• Title/Summary/Keyword: UCP

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Effects of Dietary Levan on Adiposity, Serum Leptin and UCP Expression in Obese Rats Fed High Fat Diet (고지방 식이로 유도된 비만쥐에서 식이 레반이 체지방 형성 및 혈청 렙틴과 UCP 발현에 미치는 영향)

  • 강순아;홍경희;김소혜;장기효;김철호;조여원
    • Journal of Nutrition and Health
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    • v.35 no.9
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    • pp.903-911
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    • 2002
  • The effects of dietary levan, high-molecular-weight $\beta$-2,6-linked fructose polymer, on adiposity, serum leptin and UCP expression in rats fed high fat diet were studied. The adipose tissue hormone, leptin has been proposed to be involved in the regulation of food intake and energy expenditure. Uncoupling protein (UCP), a mitochondrial protein that uncouples the respiratory chain from oxidative phosphorylation, generates heat instead of ATP, thereby increase energy expenditure. To determine whether the dietary levan may have the anti-obesity effect, 4 wk old Sprague Dawley male rats fed high fat diet for 6 wks to induce obesity, and subsequently fed one of three diets for further 6 wks: 1) high fat (40% of calories) diet without levan 2) with 3% (w/w) levan 3) with 5% levan. For the comparison, control group fed AIN-76A diet. Visceral and peritoneal fat masses were lower in high fat diet with levan groups compared to high fat diet group. The effect of levan was dose-dependent. Adipocyte size was significantly reduced in the levan diet groups compared to the no levan diet group. Serum cholesterol level was not affected by levan containing diet, while the serum HDL cholesterol level was higher in leven diet groups. In addition, serum triglyceride level was markedly reduced by levan containing diet, thus lower than that of control group. Serum leptin was reduced by levan containing diet and lower in 5% levan group compared to 3% levan group (p < 0.001), as a result, serum leptin and insulin levels of 5% levan group were reduced to level of control group. Futhermore, the serum leptin level reflected the adiposity. The expression of UCP 1, and UCP 2 in brown adipose tissue was up-regulated by levan containing diet. In conclusions, levan containing diet reduced adiposity and serum triglyceride but increased UCP expression in the obese rats fed high fat diet. (Korean J Nutrition 35(9) : 903~911, 2002)

A Comparison of International Standby Practices(98) with Uniform Customs for Practices for Documentary Credits (스탠드바이 신용장통일규칙(信用狀統一規則)(ISP98)과 화환신용장통일규칙(貨換信用狀統一規則)(UCP500)과의 비교연구(比較硏究))

  • Kim, Young-Hoon
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.13
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    • pp.657-677
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    • 2000
  • Since January 1, 1999, traders, bankers and their counsels worldwide have available for their use the first set of rules exclusively dealing with standby letters of credit:the International Standby Practices(ISP98). Numerous standbys have alreadby been issued in the United States and worldwide subject to the new ISP. The international banking community is anticipating an increasing demand from their customers to issue ISP-governed undertakings. Before the adoption of ISP, traders and bankers had only the choice of issuing their standby subject to the International Chamber of Commerce's(ICC) Uniform Customs and Practices for Documentary Credits(UCP) and, to a much lesser extent, to the ICC's Uniform Rules for Demand Guarantees(URDG). However, practice showed that UCP rules are not easily adapted to regulate transnational standbys. Indeed, UCP was conceived to govern documentary credits, which are intended to serve as a means of payment. By contrast, standbys are means of guaranty. The core of UCP cannot therefore be appropriate for standby practices and, as a consequence, a number of UCP's provisions have to be excluded in the standby's text. UCP's shortcomings indicated above fulfil the requirements of a key factor for the success of uniform rules. Indeed, to achieve success in the sense of meeting the market's acceptance, any such rules should fill a widely recognized need expressed by merchant community to which such rules are addressed. The ISP cleary has such a vocation. Nonetheless, the already largely encumbered regulatory environment of guarantee devices can hardly go unnoticed. The question therefore arises as to the proper place of ISP in such a context.

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The Anti-obesity Effects of Gambi-hwan Extract on Obese Rats Induced by High-fat Diet through the Expression of UCP-1 and PPAR-${\delta}$

  • Lee, Beom-Joon;Ryu, Jae-Hwan;Kim, Jae-Wan;Park, Jong-Hun;Park, Jae-Woo
    • The Journal of Korean Medicine
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    • v.28 no.4
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    • pp.136-147
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    • 2007
  • Objective : Recently there are a lot of attempts to treat obesity through energy expenditure. Especially UCP-1 and PPAR-${\delta}$ is known to play a key role for energy dissipation through the increasing thermogenesis. Gambi-hwan extract is a traditional medicine made of herbs containing the polyunsaturate fatty acids related to the energy expenditure. It is expected to reduce the weight by means of the expression of UCP-1 and PPAR-${\delta}$. Meterial and Method : We divided 21 rats into 3 groups and assigned 8 rats respectively. The normal group was administered normal diet, the control group was administered high-fat diet, and the G50 group was administered high-fat diet with Gambi-hwan extracts50 mg/kg. And then the weights of body, food intake, the changes of lipids in blood stream, and the expressions of UCP-1 and PPAR-${\delta}$ on adipose tissues were measured respectively. Result : The reduction of body weight and the increasing tendency of expression of UCP-1 and PPAR-${\delta}$ mRNA were shown in G50 group. In the G50 group the Triglyceride level is decreased and the HDL-cholesterol level and the expression of PPAR-${\delta}$ and UCP-1 protein on Visceral adipose tissue were significantly increased. Conclusion : This result indicates that Gambi-hwan Extract upregulate the expression of UCP-1 and PPAR-${\delta}$ in adipose tissue, which may contribute to reducing the weight of adipose tissue.

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Nrf2 induces Ucp1 expression in adipocytes in response to β3-AR stimulation and enhances oxygen consumption in high-fat diet-fed obese mice

  • Chang, Seo-Hyuk;Jang, Jaeyool;Oh, Seungjun;Yoon, Jung-Hoon;Jo, Dong-Gyu;Yun, Ui Jeong;Park, Kye Won
    • BMB Reports
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    • v.54 no.8
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    • pp.419-424
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    • 2021
  • Cold-induced norepinephrine activates β3-adrenergic receptors (β3-AR) to stimulate the kinase cascade and cAMP-response element-binding protein, leading to the induction of thermogenic gene expression including uncoupling protein 1 (Ucp1). Here, we showed that stimulation of the β3-AR by its agonists isoproterenol and CL316,243 in adipocytes increased the expression of Ucp1 and Heme Oxygenase 1 (Hmox1), the principal Nrf2 target gene, suggesting the functional interaction of Nrf2 with β3-AR signaling. The activation of Nrf2 by tert-butylhydroquinone and reactive oxygen species (ROS) production by glucose oxidase induced both Ucp1 and Hmox1 expression. The increased expression of Ucp1 and Hmox1 was significantly reduced in the presence of a Nrf2 chemical inhibitor or in Nrf2-deleted (knockout) adipocytes. Furthermore, Nrf2 directly activated the Ucp1 promoter, and this required DNA regions located at -3.7 and -2.0 kb of the transcription start site. The CL316,243-induced Ucp1 expression in adipocytes and oxygen consumption in obese mice were partly compromised in the absence of Nrf2 expression. These data provide additional insight into the role of Nrf2 in β3-AR-mediated Ucp1 expression and energy expenditure, further highlighting the utility of Nrf2-mediated thermogenic stimulation as a therapeutic approach to diet-induced obesity.

Ukgan-san plus Citri Pericarpium and Pinelliae Rhizoma Protects Hepatocytes from Arachidonic Acid and Iron-mediated Oxidative Stress (아라키돈산과 철 유도성 산화적 스트레스에 대한 억간산가진피반하(抑肝散加陳皮半夏)의 간세포 보호 효능)

  • Ye Lim Kim;Hyo Jeong Jin;Sang Mi Park;Kyung Hwan Jegal;Chang Hyun Song;Kyung Soon Kim;Sung Hui Byun;Sang Chan Kim
    • Herbal Formula Science
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    • v.31 no.4
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    • pp.265-281
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    • 2023
  • Objectives : Ukgan-san plus Citri Pericarpium and Pinelliae Rhizoma (UCP) is used as a traditional herbal formula in Korea and Japan for treatment of fever, fever-induced convulsions, and liver dysfunction and so on. In this study, we investigated the cytoprotective effect and underlying mechanism of UCP against oxidative stress induced by cotreatment of arachidonic acid (AA) and iron. Methods : To evaluate the hepatoprotective effects of UCP against AA + iron-induced oxidative stress in HepG2 cell, cell viability and changes on apoptosis-related proteins were assessed by MTT and immunoblot analyses. The changes in intracellular reactive oxygen species (ROS), glutathione (GSH), and mitochondrial membrane permeability (MMP) were investigated against to the oxidative stress. Furthermore, to verify underlying molecular mechanism, NF-E2-related factor 2 (Nrf2) and its downstream target genes were examined by immunoblot analysis. Results : Treatment of UCP increased the cell viability and altered the expression levels of apoptosis-related proteins such as PARP, caspase-9, caspase-3, Bcl-2. UCP also inhibited the GSH depletion, excessive ROS production and mitochondrial dysfunction induced by AA + iron. In addition, the Nrf2 and the Nrf2 target genes activation were increased by UCP. Conclusions : These results indicated that UCP has the ability to protect against oxidative stress-induced hepatocyte damage, which may be mediated with Nrf2 pathway.

A Study on the Transfer of Letter of Credit in the UCP600 - Focusing on Comparing with Transfer of drawing rights in the ISP98 - (신용장통일규칙(UCP600)상 양도에 관한 연구 - 보증신용장통일규칙(ISP98)과의 비교를 중심으로 -)

  • Park, Se-Hoon;Choi, Young-Joo
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.53
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    • pp.75-97
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    • 2012
  • This study primarily concerns the transfer of letter of credit. A transferable credit is a credit that clearly specifies it is 'transferable' and may be made available in whole or in part to second beneficiary by the request of the first beneficiary. the transfer of the credit is available where the seller as a middleman in intermediate trades purchases from domestic and international supplier. The purpose of this study is to examine the transfer of letter of credit in the UCP600. Having recognized the differences, the study analyzes the transfer of letter of credit under the UCP600 in comparison to those under the ISP98. The ISP98, like the UCP600, stipulates for the requirement of transfer, the number of transfer, conditions of transfer, the replacement of the name of first beneficiary.

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Review on the Updated ISBP 2007 (2007 국제표준은행관행에 반영된 업데이트 내용의 검토)

  • Kang, Won-Jin
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.38
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    • pp.97-121
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    • 2008
  • The updated International Standard Banking Practice(ISBP), International Chamber of Commerce Publication No. 681, was published to bring its contents in line with UCP 600. The ISBP 681 has dealt with 185 paragraphs from paragraphs 200 of ISBP 645 that are commonly arising in the credit transactions and also explains in detail some of the articles of UCP 600 with the proper interpretation. The updated version ISBP 681 involved aligning it with UCP 600, making certain technical adjustments in expression of words such as "in conflict" instead of "inconsistent", etc. Also descriptions of goods in commercial invoice to be altered the words into "services or performance" in addition to "goods". Despite the updated ISBP 681, there remains a question. Where the words "from" or "after" are used in regard to something other than a period of shipment or the maturity date of drafts, there is no guidance from the UCP as to its meaning. The party concerned in credit transactions is also required to have a full understanding of the paragraphs of ISBP 681 and the articles of UCP 600 in order to acquire the documents preparation and examination facilitating the parties to minimize discrepancies.

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A Study on the Liabilities of Wrongful Dishonor of the Issuing Bank in UCC (미국 UCC상 신용장 발행은행의 부당한 지급불이행의 책임에 관한 연구)

  • Bae, Jung-Han
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.22
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    • pp.71-106
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    • 2004
  • Todays, L/C transactions in international trade are governed by UCP 500 and eUCP. But UCP 500 and eUCP do not cover all legal problem of L/C transactions. Therefore choice of laws in international L/C transactions are occurred. U.S.A. has an enacted law (UCC ${\S}5-Letter$ of Credit) to govern L/C transaction. But other countries has no special enacted law to govern L/C transaction. The reason is that there are difference between legal attitude of U.S.A. and other countries. American law considers L/C as a special device made by merchants. Therefore U.S.A. applies UCC ${\S}5-Letter$ of Credit instead of general contract law. UCC ${\S}5-Letter$ of Credit includes provisions of warranties, remedies, and so on that UCP 500 and eUCP do not include. But the liabilities of the Issuing Bank on the wrongful dishonor in L/C transaction is very important legal problem. First, this study is to justify concepts of honor and dishonor, and sufficient conditions for dishonor of the issuing bank. in UCC. Second, this study is to examine closely the liabilities of the Issuing Bank on the wrongful dishonor in L/C transaction. Third, this study is suggest distinctive features on the Liabilities to wrongful dishonor of the issuing bank in UCC ${\S}5-Letter$ of Credit and our trader's matters to be attended to L/C transactions governed by UCC.

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Liver PPAR${\alpha}$ and UCP2 are Involved in the Regulation of Ovariectomy-Induced Adiposity and Steatosis by Swim Training

  • Jeong, Sun-Hyo;Yoon, Mi-Chung
    • Biomedical Science Letters
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    • v.16 no.4
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    • pp.239-246
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    • 2010
  • It is suggested that ovariectomy induces body weight gain primarily in the form of adipose tissue in rodents. Since liver peroxisome proliferator-activated receptor ${\alpha}$ (PPAR${\alpha}$) and uncoupling 2 (UCP2) are involved in the regulation of energy expenditure, it was investigated whether swim training regulates ovariectomy-induced adiposity and steatosis through liver PPAR${\alpha}$ and UCP2 activation in female ovariectomized mice, an animal model of postmenopausal women. Swim-trained mice had significantly decreased adipose tissue weights compared with sedentary control mice. Histological analysis showed that hepatic lipid accumulation was inhibited by swim training. Concomitantly, swim training significantly increased mRNA levels of PPAR${\alpha}$ and its target genes responsible for peroxisomal fatty acid ${\beta}$-oxidation, such as acyl-CoA oxidase, enoyl-CoA hydratase/3-hydroxyacyl-CoA dehydrogenase and thiolase in the liver. Moreover, swim training induced the mRNA expression of UCP2. These results suggest that swim training can effectively prevent adiposity and steatosis caused by ovariectomy, in part through activation of liver PPAR${\alpha}$ and UCP2 in female obese mice.

The Key-points of the Revised ISBP 745 and Some Considerations for its Practical Application (개정 국제표준은행관습(ISBP 745)의 주요특징과 실무적용상 유의점)

  • Seo, Jung Doo
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.64
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    • pp.131-154
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    • 2014
  • The International Standard Banking Practice for the Examination of Documents under UCP 600 (ISBP 745) is the product by the Drafting Group of the ICC Banking Commission during a number of years. ISBP 745 is a practical complement to UCP 600, ICC's universally used rules on documentary credits. ISBP 745 does not amend UCP 600. Two rules should be read in their entirety and not in isolation. ISBP 745 explains, in explicit detail, how the UCP 600 rules are to be applied on a day-to-day basis. It fills a needed gap between the general principles announced in UCP 600 and the daily work of the documentary credit practitioners. It has developed into an invaluable aid to banks, corporates, logistics and insurance companies alike, on a global basis. By using ISBP 745, document checkers can bring their practices in line with those followed by their colleagues worldwide. The result should be a significant reduction in the number of shipping documents refused for discrepancies on first presentation. This study aims to summarize the reasons for revision of the ISBP rules and the key-points of ISBP 745, and to provide the documentary credit practitioners with some considerations under its practical application.

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