Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Rita de Cássia Saraiva Nunomura"'
Autor:
Régis Tribuzy de OLIVEIRA, Lorena Mota de CASTRO, Whendel Mesquita do NASCIMENTO, Maria Letícia de Sousa GOMES, Roseane Pinto Martins de OLIVEIRA, Ana Cecilia Nina LOBATO, Rita de Cássia Saraiva NUNOMURA, Carlos Victor Lamarão PEREIRA, Sandra Patrícia ZANOTTO
Publikováno v:
Acta Amazonica, Vol 53, Iss 3, Pp 254-263 (2023)
ABSTRACT The yellow uxi (Endopleura uchi) is a tree native to the Amazon and its fruits are appreciated in the region. It is rich in total phenols and its bark is known to have high bergenin content, an isocoumarin derivative that presents several ph
Externí odkaz:
https://doaj.org/article/c64cf71791304ee9b06805bc535ab33d
Autor:
Rochelly da Silva Mesquita, Andrii Kyrylchuk, Anton Cherednichenko, Ingrity Suelen Costa Sá, Lílian Macedo Bastos, Felipe Moura Araújo da Silva, Rita de Cássia Saraiva Nunomura, Andriy Grafov
Publikováno v:
Molecules, Vol 27, Iss 10, p 3138 (2022)
Alkaloids are natural products known as ethnobotanicals that have attracted increasing attention due to a wide range of their pharmacological properties. In this study, cholinesterase inhibitors were obtained from branches of Abuta panurensis Eichler
Externí odkaz:
https://doaj.org/article/22ce889ecfaf495097885ce68c9a5768
Autor:
Rochelly da Silva Mesquita, Andrii Kyrylchuk, Regiane Costa de Oliveira, Ingrity Suelen Costa Sá, Gabriel Coutinho Borges Camargo, Gemilson Soares Pontes, Felipe Moura Araújo da Silva, Rita de Cássia Saraiva Nunomura, Andriy Grafov
Publikováno v:
PLoS ONE, Vol 15, Iss 9, p e0239364 (2020)
Natural products obtained from species of the genus Abuta (Menispermaceae) are known as ethnobotanicals that are attracting increasing attention due to a wide range of their pharmacological properties. In this study, the alkaloids stepharine and 5-N-
Externí odkaz:
https://doaj.org/article/d3cb14cdb8b540f8b7b79d91ac0afefb
Constituintes químicos isolados dos galhos e cascas de amapazeiro (Parahancornia amapa, Apocynaceae)
Autor:
Marycleuma Campos Henrique, Rita de Cássia Saraiva Nunomura, Sergio Massayoshi Nunomura, Suniá Gomes Silva
Publikováno v:
Acta Amazonica, Vol 44, Iss 4, Pp 533-538 (2014)
Parahancornia amapa (Apocynaceae) é típica da região amazônica e conhecida popularmente como amapazeiro e muito utilizada na medicina popular da região Amazônica. O objetivo desse trabalho foi o estudo fitoquímico dos galhos e cascas dessa esp
Externí odkaz:
https://doaj.org/article/561f15033a51435480837679e6eed613
Autor:
Ellen Cristina Costa da Silva, Magno Perêa Muniz, Rita de Cássia Saraiva Nunomura, Sergio Massayoshi Nunomura, Gislene Almeida Carvalho Zilse
Publikováno v:
Química Nova, Vol 36, Iss 5, Pp 628-633 (2013)
We investigated the phenolic constituents and antioxidant activity of geopropolis from two species of stingless Amazonian bees, Melipona interrupta and Melipona seminigra. The chemical investigation of geopropolis from Melipona interrupta led to the
Externí odkaz:
https://doaj.org/article/a29354da8c414ed2bbe8ed980fd577ba
Autor:
Rita de Cássia Saraiva Nunomura, Angelo C. Pinto, Sergio Massayoshi Nunomura, Adrian Martin Pohlit, Ana Cláudia Fernandes Amaral
Publikováno v:
Química Nova, Vol 35, Iss 11, Pp 2153-2158 (2012)
Simaba guianensis subesp. ecaudata (Simaroubaceae) is a tree found in the Brazilian Amazon. This work describes for the first time the fractionation of stems of this species that resulted in the isolation of the cytotoxic triterpene piscidinol A, the
Externí odkaz:
https://doaj.org/article/3cb375d39c5d4595b22a65c754806ed0
Publikováno v:
Química Nova, Vol 35, Iss 10, Pp 1936-1939 (2012)
Six limonoids were isolated in hexane extract obtained from the seeds and pericarps of Carapa guianensis. The structures of the limonoids were determined based on the analysis of High Resolution Mass Spectroscopy and Nuclear Magnetic Resonance (uni-a
Externí odkaz:
https://doaj.org/article/b3c13cfa1f0047d5b560474eb957e7d8
Autor:
Saulo L. da Silva, Viviane Guedes de Oliveira, Tomomasa Yano, Rita de Cássia Saraiva Nunomura
Publikováno v:
Acta Amazonica, Vol 39, Iss 1, Pp 187-191 (2009)
Endopleura uchi (Huber) Cuatrec. is an Amazon species traditionally used as treatment for inflammations and female disorders. Bergenin was isolated from ethyl acetate fraction of bark of E. uchi by using column chromatography over sephadex LH-20 and
Externí odkaz:
https://doaj.org/article/9c58fa46a27a4adc9f980c1fcf01a44a
Autor:
Rita de Cássia Saraiva Nunomura, Ellen Cristina Costa da Silva, Denilson Ferreira Oliveira, Adriana Mello Garcia, Jankerle Neves Boeloni, Sergio Massayoshi Nunomura, Adrian Martin Pohlit
Publikováno v:
Acta Amazonica, Vol 36, Iss 3, Pp 327-330 (2006)
1300 ppm (1.3 g / L), water and ethanol extracts prepared from stems or roots of Picrolemma sprucei Hook. f. were lethal (85-90 % mortality) in vitro to Haemonchus contortus (Barber Pole Worm) larvae, a gastrointestinal nematode parasite found in dom
Externí odkaz:
https://doaj.org/article/f0be9ff52e884fd4abdd0b2dac6dfab0
Autor:
Kamila Rangel Primo FERNANDES, Paulo Senna BITTERCOURT, Afonso Duarte Leão de SOUZA, Antonia Queiroz Lima de SOUZA, Felipe Moura Araújo da SILVA, Emerson Silva LIMA, Leonard Domingo Rosales ACHO, Rita de Cássia Saraiva NUNOMURA, Ana Frazão TEIXEIRA, Hector Henrique Ferreira KOOLEN
Publikováno v:
Acta Amazonica
ABSTRACT Virola venosa, popularly known in Brazil as ucuuba-da-mata, occurs naturally in the Amazon region and has potential to provide useful natural compounds, as already known for other Virola species. Therefore, the objective of this study was to
Externí odkaz:
https://doaj.org/article/c619492c6c54457db55b6e1d1f3043b4