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Your search keyword '"SILVA, LUÍS"' showing total 9 results
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9 results on '"SILVA, LUÍS"'

4. Prevalence of Burnout Syndrome and other psychiatric disorders among health professionals during the COVID-19 pandemic: A systematic review and meta-analysis protocol

Author

Medeiros, Kleyton Santos de, primary, Ferreira de Paiva, Letícia Maniçoba, additional, Macêdo, Luíza Thomé de Araújo, additional, Farias de Souza, Wederson, additional, Soares da Silva, Luís Antônio, additional, Sarmento, Ayane Cristine Alves, additional, Costa, Ana Paula Ferreira, additional, Freitas, Cijara Leonice, additional, and Gonçalves, Ana Katherine, additional

Published
2021
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5. Acceptability of daily pre-exposure prophylaxis among adolescent men who have sex with men, travestis and transgender women in Brazil: A qualitative study

Author

Zucchi, Eliana Miura, primary, Couto, Marcia Thereza, additional, Castellanos, Marcelo, additional, Dumont-Pena, Érica, additional, Ferraz, Dulce, additional, Félix Pinheiro, Thiago, additional, Grangeiro, Alexandre, additional, da Silva, Luís Augusto Vasconcelos, additional, Dourado, Inês, additional, Pedrana, Leo, additional, Santos, Fernanda Soares de Resende, additional, and Magno, Laio, additional

Published
2021
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9. Integrated Analysis of COX-2 and iNOS Derived Inflammatory Mediators in LPS-Stimulated RAW Macrophages Pre-Exposed to Echium plantagineum L. Bee Pollen Extract.

Author

Moita, Eduarda, Gil-Izquierdo, Angel, Sousa, Carla, Ferreres, Federico, Silva, Luís R., Valentão, Patrícia, Domínguez-Perles, Raúl, Baenas, Nieves, and Andrade, Paula B.

Subjects
CYCLOOXYGENASE 2, INFLAMMATORY mediators, OXIDATIVE stress, MACROPHAGES, ANTI-inflammatory agents, PROSTAGLANDINS, BEE pollen, PHYSIOLOGICAL effects of nitric oxide, ECHIUM plantagineum, PLANT extracts
Abstract

Oxidative stress and inflammation play important roles in disease development. This study intended to evaluate the anti-inflammatory and antioxidant potential of Echium plantagineum L. bee pollen to support its claimed health beneficial effects. The hydromethanol extract efficiently scavenged nitric oxide (•NO) although against superoxide (O2•−) it behaved as antioxidant at lower concentrations and as pro-oxidant at higher concentrations. The anti-inflammatory potential was evaluated in LPS-stimulated macrophages. The levels of •NO and L-citrulline decreased for all extract concentrations tested, while the levels of prostaglandins, their metabolites and isoprostanes, evaluated by UPLC-MS, decreased with low extract concentrations. So, E. plantagineum bee pollen extract can exert anti-inflammatory activity by reducing •NO and prostaglandins. The extract is able to scavenge the reactive species •NO and O2•− and reduce markers of oxidative stress in cells at low concentrations. [ABSTRACT FROM AUTHOR]

Published
2013
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