• Title/Summary/Keyword: Function food

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Effects of Ovariectomy on Insulin Resistance and β-Cell Function and Mass

  • Choi, Soo-Bong;Park, Chun-Hee;Jun, Dong-Wha;Jang, Jin-Sun;Park, Sun-Min
    • Preventive Nutrition and Food Science
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    • v.9 no.4
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    • pp.367-373
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    • 2004
  • The prevalence of type-2 diabetes increases remarkably in post-menopausal women, possibly because insulin secretion fails to compensate for the insulin resistance induced in various tissues by estrogen insufficiency. However, this has not been fully defined. Therefore, the present study investigated whether an ovariectomy (OVX) would increase insulin resistance and decrease the $\beta$-cell function and mass in female rats with and without a $90\%$ pancreatectomy (Px). Female rats aged 15 weeks were divided into four groups: 1) OVX + Px, 2) SOVX (sham operation of OVX) + Px, 3) OVX + SPx (sham operation of Px), and 4) SOVX + SPx, and given a $30\%$ fat diet for 8 weeks. At the end of the experimental period, the islet function and insulin resistance were determined using a hyperglycemic clamp and a euglycemic hyperinsulinemic clamp, respectively. The OVX only increased the body weight in the SPx rats, which was partially related to the food intake. Yet, the OVX did increase the peripheral insulin resistance, while the Px increased this resistance further. The OVX and Px both exacerbated the islet function, as measured by the insulin secretion pattern, while delaying and decreasing the first-phase insulin secretion. The OVX only decreased the proliferation of $\beta$-cells in the Px rats, while increasing apoptosis in both the Px and SPx rats. As a result, the OVX decreased the $\beta$-cell mass in the Px rats, but increased the mass in the SPx rats. In conclusion, an OVX was found to accelerate the development and progression of diabetes by increasing the insulin resistance and decreasing the $\beta$-cell mass. Therefore, menopause can be a risk factor for type-2 diabetes, mainly due to a deceased proliferation of $\beta$-cells.

Carnitine and/or GABA Supplementation Increases Immune Function and Changes Lipid Profiles and Some Lipid Soluble Vitamins in Mice Chronically Administered Alcohol

  • Soh, Ju-Ryoun;Kim, Nam-Seok;Oh, Chan-Ho;Oh, Suk-Heung;Cha, Youn-Soo
    • Preventive Nutrition and Food Science
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    • v.15 no.3
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    • pp.196-205
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    • 2010
  • This study evaluated the effects of carnitine and/or GABA supplementation on immune function, lipid profiles and some vitamins in mice chronically administered alcohol. BALB/c mice were fed with either AIN-76 diet (N), control diet plus alcohol (4 g/kg bw, E), E plus 0.5 g/kg bw carnitine (EC), E plus 0.5 g/kg bw GABA (EG), or E plus 0.5 g/kg bw carnitine plus 0.5 g/kg bw GABA (ECG) for 6 weeks. Administrations of the carnitine and/or GABA prevented alcohol-induced increases in triglyceride concentrations in serum and liver. However, there was no difference among the supplemented groups. Serum vitamin E concentration was higher in mice supplemented with EC and EG, but not in mice given ECG. Phagocytic activity of peritoneal macrophages was increased in EG group compared with E group. The subpopulations of murine splenocyte's TH cells were increased significantly in EC and ECG groups. These data suggest that immune function, lipid profiles and some immune-related lipid soluble vitamins were positively changed by supplementation of carnitine or GABA, but do not show any synergistic effect of mixed supplementation.

The Functional Change of Rural Society in Korea: from Food Supply to Balanced Development (한국 농촌의 기능 변화: 식량공급에서 국가균형발전으로)

  • Lim Hyung-Baek
    • The Korean Journal of Community Living Science
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    • v.17 no.1
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    • pp.55-65
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    • 2006
  • The major purposes of this paper are (1) to explore korean rural planning as subplanning of nation planning and regional planning, (2) to explore functional change of korean rural areas, (3) and suggest appropriate policy for functional change of rural society in Korea. I divided korean rural planning into five periods according to its paradigm shift. In the first period of rural planning lay emphasis on food self-supply, antipoverty and improvement of living condition. In the second period of rural planning lay emphasis on food self-supply, green revolution and income gap mitigation between urban and rural areas. In the third period of rural planning lay emphasis on integrated rural development. In the fourth period of rural planning lay emphasis on multifunctionality of agriculture. In the fifth period of rural planning Korea government announced a new policy and lay emphasis on balanced national development. Food supply used to be most important function of rural areas, but it is weakened in recent days. The role as axis for balanced national development become another important function of rural areas.

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Comparative Growth Performance and Physiological Function of Physically Modified Rice Starch and Gelatinized Rice Starch in Growing Rats (물리적 변성 쌀전분과 호화 쌀전분의 생리적 효과 비교연구: 성장 능력과 장기의 생리적 기능)

  • Chang, Moon-Jeong;Kim, Myung-Hwan
    • Journal of the Korean Society of Food Culture
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    • v.18 no.6
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    • pp.592-600
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    • 2003
  • Male rats were fed a purified diet containing one of 3 experimental diets, gelatinized rice starch that was not modified physically (RC), gelatinized physically modified rice starch using ultrasonic homogenizer(RU), gelatinized physically modified rice starch using hydroshear homogenizer(RH) during 28 days. RC was used as the rice starch control. Feeding a physically modified rice starch (RU) caused an increase in liver weight and RH increased RNA and protein contents in kidney significantly although there were no differences in food intakes compared to feeding a RC diet. The wet weight of liver, kidney and heart were higher in RU. The wet weights of fecal output of the rats fed RH was greater than in rice control group. The gut transit time was longer in the rats fed RH than in the rice control group significantly. Serum GOT, GPT, total bilirubin concentration were tended to be lower and blood urea nitrogen was significantly lower in RH group. The maturation index of kidney was higher in RU than in RC. These results suggest that physically modified rice starch improved growth performance and physiological functions in organs of growing rats.

The Glucosinolate and Sulforaphane Contents of Land Race Radish and Wild Race Radish Extracts and Their Inhibititory Effects on Cancer Cell Lines (재래종 무와 갯무 추출물의 암세포주 증식 저해 활성 및 Glucosinolate와 Sulforaphane의 함량)

  • Choi, Sun-Ju;Choi, A-Reum;Cho, Eun-Hye;Kim, So-Young;Lee, Gun-Soon;Lee, Soo-Seong;Chae, Hee-Jeong
    • Journal of the East Asian Society of Dietary Life
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    • v.19 no.4
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    • pp.558-563
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    • 2009
  • The inhibitory effects of land race radish (LRR) and wild race radish (WRR) extracts on cancer cell lines were investigated. A and their glucosinolate and sulforaphane contents were analyzed. The anticancer activitiesy of the LRR and WRR extracts on the breast cancer cell line MCF-7 were determined by a CCK (cell counting kit) assay, in which WWR showed higher inhibition rates than LRR. The sulforaphane content of WRR was higher than that of LRR. In the lung cancer cell line, A-549, WRR showed higher inhibition rates and a higher total glucosinolate content than LRR. The glucosinolate contents of the radishes were analyzed by the Pd-quicktest method, showing that WRR contained more glucosinolate than LRR in both the trunk and root. In conclusion, these results indicate that wild race radish could be used for the quality improvement of radishes.

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Composition, Structure, and Bioactive Components in Milk Fat Globule Membrane

  • Ahn, Yu-Jin;Ganesan, Palanivel;Kwak, Hae-Soo
    • Food Science of Animal Resources
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    • v.31 no.1
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    • pp.1-8
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    • 2011
  • A unique biophysical membrane which surrounds the milk fat globules is called the milk fat globule membrane (MFGM). Various researches were studied about origin, composition, structure and bioactive components of MFGM. Bioactive protein components of MFGM play an important beneficiary function such as defense mechanism in new born. Among the bioactive lipid components from MFGM phospholipids showed health enhancing functions. The phospholipids also help in the production of certain dairy product from deterioration. MFGM phospholipids also showed antioxidant activity in some dairy products such as butter and ghee produced from milk of buffalo. Based on the beneficial effects, researchers developed MFGM as functional ingredients in various food products. This current review focuses on health enhancing function of MFGM and its components in various dairy products.

Association between nutritional status and cognitive functions of the Korean elderly

  • Chung, Hae Kyung;Shin, Dayeon;Kim, Mi-Hye
    • CELLMED
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    • v.7 no.3
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    • pp.13.1-13.10
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    • 2017
  • Nutrition is one of the factors influencing cognitive functions. But, the role of nutrition on cognitive functions within the elderly is recognized to a lesser degree. The aim of this academic endeavor was to analyze the affiliation between nutritional status and cognitive functions of the elderly in Korea. 316 subjects, of 114 male and 201 female aged above 65 years, were gathered from university hospital clinics, Elderly Welfare Centers, and Health Welfare Centers located in the district of Seoul, Gyeonggi province, and Incheon in Korea. The cognitive function was tested by the Korean-Mini Mental State Examination (K-MMSE) questionnaire. Nutrition intake was assessed by a 24-hour recall, a food frequency questionnaire (FFQ). Nutrition adequacy and quality were assessed by the Nutrition Screening Initiative (NSI) checklist, the nutritional adequacy ratio (NAR), and the mean adequacy ratio (MAR). The elderly with normal cognitive function status displayed significantly higher levels of calcium, riboflavin, thiamin, folate, vitamin C, vitamin E, vitamin B6, phosphorous, potassium, iron, niacin, zinc, animal fat, animal protein, polyunsaturated fatty acids, total protein, vegetable oil, vegetable protein, fiber than levels of the elderly with moderate cognitive impairment. The K-MMSE score positively correlated with of high consumption of pork, white radish, sea mustard, tomato, tangerine, grape, apple, and ice cream, and K-MMSE was negatively associated with high intake of potato, anchovy, fish cake, and mushroom. The findings suggest that nutritional status is affiliated with cognitive function within the elderly of Korea. The consumption of variety of foods and nutrients ensures adequate cognitive function in the Korean elderly.