruits more often but they had lower preferences for balanced diets. Tae-Eum-Ins showed higher propensity to eat a visible fat protein. In terms of degrees of doneness of meat, So-Yang-Ins showed a higher tendency to prefer well-broiled meat Tae-Eum-Ins also tended to have significantly higher iron, potassium, sodium, vitamin $B_1$ , niacin, $\beta$ -carotene and vitamin E in their diet So-Eum-Ins had significantly lower intakes of protein, phosphorous, and folate. Considering the fact that most chronic degenerative diseases could be developed by any lifestyle factors, it is necessary to conduct educational programs about lifestyles including dietary habits for maintaining good health; On the basis of the results of this study, it is expected that the scientific, objective and accurate diet information depending upon individual's type of constitution will be provided.

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  8. [국내논문]   Antioxidant Status and the Extent of Health Risks in Obese Korean Children  

    Lee WonMyo (Department of Food Science and Nutrition, Dankook University ) , Kim EulSang (Department of Food Science and Nutrition, Dankook University ) , Ha Aewha (Department of Social and Behavioral Sciences, University of North Texas Health Science Center ) , Ximena Urrutia-Rojas (Department of Social and Behavioral Sciences, University of North Texas Health Science Center)
    Nutritional sciences v.8 no.2 ,pp. 133 - 139 , 2005 , 1229-232x ,

    초록

    Objective: The purpose of this study was to determine serum antioxidant nutrients and the relationship between serum antioxidants and risks of chronic diseases in obese Korean children Methods: Normal weight Korean school children (0=170), mean age of 11.5 $\pm$ 1.5, and obese (body fat mass > $28\%$ ) children (0=176), mean age of 11.0 $\pm$ 1.8, were recruited Fat mass ( $\%$ ) was determnined by Bioelectrical Impedance (BEI), and body mass index (BMI) was calculated Fasting blood was collected to measure serum antioxidant nutrients, vitamin A, vitamin E and zinc. Serum lipid profiles including total cholesterol (TC), high density cholesterol (HDL) and triglyceride (TG), and blood glucose, glutamic oxaloacetic transaminase (GOT), and glutamic pyruvic transaminase (GPI) were also determined. Differences in serum blood measurements between obese and normal children were assessed by independent t test. Pearson's correlation analysis was used to determine the relationship between variables. Results: Blood glucose, GPT, total cholesterol, and triglycerides concentrations were significantly higher among obese boys, compared to normal boys (p $\%$ ) was negatively con-elated with serum vitamin A and vitamin E. Conclusion: Obese Korean children showed insufficient serum vitamin E concentration and increased risk for diabetes, atherosclerosis, and liver disease. Since lower vitamin E concentration was negatively con-elated with atherogenic index, improved vitamin E status in children may decrease the risk of atherosclerosis later in life.

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  9. [국내논문]   Measuring Service Quality for Older Adults in Continuing Care Retirement Communities   피인용횟수: 1

    Seo Sunhee (Department of Food and Nutritional Sciences, Ewha Womans University)
    Nutritional sciences v.8 no.2 ,pp. 140 - 147 , 2005 , 1229-232x ,

    초록

    In order to promote foodservice for older adults, foodservice directors in Continuing Care Retirement Communities (CCRCs) must identify the dimensions used by residents to evaluate the service quality of dining service. A multidimensional measure of perceived service quality was developed based on residents' responses about their experiences with dining service. A survey was administered to residents in two CCRCs. Based on the results of principal component analysis, this study identified four dimensions: food quality, dining room employee's attitude and service skills, dining room employee's safety and cleanliness, and systemization of service delivery process. A new dimension that reflects residents' concern for the dining mom employees' safety and cleanliness also emerged. 1bis study points to areas of improvement for food quality and dining room employee's safety and cleanliness.

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