Results 111 to 120 of about 2,519,723 (219)

Steroidal and triterpenoidal glucosides from Passiflora alata

open access: yesJournal of the Brazilian Chemical Society, 2001
Five glycosides were isolated from leaves of P. alata. The structures 1-5 were obtained through extensive spectral analyses as 3-O-beta-D-glucopyranosyl-stigmasterol (1), 3-O-beta-D-glucopyranosyl-oleanolic acid (2), 3-O-beta-D-glucopyranosyl-(1->3)-beta-
Reginatto Flávio H.   +5 more
doaj  

Oleanolic acid induces relaxation and calcium-independent release of endothelium-derived nitric oxide

open access: yes, 2008
BACKGROUND AND PURPOSE: The present study investigated the mechanisms by which oleanolic acid, a component of olive oil, increases release of nitric oxide (NO). EXPERIMENTAL APPROACH: Measurements of isometric tension, NO concentration, or endothelial
Simonsen, Ulf   +6 more
core   +1 more source

Oleanolic acid combined with aspirin plays antitumor roles in colorectal cancer via the Akt/NFκB/IκBα/COX2 pathway

open access: yesCell Death Discovery
Among the common malignancies, colorectal cancer (CRC) is often resistant to chemotherapy because of drug resistance and severe toxicity. Currently, aspirin is one of the most promising CRC chemopreventive drugs, both for primary prevention and for ...
Yulv Zhou   +5 more
doaj   +1 more source

Estudo do efeito e do mecanismo de ação de triterpenos naturais e da 1,25 (OH)2 vitamina D3 na homeostasia da glicose: papel destes compostos como secretagogos de insulina e/ou insulinomiméticos [PDF]

open access: yes, 2015
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-Graduação em Bioquímica, Florianópolis, 2015.A hiperglicemia crônica proveniente da diminuição da produção insulínica e do aumento da resistência ...
Castro, Allisson Jhonatan Gomes
core  

Deterministic 13C NMR analysis of oleanolic and ursolic acid derivatives based on application of 2D INADEQUATE NMR technique

open access: yesDiscover Chemistry
This study focuses on the assignment of the 1H and 13C NMR spectra of four oleanene- and four ursene-type triterpenes, namely oleanolic acid (1), ursolic acid (2), 3-O-acetyloleanolic acid (3), 3-O-acetylursolic acid (4), 3-epi-oleanolic acid (5), 3-epi ...
Chie Honda   +4 more
doaj   +1 more source

6b-hydroxymaslinic acid, a triterpene from Vochysia ferruginea

open access: yesJournal of the Brazilian Chemical Society, 2000
A novel oleane acid was isolated from the leaves and the fruits of Vochysia ferruginea. The structure of the new triterpenoid was elucidated by NMR spectroscopy as 2alpha,3beta,6beta-trihydroxyolean-12-en-28-oic acid (6beta-hydroxymaslinic acid, 1).
Zucaro Z. Yasmin L.   +3 more
doaj  

Microbial Transformation of Oleanolic Acid.(4)

open access: yesYAKUGAKU ZASSHI, 1972
HIKINO, HIROSHI   +2 more
openaire   +3 more sources

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