Zobrazeno 1 - 10
of 145
pro vyhledávání: '"Mariana Helena Chaves"'
Autor:
Andréia G. A. Silva, Rodrigo de A. Moreira, Renato Pinto de Sousa, Evaldo dos S. M. Filho, Marcia D. A. Veras, Mariana Helena Chaves, Sâmya D. L. Freitas
Publikováno v:
Química Nova, Vol 44, Iss 8, Pp 954-962 (2021)
CHEMICAL COMPOSITION AND PHOTOPROTECTIVE AND ANTIRADICAL ACTIVITIES OF THE BRANCHES OF Platonia insignis (CLUSIACEAE). The chemical study of the branches of Platonia insignis enabled the isolation of the biflavonoid morelloflavone and the identificat
Externí odkaz:
https://doaj.org/article/5ad321d827004a13ab45c62898fec8e3
Autor:
Adonias Almeida Carvalho, Lucivania Rodrigues dos Santos, Jurema Santana de Freitas, Renato Pinto de Sousa, Ruth Raquel Soares de Farias, Gerardo Magela Vieira Júnior, Mahendra Rai, Mariana Helena Chaves
Publikováno v:
Arabian Journal of Chemistry, Vol 15, Iss 5, Pp 103765- (2022)
The aqueous fraction obtained by the partition of the ethanolic extract from leaves of Machaerium acutifolium (Fabaceae-Papilionoideae) was analyzed by high-performance liquid chromatography with a diode array detector (HPLC-DAD) and direct insertion
Externí odkaz:
https://doaj.org/article/8372b2a42a62489589befcca95be0cc3
Autor:
Angellica Fernandes de OLIVEIRA, Lindsey CASTOLDI, Gerardo Magela VIEIRA JUNIOR, Evaldo dos Santos MONÇÃO FILHO, Mariana Helena CHAVES, Domingos de Jesus RODRIGUES, Marina Mariko SUGUI
Publikováno v:
Acta Amazonica, Vol 49, Iss 2, Pp 145-151 (2019)
ABSTRACT The skin secretion from toads of the Bufonidae family has great potential in the search for new active compounds to be used as drug candidates in treating some diseases, among them cancer. In this context, this study aimed to evaluate the cy
Externí odkaz:
https://doaj.org/article/271b124b32d646128a31524b6f798577
Autor:
Karina Moura de Melo, Francisca Tuelly Bandeira de Oliveira, Rose Anny Costa Silva, Ana Luiza Gomes Quinderé, José Delano Barreto Marinho Filho, Ana Jérsia Araújo, Eanes Delgado Barros Pereira, Adonias Almeida Carvalho, Mariana Helena Chaves, Vietla Satyanarayana Rao, Flávia Almeida Santos
Publikováno v:
Biomedicine & Pharmacotherapy, Vol 109, Iss , Pp 1860-1866 (2019)
Previous studies have reported the anti-obesity effects of α, β-Amyrin in high fat-fed mice. This study aimed to evaluate whether α, β-Amyrin has an anti-adipogenic effect in 3T3-L1 murine adipocytes and to explore the possible underlying mechani
Externí odkaz:
https://doaj.org/article/2361ce109da04292b0dda8d36ff45571
Autor:
LOURDES C.S. LOPES, LUCAS M. BRITO, THAYLLAN T. BEZERRA, KLEYTON N. GOMES, FERNANDO A. DE A. CARVALHO, MARIANA HELENA CHAVES, WELTER CANTANHÊDE
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 90, Iss 3, Pp 2679-2689 (2018)
Abstract Gold (Au0) and silver (Ag0) nanoparticles were synthesized using tannic acid (TA) as both reducing and stabilizer. Nanoparticles formation, stability, and interaction with TA were compared to citrate-coated nanoparticles and monitored by UV-
Externí odkaz:
https://doaj.org/article/8e72ffdc15c64d1c8953c6a7eeabdf95
Autor:
Danielly Albuquerque Costa, Mariana Helena Chaves, Wisllan Cesar Santos Silva, Charllyton Luis Sena Cost
Publikováno v:
Acta Amazonica, Vol 40, Iss 1, Pp 207-212 (2010)
A investigação fitoquímica das cascas do caule de Sterculia striata St. Hil. et Naudin, através de métodos cromatográficos, conduziu ao isolamento dos esteróides sitosterol, estigmasterol e sitosterol-3-O-β-D-glicopiranosídeo, além de quatr
Externí odkaz:
https://doaj.org/article/017e86fa32554e8cb433b21e6ffc9101
Publikováno v:
Química Nova, Vol 28, Iss 2, Pp 183-187 (2005)
Three mixtures of triterpenes (maniladiol and breine; alpha and beta-amyrin; lupenone, alpha and beta-amyrinone) were isolated from Protium heptaphyllum March resin. The structural identification was based on NMR and mass spectrometry data. Lupenone,
Externí odkaz:
https://doaj.org/article/740f7dfea4e94ebe9f38c9451769a5db
Autor:
Francisca Diana da Silva Araújo, Antonio do Nascimento Cavalcante, Maria das Dores B. Sousa, Carla Verônica Rodarte de Moura, Mariana Helena Chaves, Sabria Aued-Pimentel, Miriam Solange Fernandes Caruso, Luimar José Tozetto, Soane Kaline Morais Chaves
Publikováno v:
Energies, Vol 10, Iss 9, p 1360 (2017)
The objective of this work was to produce methyl biodiesel from Bombacopis glabra (B. glabra) oil degummed with H3PO4. The methyl biodiesel was prepared in an alkaline medium, and characterized by physico-chemical parameters, thin-layer chrmatograghy
Externí odkaz:
https://doaj.org/article/e2fcdc77662248aab92eab84ccf4d609
Autor:
Adonias Almeida Carvalho, Lucivania Rodrigues dos Santos, Ruth Raquel Soares de Farias, Mariana Helena Chaves, Chistiane Mendes Feitosa, Gerardo Magela Vieira Júnior, Mônica Regina Silva de Araújo, Paulo Michel Pinheiro Ferreira, Claudia do Ó Pessoa
Publikováno v:
Química Nova, Vol 41, Iss 4, Pp 405-411
A tea made with the leaves or stem bark of Bauhinia pulchella Benth (Fabaceae) is used in the treatment of diabetes. Ethanol (EEF) and aqueous (EAF) extracts were obtained from the leaves and the antioxidant and citotoxic activities were tested, as w
Externí odkaz:
https://doaj.org/article/34b510ff33254fd091848b702b9e7e65
Autor:
Felipe Finger Banfi, Gabriela Camila Krombauer, Amanda Luisa da Fonseca, Renata Rachide Nunes, Silmara Nunes Andrade, Millena Alves de Rezende, Mariana Helena Chaves, Evaldo dos Santos Monção Filho, Alex Guterres Taranto, Domingos de Jesus Rodrigues, Gerardo Magela Vieira Júnior, Whocely Victor de Castro, Fernando de Pilla Varotti, Bruno Antonio Marinho Sanchez
Publikováno v:
Journal of Venomous Animals and Toxins including Tropical Diseases
Abstract Background: The resistance against antimalarial drugs represents a global challenge in the fight and control of malaria. The Brazilian biodiversity can be an important tool for research and development of new medicinal products. In this cont
Externí odkaz:
https://doaj.org/article/7c28d3dbb91a41d7919a0a850f3ec02b