• 제목/요약/키워드: phenylpropanoids

검색결과 59건 처리시간 0.023초

대극과 식물로부터 분리한 천연폴리페놀의 멜라닌 생성 억제효과 (Inhibitory Effect of Some Natural Polyphenols Isolated from Euphorbiaceae Plants on Melanogenesis)

  • 김정아;최지영;손애량;박성희;허광화;이종구;오인석;김진준;장현욱;정시련;장태수;이승호
    • 생약학회지
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    • 제35권2호통권137호
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    • pp.157-163
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    • 2004
  • Twenty two polyphenols containing ten gallotannins, seven ellagitannins, two phenylpropanoids and three stilbenes isolated from the higher plants were tested inhibitory effects on melanogenesis in cultured B-16 mouse melanoma cell lines. Among the tested samples, 1-desgalloyleugeniin exhibited the most potent inhibitory effect on melanogenesis in cultured cell lines.

Inhibition of Proinflammatory Cytokine Generation in Lung Inflammation by the Leaves of Perilla frutescens and Its Constituents

  • Lim, Hun Jai;Woo, Kyeong Wan;Lee, Kang Ro;Lee, Sang Kook;Kim, Hyun Pyo
    • Biomolecules & Therapeutics
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    • 제22권1호
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    • pp.62-67
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    • 2014
  • This study was designed to find some potential natural products and/or constituents inhibiting proinflammatory cytokine generation in lung inflammation, since cytokines such as tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$) and interleukin-6 (IL-6) are pivotal for provoking airway inflammation. In our preliminary screening procedure, the 70% ethanol extract of the leaves of Perilla frutescens (PFE) was found to clearly inhibit TNF-${\alpha}$ production in the lung at 100 mg/kg, after intranasal lipopolysaccharide treatment of mice. Based on this result, ten constituents including phenylpropanoids (allyltetramethoxybenzene, caffeic acid, dillapiole, elemicin, myristicin, nothoapiole, rosmarinic acid methyl ester, rosmarinic acid) and monoterpenes (perilla aldehyde and perilla ketone) were successfully isolated from the extract. Among them, elemicin and myristicin were found for the first time to concentration-dependently inhibit IL-$1{\beta}$-treated IL-6 production from lung alveolar epithelial cells (A549) at concentrations of $10-100{\mu}M$. These findings suggest that the phenylpropanoids including elemicin and myristicin have the potential to be new inhibitory agents against lung inflammation and they may contribute, at least in part, to the inhibitory activity of PFE on the lung inflammatory response.

괴불나무(Lonicera maackii) 줄기의 성분 (Phytochemical Constituents of Lonicera maackii Stems)

  • 안계영;정승우;조희찬;박진영;김명조;김현표;양희정;전완주;권용수
    • 생약학회지
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    • 제49권2호
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    • pp.103-107
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    • 2018
  • Two phenylpropanoids, three caffeoylquinic acid deravatives and an iridoid were isolated from the stem of Lonicera macckii. On the basis of physico-chemical data, these compounds were identified as caffeic acid methyl ester(1), 5-caffeoylquinic acid n-butyl ester(2), methyl 3,4-dicaffeoyl quinate(3), 3,5-dicaffeoyl quinic acid n-butyl ester(4), loganin (5) and caffeic acid(6). All compounds were isolated for the first time from the stem of this plant.

Isolation of the ppar-${\gamma}$ ligands from the stem of the Zanthoxylum Schinifolium and their structure activity relationships

  • Nam, Jeong-Bum;Lee, Jeong-Hyung;Kim, Young-Ho;Lee, Jung-Joon
    • 대한약학회:학술대회논문집
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    • 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
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    • pp.380.2-380.2
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    • 2002
  • Peroxisome proliferator-activated receptor (PPAR)-$\gamma$ is a nuclear hormone receptor family that plays an important role in the transcriptional regulation of genes in cellular lipid and energy metabolism. In our search for Iigands for PPAR-$\gamma$ from natural resources. two phenylpropanoids. 3.4.5-Trimethoxy cinnamylalcohol (1) and 3.4.5- Trimethoxy cinnamaldehyde (2). were isolated as PPAR-$\gamma$ agonists from the MeOH extracts of Zanthoxylum schinifolium Sieb. & ZUCCo (Rutaceae) by activity-guided fractionation. These two compoundS bind and activated PPAR-$\gamma$ transcriptional activity in a dose dependent manner assessed by ligand-binding assay. While the maximum activities for PPAR-$\gamma$ of these compounds were comparable with that of rosiglitazone. which is currently used in the treatment of Type II diabetes. the potency of these compounds were much weaker than rosiglitazone ($ED_{50}$=t.2$\mu\textrm{M}$) with the $ED_{50}$ values of 9.08 and 4.08 $\mu\textrm{M}$. respectively. To examine the structure-activity relationship of phenylpropanoids. we prepared several phenylpropanoid derivatives and measured the activity. We observed that substituents at 4'- position could playa key role in determining the potency for PPAR-$\gamma$ agonistic activity .

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식용식물자원으로부터 활성물질의 탐색-XIX. 사자발쑥(Artemisia princeps PAMPANINI, Sajabalssuk)의 전초로부터 저밀도 지질 단백질(LDL) 산화 억제물질의 분리 (Development of Biologically Active Compounds from Edible Plant Sources-XIX. Isolation of Inhibitory Compound on LDL-Oxidation from the Aerial Parts of Sajabalssuk (Artemisia princeps PAMPANINI, Sajabalssuk))

  • 방면호;송명종;한민우;이대영;조진경;정해곤;정태숙;이경태;최명숙;백남인
    • Applied Biological Chemistry
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    • 제50권3호
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    • pp.224-227
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    • 2007
  • 사자발쑥의 전초를 80% MeOH 용액으로 추출하고, 얻어진 추출물을 EtOAc, n-BuOH 및 물로 용매 분획 하였다. 이 중 EtOAc 분획으로부터 silica gel과 octadecyl silica gel(ODS)column chromatography로 정제하여 2종의 phenylpropanoids 화합물을 분리하였다. 각 화합물의 화학구조는 NMR, MS 및 IR등의 스펙트럼 데이터를 해석하여 eugenol(1) 및 (-)-sesamin(2)으로 동정하였다. 이 화합물들은 사자발쑥에서 처음 분리되었다. Eugenol(1)은 LDL-항산화활성 억제활성이 40 ${\mu}g/ml$ 처리 농도에서 $87.8{\pm}1.0%$로 나타났다.

식물세포(植物細胞) 배양(培養)에 의(依)한 이차대사산물(二次代謝産物)의 생성(生成)에 관(關)한 연구(硏究) - II. Capsicum annuum L.의 배양세포(培養細胞)에 있어서 Growth Regulator가 Capsaicinoids, Phenylpropanoids 생성(生成) 및 Phenylalanine Amnonia-lyase (PAL) 활성(活性)에 미치는 영향 - (Formation of Secondary Products by Plant Cell Culture - II. Effects of Growth Regulators on the Formation of Capsaicinoide, Phenylpropanoids and PAL Activity in Cultured Cell of Capsicum annuum L. -)

  • 최봉순
    • 한국식품영양과학회지
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    • 제16권1호
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    • pp.10-17
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    • 1987
  • 고추의 배양세포(培養細胞)에 있어서 고추의 신미성분(辛味成分)인 capsaicinoids 생성(生成)에 미치는 growth regulator의 영향을 조사하기 위하며 growth regulator들을 각각 함유한 Linsmaier-Skoog 기본배지에서 배양(培養)한 callus의 capsaicinoids을 GLC에 의하여 조사하고 또한 capsaicinoids의 중간대사 산물인 phenylpropanoids와 phenylalanine ammonia-lyase activity을 측정하여 다음과 같은 결과를 얻었다. 1. Growth regulators가 배양세포(培養細胞)의 capsaicinoids 생성(生成)에 미치는 영향을 조사한 결과 growth regulators을 달리한 배지(培地)에서 생성(生成)된 capsaicinoids의 함량(含量)은 $2,4-D\;10^{-6}M$에서 가장 capsaicinoids의 생성량(生成量)이 많았으며 $IAA\;10^{-6}M,\;NAA\;10^{-6}M,\;kinetin\;10^{-6}M$의 배지(培地)에서는 2,4-D에 비(比)하여 각각 65%, 38%, 68%이었다. 2. Growth regulators을 달리한 기본배지에서 생성(生成)된 phenylpropanoids는 cinnamic acid, coumaric acid의 생성(生成)은 5, 15, 25일(日)에 점진적으로 증가하였으며 NAA 함유 배지에서는 2,4-D에 비해 약 30%, kinetin, IAA 함유배지에서는 약 70% 생성(生成)되었다. 3. $2,4-B\;10^{-6}M$을 함유한 배양세포(培養細胞)에서 phenylalanine ammonia-lyase activity을 측정한 결과 배양후(培養後) 5, 15, 25일(日) 배양일수에 따라 phenylalanine ammonia-lyase activity는 신선중량 g당 생성된 cinnamate는 각각 52, 81 및 209 % nmole로 증가하였다.

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