• Archives of Pharmacal Research
• /
• 제17권4호
• /
• pp.273-277
• /
• 1994

Six flavonoids were isolated from the aerial parts of Cirsium flavonoids were identified as apigenin, luteolin, $pectolinarigenin-7-O-{\betha}-D-glucopyranoside$, linarin, pectolinarin and $hispidulin-7-O-{\alpha}-L-rhamonopyranosyl-(1{\rightarrow}2)-{\betha}-D-glucopyranoside$ on the basis of chemical and spctral evidence.

• Natural Product Sciences
• /
• 제17권4호
• /
• pp.342-349
• /
• 2011

This study was performed to determine the composition of phenolic substances contained in the leaves of Cirsium setidens (Compositae), validate the high-performance liquid chromatography (HPLC) method, and determine the in vivo sedative effect of the main component pectolinarin. Six phenolic compounds isolated from C. setidens were spectroscopically identified as chlorogenic acid (1), hyperoside (2), 3,4-di-O-caffeoylquinic acid (3), caffeic acid methyl ester (4), linarin (5), and pectolinarin (6) and then used as standard compounds for HPLC analysis. HPLC proved to be precise, accurate, and sensitive for the simultaneous analysis of the phenolic substances. In particular, six compounds showed good regression ($R^2$ > 0.999) within test ranges and recovery was in the range of 95.4 - 104.8%. The content of pectolinarin was considerably higher (156.48 mg/g) than those of other phenolic substances including the other flavone glycoside, linarin (18.99 mg/g). The contents of other phenolic substances, in order, were chlorogenic acid (8.41 mg/g), 3,4-di-O-caffeoylquinic acid (5.74 mg/g), hyperoside (4.33 mg/g), and caffeic acid methyl ester (0.51 mg/g). Oral administration with compound 6 (10 and 20 mg/kg) enhanced the sleeping time induced by pentobarbital in mice, indicating that it has a sedative effect.

• 한국자원식물학회지
• /
• 제25권5호
• /
• pp.640-646
• /
• 2012

This research was attempted to determine the composition of flavone glycosides (luteolin 7-O-glucoside, luteolin 7-O-glucuronide, linarin) in addition to luteolin simultaneously in aerial part of Youngia japonica (Compositae) by high-performance liquid chromatography. The MeOH extract was further fractionated into the three parts, $CHCl_3$ fraction, EtOAc fraction and BuOH fraction, to investigate the contents of the four flavones in the three fractions. The content of luteolin 7-O-glucuronide (10.07 mg/g) was highest in the MeOH extract among those of the flavones. These four compounds were observed to be less than 1.0 mg/g in $CHCl_3$- and EtOAc fractions but relatively high in BuOH fraction.

• Archives of Pharmacal Research
• /
• 제18권2호
• /
• pp.65-68
• /
• 1995

The methanol extract from the whole parts of the flowers of Chrysanthemum boreals was found to exhibit a significant inhibition of a rat lens aldose reductase (RLAR) activity in vitro. Bioassay guided systematic fractionation of the methanol extract led to the isolation of four flavonoids which were identified as acacetin (1), apigenin (II), luteolin (III) and linarin (IV). Compounds I-III were demonstrated to exhibit a significant inhibition of RLAR. Luteolin (II) was found to be the most potent AR inhibitor with $IC_{50}$ value of $5{\times}10^{-7}M$.

• 대한약학회:학술대회논문집
• /
• 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.1
• /
• pp.203.1-203.1
• /
• 2003

Calcineurin inhibitors, cyclosporine A (CsA)and tacrolimus (FK506), have been studied extensively regarding their effects on T lymphocytes, but their effects on dendritic cells (DC) are relatively unknown. DC can really capture Ag from dead and dying cells for presentation to MHC class I-restricted CTL. The main targets for the immunosuppressive calcinerin inhibitors, FK506 and CsA, have been considered to be activated T cells, but not antigen presenting cells (APCs). (omitted)

• 한국식품과학회지
• /
• 제48권2호
• /
• pp.172-177
• /
• 2016

HPLC/MS를 이용하여 국내 자생 엉겅퀴(Cirsium japonicum)의 페놀성 화합물을 분석한 결과 제주지역 엉겅퀴가 가장 많은 페놀성 화합물을 함유하고 있었으며, chlorogenic acid가 73.15 mg/g dry weight, linarin이 76.67 mg/g dry weight 그리고 pectolinarin이 12.98 mg/g dry weight으로 확인되었다. 엉겅퀴의 기능성 식품으로서의 가치를 확인하기 위하여 산화방지 활성 및 신경세포 보호효과를 평가한 결과 DPPH, ABTS 및 FRAP assay에서 엉겅퀴의 강력한 산화방지 활성이 나타났다. 엉겅퀴 추출물이 DPPH 및 ABTS 라디칼의 50%를 저해하는 농도는 각각 $567{\mu}g/mL$와 $130{\mu}g/mL$으로 나타났다. DPPH, ABTS, FRAP법을 통한 총산화방지능은 각각 11.32, 100.15, $12.76{\mu}g/mL$ trolox equivalents 나타났다. 과산화수소로 산화적 손상을 유도한 PC12 세포에 대하여 MTT와 LDH assay를 이용하여 세포생존률을 측정한 결과 농도 의존적으로 세포 보호 활성이 나타났으며, 마찬가지로 활성산소종 생성률을 측정한 결과 농도 의존적으로 활성산소종 생성이 감소되어 세포 보호활성이 확인되었다. 본 연구를 통하여 엉겅퀴의 우수한 산화방지 활성 및 신경세포 보호효과가 검증되었다. 따라서 엉겅퀴는 안전한 식품 재료로서 꾸준히 섭취하였을 때 천연 산화방지제로 작용하여 신경퇴행을 예방함으로써 알츠하이머병, 파킨슨병 및 헌팅턴병 등의 질병 위험을 줄일 수 있을 것으로 판단된다.

• 생약학회지
• /
• 제40권4호
• /
• pp.326-333
• /
• 2009

Fourteen compounds were isolated from the 70% ethanol extract of Lonicera Caulis (Caprifoliaceae) and their structures were identified as seven aliphatic compounds [long-chain alcohols (1, 2), trilinolein (3), hexacosanol (4), fatty acids (6), 9,12,13-trihydroxyoctadeca-10(E),15(Z)-dienoic acid (10), and pinellic acid (11)] and seven phenolics [bis(2-ethylhexyl) phthalate (dioctylphthalate, DOP) (5), coniferaldehyde (7), caffeic acid docosanoyl ester (8), caffeic acid (9), coniferyl aldehyde 4-O-glucoside (12), linarin (13), and coniferin (14)]. The chemical structures of these compounds were identified on the basis of spectroscopic methods and comparison with literature values. All the compounds except for caffeic acid (9) were isolated from this plant parts for the first time.

• 대한본초학회지
• /
• 제38권4호
• /
• pp.31-43
• /
• 2023

Objectives : The objective of this study was to investigate the phytochemistry and pharmacological activities of Cirsium setidens. Methods : Domestic and international articles about Cirsium setidens were investigated. A review was perfoemed via DB searching engine such as Sci.Direct, Springer, DBpia, KISS, Google scholar, Kipris, and so on. Total 73 listed literature were classified by compound analysis and pharmacological efficacy. Results : C. setidens contains pectolinarin and its glycoside, pectolinarigenin as index compounds, and linarin, apigenin, diosmetin, scopoletin, acacetin, cirsimarin, cirsimaritin, setidenosides A and B, silymarin, hispidulin, 92 volatile compounds, and 15 fatty acids. The Pharmacological activities of C. setidens has been reported to inhibit of platelet aggregation and fat accumulation in the liver, inhibit to hepatitis, anti-cancer, antibacterial, skin improvement, hair growth, liver protection, anti-diabetic, anti-inflammatory, sedative. Also, It has been reported the effect of cholesterol-lowering and anti-obesity, neuroprotective effects, increasing human stem cell viability, inhibiting osteoclast formation and osteogenic differentiation. Conclusion : This reviews showed that C. setidens which has been traditionally used for the treatment of inflammation and hypertension, has anticancer and river protective effect, as well as hair loss and diet. In order to maximize the efficacy of C. setidens, research has also begun on the effect of processing processes such as fermentation or fine powdering and combining natural plant resources.

• Natural Product Sciences
• /
• 제21권3호
• /
• pp.155-161
• /
• 2015

Peroxynitrite (ONOO⁻)-scavenging activities of nine Compositae herbs consisting of three Ixeris, two Youngia, two Cirsium and one of each Lactuca and Taraxacum species were evaluated. The contents of their ONOO⁻ scavengers in the extracts were also determined on a HPLC using seven standard compounds, chlorogenic acid (CGA), chicoric acid (CA), luteolin 7-glucoside (luteolin-7-glc), luteolin 7-glucuronide (luteolin-7-glcU), luteolin, linarin and pectolinarin. Five of those compounds exhibited potent ONOO⁻-scavenging activities: IC₅₀, CA (0.76 μM), CGA (1.34 μM), luteolin (0.81 μM), luteolin-7-glc (0.86 μM) and luteolin-7-glcU (3.13 μM). Both CA and luteolin-7-glc were highly contained in I. dentata (19.71 mg/g and 13.58 mg/g, respectively), I. dentata var. albiflora (17.58 mg/g and 23.83 mg/g, respectively) and I. sonchifolia (65.71 mg/g and 6.99 mg/g, respectively). Among the nine herbs, those three Ixeris species had very low IC₅₀ values over the range of 0.48 - 1.74 μg/mL, suggesting that they could be potential therapeutic vegetables, particularly for preventing diabetic complications or obesity, which can be caused by an excess production of ONOO⁻.

• 한국자원식물학회:학술대회논문집
• /
• 한국자원식물학회 2023년도 임시총회 및 춘계학술대회
• /
• pp.17-17
• /
• 2023

Chrysanthemum zawadskii (C. zawadskii) is used in traditional East Asian medicine for the treatment of various diseases, including inflammatory disease. However, it has remained unclear whether extracts of C. zawadskii inhibit inflammasome activation in macrophages. The present study assessed the inhibitory effect of an ethanol extract of C. zawadskii (CZE) on the activation of the inflammasome in macrophages and the underlying mechanism. Bone marrow[-derived macrophages (BMDMs) were obtained from wild-type C57BL/6 mice. The release of IL-1β and lactate dehydrogenase in response to nucleotide-binding oligomerization domain-like receptor (NLR) family pyrin domain containing 3 (NLRP3) inflammasome activators, such as ATP, nigericin and monosodium urate (MSU) crystals, was significantly decreased by CZE in lipopolysaccharide(LPS)-primed BMDMs. Western blotting revealed that CZE inhibited ATP-induced caspase-1 cleavage and IL-1β maturation. To investigate whether CZE inhibits the priming step of the NLRP3 inflammasome, we confirmed the role of CZE at the gene level using RT-qPCR. CZE also downregulated the gene expression of NLRP3 and pro-IL-1β as well as NF-κB activation in BMDMs in response to LPS. Apoptosis associated speck-like protein containing a caspase-recruitment domain (CARD) oligomerization and speck formation by NLRP3 inflammasome activators were suppressed by CZE. By contrast, CZE did not affect NLR family CARD domain containing protein 4 (NLRC4) or absent in melanoma 2 (AIM2) inflammasome activation in response to Salmonella typhimurium and poly(dA:dT) in LPS-primed BMDMs, respectively. The results revealed that three key components of CZE, namely linarin, 3,5-dicaffeoylquinic acid and chlorogenic acid, decreased IL-1β secretion in response to ATP, nigericin and MSU. These findings suggest that CZE effectively inhibited activation of the NLRP3 inflammasome.