Base de dados : MEDLINE
Pesquisa : B01.650.940.800.575.912.250.198.500.250.077 [Categoria DeCS]
Referências encontradas : 12 [refinar]
Mostrando: 1 .. 10   no formato [Detalhado]

página 1 de 2 ir para página        

  1 / 12 MEDLINE  
              next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28152453
[Au] Autor:Cui Y; Shen N; Yuan X; Dang J; Shao Y; Mei L; Tao Y; Wang Q; Liu Z
[Ad] Endereço:Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, Qinghai, PR China; Key Laboratory of Tibetan Medicine Research, Chinese Academy of Sciences, Xining 810008, Qinghai, PR China; Key Laboratory of Tibetan Medicine Research of Qinghai Province, Xining 810008, Qinghai,
[Ti] Título:Two-dimensional chromatography based on on-line HPLC-DPPH bioactivity-guided assay for the preparative isolation of analogue antioxidant compound from Arenaria kansuensis.
[So] Source:J Chromatogr B Analyt Technol Biomed Life Sci;1046:81-86, 2017 Mar 01.
[Is] ISSN:1873-376X
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Traditional Tibetan medicine is important for discovery of drug precursors. However, information about the chemical composition of traditional Tibetan medicine is very limited due to the lack of appropriate chromatographic purification methods. In the present work, A. kansuensis was taken as an example and a novel two-dimensional reversed-phase/hydrophilic interaction liquid chromatography(HILIC) method based on on-line HPLC-DPPH bioactivity-guided assay was developed for the purification of analogue antioxidant compounds with high purity from the extract of A. kansuensis. Based on the separation results of many different chromatographic stationary phases, the first-dimensional (1D) preparation was carried on a RP-C18HCE prep column, and 2 antioxidant fractions were obtained from the 800mg crude sample with a recovery of 56.7%. A HILIC-XAmide prep column was selected for the second-dimensional (2D) preparation. Finally, a novel antioxidant ß-carboline Alkaloids (Glusodichotomine AK) and 4 known compounds (Tricin, Homoeriodictyol, Luteolin, Glucodichotomine B) were purified from A. kansuensis. The purity of the compounds isolated from the crude extract was >98%, which indicated that the method built in this work was efficient to manufacture single analogue antioxidant compounds of high purity from the extract of A. kansuensis. Additionally, this method showed great potential in the preparation of analogue structure antioxidant compounds and can serve as a good example for the purification of analogue structure antioxidant carboline alkaloids and flavonoids from other plant materials.
[Mh] Termos MeSH primário: Antioxidantes/análise
Arenaria (Planta)/química
Cromatografia Líquida de Alta Pressão/métodos
Extratos Vegetais/análise
[Mh] Termos MeSH secundário: Alcaloides/análise
Alcaloides/química
Alcaloides/isolamento & purificação
Antioxidantes/química
Antioxidantes/isolamento & purificação
Compostos de Bifenilo/química
Picratos/química
Extratos Vegetais/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Alkaloids); 0 (Antioxidants); 0 (Biphenyl Compounds); 0 (Picrates); 0 (Plant Extracts); DFD3H4VGDH (1,1-diphenyl-2-picrylhydrazyl)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170522
[Lr] Data última revisão:
170522
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170203
[St] Status:MEDLINE


  2 / 12 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:24933464
[Au] Autor:Pereira E; Barros L; Calhelha RC; Dueñas M; Carvalho AM; Santos-Buelga C; Ferreira IC
[Ad] Endereço:CIMO-Escola Superior Agrária, Instituto Politécnico de Bragança, Campus de Santa Apolónia, 1172, 5301-855 Bragança, Portugal. iferreira@ipb.pt.
[Ti] Título:Bioactivity and phytochemical characterization of Arenaria montana L.
[So] Source:Food Funct;5(8):1848-55, 2014 Aug.
[Is] ISSN:2042-650X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The bioactivity (antioxidant and cytotoxic activities) of the aqueous and methanolic extracts of Arenaria montana L., a plant commonly used in Portuguese folk medicine, was evaluated and compared. Furthermore, the phytochemical composition was determined based on hydrophilic (sugars, organic acids and phenolic compounds) and lipophilic (fatty acids and tocopherols) compounds, in order to valorize this plant material as a functional food/nutraceutical. Fructose, oxalic acid, methyl-luteolin 2''-O-feruloylhexosyl-C-hexoside, α-tocopherol, and linoleic acid were the main individual compounds found in A. montana. In general, the aqueous extract showed higher antioxidant and cytotoxic activities than the methanolic extract; the latter showed activity only against HeLa and HepG2 cell lines. Both aqueous and methanolic extracts showed some hepatotoxicity but at higher doses than the ones active for tumor cell lines. Moreover, the aqueous extract of A. montana may be used as a functional food or nutraceutical due to the high antioxidant and cytotoxic activities, and due to the presence of bioactive compounds. As far as we know, this is the first report on the phytochemical composition and bioactivity of A. montana.
[Mh] Termos MeSH primário: Antineoplásicos Fitogênicos/farmacologia
Arenaria (Planta)/química
Compostos Fitoquímicos/farmacologia
Extratos Vegetais/farmacologia
[Mh] Termos MeSH secundário: Antioxidantes/farmacologia
Linhagem Celular Tumoral
Células HeLa
Células Hep G2
Seres Humanos
Células MCF-7
Fenóis/farmacologia
Tocoferóis/farmacologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Antineoplastic Agents, Phytogenic); 0 (Antioxidants); 0 (Phenols); 0 (Phytochemicals); 0 (Plant Extracts); R0ZB2556P8 (Tocopherols)
[Em] Mês de entrada:1503
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:140617
[St] Status:MEDLINE
[do] DOI:10.1039/c4fo00210e


  3 / 12 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
PubMed Central Texto completo
Texto completo
[PMID]:23962409
[Au] Autor:Pouget M; Youssef S; Migliore J; Juin M; Médail F; Baumel A
[Ad] Endereço:Aix-Marseille Université, Institut Méditerranéen de Biodiversité et d'Ecologie (IMBE, UMR CNRS 7263), Technopôle de l'Environnement Arbois-Méditerranée, BP 80, 13545 Aix-en-Provence cedex 04, France.
[Ti] Título:Phylogeography sheds light on the central-marginal hypothesis in a Mediterranean narrow endemic plant.
[So] Source:Ann Bot;112(7):1409-20, 2013 Nov.
[Is] ISSN:1095-8290
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND AND AIMS: Understanding the factors that shape variation in genetic diversity across the geographic ranges of species is an important challenge in the effort to conserve evolutionary processes sustaining biodiversity. The historical influences leading to a central-marginal organization of genetic diversity have been explored for species whose range is known to have expanded from refugia after glacial events. However, this question has rarely been addressed for Mediterranean endemic plants of azonal habitats such as rocky slopes or screes. In this context, this comprehensive study examined molecular and field data from Arenaria provincialis (Caryophyllaceae), a narrow endemic plant of south-eastern France. METHODS: Across the whole geographic range, an investigation was made of whether high levels of abundance and genetic diversity (estimated from amplified fragment length polymorphism markers) are centrally distributed, to evaluate the relevance of the central-marginal hypothesis. Phylogeographic patterns inferred from chloroplast DNA (cpDNA) were used, applying Bayesian methods to test the influence of past biogeographic events. Multivariate analysis combining phylogeographic and ecological data was used to reveal the historical and ecological distinctiveness of populations. KEY RESULTS: Despite the narrow distribution of A. provincialis, a high level of nucleotide variation is found within cpDNA loci, supporting its persistence throughout the Pleistocene period. The area characterized by the highest genetic diversity is centrally located. Structured phylogeography and Bayesian factor analysis supported the hypothesis that the central area of the distribution was the source of both westward and eastward migrations, probably during arid periods of the Pleistocene, and more recently was a crossroads of backward migrations. By contrast, the two areas located today at the range limits are younger, have reduced genetic diversity and are marginal in the ecological gradients. CONCLUSIONS: This study highlights a case of strong population distinctiveness within a narrow range. Phylogeography sheds light on the historical role of the areas centrally situated in the distribution. The current range size and abundance patterns are not sufficient to predict the organization of genetic diversity.
[Mh] Termos MeSH primário: Arenaria (Planta)/genética
Modelos Biológicos
Filogeografia
[Mh] Termos MeSH secundário: Análise do Polimorfismo de Comprimento de Fragmentos Amplificados
Sequência de Bases
DNA de Cloroplastos/genética
França
Haplótipos/genética
Região do Mediterrâneo
Filogenia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (DNA, Chloroplast)
[Em] Mês de entrada:1405
[Cu] Atualização por classe:170220
[Lr] Data última revisão:
170220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:130822
[St] Status:MEDLINE
[do] DOI:10.1093/aob/mct183


  4 / 12 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:23670630
[Au] Autor:Zhou GS; Ma XL; Zeng KW; Tu PF; Jiang Y
[Ad] Endereço:State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, PR China.
[Ti] Título:Inhibitory activity of chemical constituents from Arenaria serpyllifolia on nitric oxide production.
[So] Source:Planta Med;79(8):687-92, 2013 May.
[Is] ISSN:1439-0221
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Five new compounds, including one new xanthone, 1-hydroxy-5-methoxyxanthone 6-O-ß-D-glucopyranoside (1), one new lignan, 3-(ß-D-glucopyranosyloxymethyl)-2-(4-hydroxy-3-methoxyphenyl)-5-(3-acetoxypropyl)-7-methoxy-(2R,3S)-dihydrobenzofuran (2), and three new γ-pyrones, japonicumone A 4'-O-ß-D-glucopyranoside (3), japonicumone B 3'-O-ß-D-glucopyranoside (4), and japonicumone B 4'-O-ß-D-glucopyranoside (5), together with eight known compounds (6-13) were isolated from the whole plants of Arenaria serpyllifolia. Their structures were elucidated on the basis of extensive spectroscopic analysis (UV, IR, HRESIMS, 1D- and 2D-NMR, and CD) as well as chemical methods. The isolated compounds were evaluated for their inhibitory effects on nitric oxide production in lipopolysaccharide-activated RAW 264.7 macrophages. Compounds 1-5, sacranoside A (9), and pedunculoside (13) showed potential nitric oxide inhibitory activities with IC50 values ranging from 14.92 µM to 52.23 µM.
[Mh] Termos MeSH primário: Arenaria (Planta)/química
Óxido Nítrico/antagonistas & inibidores
Extratos Vegetais/farmacologia
[Mh] Termos MeSH secundário: Animais
Linhagem Celular
Cromatografia Líquida de Alta Pressão
Macrófagos/efeitos dos fármacos
Macrófagos/metabolismo
Camundongos
Óxido Nítrico/biossíntese
Extratos Vegetais/química
Análise Espectral
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Plant Extracts); 31C4KY9ESH (Nitric Oxide)
[Em] Mês de entrada:1312
[Cu] Atualização por classe:130524
[Lr] Data última revisão:
130524
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:130515
[St] Status:MEDLINE
[do] DOI:10.1055/s-0032-1328538


  5 / 12 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
PubMed Central Texto completo
Texto completo
[PMID]:23349668
[Au] Autor:Maurice AC; Abdelkrim J; Cisel M; Zavodna M; Bardin P; Matamoro A; Dumez R; Machon N
[Ad] Endereço:Unité Conservation des Espèces, Restauration et Suivi des Populations, Unité Mixte de Recherche 7204, Muséum National d'Histoire Naturelle, Paris, France.
[Ti] Título:Mixing plants from different origins to restore a declining population: ecological outcomes and local perceptions 10 years later.
[So] Source:PLoS One;8(1):e50934, 2013.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Populations of the Large-flowered Sandwort (Arenaria grandiflora L.) in the Fontainebleau forest (France) have declined rapidly during the last century. Despite the initiation of a protection program in 1991, less than twenty individuals remained by the late 1990s. The low fitness of these last plants, which is likely associated with genetic disorders and inbreeding depression, highlighted the need for the introduction of non-local genetic material to increase genetic diversity and thus restore Fontainebleau populations. Consequently, A. grandiflora was introduced at three distant sites in the Fontainebleau forest in 1999. Each of these populations was composed of an identical mix of individuals of both local and non-local origin that were obtained through in vitro multiplication. After establishment, the population status (number of individuals, diameter of the plants, and number of flowers) of the introduced populations was monitored. At present, two populations (one of which is much larger than the other) persist, while the third one became extinct in 2004. Analyses of the ecological parameters of the introduction sites indicated that differences in soil pH and moisture might have contributed to the differences in population dynamics. This introduction plan and its outcome attracted interest of local community, with those who supported the plan and regarded its 10-year result as a biological success (i.e., persistent populations were created), but also those who expressed reservations or disapproval of the plan and its outcome. To understand this controversy, a sociological study involving 27 semi-structured interviews was carried out. From these interviews emerged three areas of controversy: alteration of the identity of the plant, alteration of the identity of its territory, and the biological and ethical consequences of the techniques used for the experimental conservation.
[Mh] Termos MeSH primário: Arenaria (Planta)/crescimento & desenvolvimento
Conservação dos Recursos Naturais/métodos
Fenômenos Ecológicos e Ambientais
[Mh] Termos MeSH secundário: Atitude
Técnicas de Cultura
Dinâmica Populacional
Sociologia
Fatores de Tempo
Árvores
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1307
[Cu] Atualização por classe:170220
[Lr] Data última revisão:
170220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:130126
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0050934


  6 / 12 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:21371724
[Au] Autor:Timité G; Mitaine-Offer AC; Miyamoto T; Tanaka C; Mirjolet JF; Duchamp O; Lacaille-Dubois MA
[Ad] Endereço:Laboratoire de Pharmacognosie, UMIB, UPRES-EA 3660, Faculté de Pharmacie, Université de Bourgogne, 7, Bd. Jeanne D'Arc, BP 87900, 21079 Dijon Cedex, France.
[Ti] Título:Unusual oleanane-type saponins from Arenaria montana.
[So] Source:Phytochemistry;72(6):503-7, 2011 Apr.
[Is] ISSN:1873-3700
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Three oleanane-type saponins, 3-O-ß-d-glucopyranosylechinocystic acid 28-O-ß-d-xylopyranosyl-(1→4)-[α-l-rhamnopyranosyl-(1→2)]-α-l-rhamnopyranosyl ester (1), 3-O-ß-d-glucopyranosylechinocystic acid 28-O-α-l-arabinopyranosyl-(1→3)-ß-d-xylopyranosyl-(1→4)-[α-l-rhamnopyranosyl-(1→2)]-α-l-rhamnopyranosyl ester (2), 3-O-ß-d-glucopyranosylcaulophyllogenin 28-O-ß-d-apiofuranosyl-(1→3)-ß-d-xylopyranosyl-(1→4)-[ß-d-apiofuranosyl-(1→3)]-α-l-rhamnopyranosyl-(1→2)-α-l-rhamnopyranosyl ester (3) were isolated from the whole plant of Arenaria montana. Their unusual structures for the Caryophyllaceae family were established mainly by 2D NMR techniques and mass spectrometry.
[Mh] Termos MeSH primário: Antineoplásicos/química
Arenaria (Planta)/química
Ácido Oleanólico/análogos & derivados
Saponinas/química
[Mh] Termos MeSH secundário: Antineoplásicos/isolamento & purificação
Antineoplásicos/farmacologia
Linhagem Celular Tumoral
Proliferação Celular/efeitos dos fármacos
Relação Dose-Resposta a Droga
Ensaios de Seleção de Medicamentos Antitumorais
Seres Humanos
Espectroscopia de Ressonância Magnética
Espectrometria de Massas
Estrutura Molecular
Ácido Oleanólico/química
Ácido Oleanólico/isolamento & purificação
Ácido Oleanólico/farmacologia
Saponinas/isolamento & purificação
Saponinas/farmacologia
Estereoisomerismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antineoplastic Agents); 0 (Saponins); 0 (oleanane); 6SMK8R7TGJ (Oleanolic Acid)
[Em] Mês de entrada:1109
[Cu] Atualização por classe:131121
[Lr] Data última revisão:
131121
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:110305
[St] Status:MEDLINE
[do] DOI:10.1016/j.phytochem.2011.01.011


  7 / 12 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
[PMID]:21265053
[Au] Autor:Schneeweiss GM; Schönswetter P
[Ad] Endereço:Department of Biogeography and Botanical Garden, University of Vienna, Vienna, Austria. gerald.schneeweiss@univie.ac.at
[Ti] Título:A re-appraisal of nunatak survival in arctic-alpine phylogeography.
[So] Source:Mol Ecol;20(2):190-2, 2011 Jan.
[Is] ISSN:1365-294X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A long standing and at times fervid debate in biogeography revolves around the question whether arctic and high alpine organisms survived Pleistocene ice ages on small island-like areas protruding above the ice-sheet, socalled nunataks, or whether they did so in peripheral nonglaciated refugial areas. A common picture emerging from a plethora of molecular phylogeographic studies in the last decade is that both in the Arctic and in temperate mountain ranges such as the European Alps nunatak survival needs to be only rarely invoked to explain observed genetic patterns (for a rare example see Stehlik et al. 2002). As two studies in this issue show, depreciation of the nunatak hypothesis is, however, not warranted. In this issue of Molecular Ecology Westergaard et al. (2011) investigate genetic patterns of two arctic-alpine plant species distributed on both sides of the Atlantic exclusively in areas that were mostly covered by ice-sheets during Pleistocene glacial advances. In both species, amplified fragment length polymorphism (AFLP) data identified divergent and partly genetically diverse groups east and west of the Atlantic. This suggests, for the first time in Arctic plants, in situ survival on nunataks. In an entirely different geographic setting and on a different geographic scale, Lohse et al. (2011, this issue) study the colonization of high alpine areas in the Orobian Alps, situated within and adjacent to a prominent peripheral refugial area (massif de refuge) in the Southern Alps of northern Italy, by dispersal-limited carabid ground beetles. Using explicit hypothesis testing and inference of ancestral locations in a Bayesian framework, stepwise colonization from two separate southern refugia is found to shape the genetic pattern of these beetles, but at the northern edge, populations survived at least parts of the last glaciation in situ on nunataks.
[Mh] Termos MeSH primário: Clima Frio
Ecossistema
Camada de Gelo
[Mh] Termos MeSH secundário: Análise do Polimorfismo de Comprimento de Fragmentos Amplificados
Animais
Regiões Árticas
Arenaria (Planta)
Caryophyllaceae
Coleópteros
Fenômenos Genéticos
Variação Genética
Itália
Filogeografia
Análise de Sequência de DNA
[Pt] Tipo de publicação:JOURNAL ARTICLE; COMMENT
[Em] Mês de entrada:1107
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:110126
[St] Status:MEDLINE


  8 / 12 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:21156004
[Au] Autor:Westergaard KB; Alsos IG; Popp M; Engelskjøn T; Flatberg KI; Brochmann C
[Ad] Endereço:Tromsø University Museum, Tromsø, Norway. kristine@ecofact.no
[Ti] Título:Glacial survival may matter after all: nunatak signatures in the rare European populations of two west-arctic species.
[So] Source:Mol Ecol;20(2):376-93, 2011 Jan.
[Is] ISSN:1365-294X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Biogeographers claimed for more than a century that arctic plants survived glaciations in ice-free refugia within the limits of the North European ice sheets. Molecular studies have, however, provided overwhelming support for postglacial immigration into northern Europe, even from the west across the Atlantic. For the first time we can here present molecular evidence strongly favouring in situ glacial persistence of two species, the rare arctic-alpine pioneer species Sagina caespitosa and Arenaria humifusa. Both belong to the 'west-arctic element' of amphi-Atlantic disjuncts, having their few and only European occurrences well within the limits of the last glaciation. Sequencing of non-coding regions of chloroplast DNA revealed only limited variation. However, two very distinct and partly diverse genetic groups, one East and one West Atlantic, were detected in each species based on amplified fragment length polymorphisms (AFLPs), excluding postglacial dispersal from North America as explanation for their European occurrences. Patterns of genetic diversity and distinctiveness indicate that glacial populations existed in East Greenland and/or Svalbard (A. humifusa) and in southern Scandinavia (S. caespitosa). Despite their presumed lack of long-distance dispersal adaptations, intermixed populations in several regions indicate postglacial contact zones. Both species are declining in Nordic countries, probably due to climate change-induced habitat loss. Little or no current connectivity between their highly fragmented and partly distinct populations call for conservation of several populations in each geographic region.
[Mh] Termos MeSH primário: Arenaria (Planta)/genética
Arenaria (Planta)/fisiologia
Caryophyllaceae/genética
Caryophyllaceae/fisiologia
Ecossistema
Camada de Gelo
[Mh] Termos MeSH secundário: Análise do Polimorfismo de Comprimento de Fragmentos Amplificados
Regiões Árticas
Clima Frio
DNA de Cloroplastos/genética
Europa (Continente)
Variação Genética
Filogeografia
Polimorfismo de Fragmento de Restrição
Análise de Sequência de DNA
Estresse Fisiológico
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (DNA, Chloroplast)
[Em] Mês de entrada:1107
[Cu] Atualização por classe:110107
[Lr] Data última revisão:
110107
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:101216
[St] Status:MEDLINE
[do] DOI:10.1111/j.1365-294X.2010.04928.x


  9 / 12 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
[PMID]:17885847
[Au] Autor:Jia AQ; Tan NH; Zhou J
[Ad] Endereço:State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Graduate School of the Chinese Academy of Sciences, Kunming, Yunnan, China.
[Ti] Título:New cyclopeptides in Arenaria oreophila (Caryophyllaceae).
[So] Source:J Asian Nat Prod Res;9(6-8):569-74, 2007 Sep-Dec.
[Is] ISSN:1028-6020
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Two new cyclopeptides, arenariphilin G (1) and arenariphilin H (2), were isolated from the whole plants of Arenaria oreophila Hook. Their structures were determined as cyclo(Pro-Ile-Ser(2)-Gly-Ala(1)-Ala(2)-Val-Ser(1)) (1) and cyclo(Pro-Gly- Phe-Ser-Leu) (2), respectively, by detailed spectroscopic analysis.
[Mh] Termos MeSH primário: Arenaria (Planta)/química
Peptídeos Cíclicos/isolamento & purificação
[Mh] Termos MeSH secundário: Espectroscopia de Ressonância Magnética
Peptídeos Cíclicos/química
Espectrometria de Massas de Bombardeamento Rápido de Átomos
Espectrofotometria Ultravioleta
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Peptides, Cyclic)
[Em] Mês de entrada:0805
[Cu] Atualização por classe:090721
[Lr] Data última revisão:
090721
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:070922
[St] Status:MEDLINE


  10 / 12 MEDLINE  
              first record previous record
seleciona
para imprimir
Fotocópia
[PMID]:17655145
[Au] Autor:Lei N; Du SS; Li L; Zheng YF; Zhang WS; Wang YY
[Ad] Endereço:Center for Natural Medicine Engineering, Ministry of Education, College of Resources Science & Technology, Beijing Normal University, Beijing 100088, China.
[Ti] Título:[Chemical constituents from a Tibetan medicine Arenaria kansuensis I].
[So] Source:Zhongguo Zhong Yao Za Zhi;32(10):918-20, 2007 May.
[Is] ISSN:1001-5302
[Cp] País de publicação:China
[La] Idioma:chi
[Ab] Resumo:OBJECTIVE: To study the chemical constituents of Arenaria kansuensis. METHOD: Column chromatographic techniques were applied to isolated constituents. A combination of physico-chemical properties and spectroscopic analysis were used to identify structures of constituents. RESULT: Five compounds were obtained and elucidated as tricin (1), tricin-7-O-beta-D-glucopyranoside (2), tricin 4'-O-beta-guaiacylglyceryl ether (3), isoscoparin (4) and isovitexin (5). CONCLUSION: Compound 2, 3 and 5 were isolated from A. kansuensis for the first time, compound 3 was obtained from the family Caryophyllaceae for the first time.
[Mh] Termos MeSH primário: Apigenina/isolamento & purificação
Arenaria (Planta)/química
Flavonas/isolamento & purificação
Glucosídeos/isolamento & purificação
Plantas Medicinais/química
[Mh] Termos MeSH secundário: Apigenina/química
Flavonas/química
Flavonoides/química
Flavonoides/isolamento & purificação
Glucosídeos/química
Tibet
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Flavones); 0 (Flavonoids); 0 (Glucosides); 0 (tricin 4'-O-guaiacylglyceryl ether); 0 (tricin 7-O-glucopyranoside); 7V515PI7F6 (Apigenin); D51JZL38TQ (tricin); KTQ9R9MS0Q (isovitexin)
[Em] Mês de entrada:0808
[Cu] Atualização por classe:161124
[Lr] Data última revisão:
161124
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:070728
[St] Status:MEDLINE



página 1 de 2 ir para página        
   


Refinar a pesquisa
  Base de dados : MEDLINE Formulário avançado   

    Pesquisar no campo  
1  
2
3
 
           



Search engine: iAH v2.6 powered by WWWISIS

BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde