Triterpene
Mostrando 13-24 de 103 artigos, teses e dissertações.
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13. Biological activities and phytochemical profile of Passiflora mucronata from the Brazilian restinga
ABSTRACT In general, Passiflora species have been reported for their folk medicinal use as sedative and anti-inflammatory. However, P. caerulea has already been reported to treat pulmonary diseases. Severe pulmonary tuberculosis, generally caused by Mycobacterium tuberculosis strains resistant to multiple drugs, can lead to deleterious inflammation and high
Rev. bras. farmacogn.. Publicado em: 2017-12
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14. Synthesis by Click Reactions and Antiplasmodial Activity of Lupeol 1,2,3-Triazole Derivatives
Lupeol, a triterpene frequently found in Asteraceae plant species, showed moderate to low activity in different strains of Plasmodium falciparum, the most virulent malaria etiological agents. In this work, lupeol was isolated from Parahancornia fasciculata, a plant that is used to treat malaria in the Amazonia region. In the search of more activity lupeol de
J. Braz. Chem. Soc.. Publicado em: 2017-10
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15. Psychotria viridis: Chemical constituents from leaves and biological properties
ABSTRACT The phytochemical study of hexane, chloroform and methanol extracts from leaves of Psychotria viridis resulted in the identification of: the pentacyclic triterpenes, ursolic and oleanolic acid; the steroids, 24-methylene-cycloartanol, stigmasterol and β-sitosterol; the glycosylated steroids 3-O-β-D-glucosyl-β-sitosterol and 3-O-β-D-glucosyl-stig
An. Acad. Bras. Ciênc.. Publicado em: 2017-06
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16. Laboratory evaluation of Clusia fluminensis extracts and their isolated compounds against Dysdercus peruvianus and Oncopeltus fasciatus
ABSTRACT The effects of the hexanic extracts of the fruits and flowers of Clusia fluminensis Planch. & Triana, Clusiaceae, as well as their main constituents, the triterpene lanosterol and the benzophenone clusianone, were evaluated on hemipterans Dysdercus peruvianus and Oncopeltus fasciatus. The topical treatments of insects with the hexanic extracts signi
Rev. bras. farmacogn.. Publicado em: 2017-02
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17. The lipidome, genotoxicity, hematotoxicity and antioxidant properties of andiroba oil from the Brazilian Amazon
Abstract Andirobeira is an Amazonian tree, the seeds of which produce a commercially valuable oil that is used in folk medicine and in the cosmetic industry. Andiroba oil contains components with anti-inflammatory, cicatrizing and insect-repellant actions. However, virtually nothing is known of the safety of this oil for humans. The aim of this work was ther
Genet. Mol. Biol.. Publicado em: 13/05/2016
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18. Ursane Saponins from the Stems of
Firmiana simplex and their Cytotoxic ActivityThree new ursane triterpene saponins, together with twelve known ursane triterpenes were isolated from the stems of
Firmiana simplex . The structures of the saponines were elucidated on the basis of spectroscopic and chemical methods. The cytotoxic activity of all compounds was evaluatedin vitro against lung adenocarcinomJ. Braz. Chem. Soc.. Publicado em: 2015-07
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19. Oleanane-type triterpenoid: an anti-inflammatory compound of the roots Arrabidaea brachypoda
AbstractArrabidaea brachypoda Bureau, Bignoniaceae, known as "cipó-una", is widely used in traditional medicine in Southeastern and Northeastern Brazil for kidney stones and painful joints. This study was aimed at evaluating the anti-inflammatory proprieties of the oleanane-type triterpenoid 3β-estearioxy-olean-12-ene isolated from the roots of A. brachypo
Rev. bras. farmacogn.. Publicado em: 2015-06
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20. Constituents of Corynaea crassa "Peruvian Viagra"
Abstract A phytochemical investigation of methanol and n-hexane extracts of tuber/roots of Corynaea crassa Hook. f., Balanophoraceae, led to the isolation and characterization of β-sitosterol, lupenone, β-amyrone, lupeol, and β-amyrine. Unusual complex 1:1 mixtures of lupenone/β-amyrone and lupeol/β-amyrine obtained from the extracts were identified by
Rev. bras. farmacogn.. Publicado em: 2015-04
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21. Polycarpol in Unonopsis, Bocageopsis and Onychopetalum Amazonian species: chemosystematical implications and antimicrobial evaluation
Polycarpol, a recurrent lanostane-type triterpene in Annonaceae family, was confirmed by thin layer chromatography and mass spectrometry analysis in the aerial parts (twigs and trunk barks) of Unonopsis duckei R.E. Fr., U. floribunda Diels, U. rufescens (Baill.) R.E. Fr., U. stipitata Diels, Onychopetalum amazonicum R.E. Fr. and Bocageopsis pleiosperma Maas.
Rev. bras. farmacogn.. Publicado em: 2015-02
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22. Composição química dos grãos e da cera foliar de variedade Glycine max (L.) Merrill cv. MG/ BR-46 Conquista cultivada sob atmosfera enriquecida de gás carbônico e temperatura elevada
The concentration of carbon dioxide (CO2) has increased in the last decades, due mainly to the combustion of fossil fuels. A gradual increase of the global temperature is expected as a consequence. Soybean is an important crop in most countries, being consumed either as human or domestic animals food. The present work is composed of two chapters, the first d
Publicado em: 07/02/2014
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23. Phytochemical study and antinociceptive effect of the hexanic extract of leaves from Combretum duarteanum and friedelin, a triterpene isolated from the hexanic extract, in orofacial nociceptive protocols
Combretum duarteanum Cambess, Combretaceae, is a plant widely distributed in Northeastern Brazil and, in folk medicine, stems and leaves are used for pain treatment. We investigated the antinociceptive effects of the hexanic extract of leaves from C. duarteanum and of friedelin, its main compound, in formalin-, glutamate- and capsaicin- induced orofacial no
Rev. bras. farmacogn.. Publicado em: 2014-01
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24. Pentacyclic triterpenes from Cecropia telenitida with immunomodulatory activity on dendritic cells
Pentacyclic triterpene Natural product Cytokine modulation Anti-inflammatory activity Dendritic cells Pentacyclic triterpenes are a large family of plant metabolites that exhibit a wide array of biological activities. The genus Cecropia,which encompasses many plant species, has been used as traditional medicine for the treatment of inflammatory diseases and
Rev. bras. farmacogn.. Publicado em: 2013-10