Base de dados : MEDLINE
Pesquisa : B01.650.940.800.575.912.250.618.937.727 [Categoria DeCS]
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  1 / 7 MEDLINE  
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[PMID]:28573242
[Au] Autor:Dwarka D; Thaver V; Naidu M; Baijnath H
[Ad] Endereço:School of Biological Sciences, University of KwaZulu-Natal, Durban, South Africa Westville Campus, Durban, South Africa.
[Ti] Título:NEW INSIGHTS INTO THE PRESENCE OF BILIRUBIN IN A PLANT SPECIES (STRELITZIACEAE).
[So] Source:Afr J Tradit Complement Altern Med;14(2):253-262, 2017.
[Is] ISSN:2505-0044
[Cp] País de publicação:Nigeria
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: The fortuitous discovery of an animal pigment bilirubin found in the plant has opened an enormous number of questions regarding bilirubin's formation and its ultimate function in the human body. MATERIALS AND METHODS: A methodical review of bilirubin in humans and animals was carried out, information was gathered using published scientific journals, books and conference proceedings. Articles based on case studies of elevated levels of bilirubin were analysed thoroughly. RESULTS: Even though for numerous years bilirubin was assumed to be merely a desecrate product of the heme catabolic pathway by greatest, and a likely lethal compound at worst; statistics from the last few decades clearly shows that placidly high serum bilirubin levels are robustly related to have abundant beneficial effects on the human body. CONCLUSION: This study reveals new insights into the presence of the only animal pigment found in arils, the potential advantages of bilirubin found in a plant and its therapeutic value indications. This review hopes to resuscitate researchers' credence regarding bilirubin as a toxic compound.
[Mh] Termos MeSH primário: Bilirrubina
Extratos Vegetais
Strelitziaceae/química
[Mh] Termos MeSH secundário: Animais
Bilirrubina/sangue
Bilirrubina/uso terapêutico
Seres Humanos
Extratos Vegetais/uso terapêutico
Sementes/química
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Nm] Nome de substância:
0 (Plant Extracts); RFM9X3LJ49 (Bilirubin)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170816
[Lr] Data última revisão:
170816
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170603
[St] Status:MEDLINE
[do] DOI:10.21010/ajtcam.v14i2.27


  2 / 7 MEDLINE  
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[PMID]:28480426
[Au] Autor:Dwarka D; Thaver V; Naidu M; Koorbanally NA; Baijnath AH
[Ad] Endereço:School of life Sciences, University of KwaZulu Natal, Westville Campus, Durban. South Africa.
[Ti] Título:IN CHEMO-PREVENTATIVE ACTIVITY OF ARIL EXTRACT CONTAINING BILIRUBIN.
[So] Source:Afr J Tradit Complement Altern Med;14(3):147-156, 2017.
[Is] ISSN:2505-0044
[Cp] País de publicação:Nigeria
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: The discovery of the only animal pigment, bilirubin, in the plant has triggered a vast number of questions regarding bilirubin's formation and its role in the human body. Recent studies have confirmed that bilirubin at certain levels have many medical benefits. Various case studies have revealed that bilirubin is a potent antioxidant. Cervical cancer is one of South Africa's largest womens' health crises. It is estimated that it affects one out of 41 South African women and kills approximately 8 women in the country every day. Thus, the aim of this study was to investigate if the aril extract of (Regel and Körn.) containing bilirubin possesses anti-cancer activity and to determine its effect on the induction of apoptosis. MATERIALS AND METHODS: The DPPH activity was firstly used to determine the antioxidant effect of the extract. Thereafter, the cytotoxic effect was tested using the XTT assay. Apoptosis was confirmed and quantified using the Annexin V-PE kit and the morphology was studied using acridine orange and ethidium bromide. RESULTS: The aril extract decreased cell viability by 52% and induced apoptosis in HeLa cells; as shown by the Annexin V-PE Apoptosis detection kit and morphological studies with acridine orange/ethidium bromide staining. CONCLUSION: The activity of the extract as a potent antioxidant was immensely enhanced as compared to the bilirubin standard. These results suggest that aril extract containing bilirubin works synergistically as opposed to bilirubin on its own. Furthermore, this extract might be a good candidate for the therapeutic intervention of cervical cancer.
[Mh] Termos MeSH primário: Antioxidantes/farmacologia
Bilirrubina/farmacologia
Frutas/química
Extratos Vegetais/farmacologia
Strelitziaceae/química
[Mh] Termos MeSH secundário: Antioxidantes/química
Apoptose/efeitos dos fármacos
Sobrevivência Celular/efeitos dos fármacos
Feminino
Células HeLa
Seres Humanos
Extratos Vegetais/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antioxidants); 0 (Plant Extracts); RFM9X3LJ49 (Bilirubin)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170815
[Lr] Data última revisão:
170815
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170509
[St] Status:MEDLINE
[do] DOI:10.21010/ajtcam.v14i3.16


  3 / 7 MEDLINE  
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[PMID]:26494708
[Au] Autor:Taravati S; Mannion C
[Ad] Endereço:University of California Cooperative Extension 1700 W. Main Street - Alhambra, CA 91801 (staravati@ucanr.edu), staravati@ucanr.edu.
[Ti] Título:Effect of Aggregation and Cage Setting on Some Life-History Parameters of Aleurodicus Rugioperculatus (Hemiptera: Aleyrodidae).
[So] Source:J Econ Entomol;109(1):249-54, 2016 Feb.
[Is] ISSN:0022-0493
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Fecundity is defined as the number of progeny produced by an organism. In our study, we used three different experimental settings to measure the fecundity of rugose spiraling whitefly (Aleurodicus rugioperculatus Martin), a recent invasive insect in Florida, on Strelitzia nicolai host plants. The adult longevity was significantly different among treatments, with females surviving significantly longer in groups in whole-plant cages and individual females in clip cages compared with individual females in whole-plant cages. Females laid 34.5 ± 8.4, 156.4 ± 18.3, and 225.2 ± 18 eggs, on average, when kept individually in whole-plant cages, in a group in whole-plant cages, and individually in clip cages, respectively. In all treatments, there was a significant correlation between the longevity and fecundity of females. Males emerged earlier than females in all treatments. Virgin females produced only males in the F1, while mated females produced both males and females, which suggests an arrhenotokous parthenogenesis. The egg-to-adult survival of the whitefly was 29 ± 4%, and the highest mortality occurred at the crawler stage when reared on S. nicolai. The results showed a significant effect of aggregation and cage setting on longevity and fecundity of this whitefly. To conclude, the experimental setting of the group fecundity treatment is more similar to what occurs in the landscape. Such a significant effect of cage setting and aggregation on the life-history parameters should be always taken into account when designing experiments or interpreting results.
[Mh] Termos MeSH primário: Heterópteros/fisiologia
[Mh] Termos MeSH secundário: Animais
Feminino
Fertilidade
Cadeia Alimentar
Tábuas de Vida
Longevidade
Masculino
Ninfa/crescimento & desenvolvimento
Ninfa/fisiologia
Partenogênese
Strelitziaceae/crescimento & desenvolvimento
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1604
[Cu] Atualização por classe:160211
[Lr] Data última revisão:
160211
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:151024
[St] Status:MEDLINE
[do] DOI:10.1093/jee/tov299


  4 / 7 MEDLINE  
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[PMID]:22401575
[Au] Autor:Mele E; Girardo S; Pisignano D
[Ad] Endereço:Center for Biomolecular Nanotechnologies @UNILE, Istituto Italiano di Tecnologia, Arnesano (LE), Italy. elisa.mele@iit.it
[Ti] Título:Strelitzia reginae leaf as a natural template for anisotropic wetting and superhydrophobicity.
[So] Source:Langmuir;28(11):5312-7, 2012 Mar 20.
[Is] ISSN:1520-5827
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Artificial surfaces that exhibit unidirectional water spreading and superhydrophobicity are obtained by Strelitzia reginae leaves. Both green and dried leaves are used, thus exploiting the plant senescence. We demonstrate that the natural drying process of the leaves strongly affects the surface morphology and wettability. Polymeric stamps from the green leaf show an arrangement of periodic microridges/microgrooves that favor anisotropic wetting, with a water contact angle (WCA) variation of about 21% along the two principal directions. Instead, the shrinkage of the leaf tissue, as a consequence of the natural dehydration process, induces an enhancement of the superficial corrugation. This results in the establishment of a superhydrophobic state, which shows a WCA of up to 160°, and water rolling off. S. reginae leaves are therefore easily accessible stamps suitable for controlling wettability and realizing surfaces that exhibit various wetting behaviors.
[Mh] Termos MeSH primário: Folhas de Planta/química
Strelitziaceae/química
Molhabilidade
[Mh] Termos MeSH secundário: Microscopia Eletrônica de Varredura
Água
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
059QF0KO0R (Water)
[Em] Mês de entrada:1207
[Cu] Atualização por classe:131121
[Lr] Data última revisão:
131121
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:120310
[St] Status:MEDLINE
[do] DOI:10.1021/la300243x


  5 / 7 MEDLINE  
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[PMID]:22126741
[Au] Autor:Lienhard J; Schleicher S; Poppinga S; Masselter T; Milwich M; Speck T; Knippers J
[Ad] Endereço:Institute of Building Structures and Structural Design-ITKE, University of Stuttgart, Germany.
[Ti] Título:Flectofin: a hingeless flapping mechanism inspired by nature.
[So] Source:Bioinspir Biomim;6(4):045001, 2011 Dec.
[Is] ISSN:1748-3190
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:This paper presents a novel biomimetic approach to the kinematics of deployable systems for architectural purposes. Elastic deformation of the entire structure replaces the need for local hinges. This change becomes possible by using fibre-reinforced polymers (FRP) such as glass fibre reinforced polymer (GFRP) that can combine high tensile strength with low bending stiffness, thus offering a large range of calibrated elastic deformations. The employment of elasticity within a structure facilitates not only the generation of complex geometries, but also takes the design space a step further by creating elastic kinetic structures, here referred to as pliable structures. In this paper, the authors give an insight into the abstraction strategies used to derive elastic kinetics from plants, which show a clear interrelation of form, actuation and kinematics. Thereby, the focus will be on form-finding and simulation methods which have been adopted to generate a biomimetic principle which is patented under the name Flectofin®. This bio inspired hingeless flapping device is inspired by the valvular pollination mechanism that was derived and abstracted from the kinematics found in the Bird-Of-Paradise flower (Strelitzia reginae, Strelitziaceae).
[Mh] Termos MeSH primário: Materiais Biomiméticos
Materiais de Construção
Decoração de Interiores e Mobiliário/instrumentação
Modelos Biológicos
Polinização/fisiologia
Strelitziaceae/fisiologia
[Mh] Termos MeSH secundário: Simulação por Computador
Projeto Auxiliado por Computador
Módulo de Elasticidade/fisiologia
Desenho de Equipamento
Análise de Falha de Equipamento
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1204
[Cu] Atualização por classe:111130
[Lr] Data última revisão:
111130
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:111201
[St] Status:MEDLINE
[do] DOI:10.1088/1748-3182/6/4/045001


  6 / 7 MEDLINE  
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[PMID]:19206232
[Au] Autor:Pirone C; Quirke JM; Priestap HA; Lee DW
[Ad] Endereço:Department of Biological Sciences, Florida International University, Miami, Florida 33199, USA. cary.pirone@fiu.edu
[Ti] Título:Animal pigment bilirubin discovered in plants.
[So] Source:J Am Chem Soc;131(8):2830, 2009 Mar 04.
[Is] ISSN:1520-5126
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The bile pigment bilirubin-IXalpha is the degradative product of heme, distributed among mammals and some other vertebrates. It can be recognized as the pigment responsible for the yellow color of jaundice and healing bruises. In this paper we present the first example of the isolation of bilirubin in plants. The compound was isolated from the brilliant orange-colored arils of Strelitzia nicolai, the white bird of paradise tree, and characterized by HPLC-ESMS, UV-visible, (1)H NMR, and (13)C NMR spectroscopy, as well as comparison with an authentic standard. This discovery indicates that plant cyclic tetrapyrroles may undergo degradation by a previously unknown pathway. Preliminary analyses of related plants, including S. reginae, the bird of paradise, also revealed bilirubin in the arils and flowers, indicating that the occurrence of bilirubin is not limited to a single species or tissue type.
[Mh] Termos MeSH primário: Bilirrubina/isolamento & purificação
Strelitziaceae/química
[Mh] Termos MeSH secundário: Bilirrubina/química
Bilirrubina/metabolismo
Cromatografia Líquida de Alta Pressão
Ligações de Hidrogênio
Ressonância Magnética Nuclear Biomolecular
Strelitziaceae/metabolismo
Tetrapirróis/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Nm] Nome de substância:
0 (Tetrapyrroles); RFM9X3LJ49 (Bilirubin)
[Em] Mês de entrada:1007
[Cu] Atualização por classe:161025
[Lr] Data última revisão:
161025
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:090212
[St] Status:MEDLINE
[do] DOI:10.1021/ja809065g


  7 / 7 MEDLINE  
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[PMID]:19374128
[Au] Autor:Khoyratty SU; Souza MT; Jaufeerally-Fakim Y
[Ad] Endereço:Faculty of Agriculture, University of Mauritius, Mauritius.
[Ti] Título:Structural analysis of catalase from two Musa accessions, FHIA18 and Williams, and from Ravenala madagascariensis.
[So] Source:In Silico Biol;8(5-6):413-25, 2008.
[Is] ISSN:1386-6338
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Nucleotide sequences of catalase were obtained following amplification using specific primers and were blasted against Musa acuminata catalase 2 mRNA from NCBI (157418810). Clustering of the amino acid sequences from NCBI was done using Clustal X. The latter revealed that FHIA18 catalase is more related to Ravenala madagascariensis (Musa relative) catalase while the Williams catalase is more related to a clade containing a Musa acuminata (Musa ancestor) catalase from NCBI. The tertiary structures and the catalase consensus functional sites, based on the Pseudomonas syringae catalase structural template, were obtained for FHIA18, Williams, Ravenala madagascariensis and Musa acuminata catalases. They were found to differ slightly. Using known features of catalase active sites, four pre-requisite criteria were defined to find such sites: (1) Position of tyrosine axial to heme determined by X-ray diffraction, (2) 7 conserved amino acids in the active site found by sequence alignment, (3) favourable docking energy, and (4) presence of an unobstructed long tunnel that leads the ligand to the active site. Two differing potential docking sites were found for both FHIA18 and Williams that fit a maximum number of criteria. In terms of 1D sequence, the region of the docking site for Williams is within the catalase domains as seen upon NCBI blast. The counterpart of FHIA18 for the same region is not. This sequence difference between FHIA18 and Williams affects the best docking site in FHIA18 and Williams in silico.
[Mh] Termos MeSH primário: Catalase/química
Musa/classificação
Musa/enzimologia
Strelitziaceae/enzimologia
[Mh] Termos MeSH secundário: Sequência de Aminoácidos
Animais
Sítios de Ligação
Catalase/genética
Catalase/metabolismo
Simulação por Computador
Sequência Conservada
Peróxido de Hidrogênio/química
Peróxido de Hidrogênio/metabolismo
Imagem Tridimensional
Modelos Moleculares
Dados de Sequência Molecular
Musa/genética
Filogenia
Estrutura Terciária de Proteína
Alinhamento de Sequência
Strelitziaceae/genética
Homologia Estrutural de Proteína
Zantedeschia/enzimologia
Zantedeschia/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
BBX060AN9V (Hydrogen Peroxide); EC 1.11.1.6 (Catalase)
[Em] Mês de entrada:0905
[Cu] Atualização por classe:131121
[Lr] Data última revisão:
131121
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:090421
[St] Status:MEDLINE



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