• 제목/요약/키워드: functional nutrients

검색결과 174건 처리시간 0.03초

Genetic Polymorphisms in Drug Transporters and Regulatory Xenobiotic Receptors in Korean Population

  • Lee, Sang-Seop;Shin, Jae-Gook
    • 한국환경성돌연변이발암원학회:학술대회논문집
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    • 한국환경성돌연변이발암원학회 2004년도 춘계학술대회
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    • pp.27-29
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    • 2004
  • Drug transporters play an essential role in the absorption, distribution and elimination of clinical drugs, nutrients and toxicants. The importance of the transporters is exampled by therapeutic failure in cancer chemotherapy that is mainly caused by the overexpression of multidrug resistance (MDR)-related transporters. In addition, the transporters may involve in drug-drug interactions that lead to serious adverse drug responses and some transporters also contribute to inter-individual variation in drug responses. As an effort to understand the mechanism underlying the inter-individual variation of transporters activity, genetic and environmental factors influencing the expression or function of the transporters have extensively explored through last decade. Among them, genetic polymorphism of drug transporter encoding genes has generated much interest since the discovery of functional single nucleotide polymorphisms (SNP) of MDR1 gene. Besides drug transporters, xenobiotic receptors also modulate drug disposition by regulating the transcription of drug metabolizing enzymes and drug transporters. Among many xenobiotic receptors, pregnane X receptor (PXR) and constitutive androstane receptor (CAR) are two most well characterized since these receptors show wide substrate specificities and regulate the expression of various enzymes involved in drug disposition. Recently, several functional genetic polymorphisms were reported in PXR coding gene. In the present study, genetic polymorphisms of two drug transporters, MDR1 and BCRP, and two xenobiotic receptors, PXR and CAR, were investigated in Korean population.

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Genetic Polymorphisms in Drug Transporters and Regulatory Xenobiotic Receptors in Korean Population

  • Lee, Sang-Seop;Shin, Jae-Gook
    • 한국독성학회:학술대회논문집
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    • 한국독성학회 2004년도 춘계학술대회
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    • pp.27-29
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    • 2004
  • Drug transporters play an essential role in the absorption, distribution and elimination of clinical drugs, nutrients and toxicants. The importance of the transporters is exampled by therapeutic failure in cancer chemotherapy that is mainly caused by the overexpression of multidrug resistance (MDR)-related transporters. In addition, the transporters may involve in drug-drug interactions that lead to serious adverse drug responses and some transporters also contribute to inter-individual variation in drug responses. As an effort to understand the mechanism underlying the inter-individual variation of transporters activity, genetic and environmental factors influencing the expression or function of the transporters have extensively explored through last decade. Among them, genetic polymorphism of drug transporter encoding genes has generated much interest since the discovery of functional single nucleotide polymorphisms (SNP) of MDRl gene. Besides drug transporters, xenobiotic receptors also modulate drug disposition by regulating the transcription of drug metabolizing enzymes and drug transporters. Among many xenobiotic receptors, pregnane X receptor (PXR) and constitutive androstane receptor (CAR) are two most well characterized since these receptors show wide substrate specificities and regulate the expression of various enzymes involved in drug disposition. Recently, several functional genetic polymorphisms were reported in PXR coding gene. In the present study, genetic polymorph isms of two drug transporters, MDR1 and BCRP, and two xenobiotic receptors, PXR and CAR, were investigated in Korean population.

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곤충식품 개발 현황 및 전망 (Status and prospect for development of insect foods)

  • 윤은영;황재삼
    • 식품과학과 산업
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    • 제49권4호
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    • pp.31-39
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    • 2016
  • The reasons for selecting insects as future food are high growth and feed conversion rates, reproduce quickly, low environmental footprint, valuable source of nutrients, and source of a various undeveloped functional materials. Since 2014, Tenebrio molitor larva, Protaetia brevitarsis larva, Allomyrina dichotoma larva, and Gryllus bimaculatus were registered as new food in Korea because it has been scientifically proven that they are not harmful to eat and nutritious. Therefore they can be legally produced and sold as food. Accordingly, there are 7 species of edible insects including grasshopper, silkworm pupa, and Baekgangjam in Korea. To improve aversion to edible insects, using their powder, chop, and gravy hidden their morphology, we developed more than 100 different kinds of recipes for general food menu, held several times tasting events to be familiar with edible insect food, and published cookbooks. Moreover, we developed more than 50 kinds of recipes for patients. To eat the insect food more and more people, we have been analyzed various function of insects. If health food based on the results of functional analysis is developed, edible insect's value will be raised. If various insect foods are developed and consumed by people, edible insect market will grow up more than 100 billion won in 2020.

자운영 입모부족시 Sethoxydim 처리가 둑새풀 방제 및 자운영 녹비량 증가에 미치는 영향 (Enhancement of Biomass Production in Chinese Milk Vetch (Astragalus sinicus L.) by Controlling Alopecurus aequalis with Sethoxydim under Poor CMV Seedling Stand)

  • 김상열;오성환;황운하;최경진;박성태;김정일;여운상;강항원
    • 한국작물학회지
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    • 제54권3호
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    • pp.265-269
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    • 2009
  • 자운영답 입모부족시 생초량 증진방법을 구명하고자 실시한 시험결과는 다음과 같다. 1. 3월초에 Sethoxydim 유제로 둑새풀을 일찍 방제시 방제가가 84%로 높았으나 처리시기가 늦을 수록 방제효과는 낮았다. 2. 둑새풀 방제후(처리 76일 후) 자운영 입모수는 처리전과 비슷하였고 가을철 재입모수도 처리전에 비해 $2.2{\sim}2.6$배가 증가 하였으나 무처리는 둑새풀과 경합에 의해 자운영 입모수가 감소하였다. 3. 둑새풀 방제후 자운영 건물중은 자운영 피복도가 20%일때 63%, 50% 피복도일 때 164%가 증가하였고 질소함량으로는 12.3 kg, 16.4 kg/10a으로 표준질소시비량 9 kg/10a 보다 높았다. 4. 둑새풀 방제에 따른 쌀 수량은 기계이앙 및 부분경운 이앙 모두 무방제와 비슷하였다.

기능성 소화불량증 환자의 영양소 섭취 및 식행동 (Nutrient Intake and Dietary Behaviors of Patients with Functional Dyspepsia)

  • 신지원;이금주;박재우
    • 대한영양사협회학술지
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    • 제18권4호
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    • pp.283-296
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    • 2012
  • As a disease that reduces quality of life, functional dyspepsia (FD) is associated with foods that may worsen its symptoms or cause it. The purpose of this study was to examine the nutritional status and dietary behaviors of FD patients. We investigated food intake, food intake frequency, and dietary habits of 45 FD subjects according to the Rome III Diagnosis Criteria. Average age and body mass index (BMI) were 47.7 years and $22.6kg/m^2$ (males: $23.4kg/m^2$, females: $22.1kg/m^2$), respectively. Average energy intake was 77% of Korean Dietary Reference Intake (KDRI), and it was less than that of the Korea National Health and Nutrition Examination Surveys (KNHANES). Other nutrient intake levels were similar to the KNHANES. Energy intake proportion of carbohydrates : protein : fat was 56 : 18 : 26, and the ratio of fat intake was higher than that of the KNHANES. Beans, laver, tomato, and yogurt were consumed very frequently. In the results of meal regularity, dietary behaviors and composition of diet were relatively good. It is likely that the patient controlled their diet by eating cautiously and by reducing alcohol drinking and smoking. Our results indicate that FD patients' nutritional status by consumption of nutrients was at a level of normal healthy people and that dietary habits were better than normal adults. However, their fat intake levels were somewhat higher than normal people. Therefore, further research is required to identify the relationship between dietary intakes and FD.

성인의 연령에 따른 건강기능식품 섭취실태와 정보 요구도 분석 (Intake Pattern and Needs Assessment for the Development of Web-Contents on Health Functional Foods according to Age of Adults)

  • 온정;김정희
    • 대한지역사회영양학회지
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    • 제17권1호
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    • pp.26-37
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    • 2012
  • This study was done to analyze the consumption patterns of health functional food (HFF) as well as to perform needs assessment for the development of web-contents on HFF according to age of adults. The subjects were 238 male and female adults, divided into 4 groups by their age. This study collected all information by self-administrated questionnaires. The awareness on HFF was high in the older adults. The younger adults showed more negative responses to reliability and safety on HFF. The main reason for the consumption of HFF was to supplement nutrients and to prevent diseases. The main types of HFF consumed by adults were nutritional supplementary food, red ginseng products, and glucosamine products. There was higher consumption of nutritional supplementary food in the younger adults and glucosamine products in the older adults. Internet users had low level of satisfaction, with tendency to complain poor contents, reliability, difficulties in searching as problems of the pre-existing HFF websites. As useful methods for provision of information on HFF, most adults wanted general information, articles written by experts and videos. They also wanted to know the safety and side effects of HFF. Requirement of contents composition were various in-depth information, clear indication of citation, fresh updated data while that of display composition was easily-findable, uncomplicated, allowing mutual exchange of communication through bulletin board. These results can be used as basic data that reflect the consumer's needs for developing HFF web-contents according to age of adults.

Characteristics of Gouda cheese supplemented with fruit liquors

  • Choi, Hee Young;Yang, Chul Ju;Choi, Kap Seong;Bae, Inhyu
    • Journal of Animal Science and Technology
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    • 제57권3호
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    • pp.15.1-15.6
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    • 2015
  • This study was conducted in order to evaluate the quality characteristics of Gouda cheeses supplemented with fruit liquor (Prunusmume or Cornus officinalis). Fruit liquor was supplemented to Gouda cheeses during preparation. Changes in chemical composition, lactic acid bacterial population, pH, water-soluble nitrogen, sensory characteristics, and proteolysis were monitored in the prepared ripened cheese. The electrophoresis patterns of cheese proteins, fruit liquor functional component concentrations, and the flavonoid content of the cheeses were also determined. The addition of fruit liquor did not affect (p> 0.05) the appearance or sensory characteristics of the cheeses. Higher amounts of crude ash, mineral, and flavonoids (p< 0.05) were observed in the liquor supplemented cheese than in the control cheese. Findings from this study suggest that wine supplemented Gouda could provide additional nutrients while maintaining flavor and quality.

송이버섯과 양송이 분말을 첨가한 데미글라스 소스의 품질 특성 (Quality Characteristics of Demi-glace Sauce with Pine mushroom and mushroom Powder Added)

  • 최수근
    • 한국조리학회지
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    • 제13권4호
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    • pp.119-127
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    • 2007
  • Pine mushroom is excellent for its unique smell, nutrients and functional factors. The quality characteristics of Demi-glace sauce made from pine mushrooms that have not been used despite their value as good ingredients and mushrooms that have been added to various kinds of sauce were examined by differing pine mushroom and mushroom powder in stock. The more pine mushroom and mushroom powder was added, the content of minerals increased; however, the content of moisture decreased. Overall, viscosity was increased. The content of each mineral varied in proportion to pine mushroom and mushroom powder contents level. Sensory evaluation of pine mushroom added to demi-glace sauce showed difference in sweetness, savory taste overall. 0.2% addition of sweetness, 0.3% addition of savory taste, 0.2% and 0.3% addition of overall acceptability appeared as the best estimation. Specially, 0.2% addition was the highest in salty taste and color. As the two mushroom powder contents was increased, tastes of demi-glace sauce were not increased; rather, the appropriate amount of addition existed.

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The Role of a Neurovascular Signaling Pathway Involving Hypoxia-Inducible Factor and Notch in the Function of the Central Nervous System

  • Kim, Seunghee;Lee, Minjae;Choi, Yoon Kyung
    • Biomolecules & Therapeutics
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    • 제28권1호
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    • pp.45-57
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    • 2020
  • In the neurovascular unit, the neuronal and vascular systems communicate with each other. O2 and nutrients, reaching endothelial cells (ECs) through the blood stream, spread into neighboring cells, such as neural stem cells, and neurons. The proper function of neural circuits in adults requires sufficient O2 and glucose for their metabolic demands through angiogenesis. In a central nervous system (CNS) injury, such as glioma, Parkinson's disease, and Alzheimer's disease, damaged ECs can contribute to tissue hypoxia and to the consequent disruption of neuronal functions and accelerated neurodegeneration. This review discusses the current evidence regarding the contribution of oxygen deprivation to CNS injury, with an emphasis on hypoxia-inducible factor (HIF)-mediated pathways and Notch signaling. Additionally, it focuses on adult neurological functions and angiogenesis, as well as pathological conditions in the CNS. Furthermore, the functional interplay between HIFs and Notch is demonstrated in pathophysiological conditions.

대형 배양장치에서 기능그룹에 기초한 식물플랑크톤 천이 특성 (Characteristics of Phytoplankton Succession Based on the Functional Group in the Enclosed Culture System)

  • 이경락;노성유;이재윤;윤성애;이재학;신유나;이수웅;류덕희;이재관
    • 생태와환경
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    • 제50권4호
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    • pp.441-451
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    • 2017
  • 2016년 8월 19일부터 12월 31일까지 현장원수와 퇴적물이 주입된 현장 배양장치 실험을 통해 환경요인의 영향에 따른 식물플랑크톤 기능그룹(phytoplankton functional group, PFG)의 천이 특성을 연구하였다. 본 연구에서 확인된 식물플랑크톤은 총 27속 50종이었으며, 분류군별로는 녹조류 30종, 규조류 11종, 남조류 7종, 편모조류 2종으로 나타났다. 실험구에서 총 25속 47종(녹조류 30종, 규조류 9종, 남조류 6종, 편모조류 2종), 대조구에서 총 23속 45종(녹조류 26종, 규조류 10종, 남조류 7종, 편모조류 2종)의 식물플랑크톤이 각각 확인되었다. 식물플랑크톤 기능그룹(PFG)은 총 19개(B, C, D, F, G, H1, J, K, Lo, M, MP, N, P, S1, $T_B$, $W_0$, X1, X2, Y)로 확인되었으며, 실험구와 대조구에서는 H1을 제외하고 18개의 PFG가 모두 출현하였다. 생체 부피(biovolume)에 기초했을 때 $W_0$, J 및 M 그룹은 원수만 주입된 대조구와 비교하여 원수와 퇴적물이 주입된 실험구에서 영양염의 내부순환(internal cycling)의 영향으로 더 높은 생체부피를 보이면서 뚜렷한 천이 양상을 나타내었다. PCA 분석 결과에 기초할 때 PFG의 천이 양상은 영양염, 수온 및 조도 등의 주요 환경인자들과의 상관성에 따라 뚜렷한 차이를 나타내었다. 결론적으로 본 연구에서 PFG를 적용하여 주어진 환경조건에서 식물플랑크톤 적응 및 천이(성장) 특성을 확인할 수 있었으며, PFG는 향후 국내 수계의 식물플랑크톤 천이를 이해하기 위한 새로운 방법이 될 수 있을 것으로 생각된다.