26 results on '"Nunes, Roberta"'
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2. Neuroinflammation and hypersensitivity evidenced by the acute and 28-day repeated dose toxicity tests of ostrich oil in mice
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Santin, Jose Roberto, Kopp, Mainara Adriane Tesser, Correa, Thiago Patrício, Melato, Jéssica, Benvenutti, Larissa, Nunes, Roberta, Goldoni, Fernanda Capitanio, Patel, Yasmin Beatrisse Klein, de Souza, Jade André, Soczek, Suzany Hellen da Silva, Fernandes, Elizabeth Soares, Pastor, Maria Verônica Dávila, Klein Junior, Luiz Carlos, Apel, Miriam Anders, Henriques, Amélia Teresinha, and Quintão, Nara Lins Meira
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- 2023
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3. Involvement of a neutrophil-mast cell axis in the effects of Piper malacophyllum (C. PESL) C. DC extract and its isolated compounds in a mouse model of dysmenorrhoea
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Quintão, Nara Lins Meira, Reis, Jaqueline Pavesi, Benvenutti, Larissa, Nunes, Roberta, Goldoni, Fernanda Capitanio, Cozer, Manuela Somensi, de Souza, Priscila, de Cássia Melo Vilhena de Andrade Fonseca da Silva, Rita, Melato, Jessica, Vaz, Carlos Rafael, Whitaker, Juliana Cristina Pereira, Jesuíno, Flavia Werner, Costa, Mariana Couto, Pastor, Maria Verônica Dávila, Malheiros, Angela, Meyre-Silva, Christiane, and Santin, José Roberto
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- 2022
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4. An overview on surfactants as pollutants of concern: Occurrence, impacts and persulfate-based remediation technologies
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Nunes, Roberta Frinhani and Teixeira, Antonio Carlos Silva Costa
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- 2022
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5. UV/Sodium percarbonate for bisphenol A treatment in water: Impact of water quality parameters on the formation of reactive radicals
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Gao, Jiong, Nunes, Roberta Frinhani, O'Shea, Kevin, Saylor, Greg L., Bu, Lingjun, Kang, Yu-Gyeong, Duan, Xiaodi, Dionysiou, Dionysios D., and Luo, Shenglian
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- 2022
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6. Dodecylpyridinium chloride removal by persulfate activation using UVA radiation or temperature: experimental design and kinetic modeling
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Nunes, Roberta Frinhani, Metolina, Patrícia, and Teixeira, Antonio Carlos Silva Costa
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- 2021
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7. Response surface methodology (RSM) to evaluate both the extraction of triterpenes and sterols from jackfruit seed with supercritical CO2 and the biological activity of the extracts
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Tramontin, Deise, Cadena-Carrera, Santiago Esmiro, Assreuy, Jamil, Nunes, Roberta, Santin, José Roberto, Bolzan, Ariovaldo, and Quadri, Marintho
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- 2021
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8. Effect of the metanolic extract from the leaves of Garcinia humilis Vahl (Clusiaceae) on acute inflammation
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Nunes, Roberta, Broering, Milena Fronza, De Faveri, Renata, Goldoni, Fernanda Capitanio, Mariano, Luisa Nathália Bolda, Mafessoli, Pamela Cecília Müller, Delle Monache, Franco, Cechinel Filho, Valdir, Niero, Rivaldo, Santin, José Roberto, and Quintão, Nara Lins Meira
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- 2021
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9. Effects of 2′,6′-dihydroxy-4′-methoxydihidrochalcone on innate inflammatory response
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Cerutti, Murilo Luiz, Benvenutti, Larissa, Nunes, Roberta, da Silva, Silvia Ramos, Barauna, Sara Cristiane, de Souza, Márcia Maria, Malheiros, Ângela, Lacava, Letícia, Quintão, Nara Lins Meira, and Santin, José Roberto
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- 2020
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10. Synthetic chalcones as potential tool for acute- and chronic-pain control
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Rocha, Lilian W., Sonza, Daniele R., Broering, Milena Fronza, Nunes, Roberta, de Campos-Buzzi, Fátima, Corrêa, Rogério, Silva, Rangel L., Cunha, Thiago M., Santin, José Roberto, and Quintão, Nara L.M.
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- 2018
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11. Chapter 16 - Use of agro-energy waste: some current technologies
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Nunes, Roberta Samara Barros and Serra, Juan Carlos Valdés
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- 2024
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12. Análise de prescrições destinadas ao emagrecimento em farmácia magistral antes e após a vigência da RDC Nº 52/2011
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Hanan JUMAH EID AHMAH LAILA, Ana Paula SIMÕES MENEZES, Marisa Fernanda da SILVA NUNES, Roberta NUNES HORTA, and Ana Carolina ZAGO
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Obesidade ,Farmacoterapia ,Anorexígenos ,Prescrições ,Medicine ,Pharmacy and materia medica ,RS1-441 - Abstract
O objetivo deste estudo foi avaliar o perfil de prescrições destinadas ao emagrecimento em uma farmácia de manipulação no município de Pelotas – RS, antes e após a vigência da RDC nº 52/2011. Para isso, foram analisados todos os receituários de controle especial contendo medicamentos anorexígenos entre os meses de janeiro a dezembro de 2010 e 2012. Os resultados obtidos demonstraram que o sexo feminino continua sendo o gênero que mais consome esses medicamentos tanto em 2010 quanto em 2012. No ano de 2010, os anorexígenos mais prescritos foram respectivamente anfepramona (68,7%), femproporex (26,2%), mazindol (2,7%) e sibutramina (2,4%), sendo os médicos da especialidade Clinica Geral aqueles que mais prescreveram em ambos os períodos avaliados.. Em 2012, foi observado um considerável aumento da prescrição de medicamento contendo o fármaco sibutramina. Entretanto, a vigência da RDC nº 52/2011 foi eficaz ao promover a redução da prescrição de anorexígenos e verifica-se a importância de Atos Regulatórios por parte das autoridades sanitárias, normatizando o uso racional de medicamentos.
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- 2013
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13. List of contributors
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Afferri, Flávio Sérgio, Almeida, Manuel Fonseca, Alvim-Ferraz, Maria Conceição, Archangelo, Eliane Regina, Avila Quiñones, Cristian Orlando, Bailón-García, Esther, Barbaresi, Alberto, Bovo, Marco, Caltzontzin-Rabell, Valeria, Carrasco-Marín, Francisco, Carreiro, Solange Cristina, Casciatori, Fernanda Perpétua, Coelho, Marina Póvoa Pontes, Collicchio, Erich, Costa, Emanuel, da Luz, Raiana Batista, da Silva Ramos, Nádia, de Moura Andrade, André, de Oliveira, Nilton Marques, de Siqueira, Flávia Lucila Tonani, de Siqueira, Guilherme Benko, de Sousa Ferraz, Fabriele, Dias, Ana Caroline Pereira, Dias, Joana Maia, Díaz Cachay, Pedro Antonio, Diniz Da Silva, Mirella Pessoa, Dos Santos, Domingos Bonfim Ribeiro, Duran Hernandez, Zulma Lorena, Erasmo, Eduardo Andrea Lemus, Faleiro, Jordana Kran, Gomes De Castro, Antônio Maria, Gonçalves, Flavia Barreira, Grajales, Lina María, Guarda, Emerson Adriano, Guarda, Patricia Martins, Gutiérrez-Antonio, Claudia, Hernández, Salvador, Jorge, Vanessa Silveira, Lara-Montaño, Oscar Daniel, Letti, Luiz Alberto Júnior, Lima, Suzana Maria Valle, Lopes, Rodrigo Barbosa Sellos, Martínez-Guido, Sergio Iván, Moral-Rodríguez, Adriana Isabel, Moreira Rodrigues, Rita de Cássia, Moreno, Carlos Julio, Nunes, Roberta Samara Barros, Oliveira, João Victor Gomes, Orrego Alzate, Carlos Eduardo, Ortiz, Danny Leandro, Pelúzio, Joênes Mucci, Pérez-Cadenas, Agustín Francisco, Ramírez-Valencia, Lilian Daniela, Restrepo, Ali David Cifuentes, Rodriguez Restrepo, Yeimy Alejandra, Rojas Araque, Elva Nelly, Romero-Izquierdo, Araceli Guadalupe, Santolini, Enrica, Santos, Elisângela Fernandes dos, Serra, Juan Carlos Valdés, Sousa, Illys Janes Alves, Souza, Olíria Morgana Menezes, Tassinari, Patrizia, Thoméo, João Cláudio, Torreggiani, Daniele, Valdrez, Inês, Vieira, Gláucia Eliza Gama, Zavarize, Danilo Gualberto, and Zukowski Junior, Joel Carlos
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- 2024
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14. Antigenotoxicity and Antioxidant Activity of Acerola Fruit (Malpighia glabra L.) at Two Stages of Ripeness
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da Silva Nunes, Roberta, Kahl, Vivian Francília Silva, da Silva Sarmento, Merielen, Richter, Marc François, Costa-Lotufo, Letícia Veras, Rodrigues, Felipe Augusto Rocha, Abin-Carriquiry, Juan Andres, Martinez, Marcela María, Ferronatto, Scharline, de Barros Falcão Ferraz, Alexandre, and da Silva, Juliana
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- 2011
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15. Genotoxic and Antigenotoxic Activity of Acerola (Malpighia glabra L.) Extract in Relation to the Geographic Origin
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Da Silva Nunes, Roberta, Kahl, Vivian Francília Silva, Da Silva Sarmento, Merielen, Richter, Marc François, Abin-Carriquiry, Juan Andres, Martinez, Marcela María, De Barros Falcão Ferraz, Alexandre, and Da Silva, Juliana
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- 2013
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16. The role of kinins in the proliferation of fibroblast primed with TNF in scratch wound assay: Kinins and cell proliferation
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França, Ana Julia Von Borell du Vernay, De Faveri, Renata, Nunes, Roberta, Steimbach, Viviane Miranda Bispo, Santin, José Roberto, and Quintão, Nara Lins Meira
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- 2018
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17. Anti-Inflammatory and Healing Activity of the Hydroalcoholic Fruit Extract of Solanum diploconos (Mart.) Bohs.
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Benvenutti, Larissa, Nunes, Roberta, Venturi, Ivonilce, Ramos, Silvia Aparecida, Broering, Milena Fronza, Goldoni, Fernanda Capitanio, Pavan, Sarah Eskelsen, Pastor, Maria Verônica Dávila, Malheiros, Angela, Quintão, Nara Lins Meira, Fernandes, Elizabeth Soares, and Santin, José Roberto
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FRUIT extracts , *HEALING , *LABORATORY mice , *SOLANUM , *GINGER , *INFLAMMATORY mediators , *FIBROBLASTS , *WOUND healing , *BIOLOGICAL models , *POLYSACCHARIDES , *ANTI-inflammatory agents , *INFLAMMATION , *CELL physiology , *PLANTS , *NEUTROPHILS , *RATS , *FRUIT , *TOXICITY testing , *PLANT extracts , *MICE , *ANIMALS , *PHARMACODYNAMICS ,THERAPEUTIC use of plant extracts - Abstract
Background: Solanum diploconos (Mart.) Bohs is a native Brazilian plant belonging to the Solanaceae family, popularly known as "tomatinho do mato" and poorly investigated. Herein, we presented for the first time evidence for the anti-inflammatory and wound healing activities of S. diploconos fruit hydroalcoholic extract. Material and Methods. In vitro fMLP-induced chemotaxis, LPS-induced inflammatory mediator levels (cytokines by ELISA and NO release by Griess reaction), and adhesion molecule expression (CD62L, CD49d, and CD18, by flow-cytometry) were assessed in neutrophils treated with different concentrations of the extract. Inflammation resolution was measured by the efferocytosis assay and the healing activity by in vivo and in vitro assays. The air pouch model of carrageenan-induced inflammation in Swiss mice was used to investigate the in vivo anti-inflammatory effects of the extract. Leukocyte influx (by optical microscopy) and cytokine release were quantified in the pouch exudates. Additionally, the acute and subacute toxic and genotoxic effects of the extract were evaluated.Results: In vitro, the extract impaired neutrophil chemotaxis and its ability to produce and/or release cytokines (TNFα, IL-1β, and IL-6) and NO upon LPS stimuli (p < 0.01). LPS-treated neutrophils incubated with the extract presented increased CD62L expression (p < 0.01), indicating a reduced activation. An enhanced efferocytosis of apoptotic neutrophils by macrophages was observed and accompanied by higher IL-10 and decreased TNFα secretion (p < 0.01). In vivo, similar results were noted, including reduction of neutrophil migration, protein exudation, and cytokine release (p < 0.01). Also, the extract increased fibroblast proliferation and promoted skin wound healing (p < 0.01). No signs of toxicity or genotoxicity were observed for the extract.Conclusion: S. diploconos fruit extract is anti-inflammatory by modulating neutrophil migration/activation as well macrophage-dependent efferocytosis and inflammatory mediator release. It also indicates its potential use as a healing agent. Finally, the absence of acute toxic and genotoxic effects reinforces its possible use as medicinal product. [ABSTRACT FROM AUTHOR]- Published
- 2021
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18. Use of Buccal Micronucleus Assay to Determine Mutagenicity Induced by Amfepramone in Humans and the Protective Effects of Vitamin C.
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Silva Nunes, Marisa Fernanda da, da Silva Nunes, Roberta, Silva Kahl, Vívian Francília, Moysés Reyes, Juliana, and da Silva, Juliana
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NUCLEOLUS , *BIOCHEMICAL genetics , *WATER-soluble vitamins , *PHOTOSYNTHETIC oxygen evolution , *MUTAGENICITY testing , *GENETIC mutation , *VITAMIN C - Abstract
The abusive use of amfepramone in Brazilian population has grown in recent years. Few studies have been conducted on amphetamine with respect to DNA damage, and there have been no apparent investigations examining the influence of amfepramone on humans. The aim of this study was to determine the possible mutagenic actions of amfepramone on humans using the micronucleus (MN) assay with buccal cells and the effects of supplementation with vitamin C as a potential protective agent. The study included 108 females with 52 as control and 56 taking amfepramone at 120 mg/d for at least the whole previous month. All women were intentionally selected to be nonsmokers and nondrinkers. After 30 d of amfepramone women were given amfepramone plus vitamin C use at 1000 mg/d for another month. Results showed a marked increase in the number of MN in amfepramone users in both basal and differentiated cells, indicating a mutagenic action. After vitamin C supplementation, a significant decrease in the frequency of MN and apoptosis was observed. Evidence indicates that the main mechanism of action of amfepramone in inducing DNA damage occurs through formation of reactive oxygen species (ROS), intercalation and topoisomerase binding, attributed to the presence of anN-dialkyl group. In addition, data demonstrated that vitamin C effectively inhibited amfepramone-induced DNA damage. [ABSTRACT FROM PUBLISHER]
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- 2013
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19. Antigenotoxicity and Antioxidant Activity of Acerola Fruit ( Malpighia glabra L.) at Two Stages of Ripeness.
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Silva Nunes, Roberta, Kahl, Vivian, Silva Sarmento, Merielen, Richter, Marc, Costa-Lotufo, Letícia, Rodrigues, Felipe, Abin-Carriquiry, Juan, Martinez, Marcela, Ferronatto, Scharline, Barros Falcão Ferraz, Alexandre, and Silva, Juliana
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FRUIT research ,ANTIOXIDANTS ,GENETIC toxicology ,CELL-mediated cytotoxicity ,OXIDATIVE stress - Abstract
Genotoxic and antigenotoxic effects of acerola fruit at two stages of ripeness were investigated using mice blood cells. The results show that no ripeness stage of acerola extracts presented any genotoxic potential to damage DNA (Comet assay) or cytotoxicity (MTT assay). When antigenotoxic activity was analyzed, unripe fruit presented higher DNA protection than ripe fruit (red color) extract. The antioxidant capacity of substances also showed that unripe samples inhibit the free radical DPPH more significantly than the ripe ones. The results about determination of compounds made using HPLC showed that unripe acerola presents higher levels of vitamin C as compared to ripe acerola. Thus, vitamin C and the complex mixture of nutrients of Malpighia glabra L., and especially its ripeness stages, influenced the interaction of the fruit extract with the DNA. Acerola is usually consumed when ripe (red fruit), although it is the green fruit (unripe) that has higher potential as beneficial to DNA, protecting it against oxidative stress. [ABSTRACT FROM AUTHOR]
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- 2011
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20. Effects of Tithonia diversifolia (Asteraceae) extract on innate inflammatory responses.
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Broering, Milena Fronza, Nunes, Roberta, De Faveri, Renata, De Faveri, Aline, Melato, Jéssica, Correa, Thiago Patricio, Vieira, Maria Eduarda, Malheiros, Angela, Meira Quintão, Nara Lins, and Santin, José Roberto
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ALLERGIES , *ANIMAL experimentation , *ANTI-inflammatory agents , *CYTOKINES , *ENZYME-linked immunosorbent assay , *ETHANOL , *FLOW cytometry , *HISTOLOGICAL techniques , *INFLAMMATION , *INTERLEUKINS , *LEAVES , *LEUCOCYTES , *MICE , *NEUTROPHILS , *POLYSACCHARIDES , *PROTEINS , *TUMOR necrosis factors , *TREATMENT effectiveness , *IN vitro studies , *IN vivo studies , *PHARMACODYNAMICS , *THERAPEUTICS - Abstract
Tithonia diversifolia (Helms.) A. Gray, popularly known in Brazil as "margaridão" or "mão-de-Deus" has been used in the folk medicine as anti-inflammatory and against other illnesses in several countries. Indeed, many studies show de effect of T. diversifolia in the inflammatory process, however, any of them have demonstrated the mechanism of cell migration. The aim of this investigation was to show the in vivo and in vitro effects of T. diversifolia leaves ethanol extract on neutrophil trafficking from the blood to the inflamed tissue and on cell-derived secretion of chemical mediators, as well as, the effects on inflammatory resolution and inflammatory pain. Anti-inflammatory activity was investigated using carrageenan-induced inflammation in the subcutaneous tissue of male Swiss mice orally treated with the T. diversifolia extract (0.1, 1 or 3 mg/kg). The leukocyte influx (optical microscopy) and the secretion of chemical mediators (TNF, IL-6, IL-1β and CXCL1, by enzyme-linked immunosorbent assay) were quantified in the inflamed exudate. Histological analysis of the pouches was performed. N-Formyl-methionine-leucine-phenylalanine-induced chemotaxis, lipopolysaccharide-induced TNF, IL-6, IL-1β, CXCL1 and NO production, and adhesion molecule expression (CD62L and CD18, flow cytometry) were in vitro quantified using oyster glycogen recruited peritoneal neutrophils previous treated with the extract (1, 10, or 100 μg/mL). The resolution of inflammation was accessed by efferocytosis assay, and the antinociceptive activity was investigated using carrageenan-induced mechanical hypersensitivity. The oral treatment with T. diversifolia promoted reduction in the neutrophil migration as well as the decrease in total protein, TNF, IL-1β and CXCL1 levels in the inflamed exudate. In vitro treatment with T. diversifolia shedding of β2 integrin expressions, without alter CD62L expression. The extract was able to increase the efferocytosis of apoptotic neutrophils, and the increase of the IL-10 and the decrease of TNF secretion. Additionally, the extract reduced the hypersensitivity induced by carrageenan. Together, the data herein obtained showed that T. diversifolia extract presented anti-inflammatory activity by inhibiting the cytokine and NO production, and also the leukocyte migration. The mechanisms involved in the extract anti-inflammatory effects include the impairment in the leukocyte migration to the inflamed tissue, the pro-resolution activity, and consequently the anti-hypersensitivity. Image 1 [ABSTRACT FROM AUTHOR]
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- 2019
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21. Tagetes erecta L.: A traditional medicine effective in inflammatory process treatment.
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Vaz, Carlos Rafael, Benvenutti, Larissa, Goldoni, Fernanda Capitânio, Nunes, Roberta, Schneiker, Gustavo Santin, Rosa, Gabriel Antunes, Furtado, Keyla, Garcia, Louise, Quintão, Nara Lins Meira, and Santin, José Roberto
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ANTI-inflammatory agents , *IN vitro studies , *FLOW cytometry , *TRADITIONAL medicine , *MACROPHAGES , *NITRIC oxide , *NEUTROPHILS , *ENZYME-linked immunosorbent assay , *CELL adhesion molecules , *CELL physiology , *FLOWERS , *PLANT extracts , *MICE , *MEDICINAL plants , *ANIMAL experimentation , *INFLAMMATION , *CYTOKINES , *TUMOR necrosis factors , *PHAGOCYTOSIS , *INTERLEUKINS - Abstract
Tagetes erecta L. (Asteraceae), popularly known as Aztec Marigold, is used in folk medicine to treat several ailments including inflammatory processes. Despite its historical use, the specific mechanisms through which it may modulate inflammation, particularly its effects on neutrophils and macrophages activation, have not yet been completely investigated. This study aimed to elucidate the anti-inflammatory mechanism of the hydroalcoholic extract obtained from T. erecta flowers, focusing on its role in the regulation of neutrophil and macrophage functions. The production of TNF, IL-6, CXCL-1, IL-1β, IL-10 (ELISA) and NO (Griess reaction), adhesion molecule expression (CD62L, CD49d and CD18, flow cytometry), and chemotaxis were analyzed in vitro using oyster glycogen-recruited peritoneal neutrophils or macrophages (RAW 264.7) stimulated with lipopolysaccharide (LPS) and treated with the extract (1, 10 or 100 μg/mL). The resolution of inflammation was accessed by efferocytosis assay. The in vivo anti-inflammatory activity was investigated using carrageenan-induced inflammation in the subcutaneous tissue of male Swiss mice orally treated with the T. erecta extract (30, 100 or 300 mg/kg). The leukocyte influx (optical microscopy), secretion of chemical mediators (TNF, IL-6 and IL-1β, ELISA) and protein exudation (Bradford reaction) were quantified in the inflamed exudate. In vitro studies demonstrated that the extract inhibited neutrophil chemotaxis and reduced the production and/or release of cytokines (TNF, IL-1β, CXCL1, and IL-6) as well as nitric oxide (NO) by neutrophils and macrophages when stimulated with LPS. Neutrophils treated with LPS and incubated with the extract showed an increase in CD62L expression, which leads to the impairment of neutrophil adhesion. The extract also enhanced efferocytosis of apoptotic neutrophils by macrophages, which was accompanied by increased IL-10 secretion and decreased TNF levels. In vivo studies yielded similar results, showing reduction in neutrophil migration, protein exudation, and cytokine release (TNF, IL-6, and IL-1β). Together, the data herein obtained shows that T. erecta flower extract has anti-inflammatory effects by regulating inflammatory mediators, limiting neutrophil migration, and promoting efferocytosis. The in vivo results suggest that an herbal medicine made with T. erecta could represent an interesting pharmacological tool for the treatment of acute inflammatory condition. [Display omitted] [ABSTRACT FROM AUTHOR]
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- 2024
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22. Effects of Eugenia umbelliflora O. Berg (Myrtaceae)-leaf extract on inflammation and hypersensitivity.
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Goldoni, Fernanda Capitânio, Barretta, Claiza, Nunes, Roberta, Broering, Milena Fronza, De Faveri, Renata, Molleri, Heloisa Tachini, Corrêa, Thiago Patrício, Farias, Ingrid Vicente, Amorin, Clarissa Krieger, Pastor, Maria Veronica Davila, Meyre-Silva, Christiane, Bresolin, Tania Mari Belle, de Freitas, Rilton Alves, Quintão, Nara Lins Meira, and Santin, José Roberto
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ALLERGIES , *ANIMAL experimentation , *ANTI-inflammatory agents , *ANTIOXIDANTS , *BIOLOGICAL assay , *BIOLOGICAL models , *CELL motility , *CYTOKINES , *HIGH performance liquid chromatography , *HISTOLOGY , *HUMAN locomotion , *INFLAMMATION , *LEAVES , *LEUCOCYTES , *MEDICINAL plants , *METHANOL , *MICE , *PLANT extracts , *TREATMENT effectiveness , *IN vitro studies , *IN vivo studies - Abstract
The leaves of Eugenia species are widely used in popular medicine to treat several diseases, such as arthritis, rheumatism and diabetes. Eugenia umbelliflora O. Berg is popularly known in Brazil as "baguaçu", name also conferred to Eugenia jambolana probably due to their apparent similarity. Although the popular use scientifically proved of E. jambolana as anti-diabetes and also as anti-inflammatory, there are only two scientific studies demonstrating anti-ulcer and bactericide activities of E. umbelliflora leaves extract, without reference to its possible anti-inflammatory activity. The aim of this study was to show the anti-oxidant and anti-inflammatory activity of the methanol extract obtained from E. umbelliflora leaves (EuL) using in vitro and in vivo protocols. The total phenolic content was evaluated using the folin-Ciocalteu colorimetric method and phloroglucinols content by HPLC. The anti-oxidant activity was evaluated by ORAC, ABTS•+, DPPH, and metal chelation methods. The anti-inflammatory activity was investigated using carrageenan-induced inflammation in the subcutaneous tissue of male Swiss mice orally pre-treated with the EuL (0.3, 1 or 3 mg/kg). The leukocyte influx (optical microscopy) and secretion of chemical mediators (TNF, IL-6, IL-1β and CXCL1, by enzyme-linked immunosorbent assay) were quantified in the inflamed exudate. Histological analysis of the pouches was also performed. The anti-hypersensitive activity was investigated using carrageenan-induced mechanical hypersensitivity and mice were then evaluated using the von Frey filaments. The Open Field test was used to evaluate possible interference of adverse effect of EuL on locomotor activity that could lead to misinterpretation of the hypersensitivity evaluation. The EuL demonstrated important and moderate reducing capacity on ABTS•+ and DPPH assays, respectively, but with slight activity in ORAC test. It reflects low protection against cell damage. The EuL also presented 30% of phenolic compounds. The phloroglucinols content of EuL was 25.9 mg/g, 18.4 mg/g and 16.6 mg/g of eugenial C, eugenial D and eugenial E, respectively. The in vivo analysis of the inflammatory exudate of EuL-treated mice demonstrated reduction in the polymorphonuclear cells (PMN) migration to the inflamed tissue, as well as the reduction of the pro-inflammatory cytokine IL-1β. Histologically, it was observed evident decrease in the oedema, formed essentially by non-haemorrhagic fibrin exudate, as well as PMN infiltrate, when compared with control mice injected with carrageenan. Furthermore, the extract also presented effective reduction of the mechanical hypersensitivity induced by carrageenan without any interference in animal's locomotor and exploratory activity. Together, the results herein obtained show that EuL presented anti-inflammatory activity by decreasing the influx of PMN to the inflamed tissue, as well as the cytokine IL-1β level. This anti-inflammatory activity was also accompanied by significant anti-hypersensitive effect. The effects presented by EuL seem not to be correlated with an antioxidant activity. However other extract chemical compounds could be responsible for its important anti-inflammatory effects. Image 1 [ABSTRACT FROM AUTHOR]
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- 2019
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23. Sambucus nigra: A traditional medicine effective in reducing inflammation in mice.
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Santin, José Roberto, Benvenutti, Larissa, Broering, Milena Fronza, Nunes, Roberta, Goldoni, Fernanda Capitanio, Patel, Yasmin Beatrisse Klein, de Souza, Jade André, Kopp, Mainara Adriane Tesser, de Souza, Priscila, da Silva, Rita de Cássia Vilhena, Pastor, Maria Verônica Dávila, de Souza, Angelita Boldieri, Testoni, Letícia Debatin, Couto, Angélica Garcia, Bresolin, Tania Mari Belle, and Quintão, Nara Lins Meira
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IN vitro studies , *SMOOTH muscle , *IN vivo studies , *ANTI-inflammatory agents , *ANIMAL experimentation , *TREATMENT effectiveness , *MYOSITIS , *PLANT extracts , *MICE - Abstract
Sambucus nigra L. is a plant of European origin and popularly known as elder, elderberry, black elder, European elder, European elderberry, and European black elderberry, being described in pharmacopoeia of several countries. Its flowers and berries have been used in folk medicine to treat feverish conditions, coughing, nasal congestion, and influenza besides its popular use as anti-inflammatory, analgesic, and diuretic agent. The aim of this investigation was to elucidate the anti-inflammatory and the relaxant effect of the lyophilized aqueous extract obtained from S. nigra 's flowers on in vivo and in vitro inflammation assays and on the isolated rat vascular and airway smooth muscle tissue. The anti-inflammatory activity of the extract was investigated using carrageenan-induced inflammation model in the subcutaneous tissue of male Swiss mice orally treated with S. nigra extract (30, 100, 300 or 600 mg/kg). Leukocyte influx and the secretion of chemical mediators were quantified in the inflamed exudate. Additionally, histological analysis of the pouches was performed. N-Formyl-methionine-leucine-phenylalanine-induced chemotaxis, lipopolysaccharide-induced TNF, IL-6, IL-1β, IL-10 and NO production, and adhesion molecule expression (CD62L, CD49d and CD18, flow cytometry) were analyzed in vitro using oyster glycogen-recruited peritoneal neutrophils or macrophages (RAW 264.7) stimulated with LPS and treated with the extract (1, 10 or 100 μg/mL). The resolution of inflammation was accessed by efferocytosis assay, and the antinociceptive activity was investigated using carrageenan-induced mechanical hypersensitivity. Finally, the effect of the extract was evaluated in isolated rat aorta and trachea rings. The oral treatment with S. nigra promoted reduction in the neutrophil migration as well as the decrease of TNF, IL-1β and IL-6 levels in the inflamed exudate. In vitro treatment with S. nigra decreased NO 2 −, TNF, IL-1β and IL-6 and promoted increase of IL-10 in LPS-stimulated neutrophils. Similarly, the extract reduced the NO 2 −, TNF and IL-6 in LPS-stimulated macrophages. Rutin, the major constituent of S. nigra extract reduced NO 2 −, TNF, IL-1β, and IL-6 and promoted the increase of IL-10 in LPS-stimulated neutrophils supernatant. The extract also shed CD62L and CD18 expressions. The extract was able to increase the efferocytosis of apoptotic neutrophils by increasing the IL-10 and decreasing the TNF levels. Additionally, the extract reduced the hypersensitivity induced by carrageenan and promoted a relaxant effect in isolated vascular and non-vascular rat tissue. S. nigra flowers extract presents anti-inflammatory effect by modulating macrophage and neutrophil functions including the production of inflammatory mediators and cell migration, by promoting efferocytosis and consequently the resolution of acute inflammation, besides exerting antinociceptive effects, scientifically proving its popular use as medicinal plant. Allied to the relaxant effect in both vascular and non-vascular smooth muscle tissue, S. nigra extract represents an important tool for the management of acute inflammation. [Display omitted] [ABSTRACT FROM AUTHOR]
- Published
- 2022
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24. Toxicological and anti-inflammatory profile of Synadenium grantii Hook. f. in mice.
- Author
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de Souza, Jade André, Patel, Yasmin Beatrisse Klein, Grockoski, Heloise Adeli, Nunes, Roberta, Ramos, Silvia Aparecida, Pastor, Maria Verônica Dávila, Stoeberl, Luis Carlos, Campos, Adriana, Cechinel Filho, Valdir, Santin, José Roberto, and Quintão, Nara Lins Meira
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ANIMAL experimentation , *ANTI-inflammatory agents , *CYTOKINES , *ENZYME-linked immunosorbent assay , *INFLAMMATORY mediators , *INTERLEUKINS , *MEDICINAL plants , *MICE , *NEUTROPHILS , *PLANT stems , *GASTRIC diseases , *TOXICITY testing , *TUMOR necrosis factors , *PLANT extracts , *PHARMACODYNAMICS - Abstract
Synadenium grantii Hook. f., popularly known as "janaúba" or "leiterinha", is used in the folk medicine to treat gastric disorders, some types of neoplasias and inflammatory diseases. The aim of this study was to show the anti-inflammatory activity of the methanol extract obtained from S. grantii stems and also certify the safety of the extract performing toxicological analysis. The anti-inflammatory activity was investigated using carrageenan-induced inflammation in the subcutaneous tissue of male Swiss mice orally pre-treated with the S. grantii extract (1, 3 or 10 mg/kg). The leukocyte influx (optical microscopy) and secretion of chemical mediators (TNF, IL-6 and IL-1β, by enzyme-linked immunosorbent assay) were quantified in the inflamed exudate. The toxicity was investigated using the dose-fixed procedure (acute toxicity) and repeated dose 28-day (subacute toxicity) in mice orally treated with S. grantii extract. The open field and rota-rod test were used to evaluate possible interference of adverse effect of S. grantii on motor coordination, locomotor and exploratory activity. The analysis of the inflammatory exudate of S. grantii -treated mice demonstrated reduction in the polymorphonuclear cells (PMN) migration to the inflamed tissue, as well as the reduction of the pro-inflammatory cytokines TNF and IL-1β. Furthermore, the acute and sub-acute toxicity studies did not show significant changes in body weight, general behaviour, biochemical parameters, organ weight and liver and kidney histopathological analysis. However, animals acutely treated with S. grantii presented reduction in the number of crosses in relation to the vehicle group, without significant difference in the number of elevations and latency time between the groups in rota-rod test. The obtained results allow to set the NOAEL (Non-observed-adverse-effect level) in 100 mg/kg for this specie of rodent. Together, the results herein obtained show that S. grantii extract presented anti-inflammatory activity by decreasing the influx of PMN to the inflamed tissue, as well as the cytokines TNF and IL-1β levels. In addition, S. grantii extract seemed not to present significant acute or subacute toxicity when administered to mice, demonstrating for the first time the safety of this extract, when orally administered. Image 1 [ABSTRACT FROM AUTHOR]
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- 2021
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25. Biological and Toxicological Evaluation of N-(4methyl-phenyl)-4-methylphthalimide on Bone Cancer in Mice.
- Author
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Santin JR, da Silva GF, Pastor MVD, Broering MF, Nunes R, Braga RC, de Sousa ITS, Stiz DS, da Silva KABS, Stoeberl LC, Corrêa R, Filho VC, Dos Santos CEM, and Quintão NLM
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- Animals, Antineoplastic Agents toxicity, Bone Neoplasms secondary, Disease Models, Animal, Female, Humans, Male, Mice, Mice, Inbred C57BL, Phthalimides toxicity, Antineoplastic Agents therapeutic use, Bone Neoplasms drug therapy, Breast Neoplasms pathology, Phthalimides therapeutic use
- Abstract
Background: It was recently demonstrated that the phthalimide N-(4-methyl-phenyl)-4- methylphthalimide (MPMPH-1) has important effects against acute and chronic pain in mice, with a mechanism of action correlated to adenylyl cyclase inhibition. Furthermore, it was also demonstrated that phthalimide derivatives presented antiproliferative and anti-tumor effects. Considering the literature data, the present study evaluated the effects of MPMPH-1 on breast cancer bone metastasis and correlated painful symptom, and provided additional toxicological information about the compound and its possible metabolites., Methods: In silico toxicological analysis was supported by in vitro and in vivo experiments to demonstrate the anti-tumor and anti-hypersensitivity effects of the compound., Results: The data obtained with the in silico toxicological analysis demonstrated that MPMPH-1 has mutagenic potential, with a low to moderate level of confidence. The mutagenicity potential was in vivo confirmed by micronucleus assay. MPMPH-1 treatments in the breast cancer bone metastasis model were able to prevent the osteoclastic resorption of bone matrix. Regarding cartilage, degradation was considerably reduced within the zoledronic acid group, while in MPMPH-1, chondrocyte multiplication was observed in random areas, suggesting bone regeneration. Additionally, the repeated treatment of mice with MPMPH-1 (10 mg/kg, i.p.), once a day for up to 36 days, significantly reduces the hypersensitivity in animals with breast cancer bone metastasis., Conclusion: Together, the data herein obtained show that MPMPH-1 is relatively safe, and significantly control the cancer growth, allied to the reduction in bone reabsorption and stimulation of bone and cartilage regeneration. MPMPH-1 effects may be linked, at least in part, to the ability of the compound to interfere with adenylylcyclase pathway activation., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)
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- 2019
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26. Genotoxic and antigenotoxic activity of acerola (Malpighia glabra L.) extract in relation to the geographic origin.
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Nunes Rda S, Kahl VF, Sarmento Mda S, Richter MF, Abin-Carriquiry JA, Martinez MM, Ferraz Ade B, and Da Silva J
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- Animals, Ascorbic Acid analysis, Biphenyl Compounds, Brazil, Chromatography, High Pressure Liquid, Comet Assay, Free Radical Scavengers chemistry, Free Radicals, Fruit chemistry, Geography, Inhibitory Concentration 50, Male, Mice, Picrates, Quercetin analysis, Rutin analysis, DNA Damage, Malpighiaceae chemistry, Plant Extracts chemistry
- Abstract
Malpighia glabra L, popularly known as acerola, is considered a functional fruit and therefore is taken to prevent disease or as adjuvant to treatment strategies, since the fruit is an undeniable source of vitamin C, carotenoids, and flavonoids. Acerola is a natural source of vitamin C, flavonoids, and carotenoids. Its chemical composition is affected by genetic uniformity of the orchards and environmental factors. Considering the extensive growth of the culture of acerola in Brazil as well as its widespread use, this study evaluates the genotoxic and antigenotoxic activity of acerola in relation to geographical origin using the comet assay in mice blood cells in vitro. No acerola samples showed potential to induce DNA damage, independently of origin. Also, for antigenotoxicity activity, only the acerola sample from São Paulo reduced DNA damage induced by hydrogen peroxide (by about 56%). The sample from Ceará showed good antioxidant activity by the 2,2-diphenyl-1-picrylhydrazyl assay, in agreement with its higher rutin, quercetin, and vitamin C levels. Additional studies with other treatment regimens are necessary to better understand the impact of the complex mixture of acerola on genomic stability., (Copyright © 2012 John Wiley & Sons, Ltd.)
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- 2013
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