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T : 목차정보

Nutritional sciences 10건

  1. [국내논문]   Effects of Calorie Restriction on Microsomal Mixed Function Oxidase System and Free Radical in Kidney of SAMP8 Mice  

    Kim, Hyun-Jeong ; Choi, Jin-Ho ; Rhee, Soon-Jae
    Nutritional sciences v.7 no.4 ,pp. 189 - 195 , 2004 , 1229-232x ,

    초록

    1bis study investigated the antioxidative effect in kidney of senescence-accelerated prone SAMP8 mice with calorie restriction. 4-weeks-old SAMP8 female mice were divided into 4 groups according to the experimental feeding period: for 4, 8, 12 month, and at natural death. Each group was subdivided into 2 groups, with thirteen mice each one, as ad libitum group and as dietary restriction group (60% of ad libitum feeding amount). After feeding for a given period, the mice were sacrificed to get the following results: among the experimental groups, there wereno significant differences in xanthine oxidase (XOD) activity in their kidney tissues. The contents of cytochrome $P_{450}$ decreased in ad libitum group and dietary restriction group by age. The activity of NADPH-cytochrome $P_{450}$ reductase showed a trend similar to cytochrome $P_{450}$ . Superoxide radical content increased with age. At the 4th, 8th and 12 months of the experimental period, the activity in the dietary restriction group was less than that of ad libitum group by as much as 17% 14% and 14% respectively. For hydrogen peroxide, the contents were increased in the ad libitum group with age, while no correlation between content and age was observed in the dietary restriction group. In the 8th and 12th months of the experimental period, the were in the dietary restriction group less than that of ad libitum group counterpart as much as 17% and 20o/c, respectively. For the cellular membrane stability of the kidney, no significant correlation with age was observed in either the dietary restriction group or the ad libitum group. However at the 12th month of the experiment, however, the stability in the dietary restriction group was 11 % higher than that in the ad libitum group. In conclusion, with these results obtained from the SAMP8 mouse model, we demonstrate that dietary restriction has the effects of anti-oxidation and anti-senescence in the kidney.

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  2. [국내논문]   Effects of Fructans and Isomaltooligosaccharide on Large Bowel Mass and Plasma and Fecal Immunoglobulin A in Rat  

    Sung, Hye-Young ; Jeong, Hyun-Jin ; Choi, Young-Sun
    Nutritional sciences v.7 no.4 ,pp. 196 - 200 , 2004 , 1229-232x ,

    초록

    There are increasing evidences that prebiotics can modulate various properties of the immune system. This study was conducted to investigate effects of three kinds of fructans (chicory inulin, chicory inulin oligosaccharide and fructooligosaccharide) and a glucose oligomer(isomaltooligosaccharide) in large bowel mass and innnunoglobulin A (IgA) in rats. Forty five Sprague-Dawley male rats weighing about 1909 were randomly sorted to receive one of the five treatments, which were control diet, control diet+6% isomaltooligosaccharide (IMOS), control diet+6% fructooligosaccharide (FOS), control diet+6% chicory inulin oligosaccharide (CIOS), or control diet + 6% chicory inulin (CI). Rats were pair-fed and received the experimental diets for 5 weeks. Cecal and colonic wall weights were significantly higher in fructan (FOS, CIOS, CI)-fed groups compared with control and IMOS groups, and the length of colon was elevated in FOS and CIOS groups compared with control group. Fecal concentrations of acetic acid and total short-chain fatty acids (SCFAs) were significantly elevated in fructan-fed groups. Plasma and cecal levels and fecal excretion of immunogiobulin A (IgA) in rats were not significantly different among groups. However, fructooligosaccharide tended to increase IgA level in cecum. Cecal IgA level was significantly negatively correlated with pH of cecal content (r=-0.337), positively correlated with acetic acid level (r=0.310). Fecal IgA excretion was positively correlated with total SCFA (r=0.311) and propionic acid (r=0.400) level in feces. These results indicate that fructooligosaccharide and chicory inulin oligosaccharide exerted trophic effects in large bowel wall, increased production of SCFAs and decreased pH, which were conditions positively associated with cecal and colonic IgA secretion.

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  3. [국내논문]   Inhibitory Effects of Mulberry Fruit on Intestinal Disaccharidase Activity and Hyperglycemia in Streptozotocin-Induced Diabetic Rats   피인용횟수: 2

    Hong, Jung-Hee ; Kim, Sang-Woon ; Choi, Kyung-Ho ; Choi, Sang-Won ; Rhee, Soon-Jae
    Nutritional sciences v.7 no.4 ,pp. 201 - 207 , 2004 , 1229-232x ,

    초록

    The current study examined the effects of freeze-dried mulberry fruit on disaccharidase activity in the small intestine and the lowering of blood glucose in streptozotocin (STZ)-induced diabetic rats. Sprague-Dawley male rats were randomly assigned to one normal and three streptozotocin (STZ)-induced diabetic groups. The diabetic groups were fed a mulberry fruit-free diet (DM-group), 0.3% mulberry fruit diet (DM-F group) or 0.6% mulberry fruit diet (DM-2F group). After they were fed the experimental diets for three weeks, diabetes was induced with an intraperitoneal injection of streptozotocin 50 mg/kg b.w before sacrificing 9 days later using the same experimental treatments. Analyses of anthocyanins, flavonoid and 1-deoxynojirimycin (DNJ) of lyophilized mulberry fruit were carried out and the major anthocyanins were rutin (142.5 mg), isoquercitrin (10.3 mg), quercetin (5.8 mg), morin (1.6 mg) dihydroquercetin (3.83 mg), cy-3-O-glucopyranoside (230.45 mg) and cy-3-O-rutinoside (131.5 mg) on the basis of 100 g dry weight. Total DNJ content was 2.39 mg/g dry weight of lyophilized mulberry fruit. Blood glucose level decreased in the diabetic mts fed the mulberry fruit supplement. The content of the liver glycogen increased in the diabetic mts fed the mulberry fruit supplement. Disaccharidase activity in the proximal part of the intestine, such as that of maltase, sucrase and lactase in the mulberry fruit supplementation groups, were lower than that of the DM group. These results suggest that mulberry fruit possess a suppressive effect on hyperglycemia, possibly by inhibiting the activity of disaccharidase in the small intestine of rats.

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  4. [국내논문]   Relationship among Nutritional Intake, Duration of Outdoor Activities, Vitamin D Status and Bone Health in High School Girls  

    Kim, Ji Young ; Kim, Oh Yoen ; Hyun, Yae Jung ; Koo, Sun Mo ; Song, Sang Hoon ; Jang, Yangsoo ; Lee, Jong Ho
    Nutritional sciences v.7 no.4 ,pp. 208 - 213 , 2004 , 1229-232x ,

    초록

    In this study, we examined the effects of dietary 1,3-diacylglycerol (DG) compared to conventional triacylglycerol (TG) oil on the postprandial response of total and chylomicron TG, glucose, insulin, and free fatty acid (FFA). This study was conducted using a cross-over design. Ninety subjects participated in the high-fat meal tolerance test where they were randomly assigned to consume two experimental sandwiches containing mayonnaise with TG or DG oil with a seven-day interval. Blood samples were collected before ingestion and at 2, 3, 4 and 6 hr time point after ingestion and analyzed for total and chylomicron TG, glucose, insulin, FFA and phospholipid fatty acid composition. Both TG and DG ingestion had similar effects on postprandial TG response, but a different response from chylomicron TG. Compared with the TG group, TG levels were significantly lower only at 6 hr time point in the DG group. On the other hand, chylomicron TG rose steeply at 2 hr time point and decreased faster in this group. Also, the adjusted value to fasting levels was the same as the unadjusted level. Fasting levels and net differences in insulin were significantly lower at 3 hr time point where chylomicron TG levels were significantly lower in the DG group. But those of glucose and FFA in the TG and DG groups did not differ significantly. Fasting and postprandial levels of fatty acid composition in serum phospholipids in the two groups did not differ significantly. In conclusion, this study indicated that one could reduce the magnitude of postprandial lipemia without influencing glucose metabolism by consumning DG oil as a substitute for TG oil. Based on the correlation of coronary artery disease and postprandial lipemia, dietary DG ingestion might have a beneficial effect in treating such a disease. Further studies are required to clarify the long-tenn effects of dietary DG on blood lipid levels in humans.

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  5. [국내논문]   Effects of Dietary Intervention and Simvastatin on Plasma Nitric Oxide in Patients with Hyperlipidemia  

    Yim, Jungeun ; Choue, Ryowon ; Park, Changshin ; Cha, Youngnam ; Chyun, Jonghee
    Nutritional sciences v.7 no.4 ,pp. 214 - 217 , 2004 , 1229-232x ,

    초록

    Dietary intervention and simvastatin is beneficial in the prevention cardiovascular diseases by lowering plasma lipid levels. Endothelial dysfunction is associated with coronary artery disease and its risk factors and is reversed by dietary intervention. It has been suggested that hyperlipidemia contributes to the development of atherosclerosis by increasing inducible nitric oxide synthase (iNOS) expression via intimal thickening. Statins treatment has been found to decrease iNOS expression and atherogenensis in animal models. We hypothesized that dietary intervention and simvastatin therapy could decrease plasma nitric oxide in hypercholesterolemic patients, which would suggest the opportunity for modulation of iNOS expression through the use of statins in a clinical situation. We measured the plasma levels of nitrite and nitrate (NOx) in 19 hyperlipidemia patients. The subjects were under dietary intervention following simvastatin therapy for 12 weeks. As a result, the plasma level of NOx, stable metabolites of nitric oxide (NO), saw a two-fold elevation in hyperlipidemic patients as compared to normal levels. Although 12 weeks of dietary intervention did not lower NOx levels, subsequent 12-week simvastatin (10 mg/day) treatment, along with dietary intervention, lowered NOx levels significantly. This NOx reduction, induced by simvastatin therapy, positively correlated with lowered coronary risk factors (r=0.40, p=0.02). It indicated that simvastatin therapy decreases plasma NOx levels by, perhaps, decreasing iNOS expression or activity leading to the attenuation of the development of neointima.

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  6. [국내논문]   Incidence of Iron Deficiency Anemia in Day Scholar University Girls as Affected by Socioeconomic Status  

    Batool, Nayab ; Nagra, Saeed Ahmad ; Shafiq, Muhammad Imtiaz
    Nutritional sciences v.7 no.4 ,pp. 218 - 222 , 2004 , 1229-232x ,

    초록

    Iron deficiency anemia (IDA) is the world's most common nutritional problem. It is characterized by a low hemoglobin (Hb) level and low iron status. A study was conducted to investigate the incidence of iron deficiency anemia in day scholar girls belonging to different socioeconomic strata at Punjab University, Lahore. Iron status of the subjects was estimated by measuring Hb, hematocrit (Hct), red blood cell (RBC) count, mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCR), serum iron, serum ferritin, total protein and albumin. Results indicated that females belonging to low socioeconomic strata had lower values for Hb, Hct, RBC count, total protein and albumin. Serum iron, serum ferritin, MCV and MCH values fell within the normal range for all of the socioeconomic groups. However, serum iron and ferritin varied with socioeconomic status and higher-income groups had significantly higher serum iron and ferritin. It was concluded that anemia may develop due to poor intake and absorption of iron and that those in the low-income bracket are the most affected group.

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  7. [국내논문]   An Investigation of the Health Foods and Supplements Intake and Its Associated Factors in MiddleㆍOld Aged Adults Living in Seoul and Gyeong-Ki Area  

    Shin, Jeong-Min ; Lee, Min-June ; Kim, Jung-Hyun
    Nutritional sciences v.7 no.4 ,pp. 223 - 234 , 2004 , 1229-232x ,

    초록

    The aim of this study was to investigate intake of health foods and supplements and its associated factors in middle and old-aged adults in order to contribute to health promotion of Korean population by providing a guide for proper use of health foods and supplements. About 69% of the subjects reported that they were currently taking health foods and supplements or had experiences of having them in the past, whereas 31.2 % reported they had never taken them. The most commonly used type of health foods and supplements was vitamin C as reported by 41.8% followed by others such as lactobacillus products, multi-vitamins, tonic medicine and cardiotonic drug, artificially processed Ginseng foods, vitamin B complex, enzyme supplement, calcium, aloe, apricot extract products, chitosan products, loyal honey, squalene, refined fish oil and iron products. The major reason for taking health foods and supplements was 'to protect the weak constitution' with 155 (42.1%) responses, and the motive for the intake was the suggestion from family-relatives with 235 (63.9%) responses, and the place of purchase was pharmacy with 140 (38.0%) responses, the average monthly expense was 20,000-40,000 won with 140 (26.2%) responses, and effects after the intake was 'so and so' with 180 (33.6%) responses as the highest. More health foods and supplements were consumed as age and education were statistically significantly increased (p

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  8. [국내논문]   Dietary Reference Intakes for Energy and Physical Activity  

    Johnson, Rachel K. ; Frary, Carol D.
    Nutritional sciences v.7 no.4 ,pp. 235 - 240 , 2004 , 1229-232x ,

    초록

    The Institute of Medicine of the National Academies Food and Nutrition Board in conjunction with Health Canada recently released the sixth in a series of reports on dietary reference values for the intake of energy and macronutrients. This paper discusses the Dietary Reference Intakes (DRIs) for energy and physical activity. Several new approaches were used with the DRIs for the macronutrients. Those discussed in this paper include: $.$ Estimated Energy Requirements (EER) at four levels of energy expenditure based on doubly labeled water measurements of total energy expenditure (TEE). $.$ Recommendations for levels of physical activity to decrease the risk of chronic disease.

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  9. [국내논문]   Influence of Body Weight Perception on Weight Management Behavior among Korean Female Adolescents  

    Lee, Dae Taek ; Lee, Myung Chon ; Kim, Jae Ho ; Cho, Jung Ho ; Cha, Kwang Suk ; Chandler, Steve B.
    Nutritional sciences v.7 no.4 ,pp. 241 - 246 , 2004 , 1229-232x ,

    초록

    This study investigated the influence of weight perception on weight management strategies including diet and exercise in Korean female adolescents. Junior (J) and senior (S) high school girls were divided in two groups; those who had $\leq$ 100% (BI) and > 100% (AI) of ideal weight (J-BI, n=376, 14.8 yr, 46.1 kg; J-AI, 11=128, 15.0 yr, 57.4 kg; S-BI, n=325, 17.4 yr, 50.1 kg; and S-AI, n=133, 17.5 yr, 58.2 kg, mean values). Questionnaires to assess weight perception, desire to lose weight, body image, eating behavior, weight control strategies and physical activity (PPA) were administered J-AI(9.4 kg) and S-AI(9.8 kg) desired to lose weight more than J-BI(2.5 kg) and S-BI(3.6 kg), respectively (p

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  10. [국내논문]   Effects of Dietary Attitudes on the Nutritional Status of Nurses in Kyungnam Province  

    Bae, Ji-Hyun ; Youn, Hyun Sook ; Choi, Yun Young
    Nutritional sciences v.7 no.4 ,pp. 247 - 253 , 2004 , 1229-232x ,

    초록

    This study has investigated the effect of dietary attitudes on nutritional status of nurses living in Kyungnam province. A total of 249 muses working at hospitals in the Kyungnam area participated in this study. The general characteristics and dietary attitudes of the subjects were surveyed using a self-administered questionnaire, and nutrient intakes were examined using one day 24-hour recall method from November 14 to December 20, in 2001. The data of nutrient intakes were analyzed by the Computer Aided Nutritional Analysis Program and then the diet quality was estimated using the Index of Nutritional Quality (INQ). The subjects were classified as the high score group (17.3 %), medium score group (54.2%), and low score group (28.5%) based on dietary attitude score. The results were as follows: Average age of subjects was 27.1 years old, average nursingexperience was 5.7 years, and 70.7% of the subjects graduated from a junior college. The rate of shift work (45.4%) and non-shift work (54.6%) were similar. The average score on dietary attitudes in thehigh score group was 78.8, and those in he medium score group and in the low score group were 58.6 and 40.8 out of 100 points respectively. The average intake of energy (p $B_1$ (p $B_2$ (p $B_1$ , niacin, vitamin C and P were above 125% of the Korean RDA, and in medium score group, those of vitamin C and P, and in low score group, that of vitamin C were above 125% of the Korean RDA. In the high score group, nutrient of intake below 75% of the Korean RDA was Ca, and those in medium score group were vitamin $B_2$ , Ca, and Fe, and those in low score group were energy, vitamin $B_2$ , Ca and Fe. The intake ratio of Ca and P showed an unbalanceof 1:2, and that of animal protein/plant protein, and that of animal fat/plant fat were high (1.45-1.64) in all group;. The dietary attitude had a positive correlation (p

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