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| Registros recuperados: 85 | |
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| Silva-Leite, Kaira Emanuella Sales da; Queiroz, Cinthia Silva; Madeira, Juliana da Costa; Soares, Pedro Marcos Gomes; Pereira, Maria Gonçalves; Assreuy, Ana Maria Sampaio. |
| Mimosa tenuiflora (Mimosaceae) or “jurema-preta” is well distributed in the northeast Brazil, being popularly used to treat skin lesions, burns and inflammation. The healing effect of the alcoholic extract prepared with its barks corroborates the popular use. This study aimed to evaluate the inflammatory response of polysaccharides extracted from M. tenuiflora barks (EP-Mt) by methanol/NaOH and ethanol precipitation. Inflammatory activity was assessed in rat models of acute inflammation (paw edema and peritonitis), by the following parameters: edema, vascular permeability, leukocyte migration, myeloperoxidase activity and pharmacological modulation of nitric oxide and prostaglandins. EP-Mt presented 3.8% yield, 41% carbohydrate and 0.34% protein. EP-Mt... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 2.00.00.00-6 e 2.10.00.00-0 Mimosaceae; Medicinal plant; Carbohydrate; Inflammation 2.10.06.00-8. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/32234 |
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| Messaoudi, Mohammed; Benreguieg, Mokhtar; Merah, Maroua; Messaoudi, Zakarya Ayoub. |
| Despite the presence of many antibiotics, bacterial resistance is growing steadily and some of these antibiotics have become ineffective, which poses a major challenge to the health sector. In this context, this work has demonstrated, in vitro, the inhibitory action of the bacterial growth resulting from methanolic and ethanolic extracts of Thymus algeriensis Boiss. & Reut., a medicinal plant species harvested from the Algerian South-west area, as well as the determination of the phenolic content of those crude extracts. The methanolic extract of Thymus algeriensis showed a significant antibacterial effect with 16.5 and 19 mm against Pseudomonas aeruginosa and Staphylococcus aureus, respectively. Klebsiella pneumoniae was not inhibited by both... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antibacterial effect; Extracts; Medicinal plant; Phenolic content; Thymus algeriensis.. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/48548 |
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| Malagodi-Braga, Kátia Sampaio; Moriconi, Waldemore; Queiroga, Joel Leandro de; Urchei, Mário Artemio; Pazianotto, Ricardo Antônio Almeida; Roncon, Kenny. |
| Trigona spinipes Fabricius (Apidae: Meliponini), is a common stingless bee widely seen in urban and rural areas in Brazil, popularly known as irapuá, arapuá or bee-dog. Although these bees are considered pollinators of some cultivated plants, they are better known for the damage they cause in different crops. During experimental agroecological cultivation of Artemisia (Artemisia annua Linn, Asteraceae), in Jaguariúna (SP, Brazil), stingless bees Trigona spinipes (Fabricius) were observed sucking phloem sap directly from the plant, a phenomenon not yet described in scientific literature. This study aimed to register and describe the phloem sap-sucking behavior performed by T. spinipes for the first time, as well as to assess the potential impact of this... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Medicinal plant; Insect behavior; Plant injury; Stingless bee Farming.. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/47548 |
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| Mirzabe, Amir Hossein; Taheri, Mojtaba; Pouyesh, Alireza; Bahrami Bavani, Neda. |
| The study was conducted to investigate some physical properties of celery seed at various moisture levels. The average length, width, thickness and 1000-seeds mass were 0.571, 0.429, 0.295 mm and 0.792 g, respectively, at moisture content of 5.24% (d.b). Length, width and thickness distributions of the seeds were modeled using Generalized Extreme Value, lognormal and Weibull distributions. Results showed that to model length of the seeds, lognormal distribution had the best performance while to model the width of the seeds Weibull distribution had the best performance. True density has increase from 892.02 to 931.42 kg/m3 when the moisture content increased from 5.24% to 20.25% (d.b). The angle of static friction increased from 28.45 to 39.66°, 25.15... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Image processing technique; Dimensional properties; Modeling; Gravimetrical properties; Medicinal plant. |
| Ano: 2016 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3559 |
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| BORGES,FLAVIO F.V.; MACHADO,THIAGO C.; CUNHA,KÊNYA S.; PEREIRA,KARLA C.; COSTA,ELSON A.; PAULA,JOSÉ R. DE; CHEN-CHEN,LEE. |
| Ethnobotanical surveys of Cerrado native plants show that leaves of Celtis iguanaea (Jacq.) Sargent (Cannabaceae), popularly known in Brazil as “esporão de galo”, are used in folk medicine for body pain, asthma, cramps, poor digestion, urinary infection, kidney dysfunctions, as well as a stimulant and diuretic. This work aimed at evaluating possible C. iguanaea aqueous leaf extract (CALE) cytotoxicity, genotoxicity, and antigenotoxicity using the mouse bone marrow micronucleous test. To assess CALE genotoxicity, Swiss mice were orally treated with three different extract concentrations (100, 300, and 500 mgkg−1). To evaluate its antigenotoxicity, the same doses were used simultaneously with a single i.p. dose of mitomycin C (MMC, 4mg.kg−1). The frequencies... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cytotoxicity; Genotoxicity; Mice; Medicinal plant. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000300955 |
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| Rossato,Liana V.; Tedesco,Solange B.; Laughinghouse IV,Haywood D.; Farias,Júlia G.; Nicoloso,Fernando T.. |
| We evaluated the antiproliferative effect of infusions from Pluchea sagittalis using the Allium cepa test. Infusions in three concentrations (2.5, 5, and 25 g dm-3) of leaves cultivated in three environments (in vitro, acclimatized growth chamber, and field) were used. Six onion bulbs were used for each of the eight treatments, and the mitotic index was obtained from 6000 cells per treatment. In conclusion, leaf infusions of P. sagittalis cultivated in the field have a high antiproliferative activity, as well as the cultivation system influences the antiproliferative potential. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antiproliferative effect; Camphorweed; Cell cycle; Medicinal plant; Mutagenicity. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000400007 |
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| SOUSA,WENDEL C. DE; T.S. PAZ,ANDRESSA; ROCHA,JAMIRA D.; CONCEIÇÃO,EDEMILSON C. DA; ALMEIDA,LUCIANE M. DE; CHEN,LEE C.; BORGES,LEONARDO L.; BAILÃO,ELISA F.L.C.. |
| ABSTRACT Costus spiralis is a Brazilian native plant used in popular medicine, but the safety of this therapeutic use needs investigation. So, the aim of this study was to evaluate the cytogenotoxic and antigenotoxic effects of C. spiralis leaves or stems aqueous extracts on Allium cepa root cells. Moreover, a phytochemical screening and an antioxidant and antifungal activities evaluation were performed. C. spiralis aqueous extracts presented cytotoxicity, but no mutagenicity was observed. When the antigenotoxicity was evaluated, C. spiralis leaves aqueous extract presented preventive and modulatory effects on A. cepa root cells, reducing the sodium azide cytogenotoxic effects. In contrast, C. spiralis stems aqueous extract enhanced the sodium azide... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allium cepa test; Antioxidant; Medicinal plant; Secondary metabolites. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401565 |
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| Freitas,Karine M. de; Almeida,Jacqueline M.; Monteiro,Juliana C.; Diamante,Maria Aparecida S.; Vale,Jéssica S.F. do; Camargo,Camila; Jorge,Marçal H.A.; Dolder,Heidi. |
| Cyclosporin A (CsA) is a widely employed immunosuppressive drug that is associated with several side effects, among then hepatotoxicity. Heteropterys tomentosais a Brazilian plant efficient in reducing damage caused by CsA on the rat testis and prostate. The aim of this study was to evaluate the effect of CsA and H. tomentosa(administered isolated or simultaneously) on the liver of Wistar rats. The animals were treated daily with water (control), CsA (15mg/kg/day), H. tomentosainfusion or CsA+H. tomentosa, for 21 or 56 days. The treatments did not alter liver morphology or cause fibrosis. H. tomentosaadministered for 21 days increased the number of hepatocyte nuclei and Kupffer cell volumetric proportion. After 56 days of treatment, H.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hepatotoxicity; Heteropterys aphrodisiaca; Medicinal plant; Phytotherapy; Hepatotoxicidade; Heteropterys aphro disiaca; Planta medicinal; Fitoterapia. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100369 |
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| MARIOT,ALEXANDRE; MANTOVANI,ADELAR; REIS,MAURÍCIO S. DOS. |
| Drimys brasiliensis Miers, locally known as cataia or casca-de-anta, is a native tree species of the Atlantic Rainforest. Its bark is harvested from natural populations. This study examined the recovery capacity of the bark of D. brasiliensis under different bark harvesting methods, as well as the influence of these approaches on its population dynamics and reproductive biology. While none of these treatments resulted in changes in phenological behavior or the rate of increase of diameter at breast height and tree height, the removal of wider bark strips resulted in lower rates of bark recovery and higher rates of insect attack and diseases. Accordingly, the results recommend using strips of bark 2 cm wide and 2 m long, with 4 cm between strips, for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bark harvesting; Medicinal plant; Sustainable management; Drimys brasiliensis; Insect attack. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301315 |
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| LACERDA,LOURRAN P.; MALAQUIAS,GEIZ; PERON,ANA PAULA. |
| In this study we evaluated the action of crude aqueous extracts obtained from rhytidome of Hymenaea stigonocarpa (jatobá-do-cerrado) on Allium cepa meristematic root cells in three concentrations: 0.082, 0.164, 0.328g/mL, at exposure times of 24 and 48 h. The slides were prepared by the crushing technique, and cells analyzed throughout the cell cycle, totaling 5000 for each control group and concentration. It was found that all three concentrations, including the lowest which is considered ideal for use, in all exposure times, had significant antiproliferative action on the cell cycle of this test system. For cells under division, we observed a high number of cells in prophase. Therefore, under the conditions studied H. stigonocarpa indicated to be... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allium cepa; Cellular division; Cells in prophase; Medicinal plant. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301147 |
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| PEREIRA,FLAVIANE G.; MARQUETE,RONALDO; DOMINGOS,LEVY T.; ROCHA,MARCO E.N.; FERREIRA-PEREIRA,ANTONIO; MANSUR,ELISABETH; MOREIRA,DAVYSON L.. |
| ABSTRACT Casearia genus (Salicaceae) is found in sub-tropical and tropical regions of the world and comprises about 160-200 species. It is a medicinal plant used in South America, also known as “guaçatonga”, “erva-de-tiú”, “cafezinho-do-mato”. In Brazil, there are about 48 species and 12 are registered in the State of Rio de Janeiro, including Casearia sylvestris Sw. There are many studies related to the chemical profile and cytotoxic activities of extracts from these plants, although few studies about the antifungal potential of the essential oil have been reported. In this work, we have studied the antifungal properties of the essential oil of C. sylvestris leaves, as well as of their fractions, against four yeasts (Saccharomyces cerevisae, Candida... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Candida sp.; Casearia genus; Essential oil; Medicinal plant; Saccharomyces cerevisae.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000602817 |
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| BARBOSA,JULIERME Z.; MOTTA,ANTONIO C. V.; CONSALTER,RANGEL; POGGERE,GIOVANA C.; SANTIN,DELMAR; WENDLING,IVAR. |
| ABSTRACT Native to subtropical region of South America, yerba mate is responsive to P under some conditions, but the degree of influence of genetic and soil on the growth and composition of the leaf is unknown. The aim of study was to evaluate plant growth, nutrients and potentially toxic elements in leaves of yerba mate clones in response to P application in acid soils. In greenhouse condition, two yerba mate clone seedlings were grown (210 days) in pots, each clone in a completely randomized design in factorial scheme (with and without P; four acid soils). The elemental composition of leaves and the growth of plants were determined. Phosphorus promoted plant growth, but this was not accompanied by increased P in leaf tissue in all conditions tested. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ilex paraguariensis St.Hil; Medicinal plant; Metal accumulation; Soil fertility; Trace elements.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000100557 |
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| AGRA,ISABELA K.R.; PIRES,LUANA L.S.; CARVALHO,PAULO S.M.; SILVA-FILHO,EURÍPEDES A.; SMANIOTTO,SALETE; BARRETO,EMILIANO. |
| The decoction of the stem barks from Bowdichia virgilioides KUNTH is a folk remedy used to treat inflammatory disorders in Latin American and Brazil. In the present study, the wound healing activity of aqueous extract of the stem bark from B. virgilioides, called AEBv, was evaluated by the rate of healing by wound contraction and period of epithelization at different days post-wound using the wound excisional model. On day 9, the AEBv-treated animals exhibited significative reduction in the wound area when compared with controls. In wound infected with S. aureus, the AEBv significantly improved the wound contraction when compared to the saline-treated mice. The histological analysis showed that AEBv induced a collagen deposition, increase in the fibroblast... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Wound healing; Antimicrobial effect; Bowdichia virgilioides; Medicinal plant. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000300945 |
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| Cola-Miranda,Maira; Barbastefano,Victor; Hiruma-Lima,Clélia Akiko; Calvo,Tamara Regina; Vilegas,Wagner; Brito,Alba Regina Monteiro Souza. |
| The genus Indigofera (Fabaceae) is used in folk medicine to treat gastrointestinal pain. In this study, we investigated the antiulcerogenic properties of Indigofera truxillensis Kunth. Oral administration of MeOH extract did not produce any signals of acute toxicity. The antiulcerogenic activity was assessed in different models of acute gastric ulcers (100% ethanol, piroxicam 30 mg.kg-1, hypothermic restraint stress and pylorus ligature) in mice and rats. The animals were treated with the drugs lanzoprazole (30 mg.kg-1) or cimetidine (100 mg.kg-1) as positive controls depending on the performed model. In another experiment with ethanol-induced ulcers in rats, N-ethylmaleimide (NEM), a sulfhydryl group blocker, was also used. The MeOH extract, at doses of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antiulcerogenic activity; Fabaceae; Indigofera truxillensis Kunth; Medicinal plant; Phenolic compounds. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032006000300004 |
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| Registros recuperados: 85 | |
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