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| Registros recuperados: 41 | |
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| Santos,G.J.L.; Ferreira,T.C.; Rodrigues,A.L.M.; Freitas,J.C.C.; Morais,S.M.; Girão,V.C.C.; Nunes-Pinheiro,D.C.S.. |
| ABSTRACT This study aimed to evaluate Himatanthus drasticus latex in a mice wound healing experimental model. Animals were divided into four groups (n=7) according to the treatments: GI - saline 0.9% (control), GII - mineral oil (vehicle), GIII - H. drasticus commercial latex (HdCL) and GIV - H. drasticus mixed isolated fraction (MIF, 1 mg/mL). The treatments were applied topically once daily, 50 µL for 14 consecutive days. Macroscopic lesions were evaluated, considering parameters such as swelling, redness, granulation tissue and reepithelialization. VEGF+, CD68+ expressions and mast cells (Toluidin blue stain) were evaluated. HdCL induced higher contraction and exuberant granulation tissue (P > 0.05). HdCL showed a mild inflammatory process while MIF... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Latex; Apocinaceae; Wound healing; Angiogenesis; Inflammatory infiltrate. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000300513 |
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| Souza,Maria Aparecida; Amâncio-Pereira,Francielle; Cardoso,Cristina Ribeiro Barros; Silva,Adriano Gomes da; Silva,Edmar Gomes; Andrade,Lívia Resende; Pena,Janethe Deolina Oliveira; Lanza,Henrique; Afonso-Cardoso,Sandra Regina. |
| A lectin from the latex of Synadenium carinatum was purified by affinity chromatography on immobilized-D-galactose-agarose and shown to be a potent agglutinin of human erythrocytes. The haemagglutination of human red cells was inhibited by 3.0 mM N-acetyl-D-galactopyranoside, 6.3 mM methyl-beta-D-galactopyranoside, 50 mM methyl-alpha-D-galactopyranoside and 50 mM D-fucose but not by L-fucose, demonstrating an anomeric and a conformational specificity. According to SDS-PAGE analysis, the lectin appeared to be a glycoprotein composed of two polypeptide chains of ca. 28 and 30 kDa, but size exclusion chromatography (Sephadex G-100) and native PAGE revealed a protein of apparent molecular weight 120 - 130 kDa made up of 28 and 30 kDa subunits. The lectin was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: D-Galactose-binding; Lectin; Latex; Synadenium carinatum. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000600005 |
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| DINIZ,I. R.; MORAIS,H. C.; BOTELHO,A. M. F.; VENTUROLI,F.; CABRAL,B. C.. |
| Nine lactiferous plants of five families were examined for caterpillars in a 4 ha cerrado sensu stricto (savanna-like vegetation) area of the University of Brasília Experimental Farm (DF, Brazil), from August 1995 to May 1997. In 5,540 censuses, less than 5% of the plants hosted caterpillars. All the caterpillars found, a total of 55 species in 15 families were reared under laboratory conditions. Pyralidae, Geometridae, Elachistidae, Megalopygidae, and Limacodidae were the richest caterpillar families recorded. Of the 55 species, more than 40% were polyphagous, feeding on different host plant families, while 21 were considered rare species with less than four records during the study period. The species' rareness did not permit any analysis of diet... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Latex; Lepidoptera; Host-plants; Cerrado; Diet. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081999000400012 |
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| Andrade,T.A.M.; Iyer,A.; Das,P.K.; Foss,N.T.; Garcia,S.B.; Coutinho-Netto,J.; Jordão-Jr.,A.A.; Frade,M.A.C.. |
| The aim of the present study was to compare healing obtained with biomembranes with the natural healing process (sham) using biochemical and immunohistological assays. C57BL/6 mice were divided into 4 groups of 15 mice each and received different subcutaneous implants: natural latex biomembrane (NLB), denatured latex (DL), expanded polytetrafluorethylene (ePTFE), or sham. On the 2nd, 7th, and 14th days post-treatment, 5 mice per group were sacrificed and biopsied for the following measurements: oxidative stress based on malondialdehyde (MDA), myeloperoxidase (MPO) and hydrogen peroxide by the method of ferrous oxidation-xylenol orange (FOX), as well as glutathione and total proteins; histological evaluation to enumerate inflammatory cells, fibroblasts,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Wound healing; Inflammation; Oxidative stress; Angiogenesis; Latex; Histomorphometry. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011001000009 |
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| Freitas,Cleverson D. T. de; Souza,Diego P. de; Araújo,Eliane S.; Cavalheiro,Mariana G.; Oliveira,Luciana S.; Ramos,Márcio V.. |
| In this study, proteins extracted from laticifer cells of three plants were examined by electrophoresis, mass spectrometry (MALDI-TOF) and characterized in respect of proteolytic, chitinolytic and anti-oxidative activities by means of zymography and colorimetric assays. Acidic proteins with molecular masses between 12.5 and 74.5 kDa predominated in laticifers of P. rubra. This profile was not found in laticifers of C. grandiflora and E. tirucalli. The later was poor in respect of proteins. Strong anti-oxidative activity of superoxide dismutase (E.C. 1.15.1.1) was detected in P. rubra and C. grandiflora latices, and to a lesser extent ascorbate peroxidase (E.C. 1.11.1.1) and isoforms of peroxidase were seen. Catalase (E.C. 1.11.1.6) was detected only in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Catalase; Chitinase; Cysteine proteinase; Latex; Peroxidase. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202010000100002 |
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| Mesquita,Alessandro Carlos; Oliveira,Luiz Edson Mota de; Mazzafera,Paulo; Delú-Filho,Nelson. |
| Rubber production is dependent on the availability of carbohydrates in the tissues engaged in latex synthesis. In this study three rubber tree clones were used to study the protein profile, the activities of invertase and sucrose synthase in the latex and anatomical characteristics of the bark, as well as to establish a possible relationship with latex production. The clones used in the study, RRIM 600, GT 1 and Fx2261, differed in latex productivity, from high to low in this order. Although present, few differences were observed in the latex protein profile obtained by denaturing electrophoresis. The activity of neutral invertase was higher than the acidic isoform, and both activities were higher in the most productive clones RRIM 600 and GT 1. The same... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hevea brasiliensis; Invertase; Lacticiferous vessels; Latex; Rubber; Sucrose synthase. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000200002 |
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| Omokhafe,K.O.; Alika,J.E.. |
| Eleven Hevea brasiliensis clones were evaluated for clonal stability of latex yield. A randomized complete block design was used with four replicates, two locations, seven years and three periods per year. Stability analysis was based on clone x year and clone x year x location interactions. Five stability parameters viz environmental variance, shukla's stability variance, regression of clonal latex yield on environmental index, variance due to regression and variance due to deviation from regression were applied. There was significant clone x environment effect at the two levels of interaction. Among the eleven clones, C 162 was outstanding for clonal stability and it can serve as donor parent for stability alleles. Three clones (C 76, C 150 and C 154)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hevea; Clones; Latex; Stability. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000300016 |
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| MORAES, V. H. de F.. |
| Os objetivos básicos deste segmento do Curso de Heveicultura são o de tornar clara a compreensão das razões fisiológicas de certo número de práticas de manejo e exploração da cultura e, desse modo, não apenas contribuir para melhor fixar a aprendizagem dessas práticas, como ajudar na avaliação dos limites da condições específicas, em cada caso, para mais eficiente aplicabilidade, ou na escolha lógica de soluções alternativas. O conhecimento que se pretende transmitir deverá servir também ao propósito da rejeição de conclusões incompativeis com a fisiologia da planta e, em contrapartida, ajudar a criatividade na formulação de novas soluções. |
| Tipo: Folhetos |
Palavras-chave: Fenologia; Fisiologia; Latex; Seringueira. |
| Ano: 1980 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/678156 |
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| ALBUQUERQUE, M. de; RAMOS, E. M. C.; GONÇALVES, W. M. F.; BARRIGA, J. P.; BARBOSA, W. C.; SILVA, D. de A. e.. |
| Ação do tucupi como coagulante do látex da seringueira estudada sob experimento em moldes estatísticos. Ficou comprovado que o tucupi, sob qualquer dos tratamentos a que foi submetido, cru ou cozido, branco ou amarelo, de cultivares mansas ou bravas, pode perfeitamente substituir o ácido acético nos seringais, não exercendo nenhum efeito depreciativo sobre a qualidade do látex coagulado. |
| Tipo: Folhetos |
Palavras-chave: Rubber tree; Coagulação; Latex; Seringueira; Tucupi; Coagulation. |
| Ano: 1975 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376677 |
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| Registros recuperados: 41 | |
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