• Title/Summary/Keyword: Lipid Metabolism

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Pheophorbide A-methyl Ester, Acyl-CoA: Cholesterol Acyltransferase Inhibitor from Diospyros kaki

  • Rho, Mun-Chual;Chung, Mi-Yeon;Song, Hye-Young;Kwon, Oh-Eok;Lee, Seung-Woong;Baek, Jin-Ah;Jeune, Kyung-Hee;Kim, Koan-Hoi;Lee, Hyun-Sun;Kim, Young-Kook
    • Archives of Pharmacal Research
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    • v.26 no.9
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    • pp.716-718
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    • 2003
  • In the course of our search for Acyl-CoA: cholesterol acyltransferase (ACAT) inhibitors from natural sources, a new type of ACAT inhibitor was isolated from a methanol extract of Diospyros kaki. On the basis of spectral and structural evidence, the compound was identified as pheophorbide A-methyl ester. Pheophorbide A-methyl ester inhibited ACAT activity in a dose dependent manner with an $IC_{50}$ value of 1.85 $\mu$ g/mL.

Anti-atherosclerotic Effects of Ethanol Extract of Soy Leaves (Glycine max) Supplementation on Suppression of Atherogenic Lesion Formation in LDL Receptor-Deficient Mice (저밀도지단백질 수용체 결손 마우스에서 동맥병변 형성을 억제하는 콩잎 주정추출물의 항동맥경화 효과)

  • Han, Jong-Min;Han, Jang-Il;Baek, Seung-Hwa;Li, Hua;Park, Ji-Seon;Cho, Moon-Hee;Park, Ki-Hun;Lee, Woo-Song;Jeong, Tae-Sook
    • 한국약용작물학회:학술대회논문집
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    • 2008.11a
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    • pp.388-389
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    • 2008
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Ginsenosides Rg1 regulate lipid metabolism and temperature adaptation in Caenorhabditis elegans

  • Hao Shi ;Jiamin Zhao ;Yiwen Li ;Junjie Li ;Yunjia Li;Jia Zhang ;Zhantu Qiu ;Chaofeng Wu ;Mengchen Qin ;Chang Liu ;Zhiyun Zeng ;Chao Zhang ;Lei Gao
    • Journal of Ginseng Research
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    • v.47 no.4
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    • pp.524-533
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    • 2023
  • Background: Obesity is a risk factor for aging and many diseases, and the disorder of lipid metabolism makes it prominent. This study aims to investigate the effect of ginsenoside Rg1 on aging, lipid metabolism and stress resistance Methods: Rg1 was administered to Caenorhabditis elegans (C. elegans) cultured in NGM or GNGM. The lifespan, locomotory activity, lipid accumulation, cold and heat stress resistance and related mRNA expression of the worms were examined. Gene knockout mutants were used to clarify the effect on lipid metabolism of Rg1. GFP-binding mutants were used to observe the changes in protein expression Results: We reported that Rg1 reduced lipid accumulation and improved stress resistance in C. elegans. Rg1 significantly reduced the expression of fatty acid synthesis-related genes and lipid metabolism-related genes in C. elegans. However, Rg1 did not affect the fat storage in fat-5/fat-6 double mutant or nhr-49 mutant. Combined with network pharmacology, we clarified the possible pathways and targets of Rg1 in lipid metabolism. In addition, Rg1-treated C. elegans showed a higher expression of anti-oxidative genes and heat shock proteins, which might contribute to stress resistance Conclusion: Rg1 reduced fat accumulation by regulating lipid metabolism via nhr-49 and enhanced stress resistance by its antioxidant effect in C. elegans.

Effects of Chitosan Treated with Enzymatic Methods on Glucose and Lipid Metabolism in Rats (키토산의 효소분해물질이 흰쥐의 당 및 지방대사에 미치는 영향)

  • 이종미;조우균;박혜진
    • Journal of Nutrition and Health
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    • v.31 no.7
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    • pp.1112-1120
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    • 1998
  • This study was conducted to investigate the effets of chitosan and beef tallow at different level on glucose and lipid metabolism in rats. Dietary fot level was 20% and 40%, and chitosan was given at levels of 0%, 3%, and 5%(wt/wt) of diet. Chitosan supplement tended to decrease the serum total lipids, total cholesterol, and triglycerides. HDL cholesterol and HDL cholesterol : total cholesterol ratio tended to increase with 5% chitosan supplementation. LDL cholesterol and VLDL triglyceride tended to decrease with chitosan supplementation. Lipid concentration of liver and epididymal fat pad(EEP) tended to decrease with medium dietary fat and chitosan treatment. fecal excretion of total lipid and triglyceride exhibited a tendency to increase with high fat levels and chitosan. Length of small intestine and gastrointestinal transit time were not affected by dietary fit levels or chitosan supplements. Therefore, it could be suggested that chitosan supplement had beneficial effects on lipid metabolism. (Korean J Nutrition 31(7) : 1112-1120, 1998)

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Investigation of Effective Korean Herbal Medicine for Psoriasis - Focusing on Lipid Metabolism - (건선에 효과적인 한약 처방 탐색 - 지질 대사를 중심으로)

  • Han, Chang-Yi;Kim, Jundong;Seo, Gwang-Yeel;Kim, Kyu-Seok;Kim, Yoon-Bum
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.34 no.3
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    • pp.70-79
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    • 2021
  • Objectives : The purpose of this study is to investigate the possibility of using herbal medicine for the management of psoriasis focusing on lipid metabolism. Methods : We reviewed studies about pathophysiology, and medical treatment of psoriasis, the relationship between psoriasis and metabolic syndrome and lipid metabolism, and herbal medicine on Pubmed and Google scholar. Results : Psoriasis is a chronic multi-organ inflammatory disease not limited to skin, and steroids, immuno-suppressants, and biological agents are used. It is known that psoriasis and metabolic syndrome act as mutual risk factors, and lipid metabolism are involved in psoriasis. The effects of various single herbal preparations and complex herbal extract, decoction on improving lipid metabolism have been consistently reported, and there was an improvement of psoriatic skin lesions and improvement of blood lipid levels through herbal medicine. Conclusions : Herbal medicine research in psoriasis has focused on the anti-inflammatory effect and the suppression effect of certain immune mediators. However, considering that psoriasis is affected by lipid metabolism and side effects of Western medicines, the use of herbal medicines for the purpose of controlling lipid metabolism in psoriasis is useful in aspects of reducing side effects of concurrent Western medicine, improving the severity of psoriasis, and managing metabolic risk factors.