• Title/Summary/Keyword: long-term intake

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Photoprotective Effect of Lotus (Nelumbo nucifera Gaertn.) Seed Tea against UVB Irradiation

  • Kim, Su-Yeon;Moon, Gap-Soon
    • Preventive Nutrition and Food Science
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    • v.20 no.3
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    • pp.162-168
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    • 2015
  • Lotus (Nelumbo nucifera Gaertn.) seed is widely used as a traditional medicine in countries of Asia. Among many functions of the lotus seed, one interesting activity is its skin protection from the sunlight and scar. In this study, we focused on the skin protective property of lotus seed tea against ultraviolet B (UVB) irradiation. Two groups of a hairless mouse model, water as control (water group) and lotus seed tea (LST group), were administrated a fluid drink water for six months. After 6 month of administration, UVB exposure was carried out to both groups for another 3 months. During and after the administration, the skin moisture content and the morphological and histopathological analyses through biopsy were carried out. Prior to UVB irradiation, no significant difference was discovered in the skin moisture content for the water group and LST group (P<0.05). However, drastic changes were observed after the UVB treatment. The LST group showed a clear evidence of skin protection compared to the control group (P<0.05). The moisture content, epidermal and horny layer thickness, and protein carbonyl values all revealed that the intake of the lotus seed tea enhanced protection against UVB exposure. As a result, the long-term intake of the lotus seed tea showed the effect of preventing loss of skin moisture, mitigating the formation of abnormal keratinocytes, and contributing to protein oxidation inhibition.

Development and Evaluation of a Nutrition Education Website for the Prevention and Management of Childhood Obesity (어린이의 비만 예방과 관리를 위한 영양교육 웹사이트 개발 및 평가)

  • Yon, Mi-Yong;Park, Chan;Yoo, Kwan-Hee;Hyun, Tai-Sun
    • Korean Journal of Community Nutrition
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    • v.17 no.4
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    • pp.390-406
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    • 2012
  • Childhood obesity has rapidly increased worldwide and is one of the most serious health problems in this age group. In order to prevent and manage childhood obesity, we developed a nutrition education website. The website consisted of three parts. The first part was made for self-assessment with regard to obesity index, dietary habits, food frequency, dietary attitude, nutrition knowledge, nutrient intake, energy expenditure, and the stage of behavioral change, and tailored messages and advice according to the assessment results. A total of 612 real-size food photos as well as a nutrient database of 3,346 foods and 541 dishes were created to help children estimate nutrient intakes accurately. In addition, an energy expenditure database of 156 activities for children was established to calculate calorie consumption. The second part was made for setting long-term and short-term goals and keeping track of the changes in energy intake and expenditure in one's own page. The third part was made for education. Various types of nutrition information were provided; texts, pictures, calculators and games. The readability and design of the website were evaluated by 46 obese children. Usefulness, design and readability of the website were found to be desirable for children. This website is expected to be used by an obese child alone or with parents or nutrition teachers in order to control body weight through healthy dietary habits and physical activities. In addition, a non-obese child can also use this website for maintaining healthy dietary habits and preventing obesity.

Benefits of Fermented Milk in Rats Fed by Hypercholesterolemic Diet (II) (콜레스테롤 투여 흰쥐에 있어서 유산균 발효유의 식용결과 (II))

  • 이용욱;노우섭;김종규
    • Journal of Food Hygiene and Safety
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    • v.7 no.2
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    • pp.123-135
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    • 1992
  • This study was performed to investigate the term effect of fermented milk in drink on rats fed by cholesterol diet. 150 to 5-week-old male rates of Sprague-Dawley strain weer divided into six groups according to diet and content of fermented milk in drink. The first group served as normal control group fed by synthetic pellets of standard diet. The second , cholesterol control group, was treated with standard diet containing 1% of cholesterol and 500000IU/100g of vitamin D2. The other four groups. fermented milk groups, FM-25,FM-50 , FM 75 and FM-100 were treated with the cholesterol and vitamin D2 diet and supplied with 25%, 50%, 75%, 100% of fermented milk in drink , respectively. The animals were sacrificed for analysis in 3, 6, 9 and 12 months. Weight gain, diet intake , and drink consumption were significantly different among groups. Fermented milk reduced serum cholesterol to a significant effect (p<0.05) and significantly increased the ratio of high density lipprotein cholesterol to total cholesterol(p<0.05). Serum triglycerides were reduced to a smaller and less significant effect in fermented milk group. The aorta and liver of fermented milk showed slighter medial calcification and necrosis and milder fat degeneration than did the cholesterol control group. Supplementation of fermented milk may have a helpful effect on hypercholesteremia and atherosclerosis.

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Long-Term Effects of the DHA Supplementation on Physical and Brain Development in Full-Term Infants (장기간에 걸친 DHA 보충이 영아의 신체발육 및 두뇌발달에 미치는 영향)

  • 정현주
    • Journal of Nutrition and Health
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    • v.31 no.8
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    • pp.1295-1306
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    • 1998
  • Recent research indicates that the n-3 fatty acid , docosahexaenoic acid(22 : 6n 3, DHA) plays an essential role in infant brain development . DHA is highly concentrated in brain and retinal tissues and accumulates during late fetal and early neonatal life. Diets deficient in DHA are associated with reduced levels of DHA in brain and retinal tissues. The purpose of this study is to investigate the long term effects of DHA supplementation on the growth and mental development of full-term infants. THirty four healty infants were recruited from those who were delivered at Kyung Hee Medical Center. The experimental groups were the breast milk+DHA(-) group who were fed human milk for 20 weeks after birth and thereafter were fed placebo formula for 28 weeks, the breast milk+DHA(+) group who were fed human milk for 20 weeks after birth and thereafter were fed DHA supplemented formula for 28 weeks, DHA(-) group who were fed placebo formula for 48 weeks, and DHA(+) group who were fed DHA supplemented formula for 48 weeks. The daily average intake of DHA for the breast milk+DHA(-) , breast milk+DHA(+), DHA(-) and DHA(+) groups were 39.1mg, 89.9mg, 17.7mg, and 160.224mg, respectively. The results showed that measurements of infant weight, length, head, and chest circumferncewere all in normal range and they were not influenced by the DHA supplements in their diets. There was a significant correlation between dietary DHA intake and erythrocyte DHA level. The results of flash visual evoke potential (VEP) test were not correlated with eerythrocyte DHA and dietary DHA levels at 48 weeks of age. No differences were found in Bayley mental and Psychomotor Development lndex scores among the four experimental groups at 48 weeks of age. Unlike the short-term effects there was no long-term effect of relatively small amounts of dietary DHA supplements on the scores for flash VEP and Bayley test, even thour호 there was an elevated DHA supplements on the scores for flash VEP and Bayley test, even through there was an elevated DHA content in the infants erythrocytes.

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A Literary Study on Vermilionum (영사(靈砂)에 관(關)한 문헌적(文獻的) 고찰(考察))

  • Kwon, Ki-Rok;Kang, Tae-Sik;Kim, Sung-Wook
    • Journal of Pharmacopuncture
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    • v.6 no.2
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    • pp.113-118
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    • 2003
  • Results : 1. Vermilionum is made from the mixture of mercury and sulfur, resulting in reddish mercuric sulfide(Hg2S). 2. The characteristics for Vermilionum are pungent and sweet, has warm temperature, and enters heart, lung, and stomach meridians. 3. The efficacies of Vermilionum are to eliminate parasites, expels phlegm and dampness, and sedate heart and calm spirit. 4. Long-term intake make results in mercuric toxication. 5. Further researches on the administration methods and dosages are required to reduce side effects.

Estimation of Available Permit Water for Large Scale Agricultural Reservoirs in Youngsan River Basin (영산강권역 대규모 농업용 저수지의 가용허가수량 추정)

  • Kim, Sun-Joo;Park, Ki-Chun;Park, Hee-Sung
    • Journal of The Korean Society of Agricultural Engineers
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    • v.54 no.1
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    • pp.93-97
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    • 2012
  • Agricultural water reservoirs upstream of the intake on the basis of the intaking water volume is being made. Therefore, the supply capacity of reservoirs are not considered when the water balance analysis, storm water reservoirs are based on agriculture and further secured by the reservoir water is not used to using natural river water analysis. To overcome these problems can supply reservoirs are available to permit analysis of how much the quantity of water balance analysis, it should be reflected in the line to help. In this study, the natural daily flow data and apply the dimensions of the reservoir, and for more than 30 years of the long-term water balance analysis conducted by Date Youngsan river basin can supply reservoirs are large quantity of permits available is presented.

Glucose-lowering Effect of Powder Formulation of African Black Tea Extract in $KK-A^y/TaJcl$ Diabetic Mouse

  • Shoji, Yoko;Nakashima, Hideki
    • Archives of Pharmacal Research
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    • v.29 no.9
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    • pp.786-794
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    • 2006
  • We observed the suppressive effect of a powder formulation of African black tea extract prepared from the leaves of Camellia sinensis on type 2 non-insulin dependent diabetic mice, $KK-A^y/TaJcl$. Black tea extract significantly showed suppressive effect of the elevation of blood glucose on oral glucose tolerance test of 8 week-old $KK-A^y/TaJcl$ mice (p<0.05). Long-term treatment with black tea extract showed significant suppression of post-prandial blood glucose and obesity (p<0.05). The weight of the intestine of mice treated with black tea extract was significantly reduced (p<0.05). From these results, African black tea used in this study showed a suppressive effect on the elevation of blood glucose during food intake and the body weight.

Alcohol-Induced Pathological Changes of Femur and Liver in the Castrated Rats

  • Do, Sun-hee;Kim, Yoo-kyung;Jeong, Kyu-shik
    • Proceedings of the Korean Society of Veterinary Pathology Conference
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    • 2003.10a
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    • pp.19-19
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    • 2003
  • Osteoporosis is usually considered a disease of older women reported the rate, pattern and determinants of bone loss, far less information is available for men although it is also common in men [1,2]. The three major causes of osteoporosis in men are excessive alcohol intake, long-term glucocorticoid therapy, and hypogonadism [3,4]. In process of bone resorption, type I collagen crosslinking molecules, pyridinoline (PYD) are released into the circulation and cleared by the kidney. $^2$H$_2$O as a tracer has been applied to measure synthesis rates of slow-turnover proteins and successfully applied to bone collagen synthesis, skeletal muscle and cardiac muscle in rat. The objective of this study was to examine osteoporosis and alcohol-induced changes of femur and liver in post-menopausal males using the developed method. (omitted)

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Recent Advances in the Nutrition of the High Producing Sow -Review-

  • Easter, R.A.;Kim, S.W.
    • Asian-Australasian Journal of Animal Sciences
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    • v.11 no.6
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    • pp.769-773
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    • 1998
  • Genetic advances, changes in housing systems and new management strategies have made it necessary to thoroughly review conventional nutritional programs. The approach has changed from one of feeding to permit gradual depletion of fat and protein tissues to one of feeding to maintain long-term nutritional balance. Increasingly the sow is viewed as a dynamic system that can be described by a mathematical model. There is opportunity to improve the initial models through research to provide a better understanding of metabolism and key physiological events in the sow's reproductive life. Direct experimentation remains a very important tool for defining nutritional requirements. Recent data supports increases in amino acid recommendations during lactation. Voluntary feed intake remains an intractable problem during lactation.

An Analytic Study on the Valve Rotation Behavior of an Internal Combustion Engine (내연기관 밸브회전 거동에 관한 해석적 연구)

  • Kim, Do-Joong;Youn, Jae-Won;Kim, Jin-Woung;Song, Jin-Ook
    • Transactions of the Korean Society of Automotive Engineers
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    • v.14 no.2
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    • pp.184-193
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    • 2006
  • Rotation of intake and exhaust valves are very closely related to the long term durability of automotive engines. If the valves do not rotate even at a rated engine speed, it causes the uneven wear of the valve seat and valve head contact area, which eventually shortens the engine life. A principle of valve rotation mechanism was presumed based on some findings from experiments, and computer programs were developed to simulate the valve rotation phenomena. In this study we investigated the valve rotation mechanism by using the computer simulation models.