• Title/Summary/Keyword: active compound

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Studies on the Screening of Bioactive Compound Acting on Intracellular Enzymes from Natural Products and Its Mode of Action : Inhibitory Component of Puerariae Radix on Alcohol Dehydrogenase Activity (천연물로부터의 세포내 효소 활성 조절물질의 탐색 및 기능 연구: 갈근의 알코을 탈수소효소 저해 활성 성분)

  • 이현주;오민아;최영희;이강만
    • YAKHAK HOEJI
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    • v.45 no.5
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    • pp.500-505
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    • 2001
  • Puerariae Radix is one of the medicinal plants used in oriental medicine for hangover, It has been claimed for several pharmacological effects including anti-alcohol abuse, antidipsotropic activity and anti-alcohol intoxication. In connection with Puerariae Radix effects, an activity-guided purification of active substance on alcohol dehydrogenase (hnH) was carried-out. The most active compound was isolated as puerarin (C$_{21}$H$_{20}$ O$_{9}$ ), molecular weight 416. Puerarin inhibited ADH noncompetitively against ethanol or NAD$^{+}$./.

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Effect of scutellariae radix pharmacopuncture on the type 1 hypersensitivity (황금약침(黃芩藥鍼)이 Type 1 Hypersensitivity에 미치는 영향)

  • Kim, Yu-Seung;Song, Choon-Ho
    • Korean Journal of Acupuncture
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    • v.23 no.3
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    • pp.111-122
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    • 2006
  • Objectives : We studied the effects of Scutellariae Radix pharmacopuncture solution (SRHAS) on the type 1 hypersensitivity. Methods : In vivo, we measured compound 48/80-induced active systemic anaphylactic shock using ICR mice and anti-DNP IgE-induced passive cutaneous anaphylaxis (PCA) using Sprague Dawley rats. In vitro, we showed effects on cytotoxicity and ${\beta}-hexosaminidase$ release from RBL-2H3 cells. Results : In vivo, SRHAS pretreatments (100% or 50%) at BL13 inhibited active systemic anaphylactic shock induced by compound 48/80. PCA was only inhibited by pretreatments of SRHAS at optional points. In vitro, $0.1{\sim}2%$ SRHAS treatments did not affect cell viability while ${\beta}$-hexosaminidase release was significantly inhibited. Conclusions : These results suggest that SRHAS may be beneficial in the inhibition of type I hypersensitive inflammatory response.

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Study on the Antitumor Activity of Tripterygium Regelii Sprague (미역줄나무의 항암활성에 관한 연구)

  • Park, Wan-Su
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.19 no.2
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    • pp.441-445
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    • 2005
  • Tripterygium regelii has been used as an oriental medicine, especially antiparasitic, anti-inflammatory and detoxifying agents in East asia. During our research to develop new antitumor agents from natural products, MeOH ext. and CH2Cl2 ext. of Tripterygium regelii showed the potent antitumor activity. In order to purify active compounds from Tripterygium regelii, activity-guided fractionation was carried out. Silica gel and RP-18 column chromatography for the active fraction led to the isolation of two compounds and their antitumor activities were studied. Those two compounds didn't show potent antitumor activity against human tumor cell lines. The structure of two compounds were determined by $^1H-NMR$, $^{13}C-NMR$, DEPT, $^1H-^{13}C$ COSY and IR spectrum. Compound I and Compound II were turned out to be Celastrol, and ${\beta}-sitosteryl-3-o-{\beta}-D-glucopyranoside$ respectively.

A network pharmacology approach to explore the potential role of Panax ginseng on exercise performance

  • Kim, Jisu;Lee, Kang Pa;Kim, Myoung-Ryu;Kim, Bom Sahn;Moon, Byung Seok;Shin, Chul Ho;Baek, Suji;Hong, Bok Sil
    • Korean Journal of Exercise Nutrition
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    • v.25 no.3
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    • pp.28-35
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    • 2021
  • [Purpose] As Panax ginseng C. A. Meyer (ginseng) exhibits various physiological activities and is associated with exercise, we investigated the potential active components of ginseng and related target genes through network pharmacological analysis. Additionally, we analyzed the association between ginseng-related genes, such as the G-protein-coupled receptors (GPCRs), and improved exercise capacity. [Methods] Active compounds in ginseng and the related target genes were searched in the Traditional Chinese Medicine Database and Analysis Platform (TCMSP). Gene ontology functional analysis was performed to identify biological processes related to the collected genes, and a compound-target network was visualized using Cytoscape 3.7.2. [Results] A total of 21 ginseng active compounds were detected, and 110 targets regulated by 17 active substances were identified. We found that the active compound protein was involved in the biological process of adrenergic receptor activity in 80%, G-protein-coupled neurotransmitter in 10%, and leucocyte adhesion to arteries in 10%. Additionally, the biological response centered on adrenergic receptor activity showed a close relationship with G protein through the beta-1 adrenergic receptor gene reactivity. [Conclusion] According to bioavailability analysis, ginseng comprises 21 active compounds. Furthermore, we investigated the ginseng-stimulated gene activation using ontology analysis. GPCR, a gene upregulated by ginseng, is positively correlated to exercise. Therefore, if a study on this factor is conducted, it will provide useful basic data for improving exercise performance and health.

Compound K Activates Hyaluronan Synthase 2 in transformed human Keratinocytes and Fibroblasts and Increases hyaluronan in hairless mouse skin

  • Kim, Su-Jong;Kang, Byung-Yang;Cho, Si-Yang;Sung, Dae-Suk;Shin, Eiu-Suk;Chang, Hui-Kyung;Yeom, Myung-Hun;Woo, Kwang-Sik;Kim, Duk-Hee;Sim, Young-Chul;Lee, Yong-Sung
    • Proceedings of the SCSK Conference
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    • 2003.09a
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    • pp.741-762
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    • 2003
  • Ginsenosides, the major active ingredients of ginseng, show a variety of biomedical efficacies such as anti-aging, anti oxidation and anti-inflammatory activities. To understand the effects of compound K (20-O-D-glucopyranosyl-20 (S)-protopanaxadiol), one of the major metabolite of ginsenosides on the skin, we assessed the expression level of ∼ 100 transcripts in compound K-treated HaCaT cells using cDNA microarray analysis. Compound K treatment induced differential expression of 21 genes, which have been reported to be involved in the organization of ECM structure as well as defense responses in human skin cells. One of the most interesting findings is 2-fold increase in hyaluronan synthase2 (HAS2) gene expression by compound K. We found that change in expression of HAS2 gene represents a specific response of HaCaT cells to compound K because hyaluronan synthase 1, 3 was not changed by treatment with compound K. We also demonstrated that the compound K effectively induced hyaluronan synthesis in human skin cells and hairless mouse skin. The human clinical study indicates that topical application of compound K-containing oil-in-water emulsion showed improvement of xerosis, wrinkle and fine lines in the aged skin. We concluded that compound K has anti-aging effects by the induction of HAS2 gene expression and following hyaluronan synthase.

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Antitumoral Compound, MCS-202, an Effector on Proliferation and Morphology of Human Breast Tumor Cell Line, MCF-7 (인체유암세포주 MCF-7의 형태변화와 증식에 영향을 주는 항암활성물질, MCS-202)

  • 이성우;김세은;김항섭;김환묵;이정준;김영호
    • Microbiology and Biotechnology Letters
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    • v.21 no.6
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    • pp.594-599
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    • 1993
  • In the course of screening for microbial metabolites employing human cancer cell line, we identified a mycelial extract of Streptomyces sp. 1365, which are effective on growth inhibition and morphological change of MCF-7, human breasr cancer cell line. By repeased column chromatography and recrystallization process, yellow needle crystals were obtained as an active compound and identified as resistomycin by spectral analysis.

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Studies on the Synthesis and Central Nervous Depressant Activities of Piperine Derivatives(IV) -Piperine Derivatives with Substituents in Piperidine Residue- (피페린유도체의 합성 및 중추 억제작용에 관한 연구(IV) -피페리딘에 치환기를 도입한 피페린유도체-)

  • 심영기;임중기;이은방;우원식
    • YAKHAK HOEJI
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    • v.29 no.5
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    • pp.253-259
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    • 1985
  • In order to search a more active and safer compound, piperine derivatives with substituents in piperidine residue were synthesized and evaluated on CNS depressant activity. N-Piperoyl-2-methylpiperidine (I) and N-piperoyl-3-methylpiperidine (II) were potent in strychnine-induced convulsion. Compound I and N-piperoyl-3-hydroxypiperidine (IX) exhibited a potent inhibitory effect againt pentetrazoleinduced convulsion and a significant prolongation effect of hexobarbital-induced sleeping time. The hydroxy derivatives were more toxic than the methyl derivatives.

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Identification of Aroma-Active Components in Salt-Fermented Big-Eyed Herring on the Market (시판 밴댕이젓의 Aroma-Active 성분의 구명)

  • Cha, Yong-Jun;Kim, Hun;Jang, Sung-Min;Yoo, Young-Jae
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.27 no.6
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    • pp.1053-1058
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    • 1998
  • Volatile flavor compounds in salt fermented big eyed herring were analyzed by vacuum simultaneous distillation solvent extraction/gas chromatography/mass spectrometry/olfactometry and aroma extract dilution anlaysis. A total of 44 volatile compounds were detected by GC/O analysis. Of these, 23 were positively identified, and composed of aldehydes(7), esters(5), ketones(4), sulfur containing compounds (3), aromatic hydrocarbons(2), alcohol(1) and nitrogen containing compound(1). Predominant odorants (Log3FD$\geq$5) in sample were ethyl butanoate(bubble gum /sweet candy-like), 3 methylbutyl butanoate (almond /nutty), 1 octen 3 one(earthy/mushroom like), (E,E) 2,6 nonadienal(roasted wheat/grainy), dimethyl trisulfide(soy sauce /cooked cabbage like), 2 acetylpyrazine(nutty/baked potato like) and unidentified compound(RI=1867, seaweed like).

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