• Title/Summary/Keyword: Metabolism.

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Influence of high fat and different types of carbohydrate diet on energy metabolism in growing mice

  • Chung, Nana;Lim, Kiwon
    • Korean Journal of Exercise Nutrition
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    • v.23 no.3
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    • pp.1-12
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    • 2019
  • [Purpose] The purpose of this study was to determine whether different types of carbohydrate diets with or without exercise changes energy metabolism at rest and during exercise. [Methods] To minimize differences in food and energy intake between experimental groups, mice were pairfed. After 1 week of adaptation, 40 male ICR mice (6 weeks old) were randomly divided into four groups: Sta. (high fat + high starch), Scu. (high fat + high sucrose), StaEX. (high fat + high starch + exercise), and SucEX. (high fat + high sucrose + exercise). StaEX. and ScuEX. groups underwent training by running on a treadmill five times a week. After 10 weeks of training, energy metabolism was measured for 24 h and during a 1 h exercise period. [Results] The final body weight showed no significant difference between the groups. However, the weight of abdominal tissues (epididymal, perirenal, and mesenteric adipose tissue) in training groups was markedly decreased following 10 weeks of training. Results of all energy metabolism (24 h at rest and during 1 h of exercise) showed no significant interactions between diet and exercise. A brief summary of the results of the energy metabolism is that the metabolism related indicators over 24 h were more affected by the dietary pattern than the exercise but during the 1 h of exercise, training had more effect on energy metabolism than diet. [Conclusion] Our findings confirm that: (a) the type of carbohydrates included in the diet influence the metabolic responses over 24 h, (b) training had more effect on energy metabolism than diet during 1 h of exercise, (c) both results; abdominal adipose tissue weight and fat oxidation during exercise are suggestive for a beneficial effect of moderate physical activity on weight maintenance.

Development of Biologically Active Compound from Edible Plant Sources -V. -Phytol, ACAT (Acyl-CoA: Cholesterol Acyltransferase) Inhibitory Diterpenoid From the Leaves of Lactuca sativa L.- (식용 식물자원으로부터 활성물질의 탐색-V. -상추(Lactuca sativa L.)의 ACAT 억제 Diterpenoid, Phytol-)

  • Jang, Tae-O;Bang, Myun-Ho;Song, Myoung-Chong;Hong, Yoon-Hee;Kim, Ji-Young;Chung, Dae-Kyun;Pai, Tong-Kun;Kwon, Byung-Mok;Kim, Young-Kuk;Lee, Hyun-Sun;Kim, In-Ho;Baek, Nam-Ln
    • Applied Biological Chemistry
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    • v.46 no.1
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    • pp.66-68
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    • 2003

Effect of Boron Supplementation on Ca and Bone Metabolism in Rats during Growth (성장기 흰쥐에서 붕소의 보충이 체내 칼슘 및 골격 대사에 미치는 영향)

  • 정혜경;이현숙;김종연;김종여
    • Journal of Nutrition and Health
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    • v.31 no.6
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    • pp.1039-1048
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    • 1998
  • It has been reported that boron may be beneficial for optimal calcium metabolism and, thus, optimal bone metabolism. Therefore, we designed a study to determine the effect of boron supplementation on Ca and bone metabolism in rats. The rats of 80-l40g body weight were given a control(0ug), 5$\mu\textrm{g}$, 10$\mu\textrm{g}$, 20$\mu\textrm{g}$, 40$\mu\textrm{g}$, or 80$\mu\textrm{g}$ boron supplement per Is diet for 4-weeks. The results are summarized as follows. There were no differences in total food intake and weight gain among the experimental groups. fecal Ca excretion, urinary Ca excretion, apparent Ca absorption, Ca retention, serum alkaline phosphatase activity, and urinary hydroxyproline were not affected by boron supplementation. There was no difference in serum creatinine. Whereas, urinary creatinine excretion was increased with increasing boron supplementation, and conse-quently creatinine clearance was increased with boron supplementation. No differences were found in length, weight, density, Ca content of femur and scapular. The findings suggest that boron supplementation was not effective in Ca and bone metabolism in growing rats fed normal Ca diet. (Korean J Nutrition 31(6) : 1039-1048, 1998)

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Modification of Carbohydrate Metabolism in Transgenic Potato

  • Heyer, Arnd G.
    • Journal of Plant Biotechnology
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    • v.2 no.1
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    • pp.13-19
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    • 2000
  • Carbohydrates serve three different principal functions in the metabolism of plants. They are the primary products of energy fixation, they are important transport metabolites, and they are deposited as structural or storage compounds. Modification of carbohydrate metabolism therefore covers approaches to modify yield, to change sink/source relationships and thereby alter the ratio of harvestable material, and to improve the quality of crop plants. The scope of this article is to summarize research done at the Max-Planck-Institute related to the first two fields and to present in some detail what we learned, when we established a new carbohydrate storage form in potato.

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An evolving integrative physiology: skeleton and energy metabolism

  • Lee, Na-Kyung
    • BMB Reports
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    • v.43 no.9
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    • pp.579-583
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    • 2010
  • The adipocyte-derived hormone leptin regulates appetite and bone mass. Recent research demonstrates that reciprocally, osteoblasts have a role in controlling energy metabolism. Several genes expressed in osteoblasts are involved in this process, and one of them is the Esp gene. The remaining genes regulate Esp gene expression. OST-PTP, the protein name of Esp, regulates the carboxylation of osteocalcin secreted from osteoblasts, thus affecting insulin sensitivity and insulin secretion. This review provides evidence for a novel interpretation of the connection between bone and energy metabolism and expands our understanding of the novel physiology of bone beyond its classical functions.

A Case Study of hepatitis on drug metabolism Impoved with Chungsimyeunjatang (약물성 간염을 주소로 하는 태음인(太陰人) 환자(患者)의 청심연자탕(淸心蓮子湯) 치험 1례)

  • Kim, Jae-Gwan;Moon, Byung-Ha
    • Journal of Sasang Constitution and Immune Medicine
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    • v.15 no.1
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    • pp.129-132
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    • 2003
  • This case was designed to evaluate the improving effect of hepatitis on drug metabolism. Gleditsiae Spina(?甬刺) was included Taeumin' herb. but it maybe induced hepatitis on drug metabolism, if Taeumin take this herb long time. We use Taeyeumin Chungsimyeunjatang to the hepatitis on drug metabolism, and we improved it. so we report it.

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Rice Iron Metabolism: from Source to Solution

  • Santos, Livia Scheunemann dos;Oliveira, Antonio Costa de
    • Journal of Crop Science and Biotechnology
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    • v.10 no.2
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    • pp.64-72
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    • 2007
  • Iron is an important micronutrient for plants. Iron metabolism is a complex mechanism under a delicate balance. Iron metabolism represents two major problems for plants: deficiency as a consequence of solubility problems and toxicity due to excess solubility in anaerobic conditions. In the last few years, new genes have been discovered that influence iron uptake, transport and storage. Irrigated rice is exposed to high levels of $Fe^{II}$, normally rare in aerobic soil conditions. The implications of altering iron uptake rates and the effects of newly discovered genes are discussed.

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Ginsenoside Rb1 exerts neuroprotective effects through regulation of Lactobacillus helveticus abundance and GABAA receptor expression

  • Chen, Huimin;Shen, Jiajia;Li, Haofeng;Zheng, Xiao;Kang, Dian;Xu, Yangfan;Chen, Chong;Guo, Huimin;Xie, Lin;Wang, Guangji;Liang, Yan
    • Journal of Ginseng Research
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    • v.44 no.1
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    • pp.86-95
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    • 2020
  • Background: Ginsenoside Rb1 (Rb1), one of the most abundant protopanaxadiol-type ginsenosides, exerts excellent neuroprotective effects even though it has low intracephalic exposure. Purpose: The present study aimed to elucidate the apparent contradiction between the pharmacokinetics and pharmacodynamics of Rb1 by studying the mechanisms underlying neuroprotective effects of Rb1 based on regulation of microflora. Methods: A pseudo germ-free (PGF) rat model was established, and neuroprotective effects of Rb1 were compared between conventional and PGF rats. The relative abundances of common probiotics were quantified to reveal the authentic probiotics that dominate in the neuroprotection of Rb1. The expressions of the gamma-aminobutyric acid (GABA) receptors, including GABAA receptors (α2, β2, and γ2) and GABAB receptors (1b and 2), in the normal, ischemia/reperfusion (I/R), and I/R+Rb1 rat hippocampus and striatum were assessed to reveal the neuroprotective mechanism of Rb1. Results: The results showed that microbiota plays a key role in neuroprotection of Rb1. The relative abundance of Lactobacillus helveticus (Lac.H) increased 15.26 fold after pretreatment with Rb1. I/R surgery induced effects on infarct size, neurological deficit score, and proinflammatory cytokines (IL-1β, IL-6, and TNF-α) were prevented by colonizing the rat gastrointestinal tract with Lac.H (1 × 109 CFU) by gavage 15 d before I/R surgery. Both Rb1 and Lac.H upregulated expression of GABA receptors in I/R rats. Coadministration of a GABAA receptor antagonist significantly attenuated neuroprotective effects of Rb1 and Lac.H. Conclusion: In sum, Rb1 exerts neuroprotective effects by regulating Lac.H and GABA receptors rather than through direct distribution to the target sites.